Hey everyone. Wonder if I could get a little help here. There's so many variables to the equation, i was hoping someone might be able to point out the weak point:
We recently upgraded our mail server to a PIII 933 box with 512MB of RAM (going from a PP180 with 128MB). To do this, I installed the new system, called is mailsrv2 (original was mailsrv), copied files over, then changed its name and IP to the original mailsrv and switched the original to mailsrv2. System worked great so I took mailsrv2 (now the original) off-line. Few days later I updated the firmware on the linksys NAT router we use to give internet access to this lan segment. At the same time I changed its name from proxy to gateway. I then put the name change into our name servers. A couple of days go by, everyhting's great. Starting yesterday, connection to the mail server has a slow response, but only to clients behind the Linksys NAT router on only on certain ports. For instance, it takes about 30 seconds to get a response from POP/IMAP from behind the linksys (immediate from anything on the same segment as mailsrv) about 5 seconds for SMTP from behind the linksys (immediate from segment) and immediate for SSH/HTTP from behind the linksys. I have a feeling it has something to do with resolving DNS somehow but querying our DNS servers for both IP and DNS name works fine. I added an entry in /etc/hosts for gateway to see if that would do it, but it didn't help. If I run netstat -otp after trying to connect from behind the linksys is looks like it is getting stuck in the SYN_SENT stage waiting for a reply from the client on the auth port. Once established the is no problem. Where do I start? TIA, Jeff Graves Customer Support Engineer Image Source, Inc. 10 Mill Street Bellingham, MA 02019 508.966.5200 X31 - Phone 508.966.5170 - Fax [EMAIL PROTECTED] - Email _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
