https://thinhdvt.freehost.vn/blog/tags/openssl-1.1/ Recent content in Openssl-1.1 on Thinh DVT Hugo -- gohugo.io en-us Wed, 24 Jun 2026 21:21:53 +0700 https://thinhdvt.freehost.vn/blog/2026/06/run-openvpn-2-4-alongside-openvpn-2-7-linux/ Wed, 24 Jun 2026 21:21:53 +0700 https://thinhdvt.freehost.vn/blog/2026/06/run-openvpn-2-4-alongside-openvpn-2-7-linux/ The problem Recently, I needed to connect to my company’s VPN server. Unfortunately, the VPN infrastructure is quite old and only works reliably with OpenVPN 2.4.9. The server still uses legacy settings such as the BF-CBC cipher, which are deprecated in modern OpenVPN releases. My system already uses OpenVPN 2.7, and simply downgrading the package isn’t an option. Older versions depend on OpenSSL 1.1, while the rest of my system has already migrated to OpenSSL 3.