Hi, On Fri, May 21, 2021 at 9:25 AM John English <[email protected]> wrote: > When I try it on my development rig, it works perfectly. The only > difference is that the development rig runs on Windows 10 using Java > 1.8.0_172, the live system is Ubuntu 20.04 running Java 1.8.0_251 (both > Javas are the Oracle versions). I'm using Jetty 9.4.39.
1.8.0_251 and 1.8.0_172 are quite different, as 251 backported the ALPN APIs and possibly also TLS 1.3 (don't recall on top of my head), while the older version does not have those. It may well be possible that you are using TLS 1.2 for your dev environment, and TLS 1.3 for your live environment, and that's enough of a difference. I would double check the release notes for those versions and make sure that your server TLS configuration is sound for both, especially regarding cipher inclusion/exclusion. For example, you may have configured the server to include only certain ciphers that were working with TLS 1.2, but are disabled in TLS 1.3 (because they are weak or vulnerable), leaving no ciphers to negotiate and therefore failing all connections. -- Simone Bordet ---- http://cometd.org http://webtide.com Developer advice, training, services and support from the Jetty & CometD experts. _______________________________________________ jetty-users mailing list [email protected] To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/jetty-users
