لطفا منتظر باشید ...
Bad Passwords
Probably the easiest to avoid, and most often abused, vulnerability is poor or non-existent passwords. Passwords are your first line of defense. If your password is easily guessed or — even worse — blank, someone will break in.Bad passwords are easy to fix. Start by assigning a password to every account you create — especially root. Then make it a habit to use “good” passwords. Passwords can be cracked by brute force because computers have become very fast. Because you connect to the Internet, hackers can steal your /etc/ passwd file, which contains the encrypted version of your text-based passwords and then use a computer to crack them.RememberUse passwords that don’t use any word found in a dictionary. Simple words of any language are extremely easy to crack. For example, don’t use the password redhat80. Instead, you can change the e in red to 3 and the a in hat to @. Your password becomes
