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telnet (Services)


Hierarchy Level


Provide Telnet connections from remote systems to the local device.


authentication-order [authentication-methods

Configure the order in which the software tries different user authentication methods when attempting to authenticate a user. For each login attempt, the software tries the authentication methods in order, starting with the first one, until the password matches.

  • Values: Specify one or more of the following authentication methods listed in the order in which they must be tried:

    • ldaps—Use LDAP authentication services.

    • password—Use the password configured for the user with the authentication statement at the [edit system login user] hierarchy level.

    • radius—Use RADIUS authentication services.

    • tacplus—Use TACACS+ authentication services.

  • Default: If you do not include the authentication-order statement, users are verified based on their configured passwords.

connection-limit limit

Configure the maximum number of connections sessions for the telnet service per protocol (either IPv6 or IPv4).


The actual number of maximum connections depends on the availability of system resources, and might be fewer than the configured connection-limit value if the system resources are limited.

  • Range: 1 through 250 connections

  • Default: 75 connections

rate-limit limit

Configure the maximum number of connections attempts per minute, per protocol (either IPv6 or IPv4) on an access service. For example, a rate limit of 10 allows 10 IPv6 telnet session connection attempts per minute and 10 IPv4 telnet session connection attempts per minute.

  • Range: 1 through 250 connections

  • Default: 150 connections

Required Privilege Level

system—To view this statement in the configuration.

system-control—To add this statement to the configuration.

Release Information

Statement introduced before Junos OS Release 7.4.

Option ldaps introduced in Junos OS Release 20.2R1.