Guides tagged “csf”
Step-by-step MdmHost guides about csf, sorted A-Z.
9 guides
Allow, deny and temporarily ban IP addresses in CSF
Use CSF commands and the WHM interface to whitelist trusted IPs, permanently deny attackers, add temporary bans and ignore IPs in LFD, with the files behind each list.
Configure DirectAdmin Brute Force Monitor and IP blocking
Set up DirectAdmin's Brute Force Monitor to detect failed logins on DirectAdmin, SSH, FTP and mail, block attackers with CSF or the firewall, and unblock IPs.
Find and unblock an IP address in WHM with CSF
Search CSF for a blocked IP, read why LFD blocked it, remove the block in WHM or SSH, and stop the same customer being blocked again.
Install and configure CSF and LFD firewall on a cPanel/WHM server
Install ConfigServer Security & Firewall (CSF) with LFD on a WHM server, set the essential csf.conf options, take it out of testing mode and manage it from WHM.
Open and close ports in CSF (TCP_IN, TCP_OUT, UDP_IN, UDP_OUT)
Edit the CSF port lists to open a port for a new service, close ports you do not use, and restrict a port such as SSH to trusted IPs on a cPanel/WHM server.
Switch from CSF to the Imunify360 firewall (root guide)
Move a cPanel server from CSF/LFD to the Imunify360 firewall as root: plan the switch, migrate allow and deny lists, open the right ports and verify nothing is locked out.
Tune LFD login failure blocking and email alerts in CSF
Adjust LFD triggers, block durations, permanent blocks and alert emails so CSF stops brute-force attacks without flooding your inbox or blocking genuine users.
What is a firewall? Network, host and web application firewalls explained
Learn what a firewall does, how network, host-based and web application firewalls (WAF) differ, and which ones protect a cPanel server, VPS or website.
Why is my IP blocked? How to find out and get unblocked
Recognise the signs of a firewall block on cPanel hosting, find your public IP, learn the usual causes such as wrong mail passwords, and get unblocked quickly.
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