toucheatout  2006-11-03 11:05  IT  

Wget, principles and comparable software

  toucheatout  2006-08-07 12:40  IT  

2^0 = 1
2^1 = 2
2^2 = 4
2^3 = 8
2^4 = 16
2^5 = 32
2^6 = 64
2^7 = 128
2^8 = 256
2^9 = 512
2^10 = 1,024
2^11 = 2,048
2^12 = 4,096
2^13 = 8,192
2^14 = 16,384
2^15 = 32,768
2^16 = 65,536
2^17 = 131,072
2^18 = 262,144
2^19 = 524,288
2^20 = 1,048,576
2^21 = 2,097,152
2^22 = 4,194,304
2^23 = 8,388,608
2^24 = 16,777,216
2^25 = 33,554,432
2^26 = 67,108,864
2^27 = 134,217,728

  toucheatout  2006-03-26 22:14  IT  

House of useful informations on the computing backstage, those references should prove handy as a general culture of some of the "esoteric" machinery behind. For instance SMTP and POP3 protocols are quite easily understood and used from a command prompt.

With some basic stuf you'll be able to talk to your machine (nearly) in its own language :) Because things are not complicated with computers, there are just way too many simple things to cope with...

  toucheatout  2006-03-26 22:03  IT  

The protocol also is plain text and the process is quite simple. It is actually very simple to send an email. In the following example, we will send an email from fake@example.net to a@example.com

Find the MX responsible for the target recipient's domain example.com

dig mx example.com

The result is shown on the line(s) with MX. Prioritary MX is the one having the smallest value (from 0 - most prioritary - to 100 - least prioritary).

For the unfortunates under windozs and those not having the dig utility, use

nslookup
set type=mx
example.com