Proxy and mail setup nightmare

[ekke85]

Hi

I have installed Fedora Core 5, i have setup a squid proxy that works great. I also noticed that squid does not handle pop3 and smtp. So I need to still be able to send and recieve mail trough my clients, but i do not want to setup a mail server. If anybody knows of a way i can do this and still use my ips's mail server, caould u please point me in the right direction. I had a go at send mail, postfix and exim with not a lot of sucsess. If there is a good howto that u might know of, please let me know.

 

[thedaver]

Did you even try using your mail clients?

I doubt Squid was default configured to handle all outgoing traffic. Most likely your traffic to ports 25, 110, 443, etc is unregulated by squid.

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/

 

[ekke85]

I have tried my clients on this box, they don't work. As far as squid go's, i have added port 25 & 110 as trusted ports but still nothing. I when trough some of the FAQ on the squid site and they said squid is a webapplication and not a mailling program.

 

[Annihilannic]

Can't you use NAT through iptables to do this? i.e. not proxy, but just redirect the traffic?

Annihilannic.

 

[ekke85]

i am not sure how to set that up, if you know of a nice howto i can read to make this a bit clear, i would really love to get this working

 

[WhiteVolg]

/etc/shorewall/rules should hold the key (I think Fedora is still using that)
The line

ACCEPT <internal zone> all tcp 25,110

Should allow your clients to reach the servers

 

[QatQat]

Here is a quick, very quick, almost not recommended

iptables -t nat -A POSTROUTING -0 your_external_interface -j MASQUERADE

then execute

echo "1" > /proc/sys/net/ipv4/ip_forward

then get yourself a netfilter/iptables manual as you will need to secure your server a bit more.

The lines above will redirect traffic without any control. Basically like in a windoz server environment.


Cheers

QatQat


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