Linux:Basics
Putty
- Download the putty ssh client from the Internet!
- We often want to log in to columbo.eszterhazy.hu. Add this server to Putty! Connect to this machine and log in!
- Remove columbo.eszterhazy.hu from the Putty!
- Set font used in Putty to Courier New, font size 11!
- Make the putty switch to full screen when Alt-Enter is pressed!
- Set the character set used by Putty to UTF-8!
Enter commands
- Bring back to the command line the commands you typed earlier!
- Try the additional function of [TAB] with the clear command!
- Find the one of your previous commands that contains the cl characters!
- How to interrupt the program currently running?
Basic Unix commands
Kivonat: clear, w, who, whoami, su, last, finger, date, passwd, pwgen, logout, alias, man talk, write, mesg, halt. On the console: loadkeys.
- Clear the screen.
- Generate passwords!
- Change your password! For the new password, use one of the passwords generated in the previous exercise.
- Who is logged into the system? How long have they been using it? How long have they been inactive? What command are they currently running?
- How busy is the server currently?
- Show the last logged in users! Show the last 10 logins!
- Write a message to your classmate!
- Disable and then enable receiving messages! Check that you have achieved the desired functionality!
- Try the talk command with your neighbour!
- Check the date command manual!
- Generate 6 passwords, each 12 characters long, difficult to remember and therefore secure (see the manual for details).
- How should you parameterize the date command to print only the year?
- Make the c command also clear the screen and the d command print the current system date!
- The ls command should always display the complete table of contents, not just the file names!
- Display these aliases!
- Delete all aliases created in previous exercises.
- Log out from columbo!
