[Users] networking with debian based templates
existx
existx at existx.net
Tue Jan 29 19:42:51 EST 2008
Hi,
My Host is CentOS 5.x. I also have
DEF_OSTEMPLATE="debian-4.0-i386-minimal" defined in /etc/vz/vz.conf
I can ping the Host Node's IP and the Host Node can ping the VM's IP
(both are public IP addresses) but I can't connect to the outside world.
There is one gentoo VM and one centos VM running with the same
configuration, but connecting to the outside world and allowing connections.
[root at elbrus ~]# cat /etc/sysctl.conf
# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and
# sysctl.conf(5) for more details.
# Controls IP packet forwarding
net.ipv4.ip_forward = 1
net.ipv4.conf.default.proxy_arp = 0
# Controls source route verification
net.ipv4.conf.all.rp_filter = 1
# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 1
# Controls whether core dumps will append the PID to the core filename
# Useful for debugging multi-threaded applications
kernel.core_uses_pid = 1
# we do not want all our interfaces to send redirects
net.ipv4.conf.default.send_redirects = 1
net.ipv4.conf.all.send_redirects = 0
[root at elbrus ~]#
Additionally, there's no iptables rules currently.
[root at elbrus ~]# iptables -nL
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[root at elbrus ~]#
Any ideas?
Thanks in advance!
albinootje wrote:
> existx at existx.net wrote:
>
> hi,
>
> > I'm trying to use the following templates:
> >
> > debian-4.0-i386-minimal
> ---cut for brevity---
> > venet0 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
> > inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0
Mask:255.255.255.255
> > UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
> > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:0
> > RX bytes:0 (0.0 b) TX bytes:588 (588.0 b)
> >
> > venet0:0 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
> > inet addr:public.ip.add.ress P-t-P:public.ip.add.ress
Bcast:0.0.0.0 Mask:255.255.255.255
> > UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
> >
> > Why does it create two venet0 interfaces with one being loopback and
one being my public IP address?
> >
> > Of course, there's no network connectivity with this setup.
>
> i'm using a self-build debian etch template on a debian etch machine,
> and i see the same thing, but it works without any problems since many
months
>
> i have : DEF_OSTEMPLATE="debian-4.0-i386-minimal"
> in /etc/vz/vz.conf
>
> i've edited /etc/sysctl.conf according to the OpenVZ-wiki
>
> and that's about it, works like a charm!
>
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