The solution of non-response in service iptables start

[root@lt ~] # service iptables start

[root@lt ~] # service iptables status

The firewall has been stopped

Solution:

Initialize iptables.

Iptables-F

Service iptables save

Service iptables restart

Vi / etc/sysconfig/iptables

Second, just add the preset iptables rules:

# Firewall configuration written by system-config-securitylevel

# Manual customization of this file is not recommended.

* filter

: INPUT ACCEPT [0:0]

: FORWARD ACCEPT [0:0]

: OUTPUT ACCEPT [0:0]

: RH-Firewall-1-INPUT-[0:0]

-An INPUT-j RH-Firewall-1-INPUT

-A FORWARD-j RH-Firewall-1-INPUT

-A RH-Firewall-1-INPUT-I lo-j ACCEPT

-A RH-Firewall-1-INPUT-p icmp--icmp-type any-j ACCEPT

-A RH-Firewall-1-INPUT-p 50-j ACCEPT

-A RH-Firewall-1-INPUT-p 51-j ACCEPT

-A RH-Firewall-1-INPUT-p udp-- dport 5353-d 224.0.0.251-j ACCEPT

-A RH-Firewall-1-INPUT-p udp-m udp-- dport 631-j ACCEPT

-A RH-Firewall-1-INPUT-p tcp-m tcp-- dport 631-j ACCEPT

-A RH-Firewall-1-INPUT-m state-- state ESTABLISHED,RELATED-j ACCEPT

-A RH-Firewall-1-INPUT-m state-- state NEW-m tcp-p tcp-- dport 22-j ACCEPT

-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 443-j ACCEPT

-A RH-Firewall-1-INPUT-j REJECT-- reject-with icmp-host-prohibited

COMMIT

And save it.