From: Kristopher L. <kr...@ec...> - 2002-01-24 14:33:48
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1521 Hmm.. That's the TNS listener 8.x on Oracle. It won't work. The way that Oracle works with the TNS listener, is a bit like a 2 tier system. When SQL*NET establishes a connection to the remote host at port 1521, the TNS listener will dispatch an oracle process on a random port, and then returns a string to your SQL*NET that looks something in the line of (HOST=3D<the ip of the oracle host and not the firewall> PORT=3D<the = port of the oracle host>). So, if you're on the public network (say, the internet) and your SQL*NET received the message to connect to a non-routable IP. Well, unless you have a VPN connection, you're going nowhere. My suggestion, make a vpn connection, or use Oracle connection manager for Linux (I never tried oracle connection manager, but I know it exists to bypass firewalls).=20 -----Original Message----- From: sho...@sh... [mailto:sho...@sh...] On Behalf Of Tom Eastep Sent: January 24, 2002 9:23 AM To: ste...@tw...; sho...@sh... Subject: Re: [Shorewall-users] Portforwarding didn't work On Thursday 24 January 2002 02:20 am, ste...@tw... wrote: > Hallo Tom > sorry =A0the line in the masq file is eth0 =A0 =A0 193.100.201.0/24 > and not eth1 as send in the email before. > In the nat file nothing is configured > Then your Shorewall setup appears correct, assuming that you want to forward=20 TCP ports 1521 and 1526 to system 193.100.201.111. I suggest that you look at=20 the traffic on both sides of the firewall with tcpdump or ethereal to try to=20 see what is going wrong.=20 Do you know for sure that the DB application works through NAT?=20 -Tom --=20 Tom Eastep \ A Firewall for Linux 2.4.* AIM: tmeastep \ http://www.shorewall.net ICQ: #60745924 \ te...@sh... _______________________________________________ Shorewall-users mailing list Sho...@sh... http://www.shorewall.net/mailman/listinfo/shorewall-users |