This is quick tip howto select a random number in a range. Example random number between 1-100 (>= 1 and < 100). This is actually very easy job with PostgreSQL own random() function, which returns random value between 0-1. Following example selects 5 random values using generate_series() function:
SELECT random() FROM generate_series(1,5);
random
-------------------
0.595817462075502
0.350072300527245
0.989073566626757
0.700899163261056
0.940509075298905
(5...
Fedora team promises to bring to you the latest and greatest release of Fedora ever, Fedora 12! Many things are really changed and improved. Fedora 12 also brings lots of new packages.
Here is some highlights from Fedora 12 new stuff
Optimized performance - 32-bit architecture software packages have been compiled with special optimization for the Intel Atom processors without losing compatibility with the overwhelming majority of CPUs.
Smaller and faster updates - Fedora 12 uses...
This new design (using Arras Theme) has just been published and will still develop, so any comments and opinions are very welcome.
In my opinion, the new layout is much lighter and clearer. Also blog's content is intended to bring out clearer for blog readers and users.
Please leave comment and tell your opinion!
Old layout screenshot:
New layout screenshot:
Here is a list of the best Google Chrome Search Engine Optimization (SEO) extensions (plugins).
Search Engine Optimization (SEO) Extensions
Chrome SEO
The Google Chrome SEO Extension. Make your SEO tasks easier with Chrome SEO Tools, includes 'all' the stats and data you need.
Install Extension
(more…)
What is Gnome Shell?
GNOME Shell is the defining technology of the GNOME 3 desktop user experience.
It provides following core interface functions:
Launching applications
Opening files
Switching between open windows
Adding and deleting workspaces
Moving windows between workspaces
Dynamic system-related information display (including transient notifications)
Providing a flat list of user-account related actions
Logging out or switching the session, and stopping or...
I before post 'Twitter Hacked by Iranian Cyber Army', but actually just Twitter DNS records was hacked. I think even twitter.com server headers and tracepath to servers simply prove this, because they are completely different normally when hacked.
Hacked twitter.com headers:
(more…)
Sometimes need to delete files whose contents should disappear absolutely, completely and safely. Linux command rm just remove file and it is still possible to dig out from the disk. Fortunately for Linux can be found in shred program that removes the files permanently. Shred command is easy and quickly to use cases when files need to deleted forever.
Shred command usage
Create test file:
echo "testing testing" > /tmp/test.txt
Delete file with shred command:
shred -v -n 25 -u...
Twitter site is hacked by Iranian Cyber Army. Here is some screenshots and full info about page.
Screenshots
Server info and full html content
lynx -mime_header http://twitter.com
HTTP/1.1 200 OK
Date: Fri, 18 Dec 2009 06:42:08 GMT
Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_auth_passthrough/2.1 FrontPage/5.0.2.2635
Last-Modified: Fri, 18 Dec 2009 06:21:13 GMT
ETag: "90c06a-717-47afabf13c840"
Accept-Ranges: bytes
Content-Length:...
« Previous
1
2
3
…
6
7
8
9