Strange bootpd behavior (server side)
I'm having a small problem with our redhat 6.2 bootp server and maybe
yous guys can shed some light on it for me. The problem is that
whenever our DSL internet connection is down(which is too much.. I wish cable was available!), the bootpd stops responding to requests.. I can see the requests with tcpdump, but no replys. and when the internet is up sometimes is takes a little bit for the bootpd to respond to requests.
I think it's doing DNS resolution and if it can't find a DNS server
when the net's down, it just stops working. Does linux automatically do name resolution on every address it gets? If so can i turn this off?
Our network is behind a DSL modem/router (Flowpoint 2200) acting as
gateway(192.168.254.254), and we have 3 switches after that.
A lot of the time the router is finicky with linux even when
everything is working.. I know this is a bit off topic, but ANY suggestions are very welcome.
Here's my routing table..
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.254.13 * 255.255.255.255 UH 0 0
0 eth0
192.168.254.0 * 255.255.255.0 U 0
0 0 eth0
127.0.0.0 * 255.0.0.0 U 0
0 0 lo
default 192.168.254.254 0.0.0.0 UG 0 0 0
eth0
Thanks!
Kevin Fry
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Quoted 16 lines · Kevin Fry
I'm having a small problem with our redhat 6.2 bootp server and maybe
yous guys can shed some light on it for me. The problem is that
whenever our DSL internet connection is down(which is too much.. I wish cable was available!), the bootpd stops responding to requests.. I can see the requests with tcpdump, but no replys. and when the internet is up sometimes is takes a little bit for the bootpd to respond to requests.
I think it's doing DNS resolution and if it can't find a DNS server
when the net's down, it just stops working. Does linux automatically do name resolution on every address it gets? If so can i turn this off?
Our network is behind a DSL modem/router (Flowpoint 2200) acting as
gateway(192.168.254.254), and we have 3 switches after that.
A lot of the time the router is finicky with linux even when
everything is working.. I know this is a bit off topic, but ANY suggestions are very welcome.
it sounds like 'fun with PAM' that causes similar problems with my
TFTP server. I need to write a simple inetd replacement (sans PAM) just for TFTP, so we don't get killed by the delays caused by PAM authorization checks.
ron
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Quoted 5 lines · On 07-Aug-2001 Ron Flory wrote:
it sounds like 'fun with PAM' that causes similar problems with my
TFTP server. I need to write a simple inetd replacement (sans PAM) just for TFTP, so we don't get killed by the delays caused by PAM authorization checks.
You might like to look at the tcpserver program, part of the ucspi-tcp package http://pobox.com/~djb/ucspi-tcp.html
It monitors a given port, like inetd and runs a given program handle connections.
--
Mark Powell, Senior Software Engineer, Primagraphics Limited
New Cambridge House, Litlington, nr.Royston, Herts, SG8 0SS, UK Tel. +44 1763 852222, Fax. 853324, [email protected], http://www.primag.co.uk
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Check out the NAG:
http://www.linuxdoc.org/LDP/nag2/index.html
and there are probably a bunch of mail lists for Red Hat Network Administration. I can't recommend one because I use Debian. (If you want to upgrade your server from Dead Rat to Debian though [email protected] is a great list ;)
later,
Andy
Quoted 31 lines · Kevin Fry
I'm having a small problem with our redhat 6.2 bootp server and maybe
yous guys can shed some light on it for me. The problem is that
whenever our DSL internet connection is down(which is too much.. I wish cable was available!), the bootpd stops responding to requests.. I can see the requests with tcpdump, but no replys. and when the internet is up sometimes is takes a little bit for the bootpd to respond to requests.
I think it's doing DNS resolution and if it can't find a DNS server
when the net's down, it just stops working. Does linux automatically do name resolution on every address it gets? If so can i turn this off?
Our network is behind a DSL modem/router (Flowpoint 2200) acting as
gateway(192.168.254.254), and we have 3 switches after that.
A lot of the time the router is finicky with linux even when
everything is working.. I know this is a bit off topic, but ANY suggestions are very welcome.Here's my routing table..
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.254.13 * 255.255.255.255 UH 0 0
0 eth0
192.168.254.0 * 255.255.255.0 U 0
0 0 eth0
127.0.0.0 * 255.0.0.0 U 0
0 0 lo
default 192.168.254.254 0.0.0.0 UG 0 0 0
eth0
Quoted 3 lines
Thanks!
Kevin Fry
--
Andrew Dixon
Software Engineer
Seranoa Networks
978.897.3434 x231
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/