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1 Posts

AI

Deus ex prompt
IT Kultur AI

Deus ex prompt

Gedanken zu AI

23 Mar 2025
22 Posts

Admin

pstop and prun
Solaris republished Admin

pstop and prun

Stopping and starting a process or thread

02 May 2025
svccfg editprop
Solaris republished Admin

svccfg editprop

Remembering svc properties - made easy

02 May 2025
Getting the command line and environment of running processes
Solaris republished Admin

Getting the command line and environment of running processes

Rescueing the environment.

28 Apr 2025
useradd defaults
Solaris republished Admin

useradd defaults

Changing useradd defaults

27 Apr 2025
Using BART
Solaris republished Admin Security

Using BART

Basic audit reporting tool

26 Apr 2025
Setting up NTP in Solaris 11
Solaris republished Admin

Setting up NTP in Solaris 11

A question of time

25 Apr 2025
Synchronous svcadm
Solaris republished Admin

Synchronous svcadm

Waiting for results

23 Apr 2025
Time-based limits to SSH
Solaris republished Admin Security

Time-based limits to SSH

Lockout after midnight

23 Apr 2025
File auditing
Solaris republished Admin

File auditing

Activate auditing for select files

19 Apr 2025
Hashed
Solaris republished Admin

Hashed

Directly setting a hashed password

18 Apr 2025
System Attributes in your filesystem
Solaris Admin

System Attributes in your filesystem

More fun with attributes

16 Apr 2025
Protecting files from accidental deletion
Solaris republished Admin

Protecting files from accidental deletion

Additional protection against rm -rf *

16 Apr 2025
pfedit for sensitive files
Solaris Admin Security

pfedit for sensitive files

Keeping diffs out of the audit log

14 Apr 2025
Auditing pfedit
Solaris republished Admin Security

Auditing pfedit

Recording the change

14 Apr 2025
Basics of pfedit
Solaris republished Admin Security

Basics of pfedit

Delegate the edit

13 Apr 2025
Filesystem latencies
Solaris republished Admin

Filesystem latencies

From the perspective of the filesystem

12 Apr 2025
ptime
Solaris republished Admin

ptime

What have you done ... in the past?

11 Apr 2025
Disk latencies with iostat
Solaris republished Admin

Disk latencies with iostat

Look, no Dtrace script ...

08 Apr 2025
pam_fm_notify
Solaris republished Admin

pam_fm_notify

Notification about faults at login.

06 Apr 2025
Named routes
Solaris republished Admin Network

Named routes

Where the streets have no^H^Ha name.

05 Apr 2025
Post-mortem pfiles
Solaris republished Admin

Post-mortem pfiles

Finding open files in a core dump

04 Apr 2025
reflink
Solaris republished Admin

reflink

Faster copies through technology

03 Apr 2025
1 Posts

Administration

Renewing certificates - a horrible hack
Linux Administration Security

Renewing certificates - a horrible hack

Automatic renewal of Let's Encrypt certificates without an public webserver

16 Feb 2025
2 Posts

Backup

Almost RAIDless
NAS Homelab Backup TrueNAS Scale

Almost RAIDless

My personal approach of protecting the data on my home NAS with replicas instead of RAID.

14 Mar 2025
Lost trust
NAS Homelab Backup

Lost trust

A dropped disk. Thoughts about trust in data persistency and the loss of this trust.

11 Mar 2025
2 Posts

Bahn

Würzburg
Geschaeftsreise Bahn

Würzburg

Als der Baum fiel - herbeigeschriebenes Pech.

19 Mar 2025
Frankfurt
Geschaeftsreise Vortraege Bahn

Frankfurt

Als die Maske fiel - ein Reisebericht über die Fahrt mit der Bahn nach Frankfurt für einen Vortrag.

23 Feb 2025
3 Posts

Blog

Spring cleaning 2025
Blog

Spring cleaning 2025

Spring is coming and my blog needed a cleanup

15 Mar 2025
Blog personal

Umbau

At first a note to my reader in English language: In the future, only blog entries about Solaris and IT in general will be in English language. Everything e...

04 Jun 2024
Blog

Cleanup

I’m just in the process to clean up the blog and updating some static pages. The cleanup was nescessary to be able to run the scripts to publish new blog ent...

11 Oct 2023
31 Posts

Cycling

Berlin
Cycling

Berlin

Ich frage mich bis heute an vielen Stellen, wie mein Gehirn verschaltet ist. Okay, fragen sich wahrscheinlich mehr Menschen, die mich kennen. Vermutlich mit ...

01 Oct 2024
Imperial Century - oder: Nach Fehmarn an einem Tag
Cycling

Imperial Century - oder: Nach Fehmarn an einem Tag

Ich glaube jeder Mensch hat einen oder mehrere Sehnsuchtsorte. Orte, an denen sie oder er gerne sein mag. Orte zu denen man eine besondere Verbundenheit spür...

15 Sep 2024
Mehr - oder: 60000
Cycling

Mehr - oder: 60000

Dieser Text ist im Grundsatz schon etwas älter. Ich bin irgendwie nicht dazu gekommen, ihn ins Blog zu stellen. Er steht aber ein bisschen mit dem nächsten T...

09 Sep 2024
Magie
Cycling

Magie

Es war gestern endlich ein Tag, an dem der Finger nicht bei jeder Erschütterung schmerzte. Mag auch damit zusammenhängen, das ich diese blöde Schiene durch T...

09 Jul 2024
Nass
Cycling

Nass

Ich schrieb ja vor einigen Tagen, das ich auf der langen Fahrt gestürzt bin. Ich war gestern morgen noch mal beim Doc, nachdem der Finger keine Anstalten mac...

04 Jul 2024
Hundertvierundfünfzig
Cycling

Hundertvierundfünfzig

Als ich gestern auf meinem Garmin die Fahrt beendet habe, habe ich für mich ganz persönlich erst einmal ein Mikrophon gedanklich fallen gelassen.Ja, um es kl...

29 Jun 2024
Relikte
Cycling

Relikte

Bei mir hat sich für Samstag eine Idee festgesetzt für eine Strecke. Ich muss mal gucken ob ich das wirklich machen werde. Sonntag kann (naja, ehrlicherweis...

28 Jun 2024
Nimmermehr
Cycling

Nimmermehr

Auch heute war wieder eine Überquerung der A7 der Punkt an dem ich umgedreht bin. So irgendwie die Elbe östlich von Lauenburg ein gefühltes Hindernis ist, so...

27 Jun 2024
Unentdeckt
Cycling Personal

Unentdeckt

Ich beginne ja mittlerweile meine Texte gerne mit Musik, also Gedanken zu Musik. Dieser Text startet auch wieder mit einem Lied, das ich seit vielen Jahren m...

26 Jun 2024
Weit
Cycling

Weit

Es war gestern einfach tolles Wetter zum Radfahren. Sonne, selbstredend Sonnenmilch, nachdem mich ein recht angenehmer Nachmittag am Hamburger Hafen leicht v...

24 Jun 2024
Fern
Cycling Hamburg Elbe

Fern

Fährt man auf der niedersächsischen Seite beispielsweise von Bleckede nach Hamburg-Harburg, bietet es sich an, an der Elbe langzufahren. Ich finde die Gegend...

17 Jun 2024
Artemis
Cycling

Artemis

Seit längerer Zeit bin ich heute mal wieder mit dem Rad durch die Lüneburger Innenstadt gefahren. Sozusagen als Abschluss einer Tour, die mich an Lauenburg ...

