How to list iptables rules
To view all rules in iptables, run Or To list iptables rules without resolving IP to hostname To show the line number…
iptables
How to redirect traffic to another IP using iptables
After migrating websites to a new server, you need to point domains to the new server by changing the name server or…
Port forward using iptables
To forward all requests from port 80 to port 8080, run Here is another command that specify network interface and forward traffic…
Block an IP using iptables
To block an IP using iptables, use iptables -A INPUT -s IPADDR -j DROP Replace IPADDR with IP address you need to…
Open MySQL Port 3306 in CentOS 7
To allow MySQL to connect from remote server on CentOS 7 server, you need to enable port 3306 in firewall. To do…
Unban an IP from CSF Firewall
To unban an IP from CSF firewall, run csf -dr IP_ADDR Here i have an IP blocked in firewall. [root@server22 ~]# iptables…
iptables
How to list iptables rules Block an IP using iptables Open MySQL Port 3306 in CentOS 7 Saving iptables firewall rules Port…
iptables -F lock me out
After i type iptables -F server goes down. Can’t connect to web or ssh, seems all connection is locked by iptables. SOLUTION…