News Group Posts

dns telnet delay

From: Jeff Liebermann <jeffl@comix.santa-cruz.ca.us>
Newsgroups: comp.unix.sco.misc
Subject: Re: network configuration woes,gateway,DNS
Date: Sat, 17 Jun 2000 01:04:51 -0700
Message-ID: <8fbmksk0i07sa04e8s7n0vf88s7c1056do@4ax.com> 
References: <39463169.7115654@news.supernews.com>
<0gpaks0a5b1ktokjvs51cebgqro6dpavqo@4ax.com>
<4.3.2.7.2.20000612193600.00c76960@scogr1.cscc.maximus.com>
<i8pcksk88uk3qapeb9nci5j7r9lia6e49s@4ax.com>
<4.3.2.7.2.20000613160546.00d45140@scogr1.cscc.maximus.com>
<gkfdkso8qod7k1o0mdkpvujnu8irebt909@4ax.com>
<4.3.2.7.2.20000613201512.00c78b30@scogr1.cscc.maximus.com>
<c4odksofdhlc4v0o5r4vkn871i6lpfdokk@4ax.com>
<4.3.2.7.2.20000616175041.00d5fa80@scogr1.cscc.maximus.com> 

On Fri, 16 Jun 2000 22:01:23 GMT, Ken Wolff <kenw@cscc.maximus.com>
wrote:

>I may give this a try.  But in the next week I'm also going to be 
>installing our own local DNS server (Linux) and adding internal 172.20.1.x 
>addresses for all internal machines to that.  I hope that may solve the 
>problem.

It probably will.  Any response, from any nameserver will speed up the
logins if the ISP goes away.  The problem comes from the application
waiting for a response on the assumption that the nameserver is simply
busy, and subsequent retried.  DNS (named) is almost identical between
Linux and OSR5.  If you can do one, you can do the other.  Be sure to
do lots of testing with nslookup.  You'll also find the OSR5 "host"
command to be quite useful as a less user-hostile front end to
nslookup.

>I may be dumb here, but I thought I needed to run routed to set my system's 
>default route to my gateway.  Do I not need to run routed?

You do NOT need to run routed unless you are running RIP.  The
similarity of the "route" command, and the "routed" daemon is
undoubtably the source of this confusion.

>Can I do a 
>route add default xxx.xxx.xxx.xxx without routed running and will it 
>work.

Yep.  I kill of routed on every one of my OSR5 servers and still have
a default route.  Try it.  Kill route and run:
        netstat -rn
to see the routeing table.

>BTW, this was advice I received 
>from one of the few calls I placed to SCO Support (what are they, services 
>and sales?).

SCO Service Sales also known as 1-800-SCO-UNIX.  Usually, they're a
bit better than that.  They're not really SCO support but they are
suppose to be able to answer some techy questions.

I didn't get a chance to attempt to reproduce the telnet delay problem
(thanks to playing with a new digital camera and vehicle problems).
While I believe this is what you're seeing, I want to convince myself
it's real.


-- 
Jeff Liebermann   jeffl@comix.santa-cruz.ca.us
150 Felker St #D  Santa Cruz CA  95060
831-421-6491 pager   831-429-1240 fax
http://www.cruzio.com/~jeffl/sco/   SCO stuff

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