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reboot fixes “pam_systemd(sshd:session): Failed to create session: Connection...
In case I get something similar to this again: Mar 11 12:54:06 filesrepo sshd[22021]: Accepted publickey for SOMEUSER from xxx.xxx.xxx.xxx port xxxxx ssh2: RSA...
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Research notes on Diffie Hellman over WebSockets over a MittM http proxy to...
Inspired by CloudFlare Keyless SSL, I have this idea of using Diffie Hellman over WebSockets over a MittM based http proxy (which intercepts and decrypts HTTPS traffic) like mitmproxy (but them from a...
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Hmm, need to check why MariaDB got installed
The zypper dup has installed MariaDB; now I need to figure out which dependency did this, as I’m not happy with the update message: Message from package mariadb: You just installed MySQL server for the...
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Zypper or YaST locked: System management is locked by the application with...
A while ago, I got this error: Accessing the Software Management Failed System management is locked by the application with pid 17730 (/usr/lib/YaST2/bin/y2base). Close this application before trying...
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The Power of Open Source… Microsoft .NET and OpenShift: .Net on Linux
Really exiting times ahead: Microsoft .Net on Linux. It’s not fully ready yet, but to get an idea to learn more about running OpenShift Enterprise 3 and a .NET application based on a Red Hat Enterprise...
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Reminder to self: verify which temporary directories really need cleanup...
Message from package aaa_base: sysconfig settings for cleaning up temporary directories are no longer supported. Some of the features are provided by systemd's tmpfile mechanism instead. Please refer...
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Recommended read: What I learned while securing Ubuntu – major.io
Applying security hardening standards and generally securing Ubuntu has been a challenge. Tell me about it (: –jeroen Source: What I learned while securing Ubuntu – major.ioFiled under: *nix,...
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/etc/netconfig conflict
Hmm: Detected 1 file conflict: File /etc/netconfig from install of libtirpc3-1.0.1-1.1.x86_64 (Main Repository (OSS)) conflicts with file from install of libtirpc1-0.2.5-1.1.x86_64...
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Getting your public IP address from the command-line
Many sites giving your public IP address return a web page with a bloat of html. From the command-line, you are usually only interested in the IP-address itself. Few services return exactly that. Below...
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dig show only the answer section: specify both +noall and +answer – via:...
The solution: add both the +noall and +answer flags before the query. dig +noall +answer google.de –jeroen via dig show only answer – Server Fault.Filed under: *nix, *nix-tools, Apple, Linux, Mac, OS...
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Mosh: the mobile shell
Reminder: install mosh and get it working when it runs behind a firewall. Mobile shell that supports roaming and intelligent local echo. Like SSH secure shell, but allows mobility and more responsive...
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Getting the ESXi version from the console
Since ESXi is based on busybox, it is using ash a variation of sh (the classic bourne shell) called Almquist shell and most nxes use some form of bash a lot of things won’t work. For instance, doesn’t...
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Upgrading from OpenSuSE 13.1 to 13.2
As etckeeper wasn’t available in the “normal” OpeenSuSE 13.1 package, I used the steps below to upgrade to 13.2 after reading SDB:System upgrade – openSUSE and How To Upgrade To openSUSE 13.2 From...
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DVCS for your Linux etc configuration
Manually you can do it like this: How To Use Git to Manage your User Configuration Files on a Linux VPS | DigitalOcean. But there is also etckeeper. There is even a set of manual installation steps for...
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Latest Tumbleweed distribution update likely kills sshd
After a recent big update to OpenSuSE Tumbleweed, I could not ssh into my system any more. Symptoms The ssh client side would report a Read from socket failed: Connection reset by peer which I...
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Nice diskinfo alias showing du, df, btrfs, parted, lsblk
I bumped into a disk full issue again because of the btrfs/snapper combination in openSuSE and df basically lying about the disk space, so Iw rote this Nice diskinfo alias showing du, df, btrfs,...
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domain name system – How to test DNS glue record? – Server Fault
Thanks Adrian W for providing the below example in your answer about obtaining GLUE record information for a domain. It is an excellent showcase for the $IFS Internal Field Separator available in any...
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Keeping openSuSE Tumbleweed rolling release up to date
openSuSE provides a rolling release called tumbleweed. Given the very different nature, traditional means of updating don’t work (I added some links to the text): You should use “zypper dup” to keep...
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bash – How do I find all of the symlinks in a directory tree? – Stack Overflow
I needed to find the symlinks in /etc pointing to directories and know both the name and place they point to. revue:~ # ls -al `find -L /etc/ -xtype l -type d` find: ‘/etc/ssh/broken/ssh_host_dsa_key’:...
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TUMBLEWEED: local console yast linedrawing characters garbage after first reboot
I long while after asking TUMBLEWEED: local console yast linedrawing characters garbage after first reboot, I researched the issue further. First the workaround: It is enough if any user on any console...
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