Chaitanya, First, please stop top posting. Email is like a conversation, and simply makes more sense if you go to the end, just like reading a conversation. DO delete irrelevant stuff. >> Chaitanya wrote: > > This is the exact scenario of my machine. > i am running the cent os under my virtual box and i have made a network > bridge to that VBOX So, what's the host o/s, Windows? > > so from my machine i connect to the VBOX using the Xshell. What are you using, putty? > and by the way i am new to linux and this is my test machine so that i do > some testing. So READ UP on Linux/Unix. > this is the F reason i am using the root user. DON'T. Either use root only to do maintenance, or just use sudo to do that. Do *not* test as a root user, except for things only root can do. > what ever os is it i dont think logging in as root user will crash the > system. It won't. However, if you're exposed to the 'Net, you are begging anyone who finds a way to break in to take over your system. Also, doing things as root, esp. if you don't know what you're doing, is a wonderful way to destroy it. Think "format c:/". > > regarding the halt command i used it to check what this command will do > and this one i have done from the F manual only. I have no idea what the "F manual" is. From the command line, prompt> man halt Linux, unlike Windows, comes with man pages for almost all commands. > > but now my VBOX machine crashed. CentOS crashed, or the VBOX? <snip> mark _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos