LFS Mail Problem?
bdubbs at swbell.net
Fri May 14 21:58:22 PDT 2004
Jeremy Utley wrote:
>Bruce, I think I would definately look at some form of a port 25 block,
>especially if you can SSH to belgarath but not access the SMTP port.
>Blocking outgoing port 25 is becoming so widespread these days, it makes
>it a pain for those of us who *LIKE* to run our own SMTP servers :)
Never attibute to malice what can be explained by stupidity.
I think its the network admins down at our school. The system has been
working fine for over a year. Now the messages are being blocked. They
have a way of changing things on Friday afternoons and not telling the
I can ssh into the server. I can ssh out of the server to lfs. I
cannot telnet out of the mail server on port 25 to anybody. The system
is in DNS as a mail server:
# dig venus.sac.accd.edu mx
; <<>> DiG 9.2.2 <<>> venus.sac.accd.edu mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63699
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; QUESTION SECTION:
;venus.sac.accd.edu. IN MX
;; ANSWER SECTION:
venus.sac.accd.edu. 4035 IN MX 30 venus.sac.accd.edu.
;; AUTHORITY SECTION:
accd.edu. 6968 IN NS ns1.swbell.net.
accd.edu. 6968 IN NS ns2.swbell.net.
;; ADDITIONAL SECTION:
venus.sac.accd.edu. 4035 IN A 126.96.36.199
ns1.swbell.net. 6713 IN A 188.8.131.52
;; Query time: 12 msec
;; SERVER: 184.108.40.206#53(220.127.116.11)
;; WHEN: Fri May 14 23:53:28 2004
;; MSG SIZE rcvd: 130
I don't think its a swbell problem. I now think district network admins
are blocking port 25 outbound. Thanks for the debug help!
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