Re: Help



On Tue, 20 Dec 2005, in the Usenet newsgroup alt.os.linux.suse, in article
<pan.2005.12.21.02.48.40.904832@xxxxxxxxxxxxx>, Valentin Guillen wrote:

>Funny how the DNS records accross the US vanish for several hours after
>the article's posting, and then magically reappear at a later time.

Not really - if you look at the DNS records, they have a TTL of 3600
seconds - an hour. If the name servers go down, or someone fscks the
zone file, the name disappears in 60 minutes. This is normally used
by spammers when they know they'll be kicked off a network, so people
querying for the name will get the address of the "new" location.

The rDNS resolves to 'unknown.ord.scnet.net' (also with a TTL of 3600)
which is also quite typical of a spam operation. Doing a whois query on
the domain comes up with mainly useless information, including the fact
that the domain name servers are ns1.servercentral.net and
ns2.servercentral.net. I've had some difficulties with that hosting
service in the past. Your mystical disappearance could have been caused
by servercentral.net screwing up again.

>I'll do some research to see if this article is the same as the original
>posted several hours ago.

diff -bw should be able to tell - but what does this have to do with
Linux, SuSE or otherwise?

Old guy
.



Relevant Pages

  • Re: BIND process size
    ... Because DNS queries ahould be answered very quickly, ... cache as many DNS records it learns from other servers as possible (and ... For example, on my servers ... Rushan Sobar wrote: ...
    (RedHat)
  • Post-Domain Rename - Old Domain Lingers
    ... DNS servers, none of the three DNS servers are not referencing themselves, ... authoritative for the DNS records that failed registration ...
    (microsoft.public.windows.server.dns)
  • DNS Propagation
    ... Recently I enabled a new IP range on my firewall. ... range to organize my DNS records like mail, www, ns1, ns2, and others. ... I find out that some DNS servers updated themselves with my new ...
    (comp.protocols.dns.bind)
  • Re: [SLE] Mail server help
    ... I have been able to send email out to internet addresses, ... You must use their servers. ... Earthlink also blocks outgoing SMTP mail ... Since your Earthlink mail address is listed in their DNS records, ...
    (SuSE)
  • Re: cannot connect to pop3 server without using full domain
    ... It sometimes takes a while for the DNS records to completely update, ... Outlook 2003 is caching the DNS entry for the mail servers which doesn't ... No particular reason to use just "pop3" except to save some typing. ...
    (microsoft.public.outlook)