SSH: Difference between revisions
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<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
LogLevel VERBOSE | LogLevel VERBOSE | ||
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/etc/init.d/ssh restart | /etc/init.d/ssh restart | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 00:34, 5 December 2015
Display key fingerprints informations in /var/log/auth.log
If you have multiple users connecting to a single SSH account (ie: root) and you want to identify clearly who's connecting:
Ensure this value in /etc/ssh/sshd_config:
LogLevel VERBOSE
/etc/init.d/ssh restart
Everytime a new SSH connexion is completed you could list the fingerprint used: tail -f /var/log/auth.log
To identify a fingerprint's owner by listing all entries in /root/.ssh/authorized_keys
while read l; do
[[ -n $l && ${l###} = $l ]] && ssh-keygen -l -f /dev/stdin <<<$l;
done < /root/.ssh/authorized_keys