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Problem with OpenVPN in VE [message #28104] Sat, 08 March 2008 17:55 Go to next message
mperkel is currently offline  mperkel
Messages: 253
Registered: December 2006
Senior Member
I can't seem to get OpenVPN to work under OpenVZ. I get this error in the logs.

Sat Mar 8 09:53:25 2008 us=186253 OpenVPN 2.1_rc4 x86_64-redhat-linux-gnu [SSL] [LZO2] [EPOLL] built on Apr 26 2007
Sat Mar 8 09:53:25 2008 us=188675 Diffie-Hellman initialized with 1024 bit key
Sat Mar 8 09:53:25 2008 us=189009 WARNING: file 'server.key' is group or others accessible
Sat Mar 8 09:53:25 2008 us=189293 TLS-Auth MTU parms [ L:1544 D:140 EF:40 EB:0 ET:0 EL:0 ]
Sat Mar 8 09:53:25 2008 us=189560 TUN/TAP device tun0 opened
Sat Mar 8 09:53:25 2008 us=189589 Note: Cannot set tx queue length on tun0: Operation not permitted (errno=1)
Sat Mar 8 09:53:25 2008 us=189615 /sbin/ip link set dev tun0 up mtu 1500
SIOCSIFMTU: No such device
Sat Mar 8 09:53:25 2008 us=193366 Linux ip link set failed: shell command exited with error status: 255
Sat Mar 8 09:53:25 2008 us=193407 Exiting

I know nothing about OpenVPN. This is for someone else's use. hoping for a quick and easy fix.


Re: Problem with OpenVPN in VE [message #28106 is a reply to message #28104] Sat, 08 March 2008 20:08 Go to previous messageGo to next message
mperkel is currently offline  mperkel
Messages: 253
Registered: December 2006
Senior Member
Also - I'm running the new 2.6.24 kernel and openvpn does work in the host environment.


Re: Problem with OpenVPN in VE [message #28139 is a reply to message #28106] Mon, 10 March 2008 13:04 Go to previous messageGo to next message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
Hi,

1. Are there another error messages or something?
2. What parameters do you use to start openvpn?

P.S. I suppose you've read this article
http://wiki.openvz.org/VPN_via_the_TUN/TAP_device
P.P.S. Actually I also know not so much about OpenVPN
Re: Problem with OpenVPN in VE [message #28200 is a reply to message #28104] Tue, 11 March 2008 15:00 Go to previous messageGo to next message
lystor is currently offline  lystor
Messages: 4
Registered: December 2007
Location: Donetsk
Junior Member

Quote:

Sat Mar 8 09:53:25 2008 us=189589 Note: Cannot set tx queue length on tun0: Operation not permitted (errno=1)

1. Create in VE device /dev/net/tun
# ls -l /dev/net/tun
crw------- 1 root root 10, 200 Feb 20 10:38 /dev/net/tun

2. Add to VE config file:
DEVICES="c:10:200:rw "

3. Restart VE


OS: ASPLinux Server 5, ASPLinux 12
Re: Problem with OpenVPN in VE [message #28225 is a reply to message #28200] Wed, 12 March 2008 07:40 Go to previous message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
Hi,

you need CAP_NET_ADMIN capability inside VE.
vzctl set VEID --capability net_admin:on --save
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