From: Michael Stella (michael.stella@regiscollege.edu)
Date: Thu Dec 18 2003 - 10:42:07 CST
Thanks Patrick, the below fix worked perfectly!
The last question lingering on my mind is how to effectively test our netreg
server under a similar amount of load that it will be seeing mid January
when about 600 students all try to register over 2 days. What have you
netreg pro's done in this situation?
Currently Netreg is running on a P4 2.4 Gig 256 Meg RAM and 2 mirrored 40
gig ATA/100 HD's w/ Redhat 9.0....
Thanks again!
-Mike
****************************
Michael Stella
Network Services Administrator
michael.stella@regiscollege.edu
Voice: 781-768-7176
Fax: 781-768-7344
-----Original Message-----
From: owner-netreg@southwestern.edu [mailto:owner-netreg@southwestern.edu]
On Behalf Of Patrick Jaques
Sent: Wednesday, December 17, 2003 8:13 PM
To: netreg@southwestern.edu
Subject: RE: NetReg: DHCP refresh problems
Hi Mike,
I have encountered this same problem with Red Hat 9.0 Linux. The problem is
that the process id returned from the 'ps aux' command does not matching the
process id in /var/run/dhcpd.pid. The 'ps aux' command returns two process
ids, which causes it not to match the process id in dhcpd.pid. I never
encountered this problem until I upgraded to Red Hat version 9.0. The
attached script fixes the problem.
Add 'grep -v refresh-dhcpdconf|' to the two 'ps aux' command lines in the
refresh-dhcpdconf script. This will resolve the problem. See the below
example:
if [ "`ps aux|grep dhcpd|grep -v grep|grep -v refresh-dhcpdconf|awk '{print
$2}'`" != "`cat /var/run/dhcpd.pid`" ]; then
-- Patrick
-----Original Message-----
From: owner-netreg@southwestern.edu [mailto:owner-netreg@southwestern.edu]
On Behalf Of Michael Stella
Sent: Wednesday, December 17, 2003 7:15 PM
To: netreg@southwestern.edu
Subject: RE: NetReg: DHCP refresh problems
Hello!
I seem to be having this same issue. I tried the change below but there
seemed to be no effect. I've been able to determine that the clients are
registering OK - the refresh script swaps in the dhcp.conf.new to dhcp.conf
- then restarts the server just fine. Then I assume I am seeing the problem
below as the script then copies dhcpd.conf to dhcpd.conf.bad and the
dhcpd.conf.bak file into dhcp.conf and tries to start the server without
stopping it first. (If I run the script by hand I can see this happening).
Then it even complains that it has a fatal error and can't start anything
even though DHCP is up and working fine.
I made the changes below but that didn't seem to help. I am running Netreg
on Redhat 9.
Any ideas?
Thanks in advance!
-Mike
****************************
Michael Stella
Network Services Administrator
michael.stella@regiscollege.edu
Voice: 781-768-7176
Fax: 781-768-7344
-----Original Message-----
From: owner-netreg@southwestern.edu [mailto:owner-netreg@southwestern.edu]
On Behalf Of Brad Pinkston
Sent: Thursday, December 04, 2003 11:42 AM
To: netreg@southwestern.edu
Subject: NetReg: DHCP refresh problems
It seems as though people are having trouble using the refresh-dhcpdconf
script with other packages. There are a couple of tweaks to the script that
may help solve these problems.
Edit the file and change your paths to all dhcpd.conf files. Then change
the line:
if [ "`ps aux|grep dhcpd|grep -v grep|awk '{print $2}'`" != "`cat
/var/run/dhcpd.pid`" ]; then
to
if [ "`ps axc|grep dhcpd|grep -v grep|awk '{print $1}'`" != "`cat
/var/run/dhcpd.pid`" ]; then
It seems this pid file and current running pid aren't matching up correctly.
I experienced this with Redhat Enterprise v3.
This has not been tested on any other platforms and should not be considered
failsafe until you test all possible scenarios yourself.
Hope it helps.
Brad Pinkston
Firewall/Network Administrator
Checkpoint CCSA
Centenary College of LA
(318) 869-5721
bpinksto@centenary.edu
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