Re: [Nagiosplug-devel] nagios check_carp for OpenBSD carp(4)
Just to follow-up: I have written a plugin that uses the somewhat complete PHP Net-SNMP bindings (no getsnmptable() ?!) and the new PF-MIB::CARP Agent Extensions to Net-SNMP snmpd(8). I'll post it on NagiosExchange for review if/when I can deploy a production 4.1-stable system. ~BAS On Fri, 2006-12-15 at 19:15 -0500, Brian A. Seklecki wrote: Thoughts? Strategies? Ideas? --- IMPORTANT: This message contains confidential information and is intended only for the individual named. If the reader of this message is not an intended recipient (or the individual responsible for the delivery of this message to an intended recipient), please be advised that any re-use, dissemination, distribution or copying of this message is prohibited. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system.
Re: nagios check_carp for OpenBSD carp(4)
--- Quoting Christopher Snell on 2006/12/18 at 22:38 -0700: On 12/15/06, Brian A. Seklecki [EMAIL PROTECTED] wrote: Thoughts? Strategies? Ideas? --- Ask the machine directly? Ask an adjacent machine? Joel Knight just released an updated OpenBSD SNMP MIB that supports reading data from the sensors framework. Perhaps he could be persuaded to add support for CARP state detection? :) Actually reading this thread has already persuaded me. This is something that would be useful for me. Stay tuned. .joel
Re: nagios check_carp for OpenBSD carp(4)
On 12/15/06, Brian A. Seklecki [EMAIL PROTECTED] wrote: Thoughts? Strategies? Ideas? --- Ask the machine directly? Ask an adjacent machine? Joel Knight just released an updated OpenBSD SNMP MIB that supports reading data from the sensors framework. Perhaps he could be persuaded to add support for CARP state detection? :) Chris
Re: nagios check_carp for OpenBSD carp(4)
* Brian A. Seklecki [EMAIL PROTECTED] [2006-12-16 01:20]: - C utility to ask /dev/pf pf(4) definately the best option. except that there is no carp shitz to query via /dev/pf. c'mon, it's and INTERFACE, and doesn't have ANYTHING to do with pf whatsoever. Preempt: Unlike HSRP Groups where interfaces can preempt can apply to select group of interfaces, it is safe to assume that if preempt is enabled and one interface in a SLAVE state; all other are in that state. not true. first, it's per-group in 4.0 and up. all carp interfaces are in group carp by default, so that is used to emulate the old behaviour. but nothing stops you from doing # ifconfig carp3 -group carp # ifconfig carp4 -group carp # ifconfig carp3 group hsrp # ifconfig carp4 group hsrp and you have your hsrp group with two carp ifs. then, they don't really actually fail over as groups. they try to, tho. assume a setup with carp0, 1 and 2 on 2 boxes, one group, preempt enable. box1 is master. due to operator screwup, carp2 on box2 is not up (similarities to reality are pure coincidence, this is of course all fictional...), something raises carpdemote on box1, so box2 takes over. carp0 and 1 will be master on box2 now, carp2 still on box1 tho, because there is no other. -- Henning Brauer, [EMAIL PROTECTED], [EMAIL PROTECTED] BS Web Services, http://bsws.de Full-Service ISP - Secure Hosting, Mail and DNS Services Dedicated Servers, Rootservers, Application Hosting - Hamburg Amsterdam
