-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 At the very first connection established with the XMPP server, Poezio XMPP client displays a window to accept or reject the server's certificate. It prints the sha256sum of the public key of the server (not in the certificate itself, but provided by the server too). On the server, I run the command: $ openssl pkey -in file.key -pubout -outform DER | openssl dgst -sha256 -hex -c | awk '{ print toupper ($2) }' Result on jabber1.casperlefantom.net: 6F:20:21:ED:AB:C6:EB:9E:D4:96:DB:97:14:34:38:6A:9A:C4:B2:A5:DA:9E:9A:9D:F4:69:43:37:B1:C0:AB:89 Result on jabber2.casperlefantom.net: 41:88:E9:3D:61:51:65:FD:32:F4:F5:F4:CD:1F:EC:13:D1:8B:12:A1:AD:DF:6A:8B:C6:02:97:CA:86:82:33:6F The client should display the same thing. If you edit the config file directly, keep in mind it is case sensitive. The purpose of this file is to make client-server connection check, at any time. It will be updated when server's certificate will change. Next update: 21/06/2023 -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEcNWpsYTrRfLHoxirrhV+CynwvvIFAmRnEnsACgkQrhV+Cynw vvJ4IBAAlTkCBzhJKfBE7LrOxtFjXdSNhzU4t3pmBXCZH28S9j8bThW8eNCX0ODu UDuY1xC64n2mToTgP8Y8GOtv1/7UM6mGDTT+zlwzhnnvrJoRC84i7Dbqr5M0S17i pP/HL+qnGKukdVKXf611TINGudxmJXhx5kphD5Wjtj0vmPAnQNZWyIZlyItcPqY8 nfGP+bSNIqineNlXNSbAn7XMFjofjwxIlEoc5KvjV3hjWbVUPGAKxvWqfoaQg3lg IpAXap9wVoZUkLRZ4GPVQO2U2nD6/3bW81r5oA7HK/0L1AQUjHEHlYE+9FwskGVp n5WZ4p8W3htOMZTEctHDvlIOscUrDGsN3WvA1YL2eNr1rSV8ctdNo4ZjDifs8NZJ p/dtGMvfCjeUPk0KU39ATnJP28+2xkhSFLRQnL+wDc9RYoFZ+AQCdgXQgNWcUv/a L3QGoHsWOrrTawCeKOg7C40zxJHfZCrLEOMXJcnvjMItnduiJJIvGm+NyBRUEG/i qAvjTeOQX+LqGpxaFFGddBIOfg7j0+EaD75z61y/yv/vCosycB4KZIx5gsoxwhB1 rDRWy1WA57U9soERdO2h9ri/f0/9bupg10OcLmxlRUW3Gc1w4LtQe8jmtrnuwBuG gfpAUgWrJbnsZFZg19ndXdYvdfD2PomThHzVMQx4sSgldHhKpDY= =tp87 -----END PGP SIGNATURE-----