16 Jun 2024
Too much analysis alert
Cycling

Too much analysis alert

Wie gross ist eigentlich der Unterschied zwischen EBike-Fahren und Rennradfahren. Erstaunlich gering wie ich finde. Ich habe mit deutlich mehr gerechnet. Ich...

14 Jun 2024
Von Mohnblumen
Cycling Geschichte

Von Mohnblumen

Verdammt noch mal, es ist Mitte Juni. Nur hat dieses Jahr das noch nicht bemerkt. Eigentlich sollte es warm sein. Zumindestens ein bisschen. Handbekleidung ...

09 Jun 2024
Von Holzwegen und Schiessscharten
Cycling personal

Von Holzwegen und Schiessscharten

Ich bin heute das erste mal seit längerer Zeit wieder mit Musik auf den Ohren gefahren. Ich habe eine Sonnenbrille, die gleichzeitig ein Bluetooth-Kopfhörer ...

09 Jun 2024
Durch die Göhrde
Cycling personal

Durch die Göhrde

Ich habe durch die ersten Blogeinträge hier einiges über das neue Theme gelernt. Die Bilder, die sich über die gesamte Breite des Browserfenster ziehen, woll...

09 Jun 2024
Von Beinahekatastrophen und der Freude, Glück gehabt zu haben
Cycling personal

Von Beinahekatastrophen und der Freude, Glück gehabt zu haben

Meine Gemüt will momentan einfach raus. Das Wetter ist entgegen meiner Erwartung einfach viel zu gut, um Indoor zu fahren. Auch wenn es wahrscheinlich nicht ...

07 Jun 2024
Von Erinnerungsorten und Waldwegen
Cycling personal

Von Erinnerungsorten und Waldwegen

Fenster auf, die Sonne scheint. Naja, ein kleines bisschen. Ich will raus. Liege ohnehin schon zu lange wach rum. I can get no sleep. Wie seit vielen, viele...

07 Jun 2024
Cycling WestRideStories

T minus 83 Tage - oder: Neuer Termin steht

Ich arbeite seit gestern wieder. Ich habe ja meinen Urlaub abgebrochen, weil ich den für den neuen Anlauf brauche. Urlaubstage sind halt eine sehr endliche R...

04 Jun 2024
Cycling WestRideStories

T minus 86 Tage - oder: Verschoben

Gestern war irgendwie ein blöder Tag. Und das schmeichelt dem Tag doch sehr. Ich schrieb in meinem letzten Artikel ja, das mein Knie gehalten hat. Nein, hat ...

01 Jun 2024
Cycling WestRideStories

Wieder T minus 2 Tage - oder: Patchen

Eigentlich wollte ich heute schon unterwegs sein. Die ersten 60 Kilometer unterwegs sein. Eigentlich. Aber ich habe eine grosse Dummheit begangen, von der ic...

30 May 2024
Cycling WestRideStories

T minus 1 Tag - oder: Von Nervösität und elektrischen Elefanten

Ich war in meinem Leben nicht wenig unterwegs. Aufgeregt bin ich trotzdem. War ich immer. Je weiter, desto aufgeregter. Morgen gehts los. Das was da morgen b...

29 May 2024
Cycling WestRideStories

T minus 2 Tage - oder: Vorbereitungen

Ich liege wieder früh wach. Es sind noch zwei Tage. Gestern habe ich es endlich geschafft, das Schutzblech ans Rad zu montieren. Ich muss an einer Stelle he...

28 May 2024
Cycling WestRideStories

T minus 3 Tage - oder: Unterhosen auf der Waage

Fahrräder - und die Teile aus denen sie bestehen - haben einen Auslegungsparameter, der sich Systemgewicht nennt. Systemgewicht heisst so viel : „Die Teile ...

27 May 2024
Cycling WestRideStories

T minus 4 Tage - oder: Schutzbleche

Schutzbleche mögen vor Wasser und Schlamm schützen, sie mögen vielleicht den Rahmen vor kleinen Steinchen schützen, die vom Reifen weggeschleudert werden. Si...

26 May 2024
Cycling WestRideStories

T minus 5 Tage - oder: In ein paar Tagen ...

Die Wiederinbetriebnahme des Workflows, um etwas in dieses Blog zu bringen, hat gleich als erstes mal wieder dazu geführt, das ich den ersten Entwurf dieses ...

25 May 2024
Cycling

Motivation

It’s well before 06:00 AM. I’m sitting on my indoor bike. Somewhat motivated by the last visit to my scale a day before. Thinking that a longer distance ride...

20 Jan 2024
Cycling

A few days ago ... 50001 km

A few days ago. This is the number of kilometers i ran or cycled since 2019. I tried to exactly hit 50000 … didn’t work. Hope that i will reach 6000 km th...

05 Nov 2023
Cycling LessonsLearned OnceUponATimeAServer IT

From cycling to computer systems performance – Part 1

This is my first longer blog entry after getting back to a more frequent blogging schedule. It will be a two part blog entry. It may start with cycling, howe...

03 Nov 2023
Cycling

500000

I wasn’t able to exactly hit the number, but yay …. half a million kilocalories. The screenshots shows calories, but the tool is doing the same error like mo...

18 Oct 2023
Cycling Gadgets

Smartbike

This summer wasn’t that good in regard of cycling. It wasn’t good at all. First half of the summer felt like a never-ending row of rainy days. Then a lot of...

12 Oct 2023
1 Posts

DTrace

fileops DTrace provider
Solaris republished DTrace

fileops DTrace provider

DTracing file operations.

30 Mar 2025
2 Posts

Docker

My content deployment process with Gitea
Linux Homelab Docker Jekyll

My content deployment process with Gitea

How I automated my multi-stage publication workflow with Gitea and Jekyll.

21 Mar 2025
Jekyll and Gitea
Linux Homelab Docker Jekyll

Jekyll and Gitea

How i automated the publication workflow of my Jekyll based blog with Gitea.

09 Mar 2025
1 Posts

Elbe

Fern
Cycling Hamburg Elbe

Fern

Fährt man auf der niedersächsischen Seite beispielsweise von Bleckede nach Hamburg-Harburg, bietet es sich an, an der Elbe langzufahren. Ich finde die Gegend...

17 Jun 2024
5 Posts

Gadgets

IT Gadgets

Probably just an overengineered small keyboard

(This is a test blog entry (based on a text I started a while ago) for the new Jekyll workflow) Sometimes you see a device which results in a “Must-have” re...

31 Dec 2023
IT Gadgets Recommendations

Docking

I wanted to get rid of a significant set of cables when I set up my new desk, there were a gazillion of cables flying around on my desk and I wanted to bring...

22 Oct 2023
Gadgets IT

Keyboards

It’s roughly 20 years ago that I’ve switched to use notebooks for work. Before my time at Sun i was able to convince my manager that i really needed the Powe...

15 Oct 2023
Gadgets IKEA

Åskväder

A few days ago, I needed some distraction and thus I drove one of my sisters to IKEA. I needed a desk lamp1 anyway and thus this looked like a good idea. At ...

13 Oct 2023
Cycling Gadgets

Smartbike

This summer wasn’t that good in regard of cycling. It wasn’t good at all. First half of the summer felt like a never-ending row of rainy days. Then a lot of...

12 Oct 2023
2 Posts

Geschaeftsreise

Würzburg
Geschaeftsreise Bahn

Würzburg

Als der Baum fiel - herbeigeschriebenes Pech.

19 Mar 2025
Frankfurt
Geschaeftsreise Vortraege Bahn

Frankfurt

Als die Maske fiel - ein Reisebericht über die Fahrt mit der Bahn nach Frankfurt für einen Vortrag.

