Bering-uClibc 6.x - User Guide - Basic Configuration - Email Alerts
Note, work in progress...
These examples are not using the Bering-uClibc builtin email notification found in the master configuration file
[ lrcfg... 2) system configuration... 1) Master LRP settings... ]
Email notification example using your own ISP SMTP server or Google's:
If your ISP provides you with an email account, using their SMTP server to send notification emails is the simplest method since most will only require a simple authentication username & password. Some might use TLS/SSL in which case simply use curl
otherwise you will need to get a certificate. In any case check your ISP SMTP server requirements. Last resort (joking...), if you have a Google account and certificate, you can use their SMTP server.
For the emails to get out you will have to add these rules to /etc/shorewall/rules
# pour les mails de Videotron.... SMTP(ACCEPT) fw net ACCEPT fw net tcp 587 ACCEPT fw net tcp 465
This email gets sent when the router IP address changes
The script is saved as /etc/cron.daily/mailIP
so it is executed daily at 06:42. It will check if the IP has changed.
- Using sendmail:
The code can be found in this forum, along with many other hints... https://www.snbforums.com/threads/notifications-e-mail.8190/page-8#post-267789
firewall# cat mailIP #!/bin/sh # # transmet l'adresse ip quand il change... # # IPNOW=$(ip addr | grep 255.255. | sed -n 's/^ *inet *\([.0-9]*\).*/\1/p') if grep -q $IPNOW /tmp/MyIP.log then echo "No change" else echo $IPNOW > /tmp/MyIP.log echo "Subject: l'adresse IP aujourd'hui: $IPNOW !!! " > /tmp/MyIP1.log echo "From: root@firewall" >> /tmp/MyIP1.log echo "Date: `date -R`" >> /tmp/MyIP1.log echo "" >> /tmp/MyIP1.log echo "Salut mon petit JR..." >> /tmp/MyIP1.log echo "" >> /tmp/MyIP1.log echo "nouvel IP: $IPNOW" >> /tmp/MyIP1.log echo "Uptime est: `uptime | cut -d ',' -f1 | sed 's/^.\{12\}//g'`" >> /tmp/MyIP1.log echo "" >> /tmp/MyIP1.log echo "---- " >> /tmp/MyIP1.log echo "de la part de ton gentil Routeur !!!" >> /tmp/MyIP1.log echo "" >> /tmp/MyIP1.log echo "" >> /tmp/MyIP1.log sendmail -S relais.videotron.ca:587 </tmp/MyIP1.log -froot@firewall -auxxxxxxxx -apyyyyyyyy blablabla@gmail.com fi
- Using curl: replace the sendmail stanza with this one:
curl --url smtps://smtp.videotron.ca:465 --mail-from root@firewall --mail-rcpt blablabla@gmail.com --upload-file /tmp/MyIP1.log --ssl-reqd --user xxxxxxxx:yyyyyyyy --insecure
You want to get an email every week, IP changes or not !!!
add this script to /etc/cron.weekly/mailIP_week
firewall# cat mailIP_week #!/bin/sh # # PURPOSE: e-Mail me my external IP toutes les semaines... # si ca marche bien deplace dans cron.monthly # echo "" > /tmp/MyIP.log # #
you get the picture...
- Using Google's SMTP: again replace the previous sendmail stanza with this one...
cat /tmp/MyIP1.log | sendmail -H"exec openssl s_client -quiet -CAfile /root/google-roots.pem -connect smtp.gmail.com:587 -tls1 -starttls smtp" -fblablabla@gmail.com -aublablabla@gmail.com -apyourgmailpassw blablabla@gmail.com
The certificate google-roots.pem comes from:
cd (to /root) wget https://pki.google.com/roots.pem mv roots.pem google-roots.pem
Look here for references: https://www.snbforums.com/threads/notifications-e-mail.8190/page-10#post-400586