Send an email when the gateway falls
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The work of 2 providers is configured, I would like to receive an e-mail in case of problems with one of them. For example, if the gateway is offline for more than 5 minutes, send an email. Now we are trying to configure this through a script that reads gateways.log through cron, a problem with sending out for lack of sendmail.
PfSense is installed on several servers and we would not like to have files that will not be included in the backup. -
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PfSense is installed on several servers and we would not like to have files that will not be included in the backup.Then no, pfSense has no such facility on-board.
Special demands need special code (lines) ;)But, I do receive a mail when my pfSense becomes unreachable - and even with just ONE ( 1 !) WAN interface.
I check from the outside ;) https://www.test-domaine.fr/munin/brit-hotel-fumel.net/pfsense.brit-hotel-fumel.net/index.html
Munin dials in every 5 minutes for chart updates, and when it times out, he will call Houston (that's me). -
I use UptimeRobot for this. It's free.
https://uptimerobot.com/
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What if both your gateways are down? How do you get the email ;)
As mentioned easier and more reliable to test from outside or some sort of out of band system. I use domotz and multiple outside monitors.. If my connection goes down I hear about it on my phone via app push, via sms via email, etc.
No reason to re-invent the wheel for this sort of monitoring.
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From the outside, you will not be able to watch due to the fact that not all external interfaces have a permanent IP, and some are behind NAT.
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For public IP addresses, use dynamic DNS with a static hostname then… the router will update the hostname with the correct IP address if/when it changes.
Not sure of a way to handle it if your carrier is using NAT. Maybe see if they have IPv6 available also, and use that instead as your down-detector?
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Are you not using gateway groups? It's a standard pfSense notification whenever a gateway in a gateway group goes up or down:
TMOBILE_DHCP is down, omitting from routing group FIOS_to_TMOBILE
8.8.8.8|192.168.0.254|TMOBILE_DHCP|982.895ms|1995.669ms|0.0%|down
