Virtual Dedicated Server has not /dev/net - Problem withOpenVPNdev/net/tun
Mike Garfias
mike at garfias.org
Mon Aug 4 18:44:58 MST 2008
Bryan -
I'd look at the lack of the tun driver as your first culprit. Build a
kernel if you need to, but I do think you need the driver installed to
use ovpn.
Mike
On Aug 4, 2008, at 5:44 PM, Bryan O'Neal wrote:
> Sorry if I am spamming the list, but I have a deadline with emphasis
> on
> the dead.
>
> Ok, so I tried this
> mkdir -p /dev/net
> mknod /dev/net/tun c 10 200
>
> But was now greeted with
> Mon Aug 4 17:38:42 2008 OPTIONS IMPORT: route options modified
> Mon Aug 4 17:38:42 2008 Note: Cannot open TUN/TAP dev /dev/net/tun:
> Permission denied (errno=13)
> Mon Aug 4 17:38:42 2008 Note: Attempting fallback to kernel 2.2 TUN/
> TAP
> interface
> Mon Aug 4 17:38:42 2008 Cannot allocate TUN/TAP dev dynamically
> Mon Aug 4 17:38:42 2008 Exiting
>
> So I tried (out of desperation) mknod -m 777 /dev/net/tun c 10 200 But
> was greeted with the same error
>
>
> -----Original Message-----
> From: plug-discuss-bounces at lists.plug.phoenix.az.us
> [mailto:plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf Of
> Bryan O'Neal
> Sent: Monday, August 04, 2008 5:28 PM
> To: Main PLUG discussion list; Arizona State University Linux Users
> Group
> Subject: RE: Virtual Dedicated Server has not /dev/net - Problem
> withOpenVPNdev/net/tun
>
> For got to mention
>
> [root]# modprobe tun
> FATAL: Could not load /lib/modules/2.6.9-023stab044.4-smp/modules.dep:
> No such file or directory
>
> -----Original Message-----
> From: plug-discuss-bounces at lists.plug.phoenix.az.us
> [mailto:plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf Of
> Bryan O'Neal
> Sent: Monday, August 04, 2008 5:21 PM
> To: Main PLUG discussion list; Arizona State University Linux Users
> Group
> Subject: Virtual Dedicated Server has not /dev/net - Problem with
> OpenVPNdev/net/tun
>
> If some one could please help me set up OpenVPN on a virtual dedicated
> server I would be most appreciative.
>
> Set up:
> I am trying to set up a vpn using OpenVPN between a couple of virtual
> boxes, thus making it really easy for me to set up some "hidden"
> services and link all of my systems together in a secure and encrypted
> fashion. I can not really do this using SSH Tunnels as the tunnels
> collapse regularly and I would need something that will keep them
> alive
> and reconstruct them on the fly for the applications behind them.
> Hence
> the VPN. However when I start OpenVPN with a simple client conf I get
> the following
> ...
> Mon Aug 4 17:16:26 2008 PUSH: Received control message:
> 'PUSH_REPLY,route 10.8.10.1,ping 10,ping-restart 120,ifconfig
> 10.8.10.10
> 10.8.10.9'
> Mon Aug 4 17:16:26 2008 OPTIONS IMPORT: timers and/or timeouts
> modified
> Mon Aug 4 17:16:26 2008 OPTIONS IMPORT: --ifconfig/up options
> modified
> Mon Aug 4 17:16:26 2008 OPTIONS IMPORT: route options modified
> Mon Aug 4 17:16:26 2008 Note: Cannot open TUN/TAP dev /dev/net/tun:
> No
> such file or directory (errno=2)
> Mon Aug 4 17:16:26 2008 Note: Attempting fallback to kernel 2.2 TUN/
> TAP
> interface
> Mon Aug 4 17:16:26 2008 Cannot allocate TUN/TAP dev dynamically
> Mon Aug 4 17:16:26 2008 Exiting
>
> Environment & Problem:
> I am using a mix of GoDaddy dedicated servers and virtual dedicated
> servers. The dedicated ones have no problem, but the virtual
> dedicated
> one toss a Cannot open TUN/TAP dev /dev/net/tun: No such file or
> directory (errno=2) error.
