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Re: OT sendmail delay



David G. Miller wrote:
Bryan Hepworth wrote:

route

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 * 255.255.255.0 U 0 0 0 eth1
169.254.0.0 * 255.255.0.0 U 0 0 0 eth1
94.0.0.0 93.0.0.100 255.0.0.0 UG 0 0 0 eth0
92.0.0.0 93.0.0.100 255.0.0.0 UG 0 0 0 eth0
93.0.0.0 * 255.0.0.0 U 0 0 0 eth0
default 192.168.2.1 0.0.0.0 UG 0 0 0 eth1

The 169.254.0.0 entry is for compatibility with a Microsoft peer-to-peer networking. It shouldn't hurt anything. The 94.0.0.0, 92.0.0.0 and 93.0.0.0 entries are probably not what you want unless the route to these subnets should still be out eth0 (the 93.1.1.208 NIC). My take on your original posting was the eth0 was no longer in use.

dig internal

; <<>> DiG 9.2.4 <<>> any internal.coxagri.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8694
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

NXDOMAIN is dig's way of saying it can't find an IP address for internal.coxagri.com. See if you can get this boxes name and IP address to resolve through dig. Sendmail likes to have it's hostname resolvable through DNS.
Cheers,
Dave

Dave

Thanks for your reply to this. When I was doing further checks I found that it was also failing reverse dns look ups. So I bit the bullet and started to learn about dns. Would you have any advice to offer as to best practice for this?

I was thinking that we need an internal dns server to keep sendmail happy with all the internal people that use it to send out email. Sendmail isn't currently taking mail in yet directly. That's taken from the box that's hosted at the ISP and brought in by fetchmail. Long term this was going to change and the MX record externally (at the ISP) was going to point to our adsl router.

Any advice would be much appreciated.

Bryan


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