[SLUG] Linux Basic(?) networking questions

[Phillipus Gunawan]

Hi there, i have a few questions to ask... :)   How we can knowing other user(other comp) who connect/log-in into Server-Box?   Is there any Group properties that we can set? and where... :)   How to make TomCat (java-apache) server running without root login   That's All Thank You for whoever-kind people reply me :)