Re: [Devil-Linux-discuss] Smart way to assign secondary IPs to loopback?

[Bruce S. <bw...@re...>]

I don't recall having any plans to replace those scripts.  Perhaps
someone else said they were going to?

 - BS


> I don't think there's an elegant way right now.
> You can always just create your own init script from the
> /etc/init.d/skeleton file and make sure it starts early, then you don't have
> to worry about it being overwritten by an update.
>
> I would wait with changing the init script, Bruce was planing on replacing
> the scripts. Is that still correct Bruce?
>
> --
>
> Regards
>   Heiko Zuerker
> http://www.devil-linux.org
>
> Quoting "Rudner, Björn" <br...@ba...>:
>
> Hi List,
> I'm using DL with heartbeat - ldirector and apache for a long time now.
> Now I'm doing some tests with upgrades from the "old" /etc to the "new" /etc
> - storage.
> One thing that I ran over on this is the following:
> Since I use Apache as an active/active-cluster on two boxes I need to assign
> a whole bunch of secondary IP-addresses (right now > 20
> virtual-IP-Addresses) to the Loopback-Interface.
> (Ldirector routes these from one node to the other and therefore the
> IP-Adresses must be known there internally - Also the Apaches bind to these
> addresses.)
> Heartbeat then removes them from the Loopback and assings them to the
> physical interface and issues an arp-update to the connected routers on the
> active node.
> On the other hand it removes these IP-adresses from the physical NIC and
> assignes it back to the Loopback as the node goes standby.
> At the moment I have just added some "ip addr add" commands to
> /etc/init.d/localnet. The adresses must be known before apache and heartbeat
> starts (else heartbeat will not move them back to loopback when the node
> goes standby)
> Since this is a quick & dirty method I also have to keep an eye on that file
> on every DL-update (it is not choosen to be kept by default on updates)
> Now to my question:
> Is there already a smarter way (I may have overlooked) to assign secondary
> IP-addresses to the loopback interface early in the boot-process without the
> need to change the init-scripts?
> If there is not I might try to rework the localnet-script to reflect those
> needs to keep this update-save.
> Mit freundlichen Grüßen/Kind regards,