Laboratory assignment 1 - Search for information in the Unix system

Purpose

To search for information about a Unix system.

Assignement:

1. Under the directory '/etc' there are a lot of information that is used by the operating system itself and by its services. Look up what is stored here and examine some of the files. Can you you find the information that is used by the function "getservbyname"? What is the content of  fstab?
   
2. There is a command, uname,  that gives information about the machine you are using. Check what information you can get from the command.
   
3. In Unix there is a command vmstat. Test what information you can get from it with different patameters.
   
4. Sockets can be used for communication in Unix. There are different types of  sockets (address family)  for internet and local communication, inet and unix. A Unix domain socket is named as a file in the local filesystem. Can you find such a file and how do you know that it is a socket?
   

Hints:

Use the unix man command (and possibly Google) to find information about Unix commands and how they work.

Reporting:

No reporting required, but some knowledge from this assignment may be needed in the following assignments