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Max Isom 2016-09-16 14:06:17 -05:00 committed by GitHub
parent 0720ffafb9
commit 8a302ee8d8
1 changed files with 6 additions and 5 deletions

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@ -1,21 +1,22 @@
#!/bin/bash #!/bin/bash
# Create a script to be called when a user logs in
cat << 'EOF' > /etc/ssh/login-alert.sh cat << 'EOF' > /etc/ssh/login-alert.sh
#!/bin/bash #!/bin/bash
source /etc/mailinabox.conf # load global vars source /etc/mailinabox.conf # load global vars
if [ "$PAM_TYPE" != "close_session" ]; then if [ "$PAM_TYPE" != "close_session" ]; then
IP=$(echo $SSH_CONNECTION | cut -d ' ' -f 1) # send alert
sendEmail -q -f "bot@$PRIMARY_HOSTNAME" -t "admin@$PRIMARY_HOSTNAME" -u "SSH Login: $PAM_USER from $PAM_RHOST" -m "If you don't recognize this login, your key or password may be compromised." sendEmail -q -f "bot@$PRIMARY_HOSTNAME" -t "admin@$PRIMARY_HOSTNAME" -u "SSH Login: $PAM_USER from $PAM_RHOST" -m "If you don't recognize this login, your key or password may be compromised."
fi fi
EOF EOF
chmod +x /etc/ssh/login-alert.sh chmod +x /etc/ssh/login-alert.sh # make script executable
if grep -Fq "login-alert" /etc/pam.d/sshd if grep -Fq "login-alert" /etc/pam.d/sshd # if line has already been added to sshd
then then
: : # do nothing
else else
echo 'session optional pam_exec.so seteuid /etc/ssh/login-alert.sh' >> /etc/pam.d/sshd echo 'session optional pam_exec.so seteuid /etc/ssh/login-alert.sh' >> /etc/pam.d/sshd # otherwise add the line
fi fi