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Linux Firewall opens specific ports

2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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Shulou(Shulou.com)06/02 Report--

Law 1:

View status:

Iptables-L-n:

Use iptables to open the following ports

/ sbin/iptables-I INPUT-p tcp-- dport 8000-j ACCEPT

Save

/ etc/rc.d/init.d/iptables save

Restart the service

Service iptables restart

Check to see if the port that needs to be opened is valid?

/ etc/init.d/iptables status

Law 2:

Direct Editing / etc/sysconfig/iptables

-An INPUT-p tcp-m tcp-- dport 4000-j ACCEPT

Save and restart:

Service iptables restart

The above 8000GMT 4000 can be replaced with any port number that is not occupied

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