Linuxiptables is accessible only on ports 22 and 80.

Linuxiptables is set to 22 and 80 ports only. you can run the netstat-tnl command to check which ports are opened on the server. The Ssh code netstat-tnl is used to view the Ssh code iptables-L-n enabled for the firewall. 22, port 80 Ssh code iptables-... linux iptables is set to 22 and 80 ports only. you can run the netstat-tnl command to check which ports are opened on the current server. The Ssh code netstat-tnl is used to view the firewall setting Ssh code iptables-L-n open 22. port 80 Ssh code iptables-a input-p tcp -- dport 22-j ACCEPT iptables-a output-p tcp -- sport 22-j ACCEPT iptables-a input-p tcp -- dport 80-m state -- state NEW, ESTABLISHED-j ACCEPT iptables-a output-p tcp -- sport 80-m state -- state NEW, ESTABLISHED-j ACCEPT cancel access rules for other ports Ssh code iptables-p input drop iptables-p forward drop iptables-p output drop allow local loopback interface (that is, allow local access to the local machine) ssh code iptables-a input-s 127.0.0.1-d 127.0.0.1-j ACCEPT allows established or related connections (such as database links) ssh code iptables-a input-m state -- state ESTABLISHED, RELATED-j ACCEPT allows all local machines to access the Ssh code iptables-a output-j ACCEPT to save the configuration: Ssh Code service iptables save