A Practical Method for viewing firewall processes in Linux
Source: Internet
Author: User
Article Title: A Practical Method for viewing firewall processes in Linux. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic categories to start the Firewall
1) takes effect after restart
Enable: chkconfig iptables on
Close: chkconfig iptables off
2) takes effect immediately and becomes invalid after restart
Enable: service iptables start
Disable: service iptables stop
You can use the preceding command to enable or disable other services in Linux.
When the firewall is enabled, make the following settings to enable the relevant ports.
Modify the/etc/sysconfig/iptables file and add the following content:
-A RH-Firewall-1-INPUT-m state -- state NEW-m tcp-p tcp -- dport 80-j ACCEPT
-A RH-Firewall-1-INPUT-m state -- state NEW-m tcp-p tcp -- dport 22-j ACCEPT
View all processes, including services. In the command, ps-aux is netconfig, which is the NIC Configuration tool on the Character interface in redhat.
Chkconfig -- list
You can list the default startup statuses of sysV and xinet services at each runlevel.
Service name Parameters
The parameter for viewing the status seems to be stat.
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