what happened to everyone?
Glenn Crocker
glenn at netmud.com
Tue Mar 6 18:03:31 CST 2001
> 1. My 3com 3c905b (vortex) isn't coming up in 100MB mode.
Sorry, no clue on that one.
> 2. My mail server doesn't seem to be getting mail from Yahoo or AOL
> (possibly others). All mail sent from these servers gets returned. The
> domain is registered through Network Solutions and has been for some time
> (several months). How do I make these people recognize my
> address? A simple
> lookup reveals the address of the website, and the name servers. Querying
> the name servers returns the mail server address? What gives?
Check /var/log/messages and whatnot and see if the mail server is getting
contacted but rebuffing Yahoo's advances like a cocky silicon valley startup
drunk on VC.
I see this kind of black-hole behavior a lot when DNS has gotten screwy. If
you had your domain parked someplace previously, you may need to tell them
to stop being authoritative for the domain. A little time with 'dig' and a
list of IPs that have ever been nameservers for your domain might do the
trick. ('dig @123.123.123.123 hostname.com' will do a DNS lookup for
'hostname.com' using the DNS server 123.123.123.123, so you can check to be
sure formerly-authoritative servers are delegating properly.)
Also see the awesome tools at: http://www.geektools.com/ Their traceroute
links and whois queries are very handy for this kind of thing.
Of course, the best thing to do is a 'mail -v' on one of the hosts having
trouble mailing you, but that's seldom possible.
-glenn
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