forwarded 597876 http://bugzilla.openvz.org/show_bug.cgi?id=1659
thanks
Hi Daniel
Thanks a lot for the report. I will look into this shortly.
Best regards,
// Ola
On Thu, Sep 23, 2010 at 09:17:56PM +0200, Daniel Hahler wrote:
> Package: vzctl
> Severity: important
> Tags: patch
>
> debian/patches/debian-add-ip.patch adds a gateway entry to every
> static(?) stanza in the interfaces file.
>
> This caused weird issues on containers with multiple IP addresses being
> defined (e.g. an internal one and an external one).
>
> What happened was that the interface being used for outgoing connections
> (the route) got picked up at random (and then got cached for some time).
>
> I do not have the history for debugging this anymore though (because of
> HISTFILE=/dev/null, another bug), but it was easily reproducible by
> clearing the routing cache and then picking and displaying a route:
>
> ip route flush cache ; ip route get 8.8.8.8
>
> Looking at the "src" value, this appeared to be random (but has been
> kept until clearing the cache, or/and some timeout).
>
> ------------------------------------------------------------
> +create_config_has_gateway= # only add a single gateway line
> function create_config()
> {
> local ip=$1
> @@ -95,9 +110,12 @@
> iface ${VENET_DEV}:${ifnum} inet static
> address ${ip}
> netmask 255.255.255.255
> - broadcast 0.0.0.0
> - gateway ${FAKEGATEWAY}
> -" >> ${CFGFILE}.bak
> + broadcast 0.0.0.0" >> ${CFGFILE}.bak
> + if [ -z $create_config_has_gateway ]; then
> + echo " gateway ${FAKEGATEWAY}" >> ${CFGFILE}.bak
> + create_config_has_gateway=1
> + fi
> + echo >> ${CFGFILE}.bak
> ------------------------------------------------------------
>
> This can cause major problems when using e.g. MySQL authentication and
> only accepting logins from local addressed (which ich common practice).
>
>
>
--
--------------------- Ola Lundqvist ---------------------------
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| o...@inguza.com 654 65 KARLSTAD |
| http://inguza.com/ +46 (0)70-332 1551 |
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