iptables: Applying firewall rules: iptables-restore: line 17 failed

iptables: Applying firewall rules: iptables-restore: line 17 failed
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If an error like iptables: Applying firewall rules: iptables-restore: line 17 failed appears when the firewall is started, there should be a problem with the configuration file.

Please save a configuration file first, or record the firewall rules. Then use the command to initialize the configuration file:

# iptables-save > /etc/sysconfig/iptables

This general firewall configuration file will appear in the initial state.

Then restart the firewall and execute the add rule command:

#iptables -I INPUT -p tcp –dport 22 -j ACCEPT

#iptables -I INPUT -p tcp –dport 80 -j ACCEPT

and so on. Again:

# iptables-save > /etc/sysconfig/iptables

The newly added rules are also written into the configuration file. Restart to see. Well you can get up.