Some basic guidelines for owners of Linux servers
Get familar with access via ssh - it is generally your only way of accessing the machine.
First step is making and understanding keys.
A guide on how to make keys and use them:
ssh -p 8022 email@example.com
ssh -p portnumber username@<ipnumber or hostmane>
Note that, in this exmaple, you use the port -p option, as ssh service has been moved from its standard port, which is 22.
When access via keys works, you can (get an admin to) disable access via username/password.
2. basic sommands
Get familiar with the most basic linux commands
Cheat sheets are very helpful: http://www.tuxfiles.org/linuxhelp/linuxcommands.html http://files.fosswire.com/2007/08/fwunixref.pdf http://www.digilife.be/quickreferences/QRC/The%20One%20Page%20Linux%20Manual.pdf
2.a get familiar with autocomplete (the TAB key) and history (arrow keys)
2.b understand sudo (performing commands with superuser rights)
2.c learn how to use
command --help or man command
to learn more a bout a command.
Get used to updating your machine from time to time:
#sudo apt-get update #sudo apt-get upgrade
# man apt-get
to learn more about what apt-get does.
Later, you might turn this into a cron job.