Start DHCPd and configure iptables on boot (Debian Sarge)

Qis · 02-07-2005, 04:00 PM

Hi all,

To experiment a little with Debian I've installed a laptop with Sarge.

Playing around with this I've run into two problems, hope some(one) of you can help me out.

On my server I'm running Debian Woody which has a script /etc/init.d/iptables. I use that script (/etc/init.d/iptables save_active) to save and load my iptables at boot.

The Sarge installation doesn't seem to have this script, what is the right way to save the iptables so they will be invoked when rebooting?

Second problem:
my DHCPd won't start at boot... There is a script in /etc/init.d called dhcp, running this script with start as parameter works fine.
There's also a link to that script in /etc/rc*.d:

Quote:

debbitop:/etc# find rc*.d -name "*dhcp*" -exec ls -l {} ";"
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc0.d/K20dhcp -> ../init.d/dhcp
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc1.d/K20dhcp -> ../init.d/dhcp
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc2.d/S20dhcp -> ../init.d/dhcp
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc3.d/S20dhcp -> ../init.d/dhcp
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc4.d/S20dhcp -> ../init.d/dhcp
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc5.d/S20dhcp -> ../init.d/dhcp
lrwxrwxrwx 1 root root 14 Feb 7 17:05 rc6.d/K20dhcp -> ../init.d/dhcp

Hope some can help me out

Regards, Chris

Qis · 02-08-2005, 01:15 PM

The iptables problem is solved, just implemented the script Woody uses.

Any suggestions on the DHCPd though?

Qis · 02-09-2005, 07:01 AM

I've found the problem with the DHCP, but have no idea how to solve it.

It's unable to start because the interface (eth1) doesn't have an ip (yet) when the DHCP tries to start.

Quote:

dhcpd: receive_packet failed on eth1: Network is down
dhcpd: No subnet declaration for eth1 (0.0.0.0).
dhcpd: Please write a subnet declaration in your dhcpd.conf file for the
dhcpd: network segment to which interface eth1 is attached.
dhcpd: exiting.

Any suggestion?

HellSpawn · 03-01-2005, 10:23 AM

So....

Did you try to give eth1 an IP address??

Qis · 03-01-2005, 01:59 PM

The problem is that /etc/network/interfaces is loaded after DHCPd is started.

So when the DHCPd starts eth1 doens't have an IP yet.

HellSpawn · 03-01-2005, 06:18 PM

Could you paste the content of your /etc/rc.d/rc3.d or rc5.d/

I think the # of the S file (S#dhcpd) have to be bigger than the # of S#network, you can rename this links without trouble...

Another solition could be to inlcude:

/etc/init.d/network start

at the begining of your /etc/init.d/dhcpd script, or maybe just an ifconfig command.

AND,

You can always call:

/etc/init.d/dhcpd start

from the rc.local script

Qis · 03-02-2005, 05:34 AM

Thanks increasing the number of /etc/rc?.d/S20dhcp was a solution.