23 Feb 2025
1 Posts

Geschichte

Von Mohnblumen
Cycling Geschichte

Von Mohnblumen

Verdammt noch mal, es ist Mitte Juni. Nur hat dieses Jahr das noch nicht bemerkt. Eigentlich sollte es warm sein. Zumindestens ein bisschen. Handbekleidung ...

09 Jun 2024
1 Posts

Hamburg

Fern
Cycling Hamburg Elbe

Fern

Fährt man auf der niedersächsischen Seite beispielsweise von Bleckede nach Hamburg-Harburg, bietet es sich an, an der Elbe langzufahren. Ich finde die Gegend...

17 Jun 2024
1 Posts

Health

Life Health

Nothing changed …

As if the the last few years didn’t happen? Was at the supermarket this morning. People sneezing, people coughing, nobody wears a mask, even those people who...

21 Oct 2023
7 Posts

Homelab

My content deployment process with Gitea
Linux Homelab Docker Jekyll

My content deployment process with Gitea

How I automated my multi-stage publication workflow with Gitea and Jekyll.

21 Mar 2025
Double negative
Linux Homelab TrueNAS Scale

Double negative

Who keeps my disk up? Who? Who? Who?

17 Mar 2025
Almost RAIDless
NAS Homelab Backup TrueNAS Scale

Almost RAIDless

My personal approach of protecting the data on my home NAS with replicas instead of RAID.

14 Mar 2025
Lost trust
NAS Homelab Backup

Lost trust

A dropped disk. Thoughts about trust in data persistency and the loss of this trust.

11 Mar 2025
Backup
Linux Homelab TrueNAS Scale Proxmox

Backup

About the first toughts and first steps to backup my new fileserver.

10 Mar 2025
Jekyll and Gitea
Linux Homelab Docker Jekyll

Jekyll and Gitea

How i automated the publication workflow of my Jekyll based blog with Gitea.

09 Mar 2025
New fileserver
Linux Homelab TrueNAS Scale

New fileserver

A warm welcome to tachikoma. Using a UGREEN NAsync 2800 with TrueNAS Scale and tips to get started with it.

06 Mar 2025
1 Posts

IKEA

Gadgets IKEA

Åskväder

A few days ago, I needed some distraction and thus I drove one of my sisters to IKEA. I needed a desk lamp1 anyway and thus this looked like a good idea. At ...

13 Oct 2023
17 Posts

IT

Optimierende Prokrastination
IT Personal

Optimierende Prokrastination

Prokrastination mal anders ....

25 Apr 2025
Deus ex prompt
IT Kultur AI

Deus ex prompt

Gedanken zu AI

23 Mar 2025
A WLAN tunneled
Unifi Networking IT

A WLAN tunneled

From time to time it’s quite useful to appear to be an internet user for example from the US instead of Germany. Or in the UK. Of course there are services f...

04 Jan 2025
Migrating from Ubiquiti USG to UCG
Unifi Networking IT

Migrating from Ubiquiti USG to UCG

I gave myself a christmas present this year. I’m using a Ubiquiti Unifi Security Gateway (short USG) for quite some time now and i thought it would be a good...

02 Jan 2025
IT LessonsLearned

Beware of assumed simplicity

I’m currently sitting at my desk looking to an heap of cables. Display cables. You don’t think too much about display cables. At least i did not think too mu...

13 Jan 2024
IT Gadgets

Probably just an overengineered small keyboard

(This is a test blog entry (based on a text I started a while ago) for the new Jekyll workflow) Sometimes you see a device which results in a “Must-have” re...

31 Dec 2023
Cycling LessonsLearned OnceUponATimeAServer IT

From cycling to computer systems performance – Part 1

This is my first longer blog entry after getting back to a more frequent blogging schedule. It will be a two part blog entry. It may start with cycling, howe...

03 Nov 2023
Security IT Networking

Thoughts about PoE security cameras (and outdoor ethernet cables in general)

I’m currently trying to buy a security camera, because i have the suspicion that people are using my property as a shortcut. I had just one thought: There ar...

31 Oct 2023
Unifi Networking IT

Changing Unifi inform URL via SSH

My house has four Ubiquti Unifi AP-AC-LR access points. Out of whatever reason, the construction of the house seems to attenuate WIFI signals significantly f...

29 Oct 2023
IT

Cable management

Today i was quite occupied by a search mission: As absence of a proof is not the proof of absence, I was searching for things and I had no proof to myself th...

27 Oct 2023
IT Networking

Suspiciously new

I wrote this morning that my house has currently no VDSL internet, just cable internet. I’m just back from the street in front of my home. Roughly 50m away t...

23 Oct 2023
IT Networking

Redundant

The street in front of my house gets a new cycleway on the inbound side of the street. While this is a really great idea because the old one was in an abysma...

23 Oct 2023
IT Gadgets Recommendations

Docking

I wanted to get rid of a significant set of cables when I set up my new desk, there were a gazillion of cables flying around on my desk and I wanted to bring...

22 Oct 2023
LessonsLearned OnceUponATimeAServer IT

Workarounds - revisited

The example with the heating system is a better example than I thought. I learned some additional things over the course of the day. There are workarounds, ...

19 Oct 2023
IT LessonsLearned OnceUponATimeAServer

Workarounds

Sometimes you may think that IT is the only business where workarounds are used. Today i was reminded that other businesses do the same and some even make pr...

19 Oct 2023
Gadgets IT

Keyboards

It’s roughly 20 years ago that I’ve switched to use notebooks for work. Before my time at Sun i was able to convince my manager that i really needed the Powe...

15 Oct 2023
IT SocialNetworks

Xodus

A while ago i left X (the website formerly known as Twitter). I assume out of the same set of reason why most people i know left Twitter. I really loved it...

12 Oct 2023
4 Posts

Jahresrueckblick

2024
Jahresrueckblick

2024

Über ein schwieriges Jahr 2024 und sich vor einem Rückblick drücken.

29 Dec 2024
2023
Jahresrueckblick

2023

Peter Gabriel hat dieses Jahr wieder ein Album herausgebracht. Ich hatte eigentlich schon die Hoffnung verloren, das “I/O” je herauskommen würde. Denn Herr G...

28 Dec 2023
2022
Jahresrueckblick

2022

Hier sitze ich wieder auf meinem Sofa und sinniere über das letzte Jahr. Das Fernsehprogramm ist noch schlechter als sonst. Hinzu kommt, dass am heutigen Tag...

31 Dec 2022
2021
Jahresrueckblick

2021

Ich sitze hier gerade an meinem Schreibtisch und wundere mich, das selbst in einem Jahr, in dem es eigentlich empfohlen ist, zuhause zu bleiben, es lediglic...

31 Dec 2021
2 Posts

Jekyll

My content deployment process with Gitea
Linux Homelab Docker Jekyll

My content deployment process with Gitea

How I automated my multi-stage publication workflow with Gitea and Jekyll.

21 Mar 2025
Jekyll and Gitea
Linux Homelab Docker Jekyll

Jekyll and Gitea

How i automated the publication workflow of my Jekyll based blog with Gitea.

09 Mar 2025
1 Posts

Kultur

Deus ex prompt
IT Kultur AI

Deus ex prompt

Gedanken zu AI

23 Mar 2025
4 Posts

LessonsLearned

IT LessonsLearned

Beware of assumed simplicity

I’m currently sitting at my desk looking to an heap of cables. Display cables. You don’t think too much about display cables. At least i did not think too mu...

