iptables block outgoing traffic

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. view the settings of iptables on the local machine. [[Email protected] ~] # Iptables-l-N Chain input (Policy accept) Target prot opt source destination Chain forward (Policy accept) Target prot opt source destination Chain output (Policy

The method for starting and stopping iptables depends on the Linux release version in use. you can view the documentation of the Linux version in use. In RedHat, start iptables with: # serviceiptablesstart. generally, iptables is already included in

Iptables usage instructions, iptables usageI. Preface The firewall is actually used to implement access control in Linux. It can be divided into two types: hardware or software firewalls. In any network, the firewall must work on the edge of the

The default script only enables port 80, 3306, and port 22 of the conventional web server # videfault_firewall.sh #! /Bin/bash #################################### ####################################### File: the default default_firewall.sh script

The default script only enables ports 80, and 22 of the conventional web server.  # Vi default_firewall.sh #! /Bin/bash######################################## ################################### File: default_firewall.sh# Description:# Language:

# 1. Delete all existing rules Iptables-f # 2. Set the default chain policy Iptables-p INPUT DROP Iptables-p FORWARD DROP Iptables-p OUTPUT DROP # 3. Block a specific IP address #BLOCK_THIS_IP = "x.x.x.x"

I. preface the firewall is actually used to implement access control in Linux. it can be divided into two types: hardware or software firewalls. In any network, the firewall must work on the edge of a network. Our task is to define how the firewall

Transparent firewall (bridge + iptables + squid)-Linux Enterprise Application-Linux server application information. For more information, see the following. Setting up transparent proxy and firewall is a hot topic on the linux platform. There are