I am getting this log and Interner Server Error 500 message, when using phpMyAdmin 5.1.1 and HTTP/3 enabled on NGINX Server. With HTTP/2 protocol works well.
2021/11/04 18:11:27 [alert] 21777#21777: *259 epoll_ctl(1, 16) failed (17: File exists), client: 37.234.***.***, server: *******, request: "POST /phpadmin/index.php?route=/config/get HTTP/3", host: "*******"
EDIT: I installed a new nginx server with Cloudflare's http3. I used this script: https://github.com/angristan/nginx-autoinstall/blob/master/nginx-autoinstall.sh
I installed Php 7.4 fastCgi and downloaded and unpacked Phpmyadmin 5.1.1.
I got these nginx error log after started up nginx and logging in to phpmyadmin:
2021/11/04 18:54:32 [notice] 23537#23537: signal process started
2021/11/04 18:54:46 [alert] 23539#23539: *288 epoll_ctl(1, 16) failed (17: File exists), client: 37.234.122.188, server: harisnyauzlet.hu, request: "POST /phpadmin/index.php?route=/ HTTP/3", host: "harisnyauzlet.hu"
2021/11/04 18:55:10 [alert] 23539#23539: *288 epoll_ctl(1, 16) failed (17: File exists), client: 37.234.122.188, server: harisnyauzlet.hu, request: "POST /phpadmin/index.php?route=/ HTTP/3", host: "harisnyauzlet.hu"
2021/11/04 20:14:00 [crit] 23539#23539: *307 SSL_do_handshake() failed (SSL: error:1e000065:Cipher functions:OPENSSL_internal:BAD_DECRYPT error:1000008b:SSL routines:OPENSSL_internal:DECRYPTION_FAILED_OR_BAD_RECORD_MAC) while SSL handshaking, client: 128.1.248.26, server: 0.0.0.0:443
2021/11/04 21:00:08 [crit] 23539#23539: *314 SSL_do_handshake() failed (SSL: error:1e000065:Cipher functions:OPENSSL_internal:BAD_DECRYPT error:1000008b:SSL routines:OPENSSL_internal:DECRYPTION_FAILED_OR_BAD_RECORD_MAC) while SSL handshaking, client: 193.118.53.202, server: 0.0.0.0:443
2021/11/05 01:07:19 [crit] 23539#23539: *354 SSL_do_handshake() failed (SSL: error:1e000065:Cipher functions:OPENSSL_internal:BAD_DECRYPT error:1000008b:SSL routines:OPENSSL_internal:DECRYPTION_FAILED_OR_BAD_RECORD_MAC) while SSL handshaking, client: 128.14.134.134, server: 0.0.0.0:443