Noob ubuntu user here, I want to send an email on succesfull ssh login on my Ubuntu 20.04.5 LTS machine, I got the idea from this other thread:
How do I set up an email alert when a ssh login is successful?
I edited /etc/pam.d/sshd file and added the last line
/etc/pam.d/sshd
session optional pam_keyinit.so force revoke
session optional pam_exec.so seteuid /usr/local/bin/sendmail.sh
And my sendmail script (changed key and mail for privacy reasons):
/usr/local/bin/sendmail.sh
#!/bin/bash
##This script sends a message
if [ "$PAM_TYPE" != "close_session" ]; then
host="'ubuntu-server'"
subject="SSH Login: $PAM_USER from $PAM_RHOST on $host"
curl -s --user 'api:key-xxxxxxxxxxxxxxxxxxxxxxxx' https://api.eu.mailgun.net/v3/mydomain.com/messages -F from='Server Notification <postmaster@mydomain.com>' -F to='mymail@gmail.com' -F subject="$subject" -F text='Detected succesfull SSH login'
fi
exit 0;
Is there something I missed? do I have to restart pam or something?
Where can I see error logs if they exist?
