[TriLUG] accessing mail.trilug.org, port 993
skippy1 at hickorytech.net
skippy1 at hickorytech.net
Wed Dec 29 12:03:18 EST 2004
Just to throw some more info into the mixture... heres a trace from
bellsouth.
traceproto: trace to mail.trilug.org (64.244.27.141), port 993
ttl 4: ICMP Time Exceeded from axr00asm-7-1-0-0.bellsouth.net
(65.83.237.36)
34.397 ms 34.218 ms 33.545 ms
ttl 5: ICMP Time Exceeded from pxr00asm-2-0-0.bellsouth.net (65.83.236.2)
32.269 ms 35.010 ms 34.032 ms
ttl 6: ICMP Time Exceeded from so-2-0-0.GW13.ATL5.ALTER.NET
(157.130.71.169)
33.015 ms 31.919 ms 34.593 ms
ttl 7: ICMP Time Exceeded from 0.so-4-3-0.XL1.ATL5.ALTER.NET
(152.63.84.106)
33.384 ms 32.696 ms 34.944 ms
ttl 8: ICMP Time Exceeded from 0.so-0-0-0.TL1.ATL5.ALTER.NET
(152.63.10.102)
34.351 ms 33.383 ms 32.178 ms
ttl 9: ICMP Time Exceeded from 0.so-5-0-0.TL1.DCA8.ALTER.NET (152.63.1.106)
51.144 ms 50.240 ms 49.146 ms
ttl 10: ICMP Time Exceeded from 0.so-7-0-0.CL1.RDU1.ALTER.NET (152.63.0.77)
61.561 ms 60.423 ms 59.195 ms
ttl 11: ICMP Time Exceeded from 123.ATM6-0.GW5.RDU1.ALTER.NET
(152.63.35.173)
63.313 ms 60.570 ms 59.352 ms
ttl 12: ICMP Time Exceeded from inflowdurham-gw.customer.alter.net
(157.130.40.198)
66.623 ms 63.992 ms 62.503 ms
ttl 13: ICMP Time Exceeded from 64.244.31.43 (64.244.31.43)
66.841 ms 64.095 ms 62.434 ms
ttl 14: TCP Syn Ack from moya.trilug.org (64.244.27.141)
63.751 ms 62.385 ms 61.225 ms
Alan, if you're interested the tool I used is TraceProto. It lets you
trace using a specific protocol and port.
Skippy
> AJ> Run that on both interfaces of your gateway machine and I
> AJ> suspect you'll discover that you do see the traffic on one
> AJ> interface, and then not on the other, indicating that the
> AJ> problem is with the firewall rules on the gateway in question.
>
> As I mentioned earlier, I can connect to other IMAP servers from
> home, so it's not a firewall issue. I connected to your mail server
> "bobjr" using "telnet mail.joyner.ws 993" with no problems.
>
> AJ> Another valid test would be to see if you can connect to
> AJ> port 993 on another box that you know supports connections
> AJ> on that port. You could use mail.joyner.ws as an arbitrary
> AJ> example. The purpose of that test being to demonstrate
> AJ> that your ISP (or some other upstream provider) isn't
> AJ> filtering all traffic destined to port 993 on any host.
>
> Again, I connected to your mail server on port 993 OK.
>
> AJ> Also you could try connecting to mail.trilug.org on another
> AJ> port all together, for example 25. This will help ensure that AJ>
> you're not improperly routing traffic for mail.trilug.org
> AJ> (via a bogus route, or some such).
>
> "telnet mail.trilug.org 25" hangs.
>
> My traceroute tests from home show that I can get as far as Inflow. But
> not much further.
>
> traceroute to mail.trilug.org (64.244.27.141), 30 hops max, 38 byte
> packets 1 funky (172.31.1.1) 3.605 ms 3.752 ms 3.901 ms
> 2 68.216.218.60 (68.216.218.60) 14.949 ms 13.685 ms 14.265 ms
> 3 68.216.218.1 (68.216.218.1) 14.233 ms 14.785 ms 14.831 ms
> 4 205.152.181.25 (205.152.181.25) 18.485 ms 167.297 ms 207.929 ms 5
> axr00asm-7-1-0-0.bellsouth.net (65.83.237.36) 31.964 ms 32.034 ms
> 30.962 ms
> 6 pxr00asm-0-0-0.bellsouth.net (65.83.236.0) 33.561 ms 30.582 ms
> 31.390 ms
> 7 0.so-0-0-0.GW13.ATL5.ALTER.NET (157.130.73.97) 32.525 ms 39.108 ms
> 32.580 ms
> 8 0.so-4-3-0.XL1.ATL5.ALTER.NET (152.63.84.106) 36.967 ms 32.962 ms
> 32.585 ms
> 9 0.so-0-0-0.TL1.ATL5.ALTER.NET (152.63.10.102) 32.533 ms 31.559 ms
> 31.504 ms
> 10 0.so-4-0-0.TL1.DCA6.ALTER.NET (152.63.38.61) 44.374 ms 46.778 ms
> 44.715 ms
> 11 0.so-7-0-0.CL1.RDU1.ALTER.NET (152.63.0.77) 57.948 ms 59.397 ms
> 81.987 ms
> 12 123.ATM7-0.GW5.RDU1.ALTER.NET (152.63.35.177) 62.002 ms 60.708 ms
> 62.046 ms
> 13 inflowdurham-gw.customer.alter.net (157.130.40.198) 58.059 ms
> 57.464 ms 57.959 ms
> 14 64.244.31.11 (64.244.31.11) 57.950 ms 59.136 ms 72.592 ms
> 15 * * *
> ...
>
>
> AJ> PS - looks like I made time to write up the short description. :)
>
> As always, it's very much appreciated.
>
>
> Alan
>
>
>
>
> --
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