> Further information.
> I have /usr/include/linux/if_tun.h but can not mknod /dev/net/tun c 10
> 200 because /dev/net does not exist.
>
> Comand output:
> [root]# mknod /dev/net/tun c 10 200
> mknod: `/dev/net/tun': No such file or directory
>
> [root] # ls -Cl /dev
> total 4
> crw-rw-rw- 1 root root 5, 1 Apr 13 2006 console
> crw------- 1 root root 1, 6 Apr 13 2006 core
> lrwxrwxrwx 1 root root 13 Nov 14 2007 fd -> /proc/self/fd
> crw-rw-rw- 1 root root 1, 7 Apr 13 2006 full
> prw------- 1 root root 0 Nov 14 2007 initctl
> crw-r----- 1 root kmem 1, 2 Apr 13 2006 kmem
> crw------- 1 root root 1, 11 Apr 13 2006 kmsg
> srw-rw-rw- 1 root root 0 Jul 31 14:49 log
> drwxr-xr-x 2 root root 4096 Nov 14 2007 mapper
> crw-r----- 1 root kmem 1, 1 Apr 13 2006 mem
> crw-rw-rw- 1 root root 1, 3 Apr 13 2006 null
> crw-r----- 1 root kmem 1, 4 Apr 13 2006 port
> crw-rw-rw- 1 root root 5, 2 Apr 13 2006 ptmx
> drwxr-xr-x 2 root root 0 Jul 31 14:49 pts
> crw-rw-rw- 1 root tty 2, 176 Apr 13 2006 ptya0
> crw-rw-rw- 1 root tty 2, 177 Apr 13 2006 ptya1
> crw-rw-rw- 1 root tty 2, 178 Apr 13 2006 ptya2
> crw-rw-rw- 1 root tty 2, 179 Apr 13 2006 ptya3
> crw-rw-rw- 1 root tty 2, 180 Apr 13 2006 ptya4
> crw-rw-rw- 1 root tty 2, 181 Apr 13 2006 ptya5
> crw-rw-rw- 1 root tty 2, 182 Apr 13 2006 ptya6
> crw-rw-rw- 1 root tty 2, 183 Apr 13 2006 ptya7
> crw-rw-rw- 1 root tty 2, 184 Apr 13 2006 ptya8
> crw-rw-rw- 1 root tty 2, 185 Apr 13 2006 ptya9
> crw-rw-rw- 1 root tty 2, 186 Apr 13 2006 ptyaa
> crw-rw-rw- 1 root tty 2, 187 Apr 13 2006 ptyab
> crw-rw-rw- 1 root tty 2, 188 Apr 13 2006 ptyac
> crw-rw-rw- 1 root tty 2, 189 Apr 13 2006 ptyad
> crw-rw-rw- 1 root tty 2, 190 Apr 13 2006 ptyae
> crw-rw-rw- 1 root tty 2, 191 Apr 13 2006 ptyaf
> crw-rw-rw- 1 root tty 2, 0 Apr 13 2006 ptyp0
> crw-rw-rw- 1 root tty 2, 1 Apr 13 2006 ptyp1
> crw-rw-rw- 1 root tty 2, 2 Apr 13 2006 ptyp2
> crw-rw-rw- 1 root tty 2, 3 Apr 13 2006 ptyp3
> crw-rw-rw- 1 root tty 2, 4 Apr 13 2006 ptyp4
> crw-rw-rw- 1 root tty 2, 5 Apr 13 2006 ptyp5
> crw-rw-rw- 1 root tty 2, 6 Apr 13 2006 ptyp6
> crw-rw-rw- 1 root tty 2, 7 Apr 13 2006 ptyp7
> lrwxrwxrwx 1 root root 4 Nov 14 2007 ram -> ram1
> brw-r----- 1 root disk 1, 0 Apr 13 2006 ram0
> brw-r----- 1 root disk 1, 1 Apr 13 2006 ram1
> lrwxrwxrwx 1 root root 4 Nov 14 2007 ramdisk -> ram0
> crw-r--r-- 1 root root 1, 8 Apr 13 2006 random
