On Tue, Jan 30, 2018 at 12:26 PM, m.roth@5-cent.us wrote:
This is.... odd.
We're seeing a *lot* of sshd[8400]: Timeout, client not responding. So I'm trying to find out whose client is having issues. Trying to figure that, after processes are gone, I tried looking in lastlog, which is where it gets odd. lastlog shows root coming in, and it shows a security account coming in... years ago.
I see one of our users logging in a goodly number of times... but lastlog doesn't show him. I just logged in as myself, no password, using keys... and lastlog doesn't show me, or my manager, or anyone else.
Does anyone have any idea why lastlog's not recording *all* logins?
You can look at /var/log/audit/audit.log to see more detail than what last shows. A nice tip is to pipe the output through another tool to convert the timestamps to human readable date and time.
tail -f /var/log/audit/audit.log | ausearch -i or tail -f /var/log/audit/audit.log | perl -pe 's/(\d+)/localtime($1)/e'
via https://serverfault.com/questions/327846/convert-selinux-log-date-format-fro...