>> Hongwei Li wrote: >>> Hi, >>> Sorry that I hit the Send before I finish it. >>> >>> I have a question about iptables in fc5. I have iptables 1.3.5-1.2 >>> installed. >>> By default, the iptables has a line >>> -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT >>> ... and >>> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited >>> >>> I try to add the port 2049 for our lan nfs by adding aline before the above >>> reject line: >>> >>> -A RH-Firewall-1-INPUT -s 128.252.85.0/255.255.255.0 -m state --state NEW -m >>> tcp -p tcp --dport 2049 -j ACCEPT >> >> >> That rule will only match the initial packet of the stream. You will >> also need to match states ESTABLISHED and RELATED: >> >> -A RH-Firewall-1-INPUT -s 128.252.85.0/255.255.255.0 -m state --state >> NEW,ESTABLISHED,RELATED -p tcp --dport 2049 -j ACCEPT >> >> >>> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited >>> >>> and restart iptables. But my other linux boxes cannot mount the exported >>> folder. If I stop the iptable, then they can mount it. I tried to open >>> several other ports: 137, 139, etc. But as long as the last line is there, >>> it >>> always failed. If I comment out the last line, then nfs works. >>> >>> What is "icmp-host-prohibited"? How to set it to allow some requests? It >>> seems that it is different from in fc4. Is there any link for iptables in >>> fc5 >>> where I can learn more? >>> > >I tried: > >-A RH-Firewall-1-INPUT -s 128.252.85.0/255.255.255.0 -m state --state >NEW,ESTABLISHED,RELATED -p tcp --dport 2049 -j ACCEPT >-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited > >and for other ports 137,139 etc. Still the same: as long as the last line is >there, nfs does not work. Comment it out, problem is gone. > >I will try what Arthur suggested; firestarter. But, I still want to >understand what "icmp-host-prohibited" means and where to set it. >Thanks! I think by default NFS will be using UDP not TCP. Maybe try changing '-p tcp' to '-p udp' Cheers, Terry. > >Hongwei > >-- >fedora-list mailing list >fedora-list@xxxxxxxxxx >To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list >
