IP Block can be of 2 kinds..,temporary block and permanent block.
# cat /etc/csf/csf.deny | grep <IP>
# iptables -nL | grep <IP>
If the IP is blocked in server, the above commands will list the IP block rules of that particular IP.
**If the block is temporary, do the following to remove block.
# csf -tr <IP>
**If the block is permanent, do the following to remove block.
# csf -dr <IP>
Note1:- If the command csf is not working, you have to search for the command using whereis command.
# whereis csf
The above command will list the csf executable file.
eg:-
# /usr/sbin/csf -dr <IP>
Note2:- You can check the reason of IP block in /var/log/lfd.log. Use the following command
# cat /var/log/lfd.log | grep <IP>
# cat /etc/csf/csf.deny | grep <IP>
# iptables -nL | grep <IP>
If the IP is blocked in server, the above commands will list the IP block rules of that particular IP.
**If the block is temporary, do the following to remove block.
# csf -tr <IP>
**If the block is permanent, do the following to remove block.
# csf -dr <IP>
Note1:- If the command csf is not working, you have to search for the command using whereis command.
# whereis csf
The above command will list the csf executable file.
eg:-
# /usr/sbin/csf -dr <IP>
Note2:- You can check the reason of IP block in /var/log/lfd.log. Use the following command
# cat /var/log/lfd.log | grep <IP>