Make sure you follow the above steps for ALL SSL enabled virtual servers because SSL settings across different virtual servers are somehow affecting entire Apache server. Go to Webmin > Servers > Apache Webserver > Existing virtual hosts tab > YOUR_VIRTUAL_SERVER:443 > SSL Options > SSL protocols > Tick TLS v1.0, 1.1, 1.2, 1.3 and Untick SSLv2 and SSLv3. Enable Older TLS Version Using WebminĮnabled TLS 1.0 and 1.1 from Webmin UI. After researching for days and reading lots of threads, here are the things that worked for me. Enabling older TLS version is not a straight forward path. It seems like Windows 7 can work only using TLS 1.1 or TLS 1.0, the application stopped connecting to the Website. If you have a server upgraded from Ubuntu 18 to Ubuntu 20, it supports recent and older TLS. After researching, I found out that in order to increase security, Ubuntu 20 supports only TLS 1.2 and older TLS are disabled by default on new installation. I figured out that there is something wrong with the SSL connection and hence the application cannot connect.Įven though my old and new servers are Ubuntu 20, somehow both support different SSL versions. If the application is running on Windows 7, it cannot connect to the Website but if the application runs on Windows 10, it works. Net application that is connecting to the my website.

When I migrated a site to a new Ubuntu 20 server, I faced an issue.

How to test tls 1.2 apache