Instead of AES-256-CBC please set data-ciphers value supported by your OpenVPN server or OpenVPN service supplier. In the Terminal app please run the following command to edit the NetworkManager connection file: sudo nano /etc/NetworkManager/system-connections/*your_connection_name*.nmconnectionĮnter your password for your Ubuntu user when system will ask for it and press Enter (password or asterisks will not be displayed in the Terminal).Īdd the following line to the section : data-ciphers=AES-256-CBC Run the gnome-terminal: Press Alt-F2 on your keyboard type gnome-terminal and press Enter If your OpenVPN connection is not presented in the NetworkManager, you can create it using the "Import from file." menu item ( Settings-> Network -> VPN -> VPN + -> Import from file.) Your OpenVPN connection should be already presented in the VPN connections list in the Network manager. The idea is to put the required options manually, directly into the NetworkManager config file. It looks like NetworkManager doesn't read all options (like data-ciphers option) from the ovpn file. I have found a way to make it work without downgrading the OpenVPN version, using OpenVPN 2.6. Reinstall NetworkManager OpenVPN GUI: sudo apt install network-manager-openvpn-gnome ![]() Optional: mark OpenVPN not to update: sudo apt-mark hold openvpn Double-click on the file and open with Software Install (GUI).Download the openvpn_2.5.5-1ubuntu3_b file in the "Downloadable files" section.Uninstall the current OpenVPN version if installed: sudo apt remove openvpn Here are the steps, based on this answer, which also helped me a lot: The problem is that the old option is hardcoded in network-manager-openvpn, so rewriting to the new one won't work, except if you pass it using the command line.įor the time being, you should downgrade to OpenVPN 2.5.5. ![]() OpenVPN ignores -cipher for cipher negotiations. Ubuntu 22.10 updated to a newer version of OpenVPN (2.6), which doesn't support the cipher option, ignores it, and expects the newer data-ciphers option, as seen in your output here: 21:36:40 DEPRECATED OPTION: -cipher set to 'AES-256-CBC' but missing in -data-ciphers (AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305). This is caused by a bug in network-manager-openvpn. 21:36:58 SIGUSR1 received, process restarting 21:36:58 TCPv4_CLIENT link local: (not bound) 21:36:58 TCP connection established with :1194 21:36:58 Attempting to establish TCP connection with :1194 21:36:58 TCP/UDP: Preserving recently used remote address: :1194 21:36:53 SIGUSR1 received, process restarting 21:36:52 TCPv4_CLIENT link local: (not bound) 21:36:52 TCP connection established with :1194 21:36:52 Attempting to establish TCP connection with :1194 21:36:52 TCP/UDP: Preserving recently used remote address: :1194 21:36:47 SIGUSR1 received, process restarting 21:36:46 TCPv4_CLIENT link local: (not bound) 21:36:46 TCP connection established with :1194 21:36:46 Attempting to establish TCP connection with :1194 21:36:46 TCP/UDP: Preserving recently used remote address: :1194 21:36:41 SIGUSR1 received, process restarting 21:36:40 NOTE: UID/GID downgrade will be delayed because of -client, -pull, or -up-delay 21:36:40 TCPv4_CLIENT link local: (not bound) 21:36:40 TCP connection established with :1194 21:36:40 Attempting to establish TCP connection with :1194 21:36:40 TCP/UDP: Preserving recently used remote address: :1194 21:36:40 WARNING: this configuration may cache passwords in memory - use the auth-nocache option to prevent this 21:36:40 WARNING: file '/home/dyedfox/openvpn/auth.cfg' is group or others accessible 21:36:40 WARNING: file '/home/dyedfox/openvpn/keypass.cfg' is group or others accessible ![]() 21:36:40 WARNING: file '/home/dyedfox/openvpn/opvn-client1.p12' is group or others accessible Complete output: 21:36:40 DEPRECATED OPTION: -cipher set to 'AES-256-CBC' but missing in -data-ciphers (AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305). Would you please help me with this issue? Pkcs12 /home/dyedfox/openvpn/opvn-client1.p12Īuth-user-pass /home/dyedfox/openvpn/auth.cfgĪskpass /home/dyedfox/openvpn/keypass.cfg I tried to reinstall openvpn but it had not helped. 20:10:04 SIGUSR1 received, process restarting I constantly get an error: 20:10:04 TCPv4_CLIENT link remote: xx.:1194 After updating to Ubuntu 22.10, openvpn cannot connect to the server as a client using the same old working ovpn profile from Ubuntu 22.04 LTS.
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