> lrwxrwxrwx 1 root root 15 Nov 14 2007 stderr -> /proc/self/fd/2
> lrwxrwxrwx 1 root root 15 Nov 14 2007 stdin -> /proc/self/fd/0
> lrwxrwxrwx 1 root root 15 Nov 14 2007 stdout -> /proc/self/fd/1
> crw-rw-rw- 1 root root 5, 0 Apr 13 2006 tty
> crw-rw-rw- 1 root tty 3, 176 Apr 13 2006 ttya0
> crw-rw-rw- 1 root tty 3, 177 Apr 13 2006 ttya1
> crw-rw-rw- 1 root tty 3, 178 Apr 13 2006 ttya2
> crw-rw-rw- 1 root tty 3, 179 Apr 13 2006 ttya3
> crw-rw-rw- 1 root tty 3, 180 Apr 13 2006 ttya4
> crw-rw-rw- 1 root tty 3, 181 Apr 13 2006 ttya5
> crw-rw-rw- 1 root tty 3, 182 Apr 13 2006 ttya6
> crw-rw-rw- 1 root tty 3, 183 Apr 13 2006 ttya7
> crw-rw-rw- 1 root tty 3, 184 Apr 13 2006 ttya8
> crw-rw-rw- 1 root tty 3, 185 Apr 13 2006 ttya9
> crw-rw-rw- 1 root tty 3, 186 Apr 13 2006 ttyaa
> crw-rw-rw- 1 root tty 3, 187 Apr 13 2006 ttyab
> crw-rw-rw- 1 root tty 3, 188 Apr 13 2006 ttyac
> crw-rw-rw- 1 root tty 3, 189 Apr 13 2006 ttyad
> crw-rw-rw- 1 root tty 3, 190 Apr 13 2006 ttyae
> crw-rw-rw- 1 root tty 3, 191 Apr 13 2006 ttyaf
> crw-rw-rw- 1 root tty 3, 0 Apr 13 2006 ttyp0
> crw-rw-rw- 1 root tty 3, 1 Apr 13 2006 ttyp1
> crw-rw-rw- 1 root tty 3, 2 Apr 13 2006 ttyp2
> crw-rw-rw- 1 root tty 3, 3 Apr 13 2006 ttyp3
> crw-rw-rw- 1 root tty 3, 4 Apr 13 2006 ttyp4
> crw-rw-rw- 1 root tty 3, 5 Apr 13 2006 ttyp5
> crw-rw-rw- 1 root tty 3, 6 Apr 13 2006 ttyp6
> crw-rw-rw- 1 root tty 3, 7 Apr 13 2006 ttyp7
> crw-r--r-- 1 root root 1, 9 Apr 13 2006 urandom
> b-----x--- 1 root root 0, 95 Jul 31 14:49 vzfs
> crw-rw-rw- 1 root root 1, 5 Apr 13 2006 zero
>
> [root]# ifconfig
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:14825029307203600730 errors:0 dropped:0 overruns:0
> frame:0
> TX packets:4058748698058821372 errors:0 dropped:0 overruns:0
> carrier:0
> collisions:0 txqueuelen:0
> RX bytes:13251200723625487031 (0.2 EiB) TX
> bytes:15768793109323323431 (0.8 EiB)
>
> 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:324232 errors:0 dropped:0 overruns:0 frame:0
> TX packets:212072 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:421828895 (402.2 MiB) TX bytes:20816486 (19.8 MiB)
>
> venet0:0 Link encap:UNSPEC HWaddr
> 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
> inet addr:72.167.31.157 P-t-P:72.167.31.157
> Bcast:72.167.31.157 Mask:255.255.255.255
> UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
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