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Linux Open Port
Время создания: 25.04.2013 22:25
Раздел: root - Linux - Distro - SL&CentOS
Запись: Yurons/mytetra/master/base/1366917933jwe0frkv7h/text.html на raw.github.com
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Redhat / CentOS / Fedora Linux Open Port
by Vivek Gite on September 13, 2007 · 38 comments· last updated at September 29, 2007
Q. I’ve Redhat Enterprise Linux 5 server with Iptabeles firewall enabled. By default it is only allowing port 22. How do I open port 80 / 143 / 110 on Linux? I've started all services but don't know how to open port using iptables.
A. By default iptables firewall stores its configuration at /etc/sysconfig/iptables file. You need to edit this file and add rules to open port number. This file only avilable under Red Hat Enterprise Linux 3 / 4 / 5 and above => Old Red hat Linux version => CentOS 4 and above => Fedora Linux Open port 80
Open flle /etc/sysconfig/iptables: # vi /etc/sysconfig/iptables
Append rule as follows: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
Save and close the file. Restart iptables: # /etc/init.d/iptables restart Open port 110
Append rule as follows: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 110 -j ACCEPT Open port 143
Append rule as follows: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 143 -j ACCEPT Restart iptables service
Type the following command: # service iptables restart Verify that port is open
Run following command: netstat -tulpn | less
Make sure iptables is allowing port 80 / 110 / 143 connections: iptables -L -n
Refer to iptables man page for more information about iptables usage and syntax: man iptables |
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