Hello, Before the time, my system is Redhat 6.2...
I set the basic firewall following the script by "ipchains" : /sbin/ipchains -F /sbin/ipchains -A input -i eth0 -p tcp -d 0.0.0.0/0 53 -j DENY -l Now, my system is using Redhat 7.2... After I modify the setting of firewall by "iptables" : /sbin/iptables -F /sbin/iptables -A INPUT -i eth0 -p tcp -d 0.0.0.0/0 53 -j DROP -l The error messages : Bad argument 53.... And don't know the option "-l" ... So, can you help me ? Thank a lots. Edward. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@;redhat.com?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list