This doesn't directly answer your question but we have done what you are about to do and didn't have any problems. In our situation OpenVPN ran on a VM so we did a backup of the image beforehand. Ubuntu is pretty good about not replacing configuration files with customizations without prompting first. A tar of /etc/openvpn would be a good idea. If you're concerned about uninterrupted operation I don't know that there's much you can do. Might be time to set up a backup system and plan a time/pay the price for a couple of two-minute outages at an opportune time.
-----Original Message----- From: Bo Berglund <bo.bergl...@gmail.com> To: openvpn-users@lists.sourceforge.net Sent: Mon, Feb 7, 2022 6:46 am Subject: [Openvpn-users] Check how openvpn was installed on Ubuntu? I have an OpenVPN server running on an Ubuntu Server 18.04 LTS and it is due for release-upgrade. The installation of OpenVPN was originally done back in 2017 on the 16.04 LTS version. Now I do not remember *how* it was installed, if I just used apt install openvpn like I do nowadays or if I first added the OpenVPN repositories to apt... Any customizations of apt sources will be overwritten bya a release-upgrade so I need to figure this out before the upgrade can be done. I check like this: $ openvpn --version OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Feb 19 2019 library versions: OpenSSL 1.0.2n 7 Dec 2017, LZO 2.10 So it seems rather old, but if I do the same check in another newer Ubuntu 20.04.3 I have then I get this: $ openvpn --version OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Jul 19 2021 library versions: OpenSSL 1.1.1f 31 Mar 2020, LZO 2.10 This is the same 2.4.7 version on both but the dates differ a lot... So I checked the custom repositories for apt: $ ls -l /etc/apt/sources.list.d/ total 8 -rw-r--r-- 1 root root 97 Oct 16 2019 openvpn-aptrepo.list -rw-r--r-- 1 root root 63 Oct 16 2019 openvpn-aptrepo.list.distUpgrade The same on my other server shows an empty list. What to do to ensure that OpenVPN will work properly also after the Ubuntu do-release-upgrade to 20.04? -- Bo Berglund Developer in Sweden _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
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