From: Kevin Colagio (kdc@rochester.rr.com)
Date: Mon Dec 16 2002 - 21:29:22 EST
Thanks to those who responded so far....here are the ideas I have received:
1) check /etc/nsswitch.conf (Note: I never had a problem resolving a name)
2) Set the port speed manually, no autonegotiation (set it, but that didn't
change how it was recognized...)
3) Comparison to a Linux router box....this isn't Linux, it's a Solaris box
with a Linksys router...I'm not running iptables or anything else on the Sun
box... I did try setting the MTU to 1500, but didn't notice a difference.
4) Setup my Sun box as a DNS server for the LAN and point the other systems
there (again, I'm not having any problems resolving).
The problem is only when data is going back and forth between the Sun box
and another system, not when trying to locate a host or resolve a name.
I have also tried the following:
1) (again) set the MTU on the Linksys box.
2) set the port speed manually on the Sun box (The Linksys does 10 or
100...I can't set it anywhere)
3) setup forwarding on the Linksys so that anything hitting port 23 on the
Linksys went to port 23 on the Sun (do not pass go, do not collect $200).
None of the above made any impact.
I also ran chkrootkit, just as a precaution....nothing.
Any other ideas?
Thanks again!
Kevin Colagio
kdc@rochester.rr.com
System Administrator and Perpetual Student.
-----Original Message-----
From: Kevin Colagio [mailto:kdc@rochester.rr.com]
Sent: Sunday, December 15, 2002 11:28 PM
To: sunmanagers@sunmanagers.org
Subject: Network slowness
Background info:
I have a Sunblade 100 running Solaris 8. This box sits behind a cable modem
connection and a Linksys Router w/ 4 switched ports. My PC is on another
port (hey! I need a game machine, right?). So it looks basically like
this:
|----Sunblade 100
---Cable---|cable modem|----|Linksys|----PC
The Linksys' WAN port is configured as a DHCP client.
The Linksys is configured to perform as a NAT box.
The Linksys has an internal address of 172.16.23.1/255.255.255.0
The Sunblade 100 has an IP address of 172.16.23.254/255.255.255.0
The Sunblade has a /etc/defaultrouter file with 172.16.23.1
The Sunblade's nameserver entries (in /etc/resolv.conf) is the same as the
entries on the Linksys.
The Sunblade is my DMZ box.
The PC has an IP address of 172.16.23.2/255.255.255.0
The PC has the same router and DNS entries as the Sun.
The problem:
When I try and make a "remote" (outside of some unknown space) connection,
the connection is VERY slow. For example, an ftp from the command line
results in the server timing out on my client. People can't FTP files into
my box. If I try and telnet in from work, it's impossible to do anything
because the transfers are so slow. (vi becomes unusable). However, if I
telnet from the PC to the Sun directly, no problem. If I use the external
IP address of the router, no problem with the PC -> Sun connection. If I
use the PC to get the same file that the Sun choked on, no problem...and
it's fast. Telneting out to a common site gives similar results (Sun: slow
as cold molasses; PC: no problem).
Does anyone have any suggestions? If you need more info to make a guess,
just let me know.
Thanks in advance.
Kevin Colagio
kdc@rochester.rr.com
System Administrator and Perpetual Student.
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