OpenVPN webgui configuration fails on ARM

Aiakos · 18. Oktober 2015

Hey,

I set up OMV on my Raspberry Pi B+ using the RPi image 2.0.15 provided on Sourceforge and run an update/upgrade from the webgui. I also installed OpenVPN manually using apt-get install openvpn and the omv-extras package. The plugin is visible in the webgui, but when I try to apply the configuration (settings like hostname, default gateway etc...) the process takes forever and eventually results in an "communication error". Restarting OMV yields a message that there are still unapplied configuration changes.

I am still new to OMV. How can I verify that the installation of OpenVPN is okay and how can I investigate why the configuration via the webgui isn't working? Can you help me?

Best,
Aiakos

schera · 19. Oktober 2015

Same Problem here on OMV 1.xx.

schera · 19. Oktober 2015

Interesting:
In Overview (Services) i can see that openvpn is running but on the configuration page of plug in it shows "not activ".

Aiakos · 24. Oktober 2015

*push*

Aiakos · 24. Oktober 2015

I noticed that the CPU usage goes up to 100% and stays there once I click apply configuration changes...

shadowzero · 28. Oktober 2015

I am the owner of the openvpn plugin and I will take a look at this as soon as I can. I have the Rpi B+ so I will look at it when time permits.

tekkb · 31. Oktober 2015

Uh, you are probably getting s*** loads of errors. That may account for high cpu on the B+.

Give results of this just so we can see your logs files:

ls -la /var/log

Give this out of curiosity too:

df -h

tekkb · 31. Oktober 2015

See my recommendations on my last post on this thread.

Login prompt missing in GUI

flash memory plugin
increase percentage that a drive is full before notifications start (I use 90 percent)
rtc module
recommended he expand his root partition to take up the rest of the SD card

Aiakos · 31. Oktober 2015

Hi,

thanks for the responses! Here are the results of the commands you mentioned:

Code

root@raspberrypi:~# ls -la /var/log
total 2908
drwxr-xr-t 13 root root   1760 Dec 31 23:14 .
drwxr-xr-x 14 root root   4096 Nov 15  2015 ..
-rw-r--r--  1 root root      0 Jun 26  2015 alternatives.log
drwxr-xr-x  2 root root     80 Jun 26  2015 apt
-rw-r-----  1 root adm    2602 Dec 31 23:15 auth.log
-rw-r-----  1 root adm    2505 May  4  2015 auth.log.1
-rw-r-----  1 root adm     649 May  4  2015 auth.log.2.gz
-rw-r-----  1 root adm     649 May  4  2015 auth.log.3.gz
-rw-r-----  1 root adm     352 Nov 19 02:30 auth.log.4.gz
-rw-r-----  1 root adm    3764 Mar 31  2016 boot
-rw-r-----  1 root root   4872 Mar 31  2016 boot.0
-rw-r-----  1 root root   1501 Mar 31  2016 boot.1.gz
-rw-r-----  1 root root   1504 Mar 31  2016 boot.2.gz
-rw-r-----  1 root root   1504 Mar 31  2016 boot.3.gz
-rw-r-----  1 root root   1504 Mar 31  2016 boot.4.gz
-rw-r--r--  1 root root 287453 Jun 20  2014 bootstrap.log
-rw-rw----  1 root utmp      0 Jun 26  2015 btmp
-rw-rw----  1 root utmp      0 Jun 26  2015 btmp.1
drwxr-xr-x  2 root root    180 May  4  2015 ConsoleKit
drwxr-xr-x  2 root root    100 May  4  2015 cron-apt
-rw-r-----  1 root adm  993464 Dec 31 23:15 daemon.log
-rw-r-----  1 root adm  911910 May  4  2015 daemon.log.1
-rw-r-----  1 root adm   30520 May  4  2015 daemon.log.2.gz
-rw-r-----  1 root adm   30520 May  4  2015 daemon.log.3.gz
-rw-r-----  1 root adm   11213 Nov 19 02:30 daemon.log.4.gz
-rw-r-----  1 root adm    1669 Dec 31 23:15 debug
-rw-r-----  1 root adm    1484 Mar 31  2016 debug.1
-rw-r-----  1 root adm     470 Mar 31  2016 debug.2.gz
-rw-r-----  1 root adm     470 Mar 31  2016 debug.3.gz
-rw-r-----  1 root adm     501 Nov 19 02:30 debug.4.gz
-rw-r-----  1 root adm   13715 Mar 31  2016 dmesg
-rw-r-----  1 root adm   13715 Mar 31  2016 dmesg.0
-rw-r-----  1 root adm    5481 Mar 31  2016 dmesg.1.gz
-rw-r-----  1 root adm    5491 Mar 31  2016 dmesg.2.gz
-rw-r-----  1 root adm    5469 Mar 31  2016 dmesg.3.gz
-rw-r-----  1 root adm    5460 Mar 31  2016 dmesg.4.gz
-rw-r--r--  1 root root      0 Jun 26  2015 dpkg.log
-rw-r--r--  1 root root    657 May  4  2015 dpkg.log.1
-rw-r--r--  1 root root  24024 Jun 30  2014 faillog
-rw-r--r--  1 root root   1229 Jun 30  2014 fontconfig.log
drwxr-xr-x  2 root root     80 Jun 20  2014 fsck
-rw-r-----  1 root adm   43002 Dec 31 23:14 kern.log
-rw-r-----  1 root adm   21501 Mar 31  2016 kern.log.1
-rw-r-----  1 root adm    5789 Mar 31  2016 kern.log.2.gz
-rw-r-----  1 root adm    5789 Mar 31  2016 kern.log.3.gz
-rw-r-----  1 root adm    5891 Nov 19 02:25 kern.log.4.gz
-rw-rw-r--  1 root utmp 292292 Dec 31 23:15 lastlog
-rw-r-----  1 root adm       0 Jun 20  2014 lpr.log
-rw-r-----  1 root adm       0 Jun 20  2014 mail.err
-rw-r-----  1 root adm      73 May  4  2015 mail.info
-rw-r-----  1 root adm      73 May  4  2015 mail.info.1
-rw-r-----  1 root adm      73 May  4  2015 mail.log
-rw-r-----  1 root adm      73 May  4  2015 mail.log.1
-rw-r-----  1 root adm       0 Dec 15 07:18 mail.warn
-rw-r-----  1 root adm   21983 Dec 31 23:14 messages
-rw-r-----  1 root adm   22133 May  4  2015 messages.1
-rw-r-----  1 root adm    6097 May  4  2015 messages.2.gz
-rw-r-----  1 root adm    6097 May  4  2015 messages.3.gz
-rw-r-----  1 root adm    5766 Nov 19 02:30 messages.4.gz
-rw-r-----  1 root adm     482 Jun 30  2014 monit.log
drwxr-xr-x  2 root root    100 Jun 20  2014 news
drwxr-xr-x  2 root root    220 May  4  2015 nginx
drwxr-xr-x  2 ntp  ntp      40 May 18  2012 ntpstats
drwxr-xr-x  2 root root     40 Jun 28  2014 openmediavault
-rw-------  1 root root    362 Jun  1  2015 php5-fpm.log
-rw-------  1 root root    362 Mar 31  2016 php5-fpm.log.1
-rw-------  1 root root    219 Mar 31  2016 php5-fpm.log.2.gz
-rw-------  1 root root    219 Mar 31  2016 php5-fpm.log.3.gz
-rw-------  1 root root    219 Mar 31  2016 php5-fpm.log.4.gz
drwxr-xr-x  2 root root    120 Dec 15 07:18 proftpd
-rw-r--r--  1 root root    158 Jun 30  2014 regen_ssh_keys.log
-rw-r-----  1 root adm       0 Jun 30  2014 rsyncd.log
drwxr-x---  3 root adm     160 Dec 15 07:18 samba
-rw-r-----  1 root adm       0 Jun 30  2014 smartd.log
-rw-r-----  1 root adm  116429 Dec 31 23:15 syslog
-rw-r-----  1 root adm   35121 May  4  2015 syslog.1
-rw-r-----  1 root adm    7928 May  4  2015 syslog.2.gz
-rw-r-----  1 root adm    7928 May  4  2015 syslog.3.gz
-rw-r-----  1 root adm   16210 Nov 19 02:30 syslog.4.gz
-rw-------  1 root root  63936 Nov 15  2015 tallylog
-rw-r-----  1 root adm    1637 Oct 17  2015 user.log
-rw-r-----  1 root adm    1637 Oct 17  2015 user.log.1
-rw-r-----  1 root adm     621 Oct 17  2015 user.log.2.gz
-rw-r-----  1 root adm     621 Oct 17  2015 user.log.3.gz
-rw-r-----  1 root adm      88 Jun 26  2015 user.log.4.gz
drwxr-xr-x  2 root root     40 Apr 28  2012 watchdog
-rw-rw-r--  1 root utmp  28800 Dec 31 23:15 wtmp
-rw-rw-r--  1 root utmp  23040 Mar 31  2016 wtmp.1

