Linux firewall command to disable IP addresses

Linux firewall prohibit IP commands linux Utility iptables block ip address some common commands: block a single IP address command is: iptables-IINPUT-s211.1.0.0-jDROP block IP address block command is: iptables-IINPUT-s211.1.0.0/16-jDROPiptables -... linux firewall command for disabling IP address some common commands for using iptables to block ip segments in linux: the command for blocking a single IP address is: the command for iptables-I INPUT-s 211.1.0.0-j DROP an IP segment is: iptables-I input-s 211.1.0.0/16-j DROP iptables-I input-s 211.2.0.0/16-j DROP iptables-I INPUT-s 211.3.0.0/16-j DROP command: iptables-I INPUT-s 2 The command for 11.0.0.0/8-j DROP several segments is: iptables-I input-s 61.37.80.0/24-j DROP iptables-I INPUT-s 61.37.81.0/24-j DROP: 1. add it to/etc/rc. local 2. iptables-save>;/etc/sysconfig/iptables can put your current iptables rules in/etc/sysconfig/iptables. The system will automatically execute iptables when the system starts iptables. 3. service iptables save can also put your current iptables rules in/etc/sysconfig/iptables. The system automatically runs iptables when it starts. The last two are better. Generally, the iptables service is enabled before the network service, which is safer. Unseal: iptables-d input-s IP address-j REJECT iptables-F clear all python, go, redis, mongodb,. net, C #, F #, server architecture