The line in CSI actually goes to show how some IT people in companies can get away with anything, if their bosses don't know shit about computers.
In most series or films, lines are usually like this:
"All right, I'm going to uplink the LDAP server to the GPU mainframe, so we can get those automated database reports."
"God's speed young man."
To the average Pete, that likes series like CSI where complex know-how is converted into utter simplicity, those kind of lines sound pretty impressive.
The only film where there was something realistic in terms of IT, was in The Matrix, where an old ssh flaw was used by Carrie-Anne Moss' character to bring down the electricity grid.
Well, outside of films like Antitrust and Pirates of Silicon Valley, which were about computers.
Here's the scene:
matrix nmap