🚀 go-pugleaf

Geoff Blake <geoff@palaemon.demon.co.uk> writes:

> I have a few Linux boxes, in the main running RH4.2 and are
> generally quite similar. One machine is _extremely_ slow in
> connecting via ethernet. When pinged, it responds in around
> 1.5mS(ish) but when telnet'ing, the connection is instant, but the
> login prompt can take 30-60 seconds to appear. Similar time delays
> apply to ftp and http conections. Once the connection is made,
> response is pretty well normal (as far as I can tell). Console
> logins are normal.

Check that the target machines's resolver is configured correctly and
is working, and that there are forward and reverse DNS entries for the
host you are connecting from.

> The machine concerned uses a SiS chipset and P75/30MB (the other 2MB
[..]

Were I a betting man I'd put a tenner on this not being a hardware
problem.

Geoff Blake <geoff@palaemon.demon.co.uk> wrote in article
<EqnH8s.FA9@palaemon.demon.co.uk>...
> Hi there,

Howdy.

> I have a few Linux boxes, in the main running RH4.2 and are generally
quite
> similar. One machine is _extremely_ slow in connecting via ethernet. When
> pinged, it responds in around 1.5mS(ish) but when telnet'ing, the
connection
> is instant, but the login prompt can take 30-60 seconds to appear.
Similar
> time delays apply to ftp and http conections. Once the connection is
made,
> response is pretty well normal (as far as I can tell). Console logins are
> normal.

Do a large FTP (30 or so megs) and give us the time figures.  I see around
600k/sec over my dodgy ethernet (Win95 (64Mb, P200) + 2 Linux (DX4/100/120,
16Mb, 250Mb) + 1 Win3.11 (DX2, 16Mb, 130Mb)) which isn't bad.  All linked
on freebies!

> The machine concerned uses a SiS chipset and P75/30MB (the other 2MB are
> used by the onboard SiS graphics) and uses IDE disks. The software build
is

SiS graphics... ough

> pretty much "straight out the box" RH4.2. It's primary use is an Intranet
> server although I intend to add dns and dhcp serving when this bug is out
> the way.
> 
> I suspect the Intel EE16 NIC (it may have "forgotten" its IRQ or address
> and be clashing with something else), but before I down the machine to
> change the card (at the weekend) has anybody have any other ideas, for
> example some strange incompatibility with the on-board graphics?

I have heard some horrible things about these.  Try a normal graphics card.

TB

In article <EqnH8s.FA9@palaemon.demon.co.uk>,
Geoff Blake  <geoff@palaemon.demon.co.uk> wrote:
>Hi there,
>
>I have a few Linux boxes, in the main running RH4.2 and are generally quite
>similar. One machine is _extremely_ slow in connecting via ethernet. When
>pinged, it responds in around 1.5mS(ish) but when telnet'ing, the connection
>is instant, but the login prompt can take 30-60 seconds to appear. Similar
>time delays apply to ftp and http conections. Once the connection is made,
>response is pretty well normal (as far as I can tell). Console logins are
>normal.

There's something wrong with your DNS configuration.  The Linux machine
is trying to do a reverse DNS lookup to discover the source of the
connection and this lookup is timing out.

>The machine concerned uses a SiS chipset and P75/30MB (the other 2MB are
>used by the onboard SiS graphics) and uses IDE disks. The software build is
>pretty much "straight out the box" RH4.2. It's primary use is an Intranet
>server although I intend to add dns and dhcp serving when this bug is out
>the way.

Set up the DNS now and you should find the problem goes away.

HTH
John
-- 
John Winters.  Wallingford, Oxon, England.

The Linux Emporium - a source for Linux CDs in the UK
See <http://www.polo.demon.co.uk/emporium.html>

Geoff Blake wrote:

> I have a few Linux boxes, in the main running RH4.2 and are generally quite
> similar. One machine is _extremely_ slow in connecting via ethernet. When
> pinged, it responds in around 1.5mS(ish) but when telnet'ing, the connection
> is instant, but the login prompt can take 30-60 seconds to appear. Similar
> time delays apply to ftp and http conections. Once the connection is made,
> response is pretty well normal (as far as I can tell). Console logins are
> normal.

Sounds like your resolv.conf is wrong. Make sure that it is pointing to
a valid DNS server of that your hosts file is right.
-- 
Jason Clifford
Genesis Linux Systems
http://genesis.ukpost.com

In article <wwv4t0ferti.fsf@sfere.greenend.org.uk> rjk@greenend.org.uk  writes:

> Geoff Blake <geoff@palaemon.demon.co.uk> writes:
> 
> > I have a few Linux boxes, in the main running RH4.2 and are
> > generally quite similar. One machine is _extremely_ slow in
> > connecting via ethernet. When pinged, it responds in around
> > 1.5mS(ish) but when telnet'ing, the connection is instant, but the
> > login prompt can take 30-60 seconds to appear. Similar time delays
> > apply to ftp and http conections. Once the connection is made,
> > response is pretty well normal (as far as I can tell). Console
> > logins are normal.

> Check that the target machines's resolver is configured correctly and
> is working, and that there are forward and reverse DNS entries for the
> host you are connecting from.

..or that the /etc/hosts file on the slow server contains the entries 
for all the machines connecting.
-- 
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