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Old 04-03-2003, 07:40 AM   #1
exalik
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Registered: Mar 2003
Location: PARIS / FRANCE
Distribution: Mandrake 9.2rc2
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dhcpd.conf


Hello,

I would like to know the syntax of the INTERFACES="" section of dhcpd.conf

Is it INTERFACES="eth0, eth1", INTERFACES="eth0 eth1", or something like this ???

No interfaces are precised at the moment and it's running but i want to forbid the dhcp server to listen on ppp0 interface for security reason.

I can't try because i only access to the linux server by my local subnet ; so i could do something bad and can't access to the server after !

Thank you for your help.

Exalik
 
Old 04-03-2003, 08:25 AM   #2
bentz
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Registered: Mar 2003
Distribution: Fedora, Mac OSX
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Interface specification does not belong in /etc/dhcpd.conf... dhcpd.conf is where you define your IP address range, DHCP Options (like domain name, DNS server, default gateway), static leases etc.

What you are looking for (this may be specific to Red Hat, you didn't give your distro) is '/etc/sysconfig/dhcpd'. If you add a line that says 'DHCPARGS="eth0 eth1"' it will only listen on these interfaces. To see a list of options that are valid for this DHCPARGS parameter, RTFM at 'man dhcpd'.
 
Old 10-15-2012, 09:13 AM   #3
Martin_E
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Registered: Apr 2011
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I have just encountered a similar issue.

On Ubuntu using dhcp3-server the interfaces are specified in a file /etc/default/dhcp3-server

Eg.


# Defaults for dhcp initscript
# sourced by /etc/init.d/dhcp
# installed at /etc/default/dhcp3-server by the maintainer scripts

#
# This is a POSIX shell fragment
#

# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
# Separate multiple interfaces with spaces, e.g. "eth0 eth1".
INTERFACES="eth2"
 
  


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