[php-maint] Bug#704011: php5-snmp: php fails to load snmp.so (i386)

[Ondřej Surý]

Hi Jaap,

this is most probably a change in default behaviou of the net-snmp
library.  I am ccing net-snmp maintainers.

Ondrej

On Sat, Mar 30, 2013 at 4:27 AM, Jaap Winius <jwinius at umrk.nl> wrote:
> Package: php5-snmp
> Version: 5.4.4-14
>
> Regarding my last message, the errors about a missing pam_auth.so had
> nothing to do with this problem. That file is found in php5-auth-pam, which
> is not in wheezy. Apparently it was still present, but not functioning
> properly, no doubt due to some missing dependencies, so removing that
> package was the fix.
>
> Otherwise I've discovered the cause of the original problem -- the reason
> for this bug report -- and I figure it must be related to php5-snmp.
>
> What I found was that the php scripts that Cacti uses to query the localhost
> are now being sent using IPv6 instead of IPv4 as before. My local snmp
> daemon was listening on IPv6, but unfortunately I had neglected to include a
> directive for 'rocommunity6' set to 'public', so that's why in my case Cacti
> stopped recording localhost information after the upgrade from squeeze.
>
> Cacti had also stopped recording information about my workstations, but this
> was for a different reason. In this case, php5-snmp 5.4.4-14 seems to have
> changed how Cacti's hostname field in its device descriptions is allowed to
> be formatted. Specifically, I had previously been adding hostnames with the
> format "udp6:host.domain.tld" so that they would only be contacted via IPv6.
> However, with the new version of php5-snmp that format no longer works and I
> must omit the 'udp6:' part. That certainly doesn't work on the Debian
> squeeze machines with Cacti that I still have running.
>
> I'm still pretty sure this has to do with the upgrade to php5-snmp 5.4.4-14,
> because the temporary downgrade to 5.3.3 that I performed last Monday did
> fix things for a while and I have about six hours of Cacti data to prove it
> (for both the localhost and the workstations). Now, so far I've managed to
> get everything working again because all of the hosts and services that I
> monitor with Cacti are also available via IPv6, but I'm not sure what I
> would do to monitor an IPv4-only host, or an IPv6-capable host with an snmp
> daemon that does not support IPv6.
>
> Cheers,
>
> Jaap



-- 
Ondřej Surý <ondrej at sury.org>