[ale] tun on Ubuntu

[Jim]

PairOfTwins wrote:
> Anyone:
>
> In setting up Hamachi on Ubuntu Feisty AMD64, I hit an unexpected snag:  
> "tuncfg" won't run.
>
> See below, where I see tun was already configured, the module is loaded, 
> I added tun to the aliases file, and even (later) made tuncfg 
> world-readable AND world-executable.  Still, tuncfg responds "No such 
> file or directory" .  What's next?  Maybe tuncfg is a 32-bit version?
>
> tom at dare:~$ ls -l /dev/net
> total 0
> crw-rw---- 1 root root 10, 200 2007-04-29 16:48 tun
>
> tom at dare:~$ lsmod | grep tun
> tun                    13824  0
>
> tom at dare:~$ cat /etc/modprobe.d/aliases | grep tun
> alias char-major-10-200 tun
> alias xfrm-type-2-4 xfrm4_tunnel
> alias xfrm-type-10-41 xfrm6_tunnel
> alias tunl0 ipip
>
> tom at dare:~$ which tuncfg
> tom at dare:~$ sudo which tuncfg
> /sbin/tuncfg
>
> tom at dare:~$ sudo tuncfg
> sudo: unable to execute /sbin/tuncfg: No such file or directory
>   
Just a guess, but take a look at the file.  It may be a script and the 
utility to execute it may not exist.

file /sbin/tuncfg

and

head /sbin/tuncfg

Jim.
> tom at dare:~$ sudo echo 1 > /proc/sys/net/ipv4/ip_forward
> bash: /proc/sys/net/ipv4/ip_forward: Permission denied
>
> tom at dare:~$ sudo ls -l /sbin/tun*
> -rwxr--r-- 1 root root  9248 2007-05-18 10:48 /sbin/tuncfg
> -rwxr-xr-x 3 root root 24544 2007-03-28 09:47 /sbin/tune2fs
>
> tom at dare:/sbin$ sudo ldd tuncfg
>         not a dynamic executable
>
>
> Thanks!
> Tom
>
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