Slow Telnet & FTP response

Slow Telnet & FTP response

Post by Ste » Sat, 13 Mar 1999 04:00:00



Hi,

Lill help needed.

Currently have two Red Hat servers (1x5.1 & 1x5.2), connected to an ethernet
LAN using 3com office connect hubs, and both have 3c509 nics.

From a w'98 machine I can connect to them instantly using http, but telnet
takes EXACTLY 1m 15 sec for the server to respond after connection and
around the same time for FTP - using various clients.

I have tried connecting to the same hub, from a different hub on the same
segment and even telnetting from one server to the other... same result.

The only thing that gets me is the connection is made within seconds but it
takes so long for the prompts to be displayed on the client.

Any clues ?

Regards,

 
 
 

Slow Telnet & FTP response

Post by Don Heffern » Mon, 15 Mar 1999 04:00:00



>Hi,

>Lill help needed.

>Currently have two Red Hat servers (1x5.1 & 1x5.2), connected to an ethernet
>LAN using 3com office connect hubs, and both have 3c509 nics.

>From a w'98 machine I can connect to them instantly using http, but telnet
>takes EXACTLY 1m 15 sec for the server to respond after connection and
>around the same time for FTP - using various clients.

>I have tried connecting to the same hub, from a different hub on the same
>segment and even telnetting from one server to the other... same result.

>The only thing that gets me is the connection is made within seconds but it
>takes so long for the prompts to be displayed on the client.

>Any clues ?

I had an identical problem and someone in this group explained that
ftp and telnet try to do reverse DNS lookups (I only experienced the
probelm when I was not connected outside my home LAN and thus had no
DNS).  The suggestion - which worked fine - was to add entries for the
machines you are telnetting FROM to the hosts table.

Don Heffernan

 
 
 

Slow Telnet & FTP response

Post by mist » Mon, 15 Mar 1999 04:00:00



Quote:>Hi,

 [Telnet is slow from Win98 machines]

The usual cause is that /etc/hosts (and/or DNS) on the Linux machines is
not configured properly.  Make sure that at the very least the Linux
boxes' IPs and names are in /etc/hosts.
--
Mist.

 
 
 

1. Slow Telnet & FTP response


Subject: Slow Telnet & FTP response
Date: 12 March 1999 02:20

Hi,

Lill help needed.

Currently have two Red Hat servers (1x5.1 & 1x5.2), connected to an ethernet
LAN using 3com office connect hubs, and both have 3c509 nics.

From a w'98 machine I can connect to them instantly using http, but telnet
takes EXACTLY 1m 15 sec for the server to respond after connection and
around the same time for FTP - using various clients.

I have tried connecting to the same hub, from a different hub on the same
segment and even telnetting from one server to the other... same result.

The only thing that gets me is the connection is made within seconds but it
takes so long for the prompts to be displayed on the client.

Any clues ?

Regards,

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