Götz Reinicke - IT-Koordinator
2010-Jul-29 11:55 UTC
[CentOS] DHCP failover ... Some questions.
Hi, I plan to reorganise our IP management and I'd like to implement a slave DHCP server. Right now we assign IP addresses based on the ethernetadress of a client 1:1. The tutorial here [1] is simple and looks like the thing I need. I do have a lot of subnetworks and my cisco router has an DHCP helper address set. I know I'll have to add the second dhcp-server address. My questions now is: Dose the dhcp-slave syncs the dhcp data from the master? Or do I have to copy the data to the master AND slave? Any other sugesstions or comments? Thanks and best regards, G?tz [1] http://www.howtoforge.com/how-to-set-up-dhcp-failover-on-centos5.1 -- G?tz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke at filmakademie.de Filmakademie Baden-W?rttemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzende des Aufsichtsrats: Prof. Dr. Claudia H?bner Gesch?ftsf?hrer: Prof. Thomas Schadt -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 6656 bytes Desc: S/MIME Cryptographic Signature URL: <http://lists.centos.org/pipermail/centos/attachments/20100729/baae8383/attachment.p7s>
On 29/07/10 9:55 PM, G?tz Reinicke - IT-Koordinator wrote:> Hi, > > I plan to reorganise our IP management and I'd like to implement a slave > DHCP server. Right now we assign IP addresses based on the > ethernetadress of a client 1:1. > > The tutorial here [1] is simple and looks like the thing I need. > > I do have a lot of subnetworks and my cisco router has an DHCP helper > address set. I know I'll have to add the second dhcp-server address. > > My questions now is: > > Dose the dhcp-slave syncs the dhcp data from the master? > > Or do I have to copy the data to the master AND slave? > > Any other sugesstions or comments? > > > Thanks and best regards, > > G?tz > >Hi, I thought the latest dhcp server had built-in support for master-slave scenarios, it just replicates current status to the slave, and when it fails the slave takes over. Phil.
G?tz Reinicke - IT-Koordinator writes:> Hi, > > I plan to reorganise our IP management and I'd like to implement a slave > DHCP server. Right now we assign IP addresses based on the > ethernetadress of a client 1:1. > > The tutorial here [1] is simple and looks like the thing I need. > > I do have a lot of subnetworks and my cisco router has an DHCP helper > address set. I know I'll have to add the second dhcp-server address. > > My questions now is: > > Dose the dhcp-slave syncs the dhcp data from the master? > > Or do I have to copy the data to the master AND slave? > > Any other sugesstions or comments?The servers will balance the pool(s) between them. It's actually fun (for personal preference values of "fun") to tail the logs on both servers after starting the slave and watch dhcpd communicate. --------------------------------------------------------------- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. ---------------------------------------------------------------