Package: client The client does not support chacha20 as I get this error when I try to connect to the X2Go server. I did harden my SSH configuration as guided by Mozzila https://infosec.mozilla.org/guidelines/openssh
When I use defaults it works fine. It seems that the library used by X2Go is missing some newer methods. Config: server ssh config: KexAlgorithms [email protected] ,ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256,diffie-hellman-group-exchange-sha256 Ciphers [email protected],[email protected], [email protected],aes256-ctr,aes192-ctr,aes128-ctr MACs [email protected],[email protected], [email protected],hmac-sha2-512,hmac-sha2-256,[email protected] Client sshd config: Client using default sshd config or HashKnownHosts yes HostKeyAlgorithms [email protected], [email protected],ssh-ed25519,ssh-rsa, [email protected], [email protected], [email protected] ,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256 KexAlgorithms [email protected] ,ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256,diffie-hellman-group-exchange-sha256 MACs [email protected],[email protected], [email protected],hmac-sha2-512,hmac-sha2-256,[email protected] Ciphers [email protected],[email protected], [email protected],aes256-ctr,aes192-ctr,aes128-ctr Error: "kex error : no match for method mac algo client->server: server [ [email protected],[email protected], [email protected],hmac-sha2-512,hmac-sha2-256,[email protected]], client [hmac-sha1]" or sometimes "crypt_set_algorithms2: no crypto algorithm function found for [email protected]" Let me know if I can provide more information. Regards, *Danie de Jager*
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