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Old 02-15-2008, 10:44 AM
Bill Campbell
 
Posts: n/a
Default Re: what makes ftp'ing to sco 5.0.5 slow

On Sat, Oct 04, 2003, Bill Vermillion wrote:
>In article <OWifb.11349$IE1.7715@newssvr25.news.prodigy.com >,
>Enrique Arredondo <atk@sbcglobal.net> wrote:
>
>>Where can I find a log or settings on my sco 5.0.5 box to find
>>out why is that when somebody tries to ftp in this machine
>>it takes sometimes a couple of seconds and some times it's
>>instantaneously and worse times it just drops the connection and
>>leaves an fptd process running. How come on the same machine all
>>incoming telnet connections are 100% completed and fast when
>>given the login ???

>
>So some questions. Are the ftp sessions from a local LAN, or from
>the internet where the far end is broadband, or with the far end
>on dial-up?
>
>With telnet always fast and ftp slow on some connections it
>sounds like it could be packet sizes on one of the machines are set
>too high and thus have to be split. Ftp is going to use large
>segments while telnet is going to be using quite small packets.


Usually slow ftp connections are caused by slow DNS or missing reverse DNS
(rDNS), particularly using the wu-ftpd ftp server configured to require
some rDNS for a connection.

Bill
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