problem to set up vpn in my openvz vps.

DannyAlex

@guyusoftware I am afraid it could be an kernel related issue.

Wintereise

Are you sure that the iptable_nat module is listed in your /etc/vz/vz.conf?

Something to check.

guyusoftware

@DannyAlex I am also afraid that if there is an issue related to ovzkernel. Fortunately, there only occur vpn problem.
@Wintereise already in it.

SpeedBus

Do you have the PPP kernel module enabled on the host node ? There's a guide to do it on the openvz wiki.

guyusoftware

@SpeedBus Already enabled. Everything settings seem alright now but also has problem.

[root@test ~]# cat /dev/net/tun
cat: /dev/net/tun: File descriptor in bad state
[root@test ~]# cat /dev/ppp
cat: /dev/ppp: No such device or address

Wintereise

sudo mknod /dev/ppp c 108 0
sudo chmod 600 /dev/ppp

Run those two commands on the CT to create the PPP device, it's not magically created.

guyusoftware

@Wintereise already....

Maounique

There are a few scripts floating around to setup those VPNs on OVZ.
You may wish to look at one of them to see what it does.

Wintereise

If those commands were run, something would at least exist at /dev/ppp.

You're doing something wrong. What that is, well, rather hard to say without having any idea.

SpeedBus

@guyusoftware said: @SpeedBus Already enabled. Everything settings seem alright now but also has problem.

[root@test ~]# cat /dev/net/tun

cat: /dev/net/tun: File descriptor in bad state
[root@test ~]# cat /dev/ppp
cat: /dev/ppp: No such device or address

Tun is enabled, PPP is not.
They both are different, Tun = OpenVPN and PPP = PPTP.

Try This,
On Host Node,

modprobe ppp_async
modprobe ppp_deflate
modprobe ppp_mppe

Then,

lsmod | grep ppp

You should see the following (in any order is okay)

ppp_mppe                6420  2
ppp_deflate             9793  2
zlib_deflate           21977  1 ppp_deflate
ppp_async              15169  1
crc_ccitt               6337  1 ppp_async
ppp_generic            30165  6 ppp_deflate,ppp_async
slhc                   10561  1 ppp_generic

After which (One by One, In order)

vzctl set [VEnumber] --features ppp:on --save
vzctl start [VEnumber]
vzctl set [VEnumber] --devices c:108:0:rw --save
vzctl exec [VEnumber] mknod /dev/ppp c 108 0
vzctl exec [VEnumber] chmod 600 /dev/ppp

Now to see if it works,

vzctl enter [VEnumber] 

Then,

/usr/sbin/pppd

You'll see some text like,

~�}#�!}!}!} }4}"}&} } } } }%}&)Q�}4}'}"}(}"p})

This will go on for about 30 seconds and then you will be returned to a command prompt. If there is an error message instead, something went wrong.

guyusoftware

@SpeedBus Thanks a lot. Okay now.

SpeedBus

@guyusoftware said: @SpeedBus Thanks a lot. Okay now.

No probs