13 Jan 2024
Cycling LessonsLearned OnceUponATimeAServer IT

From cycling to computer systems performance – Part 1

This is my first longer blog entry after getting back to a more frequent blogging schedule. It will be a two part blog entry. It may start with cycling, howe...

03 Nov 2023
LessonsLearned OnceUponATimeAServer IT

Workarounds - revisited

The example with the heating system is a better example than I thought. I learned some additional things over the course of the day. There are workarounds, ...

19 Oct 2023
IT LessonsLearned OnceUponATimeAServer

Workarounds

Sometimes you may think that IT is the only business where workarounds are used. Today i was reminded that other businesses do the same and some even make pr...

19 Oct 2023
2 Posts

Life

Life

Problems of a vegan

I’m vegan for a while. I’m not a health vegan, because it’s perfectly possible to eat totally unhealthy as a vegan. I’m the living proof. I’m not really doin...

02 Nov 2023
Life Health

Nothing changed …

As if the the last few years didn’t happen? Was at the supermarket this morning. People sneezing, people coughing, nobody wears a mask, even those people who...

21 Oct 2023
6 Posts

Linux

My content deployment process with Gitea
Linux Homelab Docker Jekyll

My content deployment process with Gitea

How I automated my multi-stage publication workflow with Gitea and Jekyll.

21 Mar 2025
Double negative
Linux Homelab TrueNAS Scale

Double negative

Who keeps my disk up? Who? Who? Who?

17 Mar 2025
Backup
Linux Homelab TrueNAS Scale Proxmox

Backup

About the first toughts and first steps to backup my new fileserver.

10 Mar 2025
Jekyll and Gitea
Linux Homelab Docker Jekyll

Jekyll and Gitea

How i automated the publication workflow of my Jekyll based blog with Gitea.

09 Mar 2025
New fileserver
Linux Homelab TrueNAS Scale

New fileserver

A warm welcome to tachikoma. Using a UGREEN NAsync 2800 with TrueNAS Scale and tips to get started with it.

06 Mar 2025
Renewing certificates - a horrible hack
Linux Administration Security

Renewing certificates - a horrible hack

Automatic renewal of Let's Encrypt certificates without an public webserver

16 Feb 2025
1 Posts

Music

Music

Age

You get vastly more aware of your own aging when you listen to live music on youtube from musicians roughly your own age and look at them changing over time....

19 Oct 2023
2 Posts

NAS

Almost RAIDless
NAS Homelab Backup TrueNAS Scale

Almost RAIDless

My personal approach of protecting the data on my home NAS with replicas instead of RAID.

14 Mar 2025
Lost trust
NAS Homelab Backup

Lost trust

A dropped disk. Thoughts about trust in data persistency and the loss of this trust.

11 Mar 2025
1 Posts

Network

Named routes
Solaris republished Admin Network

Named routes

Where the streets have no^H^Ha name.

05 Apr 2025
6 Posts

Networking

A WLAN tunneled
Unifi Networking IT

A WLAN tunneled

From time to time it’s quite useful to appear to be an internet user for example from the US instead of Germany. Or in the UK. Of course there are services f...

04 Jan 2025
Migrating from Ubiquiti USG to UCG
Unifi Networking IT

Migrating from Ubiquiti USG to UCG

I gave myself a christmas present this year. I’m using a Ubiquiti Unifi Security Gateway (short USG) for quite some time now and i thought it would be a good...

02 Jan 2025
Security IT Networking

Thoughts about PoE security cameras (and outdoor ethernet cables in general)

I’m currently trying to buy a security camera, because i have the suspicion that people are using my property as a shortcut. I had just one thought: There ar...

31 Oct 2023
Unifi Networking IT

Changing Unifi inform URL via SSH

My house has four Ubiquti Unifi AP-AC-LR access points. Out of whatever reason, the construction of the house seems to attenuate WIFI signals significantly f...

29 Oct 2023
IT Networking

Suspiciously new

I wrote this morning that my house has currently no VDSL internet, just cable internet. I’m just back from the street in front of my home. Roughly 50m away t...

23 Oct 2023
IT Networking

Redundant

The street in front of my house gets a new cycleway on the inbound side of the street. While this is a really great idea because the old one was in an abysma...

23 Oct 2023
3 Posts

OnceUponATimeAServer

Cycling LessonsLearned OnceUponATimeAServer IT

From cycling to computer systems performance – Part 1

This is my first longer blog entry after getting back to a more frequent blogging schedule. It will be a two part blog entry. It may start with cycling, howe...

03 Nov 2023
LessonsLearned OnceUponATimeAServer IT

Workarounds - revisited

The example with the heating system is a better example than I thought. I learned some additional things over the course of the day. There are workarounds, ...

19 Oct 2023
IT LessonsLearned OnceUponATimeAServer

Workarounds

Sometimes you may think that IT is the only business where workarounds are used. Today i was reminded that other businesses do the same and some even make pr...

19 Oct 2023
2 Posts

Personal

Optimierende Prokrastination
IT Personal

Optimierende Prokrastination

Prokrastination mal anders ....

25 Apr 2025
Unentdeckt
Cycling Personal

Unentdeckt

Ich beginne ja mittlerweile meine Texte gerne mit Musik, also Gedanken zu Musik. Dieser Text startet auch wieder mit einem Lied, das ich seit vielen Jahren m...

26 Jun 2024
1 Posts

Politik

Mein erstes Mal
Politik Wahlen

Mein erstes Mal

Über Bleistifte, Wahlen und meinen Erfahrungen aus einem Tag Ehrenamt als Wahlhelfer.

23 Feb 2025
1 Posts

Proxmox

Backup
Linux Homelab TrueNAS Scale Proxmox

Backup

About the first toughts and first steps to backup my new fileserver.

10 Mar 2025
2 Posts

Recommendation

Recommendation TV

Feuer&Flamme

I’m currently working on a longer blog entry about measuring systems performance, but this will take some additional days. Meanwhile i would like to point yo...

27 Oct 2023
Recommendation

Keeping my stuff together

In case you wonder about my recent uptake in blog entries and in entries about recent purchases, this is at foremost currently getting back into the writing ...

20 Oct 2023
1 Posts

Recommendations

IT Gadgets Recommendations

Docking

I wanted to get rid of a significant set of cables when I set up my new desk, there were a gazillion of cables flying around on my desk and I wanted to bring...

22 Oct 2023
1 Posts

SMF

Solaris 11.4 SRU 72: Core OS user integrity check
Solaris SMF

Solaris 11.4 SRU 72: Core OS user integrity check

Checking for changes of core OS users.

01 Apr 2025
9 Posts

Security

Using BART
Solaris republished Admin Security

Using BART

Basic audit reporting tool

26 Apr 2025
Time-based limits to SSH
Solaris republished Admin Security

Time-based limits to SSH

Lockout after midnight

23 Apr 2025
pfedit for sensitive files
Solaris Admin Security

pfedit for sensitive files

Keeping diffs out of the audit log

14 Apr 2025
Auditing pfedit
Solaris republished Admin Security

Auditing pfedit

Recording the change

14 Apr 2025
Basics of pfedit
Solaris republished Admin Security

Basics of pfedit

Delegate the edit

13 Apr 2025
Session annotations
Solaris republished Security

Session annotations

Give me a reason

10 Apr 2025
Signed binaries
Solaris republished Security

Signed binaries

Sign the name accross the binary ...

