Useful System Administration tips for Ubuntu
If you've enabled full disk encryption, you will need to enter a password to unlock the disk at reboot time. If you want to be able to unlock the disk remotely via ssh, here are the steps
Host unlock
Hostname 192.168.56.101
User root
IdentityFile /Users/ksa/.ssh/id_rsa_ubuntu_unlock
StrictHostKeyChecking no
You can look at the /etc/apt/sources.list file, and in the /etc/apt/sources.list.d/ directory, but here is a single command line which can list all the sources
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