Hi list,
responding for the archives.
Several parallel issues (as ever) lead to the behaviour I faced with.
DNS requests were rejected, IMAP and HTTP requests also.
DNS and IMAP were responsive from localhost, http not ... humm.
The main problem has been solved by setting a 0 for alle entries
of /proc/sys/net/bridge/bridge-nf-call-*
The problem with IMAP was a DNS issue, in not resolving the correct
sub-sub-domain, redirecting the requests to our main internet-server
(because of the tld); Fixed with corrected dns-entries for bind9.
The next issue was, that the webserver was rejecting any connection
attempt, also a localhost connection could not be established.
Found out, that it listens only to ipv6-addresses, editing the
apache.conf to Listen 0.0.0.0:80 resolved this problem. (There was no
Listen directive at all for the apache2 config, so arp did a guess)
Have a nice week :-D
Am 26.06.2011 15:46, schrieb Markus Plessing:> Hi list,
>
> i''ve been migrating our RAID1 system onto bigger drives. Therefor
I''ve
> setup a new dom0 with a 2.6.32-5-xen-amd64 kernel and Xen in version
> 4.0, because there was a 2.6.19 kernel and xen 3.0.1 causing problems
> time by time.
>
> My main problem is, that the domU running our intranet services
> (webserver, mail, databases etc) is not responding or rejecting each
> attempt to connect to a service.
>
> I think that the root cause of the problem is located in the network
> bridge settings from xen in dom0. Maybe someone can give me a kick in
> the right direction to get these things up and running until the doors
> are opened again :-)
>
> As network option I''ve choosen (network-script network-bridge) and
> (vif-script vif-bridge) leading to the following outputs.
>
> $# brctl show
> bridge name bridge id STP enabled interfaces
> eth0 8000.00241d89463a no peth0
> vif1.0
> vif2.0
> vif3.0
> vif4.0
> vif5.0
> $# iptables -L -v : http://paste.debian.net/121061/
>
>
> $# ifconfig : http://paste.debian.net/121060/
>
> Many thanks for each hint :)
>
> Bye
>
> Markus
>
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