On Wed, 2003-08-13 at 08:21, John Szkudlapski wrote: > Hi All > > Having a problem with INTERNAL mail here and I was wondering if anyone > could shed some light onto the problem. > > Having just upgraded our 2 linux proxy servers from RHL7.3 to RHL9 it > has just become apparent that internal mail (clients using Outlook) are > taking upto 3 minutes to connect to our mail server (Solaris 9 - running > sendmail). > > Our two proxy servers are configured in the following way > > Proxy 1 > Public IP = > Internal 1 = 192.168.1.1 > Internal 2 = 192.168.4.1 > > Proxy 2 > Public IP = > Internal Card 1 = 192.168.2.1 > Internal Card 2 = 192.168.3.1 > > Both running > Red Hat Linux 9, > Squid > Dansguardian > sendmail (for the admin accounts on the machine - no clients) > bind-9.2.1(Caching Only Nameserver) > > With our mail server (mailhost.bsfc.ac.uk) having 4 internal IP numbers > in addition to its public IP address. > > 192.168.1.252 > 192.168.2.252 > 192.168.3.252 > 192.168.4.252 > > If I give a workstatino a public IP address and bypass our proxy > server(s) I connect almost instantaneous, the same goes for any internal > user who uses our WebBased E-Mail (horde) which is located on our mail > server (external). Which leads me to believe the problem lies with > squid/dns/sendmail on the proxy servers. > > Our mail server does not have any problems with IMAP or POP3 and works > perfectly. I tested this by putting in a dummy server running RHL7.3 in > place of our main mail server to eliminate our mail server - no change. > > Could it be an internal DNS isssue, we don't actually have our own DNS > server here (the two proxys are configured to use caching-only), and are > set to look at our main DNS (hosted by www.ja.net). I will be putting in > our own DNS once I get time. >
yes DNS is very likley to be the culprit try adding the internal ip/name combinations to the /etc/hosts file on the servers first and then try a workstation or two. to see where the problem lies. Server stuff should help the webmail immediately. Bret -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
