I am using crunch to create a dictionary, which will contain all combinations for 8 characters. It stopped creating the dictionary after a while, because it requires 56 TB of space.
How can I fix this?
Well. If you run it for all combinations of 8 characters, you'll get
(26 * 2) ^ 8 * 8 = 427677828251648
characters. That's approximately 389TB of space (uncompressed). You're trying to generate too large dictionary. To reduce that, you can
Alternatively, you can limit your problem (but not fix it) by
-z
option (that won't help nearly enough, as compressing random strings is not very efficient)-d
or -p
options.-o START
)Excerpts from man 1 crunch
:
-z gzip, bzip2, lzma, and 7z
Compresses the output from the -o option. Valid parameters are
gzip, bzip2, lzma, and 7z. gzip is the fastest but the compression
is minimal. bzip2 is a little slower than gzip but has better
compression. 7z is slowest but has the best compression.
-d numbersymbol
Limits the number of duplicate characters. -d 2@ limits the lower
case alphabet to output like aab and aac. aaa would not be
generated as that is 3 consecutive letters of a. The format is
number then symbol where number is the maximum number of consecutive
characters and symbol is the symbol of the the character set
you want to limit i.e. @,%^ See examples 17-19.
-p charset OR -p word1 word2 ...
Tells crunch to generate words that don't have repeating characters.
By default crunch will generate a wordlist size of
#of_chars_in_charset ^ max_length. This option will instead
generate #of_chars_in_charset!. The ! stands for factorial.
For example say the charset is abc and max length is 4.. Crunch
will by default generate 3^4 = 81 words. This option will instead
generate 3! = 3x2x1 = 6 words (abc, acb, bac, bca, cab, cba).
THIS MUST BE THE LAST OPTION! This option CANNOT be used with
-s and it ignores min and max length however you must still specify
two numbers.