When linux firewall opens a port, ptables-restore: line 13 failed [failed]

linux open port 8080

Add a line in /etc/sysconfig/iptables [-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT]

Then service iptables restart, the following problem is reported

Solution:

Cause of the problem: Not familiar with Linux firewall related configuration;

Reference link:

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