Time is up, I must set a server for my staff for their learning needs, they want root account. Not sudo
After seeing more in internet I came across to jail solution. See in internet for more practical examples and put them in a list here.
Due to limited hardware I install new machine with [...]

Click here to read more from freebsd 8

I just visit FreeBSD snapshots page and see FreeBSD 8 current available in FTP.
If you wish try it you might visit their Snapshots Page.

Click here to read more from freebsd 8