Learn different methods using a url

An introduction.

There's a little more to Internet addressing than commonly meets the eye. There are conventions which allow for some interesting variations in how an Internet address is expressed. These tricks are known to the spammers and scammers, and they're used freely in unsolicited mails. You'll also see them in ad-related URLs and occasionally on web pages where the writer hopes to avoid recognition of a linked address for whatever reason.

NOTE: Internet Explorer and Netscape have both begun dealing with URLs differently, particularly in versions 6 and above. Some of the examples here will no longer work with those browser versions. Try some links to see if works in ur browser.

NOTE: We will need a calculator. You can use ur PC calculator (START->All programms->accesories->calculator).

Methods.

ping/ip - open ur dos and type in ex. ping google.com (or use a ping client) and take the ip of the site. Now in ur browser u can type http:// ip ex. http://216.239.53.100 and will open again google.

http:// @ - everything between "http://" and "@" is completely irrelevant! Just about anything can go in there and it makes no difference whatsoever to the final result. ex. http://typeanythinghere@216.239.53.100 or http://helloworld@www.google.com or http://yeayeathatworks@google.com

dotted-decimal format - A dotted-decimal IP number normally has 4 numeric segments, each separated by a period. The numbers must range from 0 to 255. In fact they must translate to an 8-bit binary number (ones and zeroes), which can represent a quantity no higher than 255. can add multiples of 256 to any or all of the 4 segments of an IP address, and it will often still work.

dword - Ok, now we will use our calculator (open it :P -> go to view -> set it on scientific method). Make sure that the radio "Dec" (on left) and radio "Deg" (on right) are checked. Now, if for ex. IP is 216.239.53.100 we will do this 216*256+239= *256+53= *256+100= 3639555428. Now try it http://3639555428 . Now, there is a further step that can make this address even more obscure. You can add to this dword number, any multiple of the quantity 3639555428 (256⁴) -- and it will still work. This is because when the sum is converted to its basic digital form, the last 8 hexadecimal digits will remain the same. Everything to the left of those 8 hex digits is discarded by the IP software and therefore irrelevant.

NOTE: We can do the same having less dots. ex. ip is 216.239.53.100 then we can multiply any number of the ip (*256) and leave the others untached. ex. (239*256) + 53= *256 +100= 15676772 now try http://216.15676772 .

hexadecimal - Again take ur calculator (scientific method). Now remember how we found the dword (set ur calculator as u used it to find dword). Take for ex. 3639555428 (that we found) and type it in ur calculator. Now checked the radio "Hex" (and be sure to be checked the "Dword" on right). The resulting hexadecimal number (D8EF3564) can be expressed as an IP address in this manner: 0xD8.0xEF.0x35.0x64 . The "0x" designates each number as a hex quantity. We can use it without the dots (ex. 0xD8EF3564) as well as by adding arbitrary hex digits on the left of the real number (ex. 0x9A3F0800D8EF3564). http://0xD8.0xEF.0x35.0x64 or http://0xD8EF3564 or http://0x9A3F0800D8EF3564

octal - An IP address can also be represented in octal form -- base 8. I 'll explain it by converting hex to octal. We 'll use the following table (after we found hexadecimal (0xD8.0xEF.0x35.0x64)using the above method, we 'll use ex. 0xD8 to convert it to octal ex. 330).

0 1 2 3 4 5 6 7 8 9 A B C D E F.

0 000 001 002 003 004 005 006 007 010 011 012 013 014 015 016 017

1 020 021 022 023 024 025 026 027 030 031 032 033 034 035 036 037

2 040 041 042 043 044 045 046 047 050 051 052 053 054 055 056 057

3 060 061 062 063 064 065 066 067 070 071 072 073 074 075 076 077

4 100 101 102 103 104 105 106 107 110 111 112 113 114 115 116 117

5 120 121 122 123 134 125 126 127 130 131 132 133 134 135 136 137

6 140 141 142 143 144 145 146 147 150 151 152 153 154 155 156 157

7 160 161 162 163 164 165 166 167 170 171 172 173 174 175 176 177

8 200 201 202 203 204 205 206 207 210 211 212 213 214 215 216 217

9 220 221 222 223 224 225 226 227 230 231 232 233 234 235 236 237

A 240 241 242 243 244 245 246 247 250 251 252 253 254 255 256 257

B 260 261 262 263 264 265 266 267 270 271 272 273 274 275 276 277

C 300 301 302 303 304 305 306 307 310 311 312 313 314 315 316 317

D 320 321 322 323 324 325 326 327 330 331 332 333 334 335 336 337

E 340 341 342 343 344 345 346 347 350 351 352 353 354 355 356 357

F 360 361 362 363 364 365 366 367 370 371 372 373 374 375 376 377

hexadecimal character codes - Well, to understand better take a look here:
http://%67oo%67le.com or http://%67%6F%6F%67%6C%65%2E%63%6F%6D

NOTE: Below is the table which 'll need to use this method.

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI

1 DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US

2 SP ! " # $ % & ' ( ) * + , - . /

3 0 1 2 3 4 5 6 7 8 9 : ; < = > ?

4 @ A B C D E F G H I J K L M N O

5 P Q R S T U V W X Y Z [ \ ] ^ _

6 ` a b c d e f g h i j k l m n o

7 p q r s t u v w x y z { | } ~ DEL

NOTE: To help u, i 'll tell u that %67 is g %6F is o etc.

NOTE: You can mix some ways together and u 'll see if it works by checking them (always depends from ur browser).