----- Original Message -----
From: "David G. Miller" <dave@xxxxxxxxxxxxx>
To: <fedora-list@xxxxxxxxxx>
Sent: Thursday, September 28, 2006 3:54 PM
Subject: Re: OT sendmail delay
Bryan Hepworth wrote:
Mogens Kjaer wrote:
Bryan Hepworth wrote:
Hi Everyone
I know this is off-topic seeing as how it's about sendmail but I was
hoping someone could help out.
I have a machine with two ethernet cards in - previously these sat on
two different networks to take email from inside and deliver it to
the
smarthost externally. Now that the network has been changed to
192.168
arrangement we don't need both ethernet connections, but I have
noticed
a distinct delay on the other ethernet card to get a connection,
sometimes over a minute.
What is the second ethernet card connected to?
I assume that you havn't connected both network cards
to the same network (this will give an answer to your problems).
What is the output of ifconfig?
Mogens
eth0 Link encap:Ethernet HWaddr 00:E0:18:F1:71:75 inet
addr:93.1.1.208 Bcast:93.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::2e0:18ff:fef1:7175/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1613 errors:0 dropped:0 overruns:1 frame:0
TX packets:1714 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 RX bytes:184622 (180.2 KiB) TX
bytes:1764140 (1.6 MiB)
Interrupt:5 Base address:0xb000
eth1 Link encap:Ethernet HWaddr 00:E0:18:F3:0E:75 inet
addr:192.168.2.4 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:18ff:fef3:e75/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2218 errors:0 dropped:0 overruns:0 frame:0
TX packets:1958 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 RX bytes:920142 (898.5 KiB) TX
bytes:251040 (245.1 KiB)
Interrupt:11 Base address:0x6000
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2325 errors:0 dropped:0 overruns:0 frame:0
TX packets:2325 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0 RX bytes:2575772 (2.4 MiB) TX
bytes:2575772 (2.4 MiB)
The next questions is, what's the output of "route"? Just a guess at this
point but sendmail may be trying to send on the NIC with the public IP or
do DNS look-ups. Either way, its going to time-out before it goes to the
192.168 NIC. You may also need to check sendmail.cf to see if it still
has references to when the box had the public IP address.
Some things to try on your sendmail box:
1) route
2) dig any <smarthost>
3) dig any `hostname`
Cheers,
Dave
Dave
Thanks for the reply...
I noticed the 169.254 addy in there, but nothing else untoward. I also ran a
network packet capture to see if I could see what was going on. Guess I've
run oot o steam for tonight. If you can spy anything let me know it's much
appreciated. The default route takes ages to come up I have to say doing the
route command.
Bryan
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
dig smarthost
; <<>> DiG 9.2.4 <<>> any smtp.nildram.co.uk
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47766
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4
;; QUESTION SECTION:
;smtp.nildram.co.uk. IN ANY
;; ANSWER SECTION:
smtp.nildram.co.uk. 225 IN A 195.149.33.74
;; AUTHORITY SECTION:
nildram.co.uk. 24789 IN NS dns0.nildram.com.
nildram.co.uk. 24789 IN NS dns1.nildram.co.uk.
nildram.co.uk. 24789 IN NS dns1.nildram.com.
nildram.co.uk. 24789 IN NS dns0.nildram.co.uk.
;; ADDITIONAL SECTION:
dns0.nildram.com. 300 IN A 193.218.99.4
dns1.nildram.co.uk. 26935 IN A 195.112.4.7
dns1.nildram.com. 300 IN A 193.218.99.3
dns0.nildram.co.uk. 24795 IN A 195.112.4.14
;; Query time: 32 msec
;; SERVER: 213.208.106.212#53(213.208.106.212)
;; WHEN: Thu Sep 28 15:50:04 2006
;; MSG SIZE rcvd: 203
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
;; QUESTION SECTION:
;internal.coxagri.com. IN ANY
;; AUTHORITY SECTION:
coxagri.com. 562 IN SOA ns4.vi.net. hostmaster.vi.net. 2006072800 43200 7200
1209600 600
;; Query time: 30 msec
;; SERVER: 213.208.106.213#53(213.208.106.213)
;; WHEN: Thu Sep 28 15:53:45 2006
;; MSG SIZE rcvd: 95
