# general (gen) banner: SSH-2.0-OpenSSH_7.9 FreeBSD-20200214 (gen) software: OpenSSH 7.9 running on FreeBSD (2020-02-14) (gen) compatibility: OpenSSH 7.4+, Dropbear SSH 2018.76+ (gen) compression: enabled (zlib@openssh.com) # key exchange algorithms (kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76 (kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.5, Dropbear SSH 2013.62 (kex) ecdh-sha2-nistp256 -- [fail] using weak elliptic curves `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62 (kex) ecdh-sha2-nistp384 -- [fail] using weak elliptic curves `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62 (kex) ecdh-sha2-nistp521 -- [fail] using weak elliptic curves `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62 (kex) diffie-hellman-group-exchange-sha256 (2048-bit) -- [info] available since OpenSSH 4.4 (kex) diffie-hellman-group16-sha512 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73 (kex) diffie-hellman-group18-sha512 -- [info] available since OpenSSH 7.3 (kex) diffie-hellman-group14-sha256 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73 (kex) diffie-hellman-group14-sha1 -- [warn] using weak hashing algorithm `- [info] available since OpenSSH 3.9, Dropbear SSH 0.53 # host-key algorithms (key) rsa-sha2-512 (2048-bit) -- [info] available since OpenSSH 7.2 (key) rsa-sha2-256 (2048-bit) -- [info] available since OpenSSH 7.2 (key) ssh-rsa (2048-bit) -- [fail] using weak hashing algorithm `- [info] available since OpenSSH 2.5.0, Dropbear SSH 0.28 (key) ecdsa-sha2-nistp256 -- [fail] using weak elliptic curves `- [warn] using weak random number generator could reveal the key `- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62 (key) ssh-ed25519 -- [info] available since OpenSSH 6.5 # encryption algorithms (ciphers) (enc) chacha20-poly1305@openssh.com -- [info] available since OpenSSH 6.5 `- [info] default cipher since OpenSSH 6.9. (enc) aes128-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52 (enc) aes192-ctr -- [info] available since OpenSSH 3.7 (enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52 (enc) aes128-gcm@openssh.com -- [info] available since OpenSSH 6.2 (enc) aes256-gcm@openssh.com -- [info] available since OpenSSH 6.2 # message authentication code algorithms (mac) umac-64-etm@openssh.com -- [warn] using small 64-bit tag size `- [info] available since OpenSSH 6.2 (mac) umac-128-etm@openssh.com -- [info] available since OpenSSH 6.2 (mac) hmac-sha2-256-etm@openssh.com -- [info] available since OpenSSH 6.2 (mac) hmac-sha2-512-etm@openssh.com -- [info] available since OpenSSH 6.2 (mac) hmac-sha1-etm@openssh.com -- [warn] using weak hashing algorithm `- [info] available since OpenSSH 6.2 (mac) umac-64@openssh.com -- [warn] using encrypt-and-MAC mode `- [warn] using small 64-bit tag size `- [info] available since OpenSSH 4.7 (mac) umac-128@openssh.com -- [warn] using encrypt-and-MAC mode `- [info] available since OpenSSH 6.2 (mac) hmac-sha2-256 -- [warn] using encrypt-and-MAC mode `- [info] available since OpenSSH 5.9, Dropbear SSH 2013.56 (mac) hmac-sha2-512 -- [warn] using encrypt-and-MAC mode `- [info] available since OpenSSH 5.9, Dropbear SSH 2013.56 (mac) hmac-sha1 -- [warn] using encrypt-and-MAC mode `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.1.0, Dropbear SSH 0.28 # fingerprints (fin) ssh-ed25519: SHA256:AuOUJ9UN9im4d/ktJoRdRIB63CCHiD/LWIpDt9BlD28 (fin) ssh-rsa: SHA256:Gyly/LTRXWgagEcmYgkuneORrQJGA0jTdaWsiaXBGL0 # algorithm recommendations (for OpenSSH 7.9) (rec) -diffie-hellman-group14-sha1 -- kex algorithm to remove (rec) -ecdh-sha2-nistp256 -- kex algorithm to remove (rec) -ecdh-sha2-nistp384 -- kex algorithm to remove (rec) -ecdh-sha2-nistp521 -- kex algorithm to remove (rec) -ecdsa-sha2-nistp256 -- key algorithm to remove (rec) -hmac-sha1 -- mac algorithm to remove (rec) -hmac-sha1-etm@openssh.com -- mac algorithm to remove (rec) -hmac-sha2-256 -- mac algorithm to remove (rec) -hmac-sha2-512 -- mac algorithm to remove (rec) -ssh-rsa -- key algorithm to remove (rec) -umac-128@openssh.com -- mac algorithm to remove (rec) -umac-64-etm@openssh.com -- mac algorithm to remove (rec) -umac-64@openssh.com -- mac algorithm to remove # additional info (nfo) For hardening guides on common OSes, please see: