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defkewl
Tux's lil' helper
Joined: 08 Feb 2005
Posts: 75
Location: Indonesia
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 Posted: Thu Jun 16, 2005 3:41 am Post subject: Can't connect to ISP mail server & Yahoo Messenger |
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Hi guys,
I can't connect to my ISP mail server using mail client (ThunderBird) and Yahoo Messenger but I can connect to www.
- I use iptables for routing and squid for proxy.
- I'm using Gentoo kernel 2.6.11-r9
When I use 2.4.26-gentoo-r3 it worked flawlessly.
These are my iptables rules:
| Code: | /sbin/iptables -t nat -A POSTROUTING -j eth0 MASQUERADE
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And my squid http_access:
| Code: | acl our_networks src 192.168.0.1-192.168.0.255/255.255.255.255
http_access allow our_networks
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Anybody could give me some clue to this matter?
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theDreamer
Tux's lil' helper
Joined: 20 Oct 2003
Posts: 118
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| Posted: Thu Jun 16, 2005 7:52 am Post subject: |
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Small debugging tip:
Load the problematic application and run netstat at the same time.
afterwards try to perform telnet to the ip & port of the server and see if you can reach it.
if you can it's an application problem otherwise it's a platform issue.
i suggestion after you have the ip & port, play with iptables configuration (start with disabled configuration and see it's working), and add rules until you recreate the problem.
hope it helps.
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Nir Dremer
www.dremer.org |
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Networking & Security
