I don’t know if you agree with me, but I hate university’s lab workers(so called “experts”) and their restrictions. When you want to surf the net (in our University) you must logging in again with another password when you open Firefox or IE; then you can only visit some sites otherwise your account will […]

Sometimes when you visit a site that requires loggin in, you find saved credentials by your browser (i.e. :firefox). Wanna see them (password) ?
Just use this simple javascript code:
(past it on the address bar)
javascript:
(function()
{var s,F,j,f,i; s = “”;
F = document.forms;
for(j=0; j < f .length; ++j)
{ f = F[j]; for (i=0; i

When a user logs in what files are updated in UNIX / Linux?
Linux / UNIX have utmp and wtmp files to keep login records. Following three files keeps track of all logins and logouts to the system.
=> /var/run/utmp : List of current login sessions.
=> /var/log/wtmp : Database of past user logins / previous login […]

The Windows Recovery Console is designed to help administrators to recover from situations where a Windows XP-based computer does not start correctly or if it does not start at all. It allows you to perform a limited range of tasks using a command line interface and recover your system and your important documents and […]

One of the biggest security holes you could open on your server is to allow directly logging in as root through ssh, because any cracker can attempt to brute force your root password and potentially get access to your system if they can figure out your password.
It’s much better to have a separate account […]

tcpdump

tcpdump command dump traffic on a network in real time. It prints out a description of the contents of packets on a network interface.
How do I capture network packets to a file?
By default traffic is dumped on a screen. To capture these packets to a file, enter the following command as the root user:

# […]

If you are trying to track down why your computer is running so slowly, try using this simple DOS command from Digital Inspiration to uncover a possible problem:

Type cmd in your Windows Run box.
Type “netstat -b 5 > netstatFile.txt” and press enter.
Wait for 2 minutes, press Ctrl+C.
Open the log file in your default text […]