Alles anzeigen

Code

root@raspberrypi:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       3.2G  1.5G  1.6G  48% /
devtmpfs        237M     0  237M   0% /dev
tmpfs            49M  280K   48M   1% /run
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs            97M     0   97M   0% /run/shm
/dev/mmcblk0p1   56M   20M   37M  36% /boot
/dev/mmcblk0p3   25G  2.8M   24G   1% /media/fa36508a-b3c4-4499-b30a-711dd5994225
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/lib/monit
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/lib/openmediavault/rrd
folder2ram      242M  376K  241M   1% /var/lib/openmediavault/rrd
folder2ram      242M  8.0K  242M   1% /var/lib/monit
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/lib/php5
folder2ram      242M     0  242M   0% /var/lib/php5
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/lib/rrdcached
folder2ram      242M   14M  228M   6% /var/lib/rrdcached
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/log
folder2ram      242M  4.0M  238M   2% /var/log
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/spool
folder2ram      242M  1.4M  240M   1% /var/spool
/dev/root       3.2G  1.5G  1.6G  48% /var/folder2ram/var/tmp
folder2ram      242M     0  242M   0% /var/tmp

Alles anzeigen

Regarding your hints about the sd card: Since I use the RaspberryPi image mentioned above, the flash plugin is installed already and there is a data partition which covers the remaining space of the card.

Best,
Aiakos

tekkb · 31. Oktober 2015

You are right. The flash plugin is in the image. The 2nd partition on the SD card is mounted so there will not be errors. When OMV does not have a data drive or a data partition mounted it will throws errors. Once you have another drive mounted you can unmount that partition, delete it and then extend the root partition if you want. The root partition on the image is pretty small for OMV in my opinion.

Anyway, the links on the other thread will give you some stuff to read.

Aiakos · 31. Oktober 2015

Okay, I see. But how is this related to the OpenVPN problem?

tekkb · 1. November 2015

It is a weak cpu. If it is constantly writing to error logs you will get high cpu. So not related to openvpn. Show your vpn settings.

Aiakos · 1. November 2015

As I said, I started with a new installation from the image. Then I installed OpenVPN like I explained in my post above. I am not sure if I haven't made any mistakes there already. However, after that, I changed some settings in the GUI (please find the pictures attached which show how the GUI looks like). Since then I am not able to apply those changes.

tekkb · 1. November 2015

Your server settings are bad. I am not home. I'll try to give you an example of the settings later.

tekkb · 3. November 2015

Here are things I see in my config that vary from yours:

In General Settings I have a check mark in PAM Authentication
In VPN Network I have check mark in Default Gateway
In DHCP options I put in the router ip for DNS Server
I don't see your public section but in that field I put my DDNS address that I setup with DynDNS.

Aiakos · 4. November 2015

I tried the settings like you recommend them. No change in behavior - I still can't apply the settings.

tekkb · 4. November 2015

Give me screen shot of your settings... It may take 2 pictures.

Aiakos · 7. November 2015

These are my settings right now. I blurred my IP - it should be alright.

tekkb · 7. November 2015

Same settings I have on my RPi 2. I am using Kralizec though. Hmmm...

Give results of this:
apt-cache policy openvpn

Aiakos · 8. November 2015

I think first of all we should make sure that OpenVPN is installed correctly and that the connection to the gui / plugin works...

This is the result:

Code

root@raspberrypi:~# apt-cache policy openvpn
openvpn:
  Installed: 2.2.1-8+deb7u3
  Candidate: 2.2.1-8+deb7u3
  Version table:
 *** 2.2.1-8+deb7u3 0
        500 http://mirrordirector.raspbian.org/raspbian/ wheezy/main armhf Packages
        100 /var/lib/dpkg/status

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