iptables block ssh

We recommend a good iptables-shell script to free you from the troublesome iptables configuration. I am not sure who the script author is, so I deleted the version declaration. system: centos5.9 script content: viiptables. sh #! /Bin/sh # -----------

The code is as follows Copy Code #!/bin/sh#------------------------------------------------------------------------------# for debugging use Iptables-v.Iptables= "/sbin/iptables"Ip6tables= "/sbin/ip6tables"Modprobe=

1. Show the status of the firewallRun the following command with root privileges: # iptables-l-n-v Parameter description: -L: Lists the rules. -V: Displays detailed information. This option displays the interface name,

Iptables official website: Alibaba IptablesHttp://netfilter.org/ Path of the data packet passing through the firewall Port prohibited Force access to a site Publish an internal network server Intelligent DNS Port ing Access through NAT Save and

For more information about IPTABLES configuration in linux-general Linux technology-Linux technology and application information, see the following. Simple Application of IPTABLES: Iptables-a input-p tcp-s 10.1.2.187-j ACCEPT Add 10.1.2.187 to the

Three tables are created: natmangle and filterfilter preset rule tables, there are three rule chains: INPUT, FORWARD, and OUTPUT. INPUT enters the FORWARD forwarding OUTPUT and goes out. ACCEPT releases the REJECT to block the packet. DROP the

Interview questions about the Linux firewall ' iptables 'Nishita Agarwal, a tecmint user, will share an interview experience with a company she has just experienced (Pune, a private company in India). She was asked many different questions during

Introduced Iptables is an IP packet filtering system integrated with the latest version 3.5 Linux kernel. If a Linux system is connected to an Internet or LAN, a server, or a proxy server that connects LAN and the Internet, the system facilitates

The instance disabling ssh port only allows remote ssh login on 192.168.62.1, and prohibit ssh # iptables-AINPUT-s192.168.62.1-ptcp from other computers? # Iptables-AINPUT-ptcp? Dport22-jDROP disable proxy port # iptables-AIN Instance with

Iptables is an important means of access control in Linux and is an important part of Linux firewall system. Here are some common operating instructions for iptables firewall rules. The following operations are based on CentOS and should be similar