Is " service " something every Linux server has, or is that a program you knew the OP had because his server was running Arch Linux? Then I tried sudo apt-cache search service and also found nothing. I'm going to feel really stupid if it was meant to be something else ie. I might say cat [filename] , but if a newbie typed cat [filename] into a terminal, clearly they would be confused — Nathan. Add a comment. X11Forwarding yes X11UseLocalhost no. Baris Demiray Baris Demiray 1, 22 22 silver badges 32 32 bronze badges.
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Stack Gives Back Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Linked 1. Related For X11 forwarding, the remote server host doesn't need to have a full X11 system installed.
However, at least the server host needs to have xauth installed. To install xauth , do the following on a remote server. The above setup enables X11 forwarding system-wide on the server host.
If you would instead like to enable X11 forwarding on an individual user basis , you can use user-specific SSH configuration file i. That way, you can use X11 forwarding only when you ssh to the user's account.
This is a common method for password authentication, one-time passwords, and multi-factor authentication. Specifies that a TCP port on the local machine be forwarded over the secure channel to the specified host and port from the remote machine.
Specifies the verbosity level of logging messages from ssh. Specifies the MAC message authentication code algorithms in order of preference.
The ssh -Q mac command can be used to query supported MAC algorithms. This option can be used if the home directory is shared across machines. In this case localhost will refer to a different machine on each of the machines and the user will get many warnings about changed host keys. Specifies the protocol versions in order of preference. The possible values are '1' and '2'. Multiple versions must be comma-separated.
There is reason to believe it may be susceptible to man-in-the-middle attacks. Specifies the command to use to connect to the server. The SSH client communicates with the proxy command using its standard input and standard output, and the proxy command should pass the communication to an SSH server.
Specifies whether to try public key authentication using SSH keys. Valid values are yes and no. When public key authentication is used in a production environment, a proper SSH key management system should also be put in place. Specifies that a TCP port on the remote machine be forwarded over the secure channel to the specified host and port from the local machine. Specifies whether to try rhosts based authentication with RSA host authentication.
This is for protocol version 1 only and is deprecated. Specifies whether to try RSA authentication. Sets the number of keepalive messages that may be sent by the client without the client receiving any messages back from the server.
When this threshold is reached the client will terminate the session. Specifies interval for sending keepalive messages to the server. The messages are sent through the encrypted channel, and serve to detect if the server has crashed or the network has gone down. Specifies whether to send TCP keepalives to the other side. These operate on the level of the TCP protocol.
Sending keepalives helps properly close the socket when the network or server goes down. On the other hand, without it, the connection may stay alive and any windows open, even if the network is down for a while. If yes , request tun device forwarding between the client and the server. Specifies whether or not to use a privileged port for outgoing connections. The client must run as root to use a privileged port.
A privileged port is required for host-based authentication.
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