Mail Problem. DNS problem?

[pintalgi]

Hi,

i've a redhat linux 9 upadated by redhat from 7 version to 9 version. A couple of days ago i was a problem with my mail, in other words i'm not able to get any email nor to send any email. I've a proxy configuration and i tried to set iptables in order to verify the port. The 110,255 and 995 ports are opened but the mails on the client stations doesn't work. The mails works only on the server station in eth1 but it doesn't work in eth0. Therefore,i tried to verify name sever and it is incomplete, probably the automatic update raised the problem. Furthermore, i tried to pinging the host name (e.g. pop.gmail.com, domainame, ecc...) but it failed,the same thinks with the telnet command, the message was impossible to connect to the hostname or domainame.

I believe that it could be a dns problem because it could not be able to link the IP with the hosts. Someone could ask to me why the http links work, so i believe that the optenet service is able to fix this problem,but only against http links.
I tried to restart named but it refused to stop it, Could it be a named problem the cause? Can i reconfig it with bind 9?

Any idea? what do you think?

pintalgi

[Lazydog]

Are you running a dns caching server or a full dns server?

Look at the output from the following command;

service named status

If you don't see 'named is running' then issue;

service named start

[pintalgi]

thank you very much Lazydog, but I've worked the DNS problem out. I have acted as follow:

1. I've opened the 53 port on iptables

2. I've settled the DHCP script, which was static therefore it stopped the dns changing.

3. i've rewritten the named.conf because named didn't take on anything from resolv.conf, therefore the new dns in resolv was not got by named.

[Segfault]

May I say something? ... Thank you, here we go:

Please get rid of RH-9. It is an ancient distribution, it hasn't had security updates for long, long time. Using insecure operating systems poses risk to the whole internet.

[Lazydog]

May I say something? ... Thank you, here we go:

Please get rid of RH-9. It is an ancient distribution, it hasn't had security updates for long, long time. Using insecure operating systems poses risk to the whole internet.

Yes, RH9 is not worth it to run anymore because it is no longer updated.

thank you very much Lazydog, but I've worked the DNS problem out. I have acted as follow:

1. I've opened the 53 port on iptables

2. I've settled the DHCP script, which was static therefore it stopped the dns changing.

3. i've rewritten the named.conf because named didn't take on anything from resolv.conf, therefore the new dns in resolv was not got by named.

named.conf does not use resolv.conf for anything.

[pintalgi]

Yes, RH9 is not worth it to run anymore because it is no longer updated.



named.conf does not use resolv.conf for anything.

Actually, i believe the problem was the dhcp clients, because the mail was broken on the clients not on the server.

May I say something? ... Thank you, here we go:

Please get rid of RH-9. It is an ancient distribution, it hasn't had security updates for long, long time. Using insecure operating systems poses risk to the whole internet.

Yes, it's an ancient distribution, but i can't change linux distribution now. Maybe, i'll replace it with fedora, but i should take a lot of time to do it.