First, often modify the password
because many hackers use exhaustive methods to crack passwords, such as John's password cracking program can be downloaded free from the Internet, as long as a large enough dictionary on fast enough to run night
Some time ago, hackers frequently intruded YAHOO! And other major websites that have completely paralyzed the network. Some time ago, the 163 e-Post Office was said to be slow due to hacker attacks, such as snails. When you think of this, you can't
FunctioncheckFileType ($ fileName) {$ filefopen ($ fileName, rb); $ binfread ($ file, 2); read-only 2 bytes fclose ($ file); $ strInfo @ unpack (C2chars, $ bin); C is an unsigned integer, and all found online are c, which is a signed integer, which
Common file extensions and descriptions
A
ACE: Ace compressed file format
Act: Microsoft Office Assistant File
AIF, AIFF: Audio Interchange File, audio format of the silicon graphic and Macintosh Application
Ani: animated cursor in Windows
Arc: LH
In the process of using a computer, it is inevitable to deal with various types of passwords. The following nine types of passwords may be the most popular for everyone: BIOS password, installation password, user password, power management password,
Before reloading the system, various documents, software, and desktop settings can be backed up fairly easily. But do you know how to back up your password? When you are backing up a system for someone else, how do you back up your password to a new
In the process of using the computer, it is unavoidable to deal with all kinds of passwords, the following nine kinds of passwords may be the most used by everyone: BIOS password, installation password, user password, power management password,
If not, you can use ultraedit to open several corresponding files for comparison.
1. the file header information extracted from ultraedit. The two characters are regarded as one byte (hexadecimal)
JPEG (JPG), file header: ffd8ff
PNG (PNG), file
We are in the process of using XP system computer, it is unavoidable to deal with all kinds of passwords, the following nine kinds of passwords may be the most used by everyone: BIOS password, installation password, user password, power management
Compared with LAN users, General dial-up Internet users are often at a disadvantage in preventing hacker intrusion. A stolen account can be used by hackers as a springboard to engage in network damage activities. The following methods help dial-up
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