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 well known persons...

Changing passwords as a role

Of course the privilege to change other peoples password can be encapsulated into a role, so you have an additional authentication by using the role password before you get such...

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 responsible for the zone....

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 change the root password with...

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 their passwords. And...

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 using...

S11.4CS: General Administration - Packaging

Oracle Solaris 11.4 General Administration Packaging Install a package called diagnostic/wireshark: # pkg install diagnostic/wireshark Install a group package to provide a desktop environment # pkg install solaris-desktop Install package...

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 of the Oracle Solaris ZFS file system snapshot and clone...

S11.4CS: General Administration - Users and roles

Oracle Solaris 11.4 General Administration Users and Roles Revert root to a normal user account # rolemod -K type=normal root Configure root as a role (default) # usermod -K type=role...

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-locale # nlsadm get-timezone List available timezones # nlsadm list-timezone List available console...

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 into...

S11.4CS: General Administration - System Configuration

Oracle Solaris 11.4 General Administration System Configuration Common system configuration tasks have changed in Oracle Solaris 11 with the Service Mana gement Facility (SMF) configuration repository being used to store...

Tales from the bike saddle: Relatively time efficient

I’m a much better cyclist than a runner. However i often thought that spending calories by running is much more effcient than cycling. Thus i did the math to check...

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 just...

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 remove for analysis...

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...

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 the zone console...

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 c0t0d0s0.org...

Increasing ZFS pool sizes

I had this discussion with a number of customers in the past, because it’s one of the not so obvious consequences of the inner workings of ZFS, of how ZFS...

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 the features...