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This article mainly shows you "how to close the firewall through the command line under the Linux", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "how to close the firewall through the command line under Linux" this article.

When you deploy a cluster in a Linux system, you must turn off the firewall.

Method of opening port 80 and port 22 in a firewall # / sbin/iptables-I INPUT-p tcp-- dport 80-j ACCEPT#/sbin/iptables-I INPUT-p tcp-- dport 22-j ACCEPT#/etc/rc.d/init.d/iptables save

After restarting the computer, the firewall has opened ports 80 and 22 by default.

Temporarily completely shut down the firewall without rebooting the machine # / etc/init.d/iptables status # # check the firewall status # / etc/init.d/iptable stop # # this time turn off the firewall # / etc/init.d/iptable restart # # restart the firewall permanently # chkconfig-level 35 iptables off # # Note that there are two British short lines in the middle; # shutdown-r now # # restart

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