09 Apr 2025
Renewing certificates - a horrible hack
Linux Administration Security

Renewing certificates - a horrible hack

Automatic renewal of Let's Encrypt certificates without an public webserver

16 Feb 2025
Security IT Networking

Thoughts about PoE security cameras (and outdoor ethernet cables in general)

I’m currently trying to buy a security camera, because i have the suspicion that people are using my property as a shortcut. I had just one thought: There ar...

31 Oct 2023
1 Posts

SocialNetworks

IT SocialNetworks

Xodus

A while ago i left X (the website formerly known as Twitter). I assume out of the same set of reason why most people i know left Twitter. I really loved it...

12 Oct 2023
103 Posts

Solaris

pstop and prun
Solaris republished Admin

pstop and prun

Stopping and starting a process or thread

02 May 2025
svccfg editprop
Solaris republished Admin

svccfg editprop

Remembering svc properties - made easy

02 May 2025
Getting the command line and environment of running processes
Solaris republished Admin

Getting the command line and environment of running processes

Rescueing the environment.

28 Apr 2025
useradd defaults
Solaris republished Admin

useradd defaults

Changing useradd defaults

27 Apr 2025
Using BART
Solaris republished Admin Security

Using BART

Basic audit reporting tool

26 Apr 2025
Setting up NTP in Solaris 11
Solaris republished Admin

Setting up NTP in Solaris 11

A question of time

25 Apr 2025
Synchronous svcadm
Solaris republished Admin

Synchronous svcadm

Waiting for results

23 Apr 2025
Time-based limits to SSH
Solaris republished Admin Security

Time-based limits to SSH

Lockout after midnight

23 Apr 2025
ZFS File retention: No way back - and other topics
Solaris ZFS

ZFS File retention: No way back - and other topics

Things you should know about ZFS file retention

22 Apr 2025
Prevent the destruction of a ZFS filesystem dataset
Solaris ZFS

Prevent the destruction of a ZFS filesystem dataset

Limit your appetite for destruction

21 Apr 2025
ZFS file retention
Solaris ZFS

ZFS file retention

Configuring file retention in ZFS

20 Apr 2025
File auditing
Solaris republished Admin

File auditing

Activate auditing for select files

19 Apr 2025
Hashed
Solaris republished Admin

Hashed

Directly setting a hashed password

18 Apr 2025
System Attributes in your filesystem
Solaris Admin

System Attributes in your filesystem

More fun with attributes

16 Apr 2025
Protecting files from accidental deletion
Solaris republished Admin

Protecting files from accidental deletion

Additional protection against rm -rf *

16 Apr 2025
pfedit for sensitive files
Solaris Admin Security

pfedit for sensitive files

Keeping diffs out of the audit log

14 Apr 2025
Auditing pfedit
Solaris republished Admin Security

Auditing pfedit

Recording the change

14 Apr 2025
Basics of pfedit
Solaris republished Admin Security

Basics of pfedit

Delegate the edit

13 Apr 2025
Filesystem latencies
Solaris republished Admin

Filesystem latencies

From the perspective of the filesystem

12 Apr 2025
ptime
Solaris republished Admin

ptime

What have you done ... in the past?

11 Apr 2025
Session annotations
Solaris republished Security

Session annotations

Give me a reason

10 Apr 2025
Signed binaries
Solaris republished Security

Signed binaries

Sign the name accross the binary ...

09 Apr 2025
Disk latencies with iostat
Solaris republished Admin

Disk latencies with iostat

Look, no Dtrace script ...

08 Apr 2025
Scheduled scrubs
Solaris republished ZFS

Scheduled scrubs

Automatic scrubs in ZFS

07 Apr 2025
pam_fm_notify
Solaris republished Admin

pam_fm_notify

Notification about faults at login.

06 Apr 2025
Named routes
Solaris republished Admin Network

Named routes

Where the streets have no^H^Ha name.

05 Apr 2025
Post-mortem pfiles
Solaris republished Admin

Post-mortem pfiles

Finding open files in a core dump

04 Apr 2025
reflink
Solaris republished Admin

reflink

Faster copies through technology

03 Apr 2025
useradm
Solaris republished admin

useradm

New tool to manage users in Solaris 11.4

02 Apr 2025
Solaris 11.4 SRU 72: Core OS user integrity check
Solaris SMF

Solaris 11.4 SRU 72: Core OS user integrity check

Checking for changes of core OS users.

01 Apr 2025
ZFS read and write bandwith limits
Solaris republished ZFS

ZFS read and write bandwith limits

Smothering noisy neighbours.

31 Mar 2025
fileops DTrace provider
Solaris republished DTrace

fileops DTrace provider

DTracing file operations.

30 Mar 2025
Creating your own goal service in Solaris 11.4
Solaris republished

Creating your own goal service in Solaris 11.4

More goals.

29 Mar 2025
Using the goal service in Solaris 11.4
Solaris republished

Using the goal service in Solaris 11.4

Tell me about your goals.

28 Mar 2025
Sandbox without networking
Solaris republished

Sandbox without networking

Network is a privilege.

27 Mar 2025
Re-publishing
Solaris republished

Re-publishing

From the archives ...

26 Mar 2025
Solaris 11.4 SRU 75: Creating a clone in .clone
Solaris

Solaris 11.4 SRU 75: Creating a clone in .clone

Send in the clones with mkdir

26 Mar 2025
Solaris 11.4 SRU 75: Recursive mount/umount
Solaris

Solaris 11.4 SRU 75: Recursive mount/umount

(Un-)mounting (almost) everything - with a little bit more control

23 Mar 2025
Solaris 11.4 SRU 78: Wildcards for iostat
Solaris

Solaris 11.4 SRU 78: Wildcards for iostat

Filtering down the output of iostat

19 Mar 2025
Solaris 11.4 SRU 75: NFSv3 support in helper tools
Solaris

Solaris 11.4 SRU 75: NFSv3 support in helper tools

A few NFS tools in Solaris 11 still used NFSv1. This has been changed.

16 Mar 2025
Solaris 11 SRU 75: New options for pgrep/pkill
Solaris

Solaris 11 SRU 75: New options for pgrep/pkill

Two small additions to the pgrep/kill commands to limit the scope of both commands.

15 Mar 2025
Solaris 11: Network Condition Simulator
Solaris

Solaris 11: Network Condition Simulator

How to simulate bad network conditions ... up to TCP/IP over avian carriers

07 Feb 2025
Solaris 10/11: Account locking and passwordless SSH
Solaris

Solaris 10/11: Account locking and passwordless SSH

How to prevent locking for accounts used for passwordless authentication

05 Feb 2025
Solaris 11.4 SRU 60: Sample separation in iostat
Solaris

Solaris 11.4 SRU 60: Sample separation in iostat

As i had quite a fight with a larger IKEA PAX closet for my bedroom, i hadn’t quite the time to complete the ZFS retention article so far. Thus today a small...

26 Jul 2024
Solaris 11.4 SRU 66: Precision of logfile timestamps
Solaris

Solaris 11.4 SRU 66: Precision of logfile timestamps

Another rather small change that was introduces to Solaris 11 in SRU 66. Up to SRU65 the precision of the timestamps in the logfile was seconds. Jul 5 06:1...

25 Jul 2024
Solaris 11.4 SRU 57: Why did you reboot the system?
Solaris

Solaris 11.4 SRU 57: Why did you reboot the system?

Yet another small addition to Solaris 11.4. This one was released with SRU 57. reboot, shutdown and poweroff got a new option. With -c you can now specify a...

