SSH Requirements for NAKIVO Backup and Replication

Product version: 11.1

Last modified: 19 August 2025

Question

What algorithms does NAKIVO Backup & Replication support to establish SSH connection?

Answer

To successfully establish SSH connection with NAKIVO Backup & Replication, the following SSH algorithms should be applied:

• Kex algorithms

  • diffie-hellman-group-exchange-sha256

  • diffie-hellman-group-exchange-sha1

  • diffie-hellman-group14-sha1

  • diffie-hellman-group1-sha1

  • curve25519-sha256

  • curve25519-sha256@libssh.org

• Server host key algorithms

  • ssh-rsa

  • ssh-dss

  • rsa-sha2-512

  • rsa-sha2-256
    

• Encryption algorithms client to server

  • aes128-ctr

  • aes192-ctr

  • aes256-ctr

  • blowfish-ctr

  • aes128-cbc

  • aes192-cbc

  • aes256-cbc

  • blowfish-cbc

  • 3des-ctr

  • 3des-cbc

• Mac algorithms client to server

  • hmac-sha1-96

  • hmac-sha1

  • hmac-md5-96

  • hmac-md5

  • hmac-sha2-512

  • hmac-sha2-256