[ale] Internet connectivity question

[Bob Toxen]

On Mon, Nov 06, 2006 at 12:33:36PM -0500, Greg Freemyer wrote:
> Jerry,

> Good idea about the reverse DNS issue.  I had totally forgotten about
> that and I should know enough not to do that.  ie. I've hit that
> problem many times before.

> I just verified that cbeyond does not have a default reverse DNS setup
> for my static IPs.  Hopefully they have a way for me to create those.
Some ISPs are so incompetent they don't supply that RDNS.  Comcast's
servers were so flakey that it worked some of the time for a long time.

Sometimes you can fix this with your own forward (normal) DNS entry for
the Fully-qualified Host Name (FQHN) of your choice that will cause a
similar RDNS entry.

> Greg

Bob Toxen
bob at verysecurelinux.com               [Please use for email to me]
http://www.verysecurelinux.com        [Network&Linux/Unix security consulting]
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Quality Linux & UNIX security and SysAdmin & software consulting since 1990.

"Microsoft: Unsafe at any clock speed!"
   -- Bob Toxen 10/03/2002

> On 11/4/06, Jerry Yu <jjj863 at gmail.com> wrote:
> > greg,
> > Is the box, with which you tested, NATed?  Either way, if the remote can't
> > reverse lookup your IP, they could be some DNS delays there.
> >
> >
> > On 11/3/06, Jim Popovitch <jimpop at yahoo.com> wrote:
> > > On Fri, 2006-11-03 at 17:50 -0600, Jack Schneider wrote:
> > > > >
> > > > Just a test.
> > > > time telnet mail.dmares.com 25
> > > > Trying 209.150.157.211...
> > > > Connected to mail.dmares.com.
> > > > Escape character is '^]'.
> > > > 220 plus42.host4u.net ESMTP Fri, 3 Nov 2006 17:35:38 -0600
> > > > Connection closed by foreign host.
> > > >
> > > > real    7m50.918s
> > > > user    0m0.020s
> > > > sys     0m0.004s
> > > >
> > > > After a 90,000 mile trip..
> > > > tn -->Satellite --> NY-->ALE+
> > > >
> > > > 8-)
> > > >
> > > > Jack
> > >
> > > I'm not sure if you are being facetious about the timing or humorous
> > > about the distance, however the OP showed their timing using a
> > > "quit" (presumably manually entered immediately after the successful
> > > connect).
> > >
> > > -Jim P.
> > > _______________________________________________
> -- 
> Greg Freemyer
> The Norcross Group
> Forensics for the 21st Century