*** (0.28) *** [Linux-HA] Is this good for me?

[Alan Robertson]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

tovis wrote:
> I'm trying to understand how your toolset should be used, but it is some
> what messi for me;o(
> I'm working on a data collecting system which is collect data through
> several channels (3xRS-232 and GSM/GPRS through providers router connected
> to my box through crosswired cable). All connections working from the same
> box, because I need to keep them synchronusly, to each other - best choice
> is to use same box. For now all channels are unified and sended (through
> this box) on multicast channel to get them on several points on the
> internal LAN.
> I need to make this box more reliable! - obviouse choice the "100% warm
> reservation" - place an exactly same box, parallelize them using HUBS
> (RS-232 I also prallelized) but I can not have two NICs with same IP
> addresses! - I should them to swap. One box is a "slave" and one is a
> "master".
> Slave polls the IP address of the master, and if the address is goes down
> it should change his IP address to the IP address of the master and up all
> support softwares (six of them, for each communication line). To be shure
> that the both "master" and "slave" is OK I need to swap them periodically
> - using cron or at command. I plan swaps them in every 24 hours.
> What I need an IP paddress polling daemon, which could change IP address
> of a NIC and start all software interfaces, and silently go to sleep. On
> time all parts should be shut down, change IP address to slave and wakeup
> polling daemon again.
> What tool(s) is from Linux-HA is apropriate for me?

The heartbeat package will do most or all of what you want to do here,
and also a lot more.  The only thing to note is that we only move
aliases (secondary addresses) - not main/primary addresses.

You can make it do what you want -- if that's what you really want.


- --
    Alan Robertson <alanr at unix.sh>

"Openness is the foundation and preservative of friendship...  Let me
claim from you at all times your undisguised opinions." - William
Wilberforce
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (GNU/Linux)
Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org

iD8DBQFF23qsNkLhYXF6ZA4RAmoqAKCOCtypdc0EjqpNuwDWlJQWa/U+SACgiWWF
xJlcMUfzQl2DitR05q/x+0w=
=pyLN
-----END PGP SIGNATURE-----