The fields are separated by spaces. The argument to this keyword must be yes the default or no. The default is to disable untrusted X11 forwarding after twenty minutes has elapsed. The following escape character substitutions will be performed: '%d' local user's home directory , '%h' remote host name , '%l' local host name , '%n' host name as provided on the command line , '%p' remote port , '%r' remote user name or '%u' local user name. Multiple jump hops may be specified separated by comma characters. This option applies to protocol version 1 only and requires 1 to be setuid root. GatewayPorts can be used to specify that ssh should bind local port forwardings to the wildcard address, thus allowing remote hosts to connect to forwarded ports.
When connecting to a server for the first time, a fingerprint of the server's public key is presented to the user unless the option StrictHostKeyChecking has been disabled. The default is not to send any environment variables. If the Tunnel directive is unset, it is set to the default tunnel mode, which is ''point-to-point''. Two additional options allow for opportunistic multiplexing: try to use a master connection but fall back to creating a new one if one does not already exist. Port forwardings can also be specified in the configuration file.
This may be useful in scripts if the connection sometimes fails. UpdateHostKeys Specifies whether secsh should accept notifications of additional hostkeys from the server sent after authentication has completed and add them to UserKnownHostsFile. Once the server connection has been established, the user is authenticated. At least one name from the list must appear in the certificate's list of principals for the certificate to be accepted. See the Ciphers keyword for more information. For full details of the options listed below, and their possible values, see 5. The argument must be yes or no the default.
Setting the character to ''none'' disables any escapes and makes the session fully transparent. Compression also adds extra randomness to the packet, making it harder for a malicious person to decrypt the packet. Use quotation marks if the phrase includes spaces. This option is only available if support for smartcard devices is compiled in default is no support. The all criteria must appear alone or immediately after canonical or final. This can also be specified on a per-host basis in a configuration file.
These hashed names may be used normally by 1 and 8 , but they do not reveal identifying information should the file's contents be disclosed. Type cmd and open Command Prompt. ControlPath Specify the path to the control socket used for connection sharing as described in the ControlMaster section above or the string ''none'' to disable connection sharing. No pattern matching is performed on the specified hostnames, they must be literal domains or addresses. The client tries to authenticate itself using host-based authentication, public key authentication, challenge- response authentication, or password authentication. If this option is set to no, no keys are added to the agent.
This option applies to protocol version 2 only. Their contents should match the respective private parts. This may be useful in scripts if the connection sometimes fails. If, for example, ServerAliveInterval see below is set to 15 and ServerAliveCountMax is left at the default, if the server becomes unresponsive, ssh will disconnect after approximately 45 seconds. The converted key is created using the same base file name with an added. This can be used to execute arbitrary screen-based programs on a remote machine, which can be very useful, e.
It doesn't matter which port is used, as long as it's greater than 1023 remember, only root can open sockets on privileged ports and doesn't conflict with any ports already in use. The matched host name is the one given on the command line. X11-forwarding Permits X11 forwarding previously disabled by the restrict option. Users with the ability to bypass file permissions on the remote host for the user's X11 authorization database can access the local X11 display through the forwarded connection. Note that this option does not work if UsePrivilegedPort is set to yes.
Passphraseless keys should be used only for accounts that require unattended authentication such as file transfer scripts. The argument to this keyword must be yes or no the default. BindAddress Specifies the interface to transmit from on machines with multiple interfaces or aliased addresses. Refer to the description of ControlPath and ControlMaster in 5 for details. Accepted values are af11, af12, af13, af21, af22, af23, af31, af32, af33, af41, af42, af43, cs0, cs1, cs2, cs3, cs4, cs5, cs6, cs7, ef, lowdelay, throughput, reliability, a numeric value, or none to use the operating system default. This option applies to protocol version 2 only.
The default, yes, will attempt to look up the unqualified hostname using the system resolver's search rules. The server alive messages are sent through the encrypted channel and therefore will not be spoofable. This can also be specified on a per-host basis in a configuration file. If no connections are made within the time specified, ssh will exit. This ensures that shared connections are uniquely identified. Once you click on the Install button, you will see the feature disappear from the list. ExitOnForwardFailure Specifies whether 1 should terminate the connection if it cannot set up all requested dynamic, tunnel, local, and remote port forwardings.