Avahi on Breezy followup

So after I posted some instructions for setting up Avahi on Breezy, a fair number of people at UBZ did so. For most people this worked fine, but it seems that a few people’s systems started spewing a lot of network traffic.

It turns out that the problem was actually caused by the zeroconf package (which I did not suggest installing) rather than Avahi. The zeroconf package is not needed for service discovery or .local name lookup, so if you are at UBZ you should remove the package or suffer the wrath of Elmo.


  1. torkel
    Posted 3 November, 2005 at 10:01 am | Permalink

    What kind of traffic?

    Was it spewing a *lot* of ARP-requests by any chance? In that case I have been hit by it too ;-)


  2. Posted 3 November, 2005 at 10:17 am | Permalink

    I heard Gaim is avahi-enabled. Is that what you’re talking about using? Are there Ubuntu packages for this yet?

  3. Posted 3 November, 2005 at 10:57 am | Permalink

    I heard Gaim is avahi-enabled

    HEAD is, no released build is. Certainly not the current Ubuntu package.

    – Chris

  4. Posted 3 November, 2005 at 12:56 pm | Permalink

    torkel: yes, I think that is what was happenning. It looks like there is an updated version of the zeroconf package that fixes this, but it isn’t in Breezy.

  5. Posted 3 November, 2005 at 1:34 pm | Permalink

    Last check, gaim was not avahi enabled, but it does support the network-iChat stuff apple uses using Howl, and avahi svn (yet to be released as 0.6) features an API/ABI compatible layer for Howl (and bonjour) so you could use it with this.

  6. Posted 3 November, 2005 at 2:08 pm | Permalink

    This was found and fixed some time ago in zeroconf 0.3 (fixed on the 12th July — almost 4 months ago).

    Updated packages are already in Debian testing (i.e. Ubuntu Dapper) and everyone ought to be able to grab it and try it out.

  7. Posted 3 November, 2005 at 2:51 pm | Permalink

    What does zeroconf do that NetworkManager doesn’t do?

    Also, Gaim now supports the iChat protocol? That is pretty rad, when I tried it out some time ago it didn’t work.

  8. anti
    Posted 3 November, 2005 at 5:33 pm | Permalink

    Well, you indirectly did recommend to install zeroconf: The package is recommended by libnss-mdns which in turn was recommended by your post :-)

    So, if the package installer of choice is configured to install recommended packages (default for e.g. aptitude) – that’s why it was installed.

  9. Posted 4 November, 2005 at 2:31 am | Permalink

    Hi Anand,

    It looks like the release with the fix came out a little after the upstream version freeze for Breezy:


    Since this problem annoys network admins enough though, so the fix might be released for Breezy as an update or backport.

  10. torkel
    Posted 4 November, 2005 at 6:03 am | Permalink

    And it can also more or less bring down some routers… :-(