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troberts
n00b
Joined: 18 Jul 2002
Posts: 5
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 Posted: Sat Jul 20, 2002 10:50 am Post subject: rpcinfo -p works |
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| I get a list of services including nfs, mountd, sgi_fam, portmapper, nlock_mgr, status. Could iptables be affecting this? |
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tux-fan
Tux's lil' helper
Joined: 10 Apr 2002
Posts: 131
Location: Paderborn, Germany
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| Posted: Sun Jul 21, 2002 7:17 pm Post subject: |
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Yes of course. The portmapper for examples uses tcp/udp port 111. Your firewall must not block that ports for your internel network but for the externel net it should do so.
For this U should add some rules to your firewall script, example:
/sbin/iptables -A INPUT -p tcp -i ppp0 --dport 111 -j DROP
/sbin/iptables -A INPUT -p udp -i ppp0 --dport 111 -j DROP
(where ppp0 is the interface to the externel world) |
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Networking & Security