10 Jul 2024
Solaris 11.4 SRU 60: admhist shows SMF audit records
Solaris

Solaris 11.4 SRU 60: admhist shows SMF audit records

Yet another small feature. I’m working on a blog entry about ZFS retention in the evenings, but it will take some time to complete it. So a blog entry about ...

09 Jul 2024
Solaris 11.4 SRU 63: Disabling reboots (temporarily)
Solaris

Solaris 11.4 SRU 63: Disabling reboots (temporarily)

I’m not allowed to watch games of the national team of Germany. Currently Germany is playing against Spain. Friends and family have forbidden me to watch the...

05 Jul 2024
Solaris 11.4 SRU 69: Including file fragments in ssh configuration
Solaris

Solaris 11.4 SRU 69: Including file fragments in ssh configuration

While the last blog entries were about cycling, I would like to start with Solaris centric blog entries as well. My plan is to write without a planned schedu...

05 Jul 2024
Solaris

Solaris 11.4 support available until at least 2037

There is an important note in footnote 7 on page 40 of the “Oracle and Sun System Software and Operating Systems - Oracle Lifetime Support Policy”: “As a res...

25 Jan 2024
Solaris

Rest in peace, Joerg Schilling

Just saw the notification that Joerg Schilling, the creator of the cdrtools and Schillix (and many other tools), passed away this Sunday. He was one of the w...

11 Oct 2021
Solaris

Additional information for your zone configuration.

Sometimes it’s useful to enrich your zone configuration with some additional data, so someone can look into the zone config and know for example who is respo...

16 Apr 2021
Solaris

Changing passwords - re-revisited

There was an interesting question on Twitter after i published my blog entry about assigning the authorization to change passwords to regular users: “Can you...

11 Apr 2021
Solaris

Changing passwords - revisited

You are an quite busy admin. The systems are well kept. Everything is working fine. However many people work on your system and inevitably some people forget...

10 Apr 2021
Solaris

Changing passwords - revisited

You are an quite busy admin. The systems are well kept. Everything is working fine. However many people work on your system and inevitably some people forget...

10 Apr 2021
Solaris

Changing passwords

This is a blog entry from the category “Just because you can do it this way, you should not nescessarily do it this way” albeit the biggest problem with usi...

09 Apr 2021
Solaris

S11.4CS: General Administration - Packaging

Oracle Solaris 11.4 General Administration Packaging Install a package called diagnostic/wireshark: # pkg install diagnostic/wireshark Install a gr...

08 Apr 2021
Solaris

S11.4CS: General Administration - Boot Environments

Oracle Solaris 11.4 General Administration Boot Environments Boot Environments are individual bootable instances of the operating system that take advantage ...

07 Apr 2021
Solaris

S11.4CS: General Administration - Locales, timezone and keyboard

Oracle Solaris 11.4 General Administration Locales, Timezone and Keyboard Get current configuration # nlsadm get-console-keymap # nlsadm get-system-lo...

05 Apr 2021
Solaris

Solaris 11.4 Cheatsheet

Starting today i’m beginning the next part of my brain dump project. I will port the Solaris 11.3 Cheat Sheet which i wrote to some extend some years ago int...

03 Apr 2021
Solaris

Tiered storage with ZFS

This is another blog entry in regard of ZFS and about what you have to keep in mind about it, when working with ZFS. It’s nothing really astonishing, you jus...

02 Apr 2021
Solaris

vmstat without history

Historic values are sometimes quite useful to have an overview what’s happened in the past on your system, but quite often it’s only something you have to re...

01 Apr 2021
Solaris

Authorizations for Zone Console access - Part 3

Okay, there is one remaining obvious question. What if you have an admin that is responsible for all the systems and you want to give her access to all the z...

31 Mar 2021
Solaris

Authorizations for Zone Console access - Part 2

As i wrote yesterday, there is an alternate way to configure zone console access. Let’s assume we want to give the user junior the authorization to access th...

30 Mar 2021
Solaris

Authorizations for Zone Console access - Part 1

When you wanted to access the zone console on Solaris system as a normal user in the past, you needed an authorization. You may remember from a very old c0t0...

29 Mar 2021
Solaris

ptree with service names

A nice tool to get some understanding of the dependencies of processes is ptree tool. With the -c option the contract id (the contract filesystem is one of t...

27 Mar 2021
Solaris

newtask easier to use in scripts

newtask is an important tool when you start applications in a different project context, for example for resource control purposes. May be you may remember m...

26 Mar 2021
Solaris

Enterprise Health Check

(This blog entry was in the publication queue for a while, so Chris Beal overtook me with his great blog entry) For a very long time there are some security...

25 Mar 2021
Solaris

More precise timestamps for DTrace

Sometimes the timestamps delivered by %Y are not precise enough for debugging purposes. # dtrace \ -n 'syscall::read:entry {printf("%Y", walltimestamp);}'...

24 Mar 2021
Solaris

How you have grown ... sxadm

I remember i have first talked at a Solaris day in the Vienna Urania about sxadm for security extension administration. At that time we had one security exte...

23 Mar 2021
Solaris

Improved debugging in LDAP tools and nscd

Some of this improvements are not really new. They were in Solaris for years, however they were not really documented and while many people knew about them t...

22 Mar 2021
Solaris

Lock it up

This is a quite useful tool. Let’s assume you are working with colleagues on a system on their desktop. They are working on their shells as unprivileged user...

21 Mar 2021
Solaris

Just the processing please

One of the many enhancements to well known tools like truss was the introduction of the option -G to said command. When you truss for a command with -E it sh...

20 Mar 2021
Solaris

truss - just the interesting part ...

Most of the time when trussing a process you are not interested in all the system calls that are working perfectly and which are scrolling by in high speed. ...

19 Mar 2021
Solaris

Servicename in ps

Yesterday i wrote in “prstat -x” about the addition of a feature to show the FMRI of the service which the process is part of. ps got a similar enhancement. ...

18 Mar 2021
Solaris

prstat -x

When looking with processes on your system, sometimes you ask your self “Who the heck started this process? Often it’s a process started by SMF as part of a ...

17 Mar 2021
Solaris

Oracle Solaris 11.4 SRU 31

SRU 31 of Oracle Solaris 11.4 has been published today. You will find more information about the changes here.

16 Mar 2021
Solaris

fsstat

The command fsstat (somehow a command relatively unknown when talking with customers) got a slight enhancement in an Solaris 11.4 SRU. Before this enhancemen...

16 Mar 2021
Solaris

Clean up after yourself

This is a rather small change in one of the Solaris 11.4 SRUs. SMF had so far three methods. You could have a start method, which is as the name says meant t...

15 Mar 2021
Solaris

Even more new options for svcbundle

Another addition to svcbundle was the addition to set user group privileges to directly create manifests for SMF that didn’t need manual editing to ...

14 Mar 2021
Solaris

Homedirectories

Even such venerable tools like useradd could use some extra features. In a recent SRU an option was added to set a default how the home directory is created....

13 Mar 2021
Solaris

iostat and microseconds

Solaris 11.4 got a small extension to the iostat command. In a time when storage storage gets faster and faster, you may end in a sitation where the wsvc_t a...

12 Mar 2021
Solaris

gcore with less impact

This isn’t a everyday tool, however for diagnosing problems gcore is one of the important tools in your toolbox. With gcore you can create a core image of ea...

11 Mar 2021
Solaris

ps

Today i won’t write a blog entry explaining a feature. I would just like to guide your attention to an article at “Teaching an old ps command new tricks” wri...

10 Mar 2021
Solaris

Jitter and delay for svcbundle generated SMF manifests

Another extenstion to the svcbundle tool is the introduction of -s delay= and -s jitter= for periodic SMF services services. If you have something to start i...

