Hi all,
this thread is to add working REGEX that we can share with the community. To add them to this sticky, you should have the regex working in your server, this thread is not intended to solve any issues related with no working regex, the intention is to give users of CSF REGEXs that could make CSF with more security options.
If you want to collaborate, please add your rule to this thread...
If you have one particular IP address that is either dropped or accepted through the firewall that you think should not be, then you can use the new WATCH_MODE in csf.
Before enabling this option and using the CLI command to watch an IP address, check whether it is explicitly listed first using:
csf --grep 11.22.33.44
Where 11.22.33.44 is the IP address you're tracking. If that comes back...
If you get iptables errors when trying to start csf on a VPS then you most likely have missing iptables modules for your VPS.
If your hosting provider wants to know how to configure iptables correctly on a VPS server, then you should point them to this Parallels FAQ and have them follow it (plus to add ip_conntrack_ftp to the list of required modules):
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.
I am using cyber panel to handle my server and along with csf services to secure the server but the server is not getting to SMTP services when csf is enabled on the server, I disabled csf services and tried connecting my WordPress to SMTP services and it worked, I want to use csf services for my server because one service to secure the server, I heard good feedbacks from others...
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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