OpenVZ Virtuozzo Containers Wiki - User contributions [en]

User:Mstaaravin

2010-02-23T06:53:39Z

Mstaaravin:

{| border="0"
| [[File:Gardetux.jpeg]]
|Hi... 
My name is Carlos Miranda Molina, I am OpenVZ user and i use OpenVZ exclusively on Debian Systems. 
For contact me: debian [at] mstaaravin [dot] com [dot] ar 
|}

'''Interested links''' 
[http://mstaaravin.blogspot.com/ http://mstaaravin.blogspot.com/] My personal blog 
[http://www.cafelug.org.ar http://www.cafelug.org.ar] My LUG in Buenos Aires - Argentina

User:Mstaaravin

2010-02-23T06:38:21Z

Mstaaravin:

{| border="0"
| [[File:Gardetux.jpeg]]
|Hi... 
My name is Carlos Miranda Molina, I am OpenVZ user and i use OpenVZ exclusively on Debian Systems. 
For contact me: debian [at] mstaaravin [dot] com [dot] ar 
|}

'''Interested links''' 
[http://mstaaravin.blogpost.com http://mstaaravin.blogpost.com] My personal blog 
[http://www.cafelug.org.ar http://www.cafelug.org.ar] My LUG in Buenos Aires - Argentina

User:Mstaaravin

2010-02-23T06:37:44Z

Mstaaravin:

{| border="0"
| [[File:Gardetux.jpeg]]
|Hi... 
My name is Carlos Miranda Molina, I am OpenVZ user, i use OpenVZ exclusively on Debian Systems. 
For contact me: debian [at] mstaaravin [dot] com [dot] ar 
|}

'''Interested links''' 
[http://mstaaravin.blogpost.com http://mstaaravin.blogpost.com] My personal blog 
[http://www.cafelug.org.ar http://www.cafelug.org.ar] My LUG in Buenos Aires - Argentina

File:Gardetux.jpeg

2010-02-23T06:29:42Z

Mstaaravin: Gardetux is a logo of "Grupo de usuarios de Software Libre de Capital Federal" http://www.cafelug.org.ar/

Gardetux is a logo of "Grupo de usuarios de Software Libre de Capital Federal"
http://www.cafelug.org.ar/

User:Mstaaravin

2010-02-23T06:26:20Z

Mstaaravin:

Hi... 
My name is Carlos Miranda Molina, I am OpenVZ user, i use OpenVZ exclusively on Debian Systems. 
For contact me: debian [at] mstaaravin [dot] com [dot] ar 
 

[http://mstaaravin.blogpost.com mstaaravin.blogpost.com]

User:Mstaaravin

2010-02-23T06:23:18Z

Mstaaravin:

Hi... 
[http://mstaaravin.blogpost.com mstaaravin.blogpost.com]

User:Mstaaravin

2010-02-23T06:22:54Z

Mstaaravin: Created page with 'Hi... [http://mstaaravin.blogpost.com mstaaravin.blogpost.com]'

Hi...
[http://mstaaravin.blogpost.com mstaaravin.blogpost.com]

Disable venet interface

2010-02-23T06:20:15Z

Mstaaravin: add KISS (keep it simple stupid) configuration for Debian only

If you have configured [[veth]] correctly and want to get rid of [[venet]] interface modify ''/etc/init.d/vz'' following this step:

'''Note: In Debian systems (Ubuntu and more) for disable venet interface it's enough with the next second step'''(Comment line ''VZDEV=venet0'' (~ line 53).).'''
'''Don't forget edit (in Debian example) /etc/network/interface file in (/var/lib/vz/private/$VEID/ and remove venet configuration in that file'''

1. /etc/init.d/vz stop before going further.

2. Comment line ''VZDEV=venet0'' (~ line 53).

3. Replace line ''NET_MODULES="${VNET_MODULES} ${VETH_MODULES}"'' (~ line 67) with this block:

<code>
####################################
# Patch for disable venet interface
# Block 1
# 2009-10-29 Michael Plourde
###################################
NET_MODULES="${VETH_MODULES}"
if [ -n "${VZDEV}" ]
then
NET_MODULES="${NET_MODULES} ${VNET_MODULES}"
fi
####################################
# Patch for disable venet interface
# End Block 1
# 2009-10-29 Michael Plourde
###################################
</code>

4. In the start_net() function (~ line 306) find those lines:
<code>
__echo "Bringing up interface $VZDEV: "
ip link set $VZDEV up
print_result
ip addr add 0.0.0.0/0 dev $VZDEV
__echo "Configuring interface $VZDEV: "
sysctl -q -w net.ipv4.conf.$VZDEV.send_redirects=0
print_result
if [ "${IPV6}" = "yes" ]; then
__echo "Configuring ipv6 $VZDEV: "
# Fix me: ip addres should be generated
ip -6 addr add fe80::1/128 dev $VZDEV
print_result
fi
</code>

and add these block before:
<code>
####################################
# Patch for disable venet interface
# Block 2
# 2009-10-29 Michael Plourde
###################################
if [ -n "$VZDEV" ]
then
</code>
and this one after:
<code>
fi
####################################
# Patch for disable venet interface
# End Block 2
# 2009-10-29 Michael Plourde
###################################
</code>

The start_net function should look like this:
<source lang="bash">
start_net()
{
local mod

# load all kernel modules needed for VE networking
for mod in ${NET_MODULES}; do
modprobe ${mod} 2>/dev/null
done

if ip addr list | grep -q "venet0:.*UP" 2>/dev/null; then
return 0
fi

get_veinfo
if [ -z "$VEINFO" ]; then
return 0
fi
####################################
# Patch for disable venet interface
# Block 2
# 2009-10-29 Michael Plourde
###################################
if [ -n "$VZDEV" ]
then
__echo "Bringing up interface $VZDEV: "
ip link set $VZDEV up
print_result
ip addr add 0.0.0.0/0 dev $VZDEV
__echo "Configuring interface $VZDEV: "
sysctl -q -w net.ipv4.conf.$VZDEV.send_redirects=0
print_result
if [ "${IPV6}" = "yes" ]; then
__echo "Configuring ipv6 $VZDEV: "
# Fix me: ip addres should be generated
ip -6 addr add fe80::1/128 dev $VZDEV
print_result
fi
fi
####################################
# Patch for disable venet interface
# End Block 2
# 2009-10-29 Michael Plourde
###################################
}</source>

5. Modify the stop_net function (~ line 351) to look like this:

<source lang="bash">
stop_net()
{
local mod
####################################
# Patch for disable venet interface
# Block 3
# 2009-10-29 Michael Plourde
###################################
if [ -n "$VZDEV" ]
then
if ip addr list | grep -q "venet0:.*UP" 2>/dev/null; then
__echo "Bringing down interface $VZDEV: "
ip link set $VZDEV down
print_result
fi
fi
####################################
# Patch for disable venet interface
# End Block 3
# 2009-10-29 Michael Plourde
###################################
for mod in ${NET_MODULES}; do
/sbin/modprobe -r ${mod} > /dev/null 2>&1
done
}</source>

6. That's all. You can now start your VEs:''/etc/init.d/vz start''