Good morning, I manage a couple of whm servers on centos 7 with imunify360 and csf, within the last couple of days the servers have become really unstable. To the best of my ability it seems like I have isolated the cause to be is LFD causing the servers to run out of memory and the way was able to prove it is the following.
A couple of days ago I was receiving e-mails from one of my servers...
It looks like my CSF configuration is on a trajectory to permanently block the entire internet.
All of these blocks have been triggered because of LF_DISTATTACK.
All of the blocks so far are from SMTPAUTH failures.
In the past 4.5 days CSF/LFD has blocked 836 LF_DISTATTACKs and entered them into csf.deny.
99+% of the blocks are with a SetID=floyd or SetID=floyd@mydomain.com.
Simple question, Can I use scripts on Debian 11, iRedmail 1.6.3 thinking, iRedmail now works with NGINX and PostgreSQL / MariaDB to manage my mail server on iRedmail?
CSF is blocking all external email (gmail, hotmail, yahoo, etc). I have seen a few discussions on this topic here but nothing specifically fixes the problem.
CSF v14.18
WHM/cPanel 110.5
External emails work fine when CSF is off. I saw one thread that mentions something about WHM v110.5 and sshd and smtp settings but the solution is not specific enough to implement.
Hello,
I am using whm with csf, csx, and i have zerotier on the server (www.zerotier.com).
From time to time, zerotier goes offline and cannot connect to its network.
To fix this, i stop csf, restart zerotier, it turns on, i turn back on csf. It works for a while.
I have two related questions if you could answer, I would be very grateful;
1) I am using Mod security as well as CSV on my Apache Centos server. I have been getting some IPV6 attacks and mod security is adding them to the mod security block just fine - but how can I manually add the offending IPV6 address into CSF? For example this one: 2a03:6f00:1::5c35:601e - when I try to add it I get...
LFD sends emails without Message-ID which causes gmail to flag ethese emails as SPAM
Refer
And with ongoing emails being generated by ldf, the spam rate originating from domain/ip goes high and eventually makes a negative impact on the reputation of the ip and domain
This is definitely a critical bug and needs to be addressed
Kindly treat this as critical to be addressed on urgent priority
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