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Authentication and Access Control

  • OpenSSH upgrade to version 9.4 (ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7332, ACX7348, ACX7509, PTX10001-36MR, PTX10003, PTX10004, PTX10008, and PTX10016)—Starting in Junos OS Evolved Release 24.2R1, we've upgraded the version of OpenSSH from 7.5 to 9.4. The following SSH changes are a result of this upgrade:

    • The preferred signing algorithm has changed from ECDSA to ED25519.

    • The scp command now uses Secure File Transfer Protocol (SFTP) for file transfers by default. If you prefer to use the legacy SCP protocol, include the -O option when running the scp command.

    • SSH protocol version 1 has been removed.

    [See Configure SSH Service for Remote Access to the Router or Switch.]