查看“模板:USJ Customize NewUser”的源代码

== Adding new SSH users ==
*Add a new user and change the password for that user ('''optional'''):
 sudo useradd -m ''myownuserID''
 sudo passwd ''myownuserpw''

:Login using the new user ID to complete the installation.

*Create an SSH keypair for automated login by the new user:
:*Generate a key pair (by default, a 2048-bit RSA key pair is created):
 ssh-keygen

:*Accept the default location for the key file ( /home/''myownuserID''/.ssh/id_rsa ).
:*Leave the passphrase empty

:Make sure that a file named authorized_keys (with write privileges) is in the /home/''myownuserID''/.ssh folder. If not, create such a file (using the "touch" command to create an empty file) after logging into the server as ''myownuserID'':
 cd ~/.ssh
 touch authorized_keys

:Alternatively, you can copy the original authorized_keys file from the /etc/''jauntyadmin00''/.ssh folder (as long as it has been revised and is not the original insecure authorized_keys file distributed with the system). This is useful if you wish to keep both the ''jauntyadmin00'' and ''myownuserID'' users.
 sudo cp /home/''jauntyadmin00''/.ssh/authorized_keys /home/''myownuserID''/.ssh/authorized_keys
 sudo chown -R ''myownuserID'' /home/''myownuserID''

:Concatenate the newly-generated id_rsa.pub key to the authorized_keys file:
 cd ~/.ssh
 cat authorized_keys id_rsa.pub >> authorized_keys

== Inactivate old users ==
*Inactivate old users (this is easiest from the GUI desktop once installation has been completed):
:Menu -> System -> User Manager -> ''highlight userID'' -> Account disabled (''ticked'')

:If you merely wish to exclude a user from appearing on the Login screen:
:Menu -> System -> System Settings -> Advanced -> Login Manager -> Users -> ''tick the users to exclude from the Login screen''

== Change hostname (optional) ==
*Hostname: ''Jaunty32Server00''

:*Discover the current hostname and the Fully Qualified Domain Name:
 hostname
 hostname --fqdn

:*I don't recommend changing the hostname, but it can be changed <!--->using
 hostname ''newhostname''

:and<---> by editing the /etc/hostname file and the /etc/hosts file
 sudo gedit /etc/hostname
 sudo gedit /etc/hosts

It is not necessary for security reasons to change your hostname, and it is '''not recommended''' especially if you have already been using the system for a while (as the hostname can be used in several configuration files other than the two noted).