09 Mar 2021
Solaris

svcbundle extended

svcbundle is an really useful tool to create SMF manifestes without having to hassle too much with XML. Most often you don’t have to work with XML at all , b...

08 Mar 2021
Solaris

Which SRU to get those new features?

Short anwser: The newest one you can get on the day you are reading this. The long answer: All the features i’m writing about in the last few days didn’t ap...

07 Mar 2021
Solaris

New -s option for zpool status

With SRU 30 of Solaris 11.4, the zpool command got a new option for the status command. You can now get some additional information about the devices. This b...

07 Mar 2021
Solaris

ZFS allocation units

This feature introduced in Solaris 11 SRU 30 is really an interesting one. It’s nothing you should really need often because usually ZFS will do the right th...

06 Mar 2021
Solaris

You have been warned: Upgrading rpool

In the past customers painted themself into a corner, when they did a rather large jump with their OS versions, upgraded their app as well, upgraded the zpoo...

05 Mar 2021
Solaris

Solaris scales

This is a nifty small feature . Tools like ps,df,du, ls,ps,size,prstat and swap have now the option --scale. This makes the output of those tools much more ...

04 Mar 2021
Solaris

Limits revisited

There were more limits changed in regard of open files has been changed with as well. The change took place in SRU27. rlim_fd_cur has been increased from ...

03 Mar 2021
Solaris

Small changes : New open files default.

In a relatively recent Solaris 11.4 SRU a limit was increased in it’s default setting. In 11.4 (no SRU) the limit of of open file for a user was 256. root@s...

02 Mar 2021
Solaris

Solaris 11.4 and user_reserve_hint_pct

A long time ago, i wrote about the /etc/system-parameter user_reserve_hint_pct. It limits the size of the ZFS ARC cache by proxy by essentially limiting the ...

28 Feb 2021
Solaris

Homebridge and Tasmota at my cellar

And Darmok and jalad at Tanagra. As i integrated them into Homekit via Homebridge, i had the problem with the Delock sockets with their custom firmware that...

27 Feb 2021
Solaris

vHBA and AIO

In Oracle Solaris 11.4 SRU30 there was an important change with LDOMS you should be aware of as you probably have to do an administrative step to get best pe...

26 Feb 2021
Solaris

Piped sandboxes

I got one question via Twitter: “What if there were a convenient way to run typical Unix commands in a sandbox? E.g. grep, awk, sed, etc. Could they work a...

24 Feb 2021
Solaris

Nested netgroups for fun and profit

Imagine you have several hundred systems to manage. The systems are for separate projects and each project has different teams of admins and only assigned ad...

23 Feb 2021
Solaris

Setting up LDAP for Solaris 11

Some time ago i was asked to provide a walktrough for the configuration of LDAP in Solaris 11. It’s a walkthrough how to set up LDAP name services for Solari...

22 Feb 2021
Solaris

Out of ID

Recently a customer observed on one of their systems, that the number n of databases started quite nicely on a system. However when they tried to start data...

20 Feb 2021
Solaris

Virtualbox via IPS .p5p

Darren Moffat just pointed to this in his Twitter feed about an package for Solaris that would make installation of this great tool really comfortable. Virtu...

19 Feb 2021
Solaris

IPMP and additional IP addresses

Recently i had a customer with a problem: The customer configured an IPMP group with a number of additional IPs. They had a number of application servers run...

18 Feb 2021
Solaris

Common Criteria certification for Oracle Solaris 11.4

Darren Moffat just wrote in the Solaris blog on blog.oracle.com about an important news for Oracle Solaris 11.4: Solaris just got its Common Criteria cerfica...

17 Feb 2021
1 Posts

TV

Recommendation TV

Feuer&Flamme

I’m currently working on a longer blog entry about measuring systems performance, but this will take some additional days. Meanwhile i would like to point yo...

27 Oct 2023
2 Posts

Travel

Travel

Koblenz ... again ???

I’m back from Koblenz. My brother asked me to help to fetch something from this town and as was on a weekend and i’m on vacation the obvious answer was to a...

30 Oct 2023
Travel

Strangest things

I have seen and experienced a lot of things when driving on the Autobahn through Germany. I have seen quite a few crashes, smaller and larger ones. To this d...

25 Oct 2023
4 Posts

TrueNAS Scale

Double negative
Linux Homelab TrueNAS Scale

Double negative

Who keeps my disk up? Who? Who? Who?

17 Mar 2025
Almost RAIDless
NAS Homelab Backup TrueNAS Scale

Almost RAIDless

My personal approach of protecting the data on my home NAS with replicas instead of RAID.

14 Mar 2025
Backup
Linux Homelab TrueNAS Scale Proxmox

Backup

About the first toughts and first steps to backup my new fileserver.

10 Mar 2025
New fileserver
Linux Homelab TrueNAS Scale

New fileserver

A warm welcome to tachikoma. Using a UGREEN NAsync 2800 with TrueNAS Scale and tips to get started with it.

06 Mar 2025
3 Posts

Unifi

A WLAN tunneled
Unifi Networking IT

A WLAN tunneled

From time to time it’s quite useful to appear to be an internet user for example from the US instead of Germany. Or in the UK. Of course there are services f...

04 Jan 2025
Migrating from Ubiquiti USG to UCG
Unifi Networking IT

Migrating from Ubiquiti USG to UCG

I gave myself a christmas present this year. I’m using a Ubiquiti Unifi Security Gateway (short USG) for quite some time now and i thought it would be a good...

02 Jan 2025
Unifi Networking IT

Changing Unifi inform URL via SSH

My house has four Ubiquti Unifi AP-AC-LR access points. Out of whatever reason, the construction of the house seems to attenuate WIFI signals significantly f...

29 Oct 2023
1 Posts

Vortraege

Frankfurt
Geschaeftsreise Vortraege Bahn

Frankfurt

Als die Maske fiel - ein Reisebericht über die Fahrt mit der Bahn nach Frankfurt für einen Vortrag.

23 Feb 2025
1 Posts

Wahlen

Mein erstes Mal
Politik Wahlen

Mein erstes Mal

Über Bleistifte, Wahlen und meinen Erfahrungen aus einem Tag Ehrenamt als Wahlhelfer.

23 Feb 2025
8 Posts

WestRideStories

Cycling WestRideStories

T minus 83 Tage - oder: Neuer Termin steht

Ich arbeite seit gestern wieder. Ich habe ja meinen Urlaub abgebrochen, weil ich den für den neuen Anlauf brauche. Urlaubstage sind halt eine sehr endliche R...

04 Jun 2024
Cycling WestRideStories

T minus 86 Tage - oder: Verschoben

Gestern war irgendwie ein blöder Tag. Und das schmeichelt dem Tag doch sehr. Ich schrieb in meinem letzten Artikel ja, das mein Knie gehalten hat. Nein, hat ...

01 Jun 2024
Cycling WestRideStories

Wieder T minus 2 Tage - oder: Patchen

Eigentlich wollte ich heute schon unterwegs sein. Die ersten 60 Kilometer unterwegs sein. Eigentlich. Aber ich habe eine grosse Dummheit begangen, von der ic...

30 May 2024
Cycling WestRideStories

T minus 1 Tag - oder: Von Nervösität und elektrischen Elefanten

Ich war in meinem Leben nicht wenig unterwegs. Aufgeregt bin ich trotzdem. War ich immer. Je weiter, desto aufgeregter. Morgen gehts los. Das was da morgen b...

