Re: [TCLUG:7991] Newbie Problem with Telnet - It's working now, but why...

[Chris Kesler <chris@pconline.com>]

I'm guessing that your server was looking up the hostname of the client. 
I'm not sure why the server would care about the hostname of the client,
when it should already have the IP address.  But this sounds like the
server was waiting for DNS to timeout before responding.  The default
timeout is 30 seconds for each nameserver in /etc/resolv.conf. 

One difference between the two systems is the "Name Service Switch" stuff. 
glibc2 (new in RedHat 5.2, IIRC) has support for the Solaris-style
nsswitch.conf solution to allow DNS, NIS, and hosts file, etc to coexist. 
See 'man nsswitch'. 

Just a hunch.

Chris


On Sun, 29 Aug 1999, Bob Nolte wrote:

> Well, i got into some newsgroups and found a lot of people complaining 
> about slow connections. The concensus seemed to be a DNS/hosts problem. 
> Since I'm working with static IP addresses, I put the IP address of the 
> client computer in the etc/hosts file on the Linux box. The problem went 
> away. It had been taking about 2 minutes to send back a login prompt, which 
> was why I thought it wasn't working.
> 
> I can't remember any issues like this with my previous load of RH5.0 on the 
> same computer. Does anyone have any ideas as to what changed between these 
> two versions? Now I'm just curious.
> 
> Bob Nolte
> 
> 
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