On 12/27/2011 10:35 AM, Robert Wallner wrote: > I thought about that, but, if the dhcp server looses the leases file > (/var/lib/dhcp/dhcpd.leases), everything will be out of sync. > The only authority should be the list in the database. Then, by all means, generate a static allocation file from the database, just don't bother with reloading the server. If the lease file is lost (how, exactly?) then that would, within reason, be accompanied by a server restart.
As long as your server does not have an uptime of over 28 years, you're gold. Shachar > > On Tue, Dec 27, 2011 at 10:20 AM, shimi <linux...@shimi.net> wrote: >> On Tue, Dec 27, 2011 at 9:56 AM, Robert Wallner <kodi...@gmail.com> wrote: >>> In a DHCP server setup, I have 2 requirements: >>> >>> 1. Each client's mac address must be recorded in a database together >>> with the IP address assigned. >>> 2. Every new assigned IP address must be given from now on to the same >>> mac address only, and to nobody else. >>> >>> The first one is easy, I use the on-submit event handler to run an >>> external program to insert the mac address in the database. >>> I have problems with the second one. The same external program scans >>> the database, and generates a config file for the DHCP server that is >>> included from the main config file, and contains "fixed-address" >>> entries for all the mac addresses. The problem is how I make the >>> server reload it's configuration files, from it's own "on-submit" >>> event handler?? >>> >>> Or am I completely in the wrong direction? >>> >> >> Couldn't both requirements be solved[*] by using: >> >> default-lease-time infinite; >> max-lease-time infinite; >> min-lease-time infinite; >> >> in dhcpd.conf ? >> >> -- Shimi >> >> [*] I tried answering myself, and found [1] which claims the lease will hold >> for 914M seconds [per a sniffer]. From some reason he believes that would be >> 14.4 years. My Kcalc said 914M/(86400*365) is actually 28.98 years... >> Wouldn't we have to worry about Bug 2038 first? >> >> [1] https://lists.isc.org/pipermail/dhcp-users/2009-February/008040.html > > -- Shachar Shemesh Lingnu Open Source Consulting Ltd. http://www.lingnu.com
_______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