29 May 2024
Cycling WestRideStories

T minus 2 Tage - oder: Vorbereitungen

Ich liege wieder früh wach. Es sind noch zwei Tage. Gestern habe ich es endlich geschafft, das Schutzblech ans Rad zu montieren. Ich muss an einer Stelle he...

28 May 2024
Cycling WestRideStories

T minus 3 Tage - oder: Unterhosen auf der Waage

Fahrräder - und die Teile aus denen sie bestehen - haben einen Auslegungsparameter, der sich Systemgewicht nennt. Systemgewicht heisst so viel : „Die Teile ...

27 May 2024
Cycling WestRideStories

T minus 4 Tage - oder: Schutzbleche

Schutzbleche mögen vor Wasser und Schlamm schützen, sie mögen vielleicht den Rahmen vor kleinen Steinchen schützen, die vom Reifen weggeschleudert werden. Si...

26 May 2024
Cycling WestRideStories

T minus 5 Tage - oder: In ein paar Tagen ...

Die Wiederinbetriebnahme des Workflows, um etwas in dieses Blog zu bringen, hat gleich als erstes mal wieder dazu geführt, das ich den ersten Entwurf dieses ...

25 May 2024
5 Posts

ZFS

ZFS File retention: No way back - and other topics
Solaris ZFS

ZFS File retention: No way back - and other topics

Things you should know about ZFS file retention

22 Apr 2025
Prevent the destruction of a ZFS filesystem dataset
Solaris ZFS

Prevent the destruction of a ZFS filesystem dataset

Limit your appetite for destruction

21 Apr 2025
ZFS file retention
Solaris ZFS

ZFS file retention

Configuring file retention in ZFS

20 Apr 2025
Scheduled scrubs
Solaris republished ZFS

Scheduled scrubs

Automatic scrubs in ZFS

07 Apr 2025
ZFS read and write bandwith limits
Solaris republished ZFS

ZFS read and write bandwith limits

Smothering noisy neighbours.

31 Mar 2025
1 Posts

admin

useradm
Solaris republished admin

useradm

New tool to manage users in Solaris 11.4

02 Apr 2025
5 Posts

personal

Von Holzwegen und Schiessscharten
Cycling personal

Von Holzwegen und Schiessscharten

Ich bin heute das erste mal seit längerer Zeit wieder mit Musik auf den Ohren gefahren. Ich habe eine Sonnenbrille, die gleichzeitig ein Bluetooth-Kopfhörer ...

09 Jun 2024
Durch die Göhrde
Cycling personal

Durch die Göhrde

Ich habe durch die ersten Blogeinträge hier einiges über das neue Theme gelernt. Die Bilder, die sich über die gesamte Breite des Browserfenster ziehen, woll...

09 Jun 2024
Von Beinahekatastrophen und der Freude, Glück gehabt zu haben
Cycling personal

Von Beinahekatastrophen und der Freude, Glück gehabt zu haben

Meine Gemüt will momentan einfach raus. Das Wetter ist entgegen meiner Erwartung einfach viel zu gut, um Indoor zu fahren. Auch wenn es wahrscheinlich nicht ...

07 Jun 2024
Von Erinnerungsorten und Waldwegen
Cycling personal

Von Erinnerungsorten und Waldwegen

Fenster auf, die Sonne scheint. Naja, ein kleines bisschen. Ich will raus. Liege ohnehin schon zu lange wach rum. I can get no sleep. Wie seit vielen, viele...

07 Jun 2024
Blog personal

Umbau

At first a note to my reader in English language: In the future, only blog entries about Solaris and IT in general will be in English language. Everything e...

04 Jun 2024
30 Posts

republished

pstop and prun
Solaris republished Admin

pstop and prun

Stopping and starting a process or thread

02 May 2025
svccfg editprop
Solaris republished Admin

svccfg editprop

Remembering svc properties - made easy

02 May 2025
Getting the command line and environment of running processes
Solaris republished Admin

Getting the command line and environment of running processes

Rescueing the environment.

28 Apr 2025
useradd defaults
Solaris republished Admin

useradd defaults

Changing useradd defaults

27 Apr 2025
Using BART
Solaris republished Admin Security

Using BART

Basic audit reporting tool

26 Apr 2025
Setting up NTP in Solaris 11
Solaris republished Admin

Setting up NTP in Solaris 11

A question of time

25 Apr 2025
Synchronous svcadm
Solaris republished Admin

Synchronous svcadm

Waiting for results

23 Apr 2025
Time-based limits to SSH
Solaris republished Admin Security

Time-based limits to SSH

Lockout after midnight

23 Apr 2025
File auditing
Solaris republished Admin

File auditing

Activate auditing for select files

19 Apr 2025
Hashed
Solaris republished Admin

Hashed

Directly setting a hashed password

18 Apr 2025
Protecting files from accidental deletion
Solaris republished Admin

Protecting files from accidental deletion

Additional protection against rm -rf *

16 Apr 2025
Auditing pfedit
Solaris republished Admin Security

Auditing pfedit

Recording the change

14 Apr 2025
Basics of pfedit
Solaris republished Admin Security

Basics of pfedit

Delegate the edit

13 Apr 2025
Filesystem latencies
Solaris republished Admin

Filesystem latencies

From the perspective of the filesystem

12 Apr 2025
ptime
Solaris republished Admin

ptime

What have you done ... in the past?

11 Apr 2025
Session annotations
Solaris republished Security

Session annotations

Give me a reason

10 Apr 2025
Signed binaries
Solaris republished Security

Signed binaries

Sign the name accross the binary ...

09 Apr 2025
Disk latencies with iostat
Solaris republished Admin

Disk latencies with iostat

Look, no Dtrace script ...

08 Apr 2025
Scheduled scrubs
Solaris republished ZFS

Scheduled scrubs

Automatic scrubs in ZFS

07 Apr 2025
pam_fm_notify
Solaris republished Admin

pam_fm_notify

Notification about faults at login.

06 Apr 2025
Named routes
Solaris republished Admin Network

Named routes

Where the streets have no^H^Ha name.

05 Apr 2025
Post-mortem pfiles
Solaris republished Admin

Post-mortem pfiles

Finding open files in a core dump

04 Apr 2025
reflink
Solaris republished Admin

reflink

Faster copies through technology

03 Apr 2025
useradm
Solaris republished admin

useradm

New tool to manage users in Solaris 11.4

02 Apr 2025
ZFS read and write bandwith limits
Solaris republished ZFS

ZFS read and write bandwith limits

Smothering noisy neighbours.

31 Mar 2025
fileops DTrace provider
Solaris republished DTrace

fileops DTrace provider

DTracing file operations.

30 Mar 2025
Creating your own goal service in Solaris 11.4
Solaris republished

Creating your own goal service in Solaris 11.4

More goals.

29 Mar 2025
Using the goal service in Solaris 11.4
Solaris republished

Using the goal service in Solaris 11.4

Tell me about your goals.

28 Mar 2025
Sandbox without networking
Solaris republished

Sandbox without networking

Network is a privilege.

27 Mar 2025
Re-publishing
Solaris republished

Re-publishing

From the archives ...

26 Mar 2025

c0t0d0s0.org

This is the personal blog of Joerg Moellenkamp. While i'm working for Oracle, nothing in here is endorsed or the opinion of my employer, even when i'm writing about Oracle technology.

Recent posts

pstop and prun
Solaris republished Admin

pstop and prun

02 May 2025
svccfg editprop
Solaris republished Admin

svccfg editprop

02 May 2025

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