8 Configuring Network Access114 Nokia IP40 Security Platform User’s Guide v1.1To view the SSH service, use the following command:show ssh serverenableArgumentsenable <0 / 1>The value of 0 disables SSH and the value of 1 enables SSH. The default value is 1 since SSH isenabled by default.SSH Authentication MethodsYou can perform the SSH authentication in the following ways: Password authentication—set up by default. In this method, you can connect to the SSHserver running on IP40 from the SSH client installed on your computer, after entering yourpassword. Public-key authentication—one of the most secure ways to authenticate by using SSH.The basic principle in public-key authentication is the use of a pair of computer-generatedkeys: private key and public key. A public key is not useful unless you have thecorresponding private key.Using SSH ClientYou need an SSH client to connect to the SSH server running on IP40. Install an SSH client ifyou do not have one already.You can use the SSH client to connect to the IP40 by using password authentication or publickey authentication. For additional information, see User Manual of the SSH client you are using.Configuring Advanced Secure Shell Server OptionsFor additional information on using the command line options, see the Nokia IP40 SecurityPlatform CLI Reference Guide Version 1.1.Configuring Server Authentication of UsersUse the following commands to configure the type of authentication the server uses toauthenticate users:set ssh serverpassword-authentication <0 | 1>publickey-authentication <0 | 1>Use the following commands to show user authentication configurations:show ssh serverpassword-authenticationpublickey-authentication
