AbsoluteTelnet
- Homepage: https://celestialsoftware.net/
- First release: 1996
- Latest release: 13.13 (2025-10-22)
- Version history: https://www.celestialsoftware.net/version-history
- License: Proprietary
- Client: true
- Server: false
Remarks
Supported protocols
Ciphers: aes128-gcm@openssh.com, aes256-gcm@openssh.com, aes128-ctr, aes192-ctr, aes256-ctr, aes128-cbc, aes192-cbc, aes256-cbc, 3des-cbc, 3des-ctr, twofish128-cbc, twofish256-cbc, arcfour, arcfour128, arcfour256, blowfish-cbc, cast128-cbc
Compression formats: zlib, zlib@openssh.com, none
Hostkey formats: ssh-ed25519, ecdsa-sha2-nistp521, ecdsa-sha2-nistp384, ecdsa-sha2-nistp256, rsa-sha2-512, rsa-sha2-256, ssh-rsa, ssh-dss
Key exchange protocols: mlkem768x25519-sha256, sntrup761x25519-sha512, curve25519-sha256, curve25519-sha256@libssh.org, ecdh-sha2-nistp521, ecdh-sha2-nistp384, ecdh-sha2-nistp256, diffie-hellman-group18-sha512, diffie-hellman-group16-sha512, diffie-hellman-group14-sha256, diffie-hellman-group1-sha1, diffie-hellman-group14-sha1, diffie-hellman-group-exchange-sha1, diffie-hellman-group-exchange-sha256, ext-info-c, kex-strict-c-v00@openssh.com, kex-strict-s-v00@openssh.com
Message authentication codes (MACs): hmac-sha2-512-etm@openssh.com, hmac-sha2-256-etm@openssh.com, hmac-sha1-etm@openssh.com, hmac-sha1-96-etm@openssh.com, hmac-md5-etm@openssh.com, hmac-md5-96-etm@openssh.com, hmac-md5, hmac-md5-96, hmac-sha1, hmac-sha1-96, hmac-sha2-256, hmac-sha2-512
User authentication methods: publickey, password, keyboard-interactive, gssapi-with-mic, hostbased
Protocol extensions: server-sig-algs