vi and vim are two out of many text editors on Unix, this is my .vimrc. I put this here mostly so I can easily grab it.
.vimrc
Category: linux
Fun With /etc/cron.*
If you are reading this you probably know what /etc/cron.hourly/ , /etc/cron.daily/ and so on does. What you might not know is that on CentOS, RHEL, Fedora you can name a script living in these […]
sssd.conf – case sensitivity
Secure System Service Daemon or SSSD is used to setup authentication on various Linux distributions. You can also use it to define how to interact with Active Directory. It has a configuration line which will […]
Capture IP From PING
This is just a simple sed to capture IP address from ping. Note host must allow ICMP. This was tested on sh, bash and zsh. An example:
Docker Won’t Start After Update
I updated docker on CentOS 8 from docker-ce-3:19.03.13-3.el8.x86_64 to docker-ce-3:20.10.1-3.el8.x86_64 and failed to start after update. Oh no, now what? 🙂 Let’s see more details: Turned out the fix was to remove trusted.xml, or better […]
yum history
On RHEL/CentOS, yum history is not well-known but is a nice way to undo package installs, including dependencies, or updates. Usage is self-explanatory. I provided some examples below: If you really want you can undo […]
CFengine
DNS Blacklist on WRT
Recently I found a forum entry with a script for blocking ad’s via DNS for WRT (or any other OS using sh and dnsmasq). However it was missing two features: a white list and a […]
Easy SSH On macOS
Using public key authentication for ssh is safer than password. But you should really use a passphrase protected private key. Now you are safe but you still need to type in your passphrase. This isn’t […]
Easy bond Interface
If you ever set up a bond interface on Linux you know it takes a few file editing. I got tired of doing this, please find my script below creating a bond interface. This is […]