Subj : Re: pfsense port forwarding...
To   : Martin Kazmaier
From : Karel Kral
Date : Thu Dec 26 2024 07:59 am

Hello Martin!

25 Dec 24 21:35, you wrote to All:

MK> not using the domain.  I'm behind a VPN, so it's not hairpinning.  All
MK> of the rest of my port forwarding rules work fine (I've got about 20
MK> of them), except for these 3 and maybe one or 2 others.  I can't see
MK> anything consistently wrong with them or the rules. Does anyone have
MK> any ideas?

I most probably do not have answer for you. Just ideas, as you asked:

1) is it DNS translation issue? (as you wrote direct IP is working, host name not?)
2) is it wrong port combination? (as obviously some of them are "protected")
3) is it networking problem behind Internet connection provider?
4) is it OS related issue (selinux or similar)
5) is it HW related issue (like you wrote about low memory)

I would go:
a) try it without firewall for the short moment
b) to change port numbers - to free/higher numbers (these sources for forwarding)
c) check how DNS translation is working on each step (is it somehow 127.0.0.1/localhost used?)
d) check dmesg for any specific (low) memory errors (buy memory or at least extend swap setup)

Karel

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