about /var/lib/dhcp/dhclient-eth0.leases

[David W. Hankins]

On Fri, Feb 02, 2007 at 08:47:56PM +0530, hitesh sharma wrote:
>              i m using the dhclient on redhat , i want to know tht waht i=
> s
> /var/lib/dhcp/dhclient-eth0.leases file . bcz in all documents , it shows=
>  ,
> there shud be only one filr named  /var/lib/dhcp/dhclient.leases.=0D
>  waht is importance of dhclient-eth0.leases file there.?=0D
>  thanks=0D
>                         hitesh sharma

dhclient was designed to have only a single daemon allocate
addresses for all interfaces.  As a result, the daemon only
recognizes one dhclient.leases file.

Meanwhile, the model employed by operating systems in bringing
network interfaces up and down is on a per-interface basis.

So if Redhat's system integrators ran dhclient twice without
specifying different dhclient.leases files as a command line
option, there would be problems.  The two daemons would compete
for the file, overwriting each other's output.

-- 
David W. Hankins	"If you don't do it right the first time,
Software Engineer		you'll just have to do it again."
Internet Systems Consortium, Inc.	-- Jack T. Hankins