Oinam's Notebook

Tit-bit, wiki-ish, data, learnings, and observations.

Linux

Linux is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds.

Common Operations

Current OS Release version
cat /etc/*release

Change Hostname
https://phoenixnap.com/kb/ubuntu-20-04-change-hostname

Ubuntu apt-get complains about unverifiable public key signature
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <KEY>

Change SSH Key Password
ssh-keygen -p -f <keyfile> e.g. ssh-keygen -p -f ~/.ssh/id_rsa

References