IP Networking

i am going to ask a silly question. is it possible to setup a unix server at home. once i have setup successfully, can i provide access to that server via internet. i do not have any commercial intent, behind this.

When you connect to internet, you are likely to get static or dynamic IP. When once you know what is your IP, then you can access available ports from anywhere using that. ( it is not only you, anybody can if there is no proper authentication is done. )

If you wanted to do ssh to your machine, install ssh server and login from anywhere. Be very cautious about intruders when you do something like this.

If you only have a dynamic ip address, you can use any of several methods* to determine your current external ip address and then access your server remotely.
Be warned, some ISP's consider setting up a server without buying their static ip package a breach of contract.

*go to a website that displays the client ip address,
telnet to a unix host and run finger

For security reasons you may wan't configure the authlog.

Uncomment the following line in /etc/syslog.conf :
#auth.notice ifdef(`LOGHOST', /var/log/authlog, @loghost)