Communication problems with internal resources when connecting via OpenVPN after update 2023-02-03

I started having problems connecting to internal company resources after the last OS update. The system is not resolving internal servers names. Here are my diagnostics:

~ nslookup gitl.ym-dev.tech                                        
;; communications error to 192.168.199.81#53: timed out
;; communications error to 192.168.199.81#53: timed out
;; communications error to 192.168.199.81#53: timed out
;; communications error to 192.168.199.82#53: timed out
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	gitl.ym-dev.tech
Address: 28.202.85.11

### The internal ip-address of gitl.ym-dev.tech is 192.168.199.54

~ telnet 192.168.199.81 53                                20s
Trying 192.168.199.81...
Connected to 192.168.199.81.
Escape character is '^]'.
^]
telnet> quit
Connection closed.

~ telnet 192.168.199.82 53                                 6s
Trying 192.168.199.82...
Connected to 192.168.199.82.
Escape character is '^]'.
^]
telnet> quit
Connection closed.

~ cat /etc/resolv.conf
# Generated by NetworkManager
search wt.net wb.com
nameserver 192.168.199.81
nameserver 192.168.199.82
nameserver 1.1.1.1
# NOTE: the libc resolver may not support more than 3 nameservers.
# The nameservers listed below may not be recognized.
nameserver 8.8.8.8

~ routel                                                    3s
Dst             Gateway         Prefsrc         Protocol Scope   Dev              Table
default         192.168.71.1    192.168.71.252  dhcp             wlp9s0           
10.9.1.1        10.9.1.249                      static           tun0             
10.9.1.249                      10.9.1.250      kernel   link    tun0             
10.10.0.0/16    10.9.1.249                      static           tun0             
10.11.0.0/16    10.9.1.249                      static           tun0             
10.12.0.0/16    10.9.1.249                      static           tun0             
10.13.0.0/16    10.9.1.249                      static           tun0             
10.14.0.0/16    10.9.1.249                      static           tun0             
10.15.0.0/16    10.9.1.249                      static           tun0             
10.38.78.0/24   10.9.1.249                      static           tun0             
10.60.147.0/24  10.9.1.249                      static           tun0             
10.70.68.0/24   10.9.1.249                      static           tun0             
10.99.90.0/24   10.9.1.249                      static           tun0             
10.104.14.0/24  10.9.1.249                      static           tun0             
10.169.217.0/24 10.9.1.249                      static           tun0             
10.176.104.0/24 10.9.1.249                      static           tun0             
10.178.210.0/24 10.9.1.249                      static           tun0             
28.202.85.43    192.168.71.1                    static           wlp9s0           
192.168.71.0/24                 192.168.71.252  kernel   link    wlp9s0           
192.168.71.1                                    static   link    wlp9s0           
192.168.198.0/24 10.9.1.249                     static           tun0             
192.168.199.0/24 10.9.1.249                     static           tun0             
10.9.1.250                      10.9.1.250      kernel   host    tun0             local
127.0.0.0/8                     127.0.0.1       kernel   host    lo               local
127.0.0.1                       127.0.0.1       kernel   host    lo               local
127.255.255.255                 127.0.0.1       kernel   link    lo               local
192.168.71.252                  192.168.71.252  kernel   host    wlp9s0           local
192.168.71.255                  192.168.71.252  kernel   link    wlp9s0           local

Before the update, everything was working fine.
No changes were made by me or the vpn-gateway admins.

This Update included the update to OpenVPN 2.6. Since the numerous changes between 2.5 and 2.6, you should get in touch with your company’s IT department resolve this.

1 Like

Older packages can be found here: Index of /packages/o/openvpn/ If needed add the package to the ignore list. There can be a regression in the new version.

2 Likes

Thanks, guys! Reinstalling to the old version helped.

I had to remove the “openvpn” file that was hidden in /usr/local/sbin/, because despite the uninstallation of openvpn it was as if it was installed and working in version 2.6, and the way with the older version works. I join the thanks.

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