Friday, July 2, 2021

Getting logs related to a specific user login in Ubuntu 20.04

I was having some trouble on Ubuntu 20.04 with figuring out why a Active Directory user couldn't log in to the server via SSH, and eventually came up with this, which was inspired by the link below it.

sudo journalctl | grep <<username>>



From here:

https://serverfault.com/questions/130482/how-to-check-sshd-log


All messages about sshd:

journalctl -t sshd

or

journalctl -u ssh 


Messages about sshd from the last boot:

journalctl -t sshd -b0


Messages about sshd from the last boot in the reverse order:

journalctl -t sshd -b0 -r

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