Gateway down - no notification received via SMTP
-
Hmm, why? The LAN interface (still up) and the SMTP server are in the same private subnet. I even configured the static IP of the SMTP server instead of the FQDN to prevent any DNS related issues.
-
Do you have pfsense set to reset states on gateway down?
system / adv / misc
State Killing on Gateway Failure Flush all states when a gateway goes down The monitoring process will flush all states when a gateway goes down if this box is checked.Wonder if that could conflict with talking to your smtp server?
-
Nope.
-
Normally you don‘t need that. If your WAN is down, even a smtp on LAN can‘t send the mail.
-
@mrsunfire said in Gateway down - no notification received via SMTP:
Normally you don‘t need that. If your WAN is down, even a smtp on LAN can‘t send the mail.
So why is it then possible to successfully send and receive a test notification (within the LAN) with a disabled WAN interface?
-
Assuming that your email server logs never log the email attempt?
-
@chpalmer
No, the SMTP server didn't log an email attempt at the incident "Apr 27 03:45:36 kernel igb0: link state changed to DOWN". But it logged my manually triggered SMTP test notifications properly.I suspect pfsense did not try to send an email at all (bug?). What supports this suspicion is that pfsense properly logged my test notification (see below), but it did not log a notification of the "igb0: link state changed to DOWN" incident:
Apr 27 09:04:19 php-fpm /system_advanced_notifications.php: Message sent to @****. OK
-
Under System/Advanced/Notifications you're sure you did not check the first box "Disable SMTP"? Sometimes this happens because you think check a box enables something.
-
@mrsunfire
No.
-
Do you see notifications when the WAN comes back up?
Do you see gateway alarms logged when the WAN is down? If you just disable the WAN removing the gateway monitor on it I don't believe you will see an alert.
Steve
-
@stephenw10 said in Gateway down - no notification received via SMTP:
Do you see notifications when the WAN comes back up?
No.
Do you see gateway alarms logged when the WAN is down?
Yes, see my first post. The first line of the log contains the gateway alarm.
If you just disable the WAN removing the gateway monitor on it I don't believe you will see an alert.
That is clear. I just disabled the WAN manually to prove that SMTP (test) notifications can still be sent by pfsense even if the WAN adapter is down/disabled.
I suspect there might be an issue of pfsense preventing a gateway alarm to trigger the corresponding SMTP notification.
-
You don't have gateway action disabled in the gateway setup?
Though I would still expect the alarm to trigger an alert in that case. Not sure I've ever tested that though.
Steve
-
@stephenw10 said in Gateway down - no notification received via SMTP:
You don't have gateway action disabled in the gateway setup?
No. See below.
-
@stephenw10 So, where do we go from here? Should I file a bug?
-
I guess this is it :
@phaze75 said in Gateway down - no notification received via SMTP:I suspect pfsense did not try to send an email at all (bug?)
I took a look at what happens when a gateway (WAN) goes down.
I'm pretty sure that there are no mail notifications attempts in that case. -
This is kind of been a gray area for a while - I am not aware of any docs that spell out what triggers a notification.
Would be a nice if there was some doc listing what exactly will trigger a smtp notification... Better yet would be a way to toggle different notifications on or off..
Notification of wan down is prob never thought of since more than likely smtp notification would be going to outside smtp server. I just use a "free" outside monitoring service that send me email when it can not ping my wan IP..
-
@phaze75
/etc/inc/gwlb.inc - line https://github.com/pfsense/pfsense/blob/30335336358db3bcdc0ede634a4f81b7f3273c7b/src/etc/inc/gwlb.inc#L120
addnotify_all_remote("WAN went down (and when I receive this, it will be up again !)");This part of the file will now look like :
.... if (!$gateway['action_disable']) { $params .= "-C \"{$alarm_cmd}\" "; /* Command to run on alarm */ notify_all_remote("WAN went down !"); } .... Works for me ^^ I ripped out the WAN cable - counted to 35, put it back in .... The logs mentioned a mail being send - several, actually - my DynDNS's also kicked in. I received also :Notifications in this message: 1
11:22:06 WAN went down (and when I receive this, it will be up again !)
Btw : I'm not advising you to mess up your pfSense ;) @johnpoz said in [Gateway down \- no notification received via SMTP](/post/840825): > Would be a nice if there was some doc listing what exactly will trigger a smtp notification... Better yet would be a way to toggle different notifications on or off.. +1 ! -
@Gertjan said in Gateway down - no notification received via SMTP:
Btw : I'm not advising you to mess up your pfSense ;)
Fiddling around with the code/scripts will bring me exactly there. So I will refrain from leaving the standard. Thanks anyway!
-
If you just want an easy way to get notified when your wan goes offline - other than your users screaming at you ;) There are many a FREE place that will do this for you..
-
@johnpoz said in Gateway down - no notification received via SMTP:
your wan goes offline
Yeah !! Sending a mail with WAN down means : receiving the mail when WAN comes up. Rather useless.
