A Question,No Answer..... » Linux

Simple Unix/Linux Text Editing Command

tester — Fri, 20 Nov 2009 11:06:10 +0000

-Print

cat

synopsis : cat [OPTION]… [FILE]…

description: concatenate files and print on the standard output

tac

synopsis : tac [OPTION]… [FILE]…

description: concatenate and print files in reverse

-Compare

cmp

synopsis : cmp [-c] [-i N] [-l] [-s] [-v] file1 file2

description: compare two files

diff

synopsis : diff [-b] [-i] [-t] [-w] [-c] [-C] [-e] [...]

Debian Server’s basic security configuration

tester — Sun, 19 Jul 2009 13:52:07 +0000

If you using the Debian Web Server, Check these security configurations.

======Changing TELNET banner======

# more /etc/issue.net !!!!!WARNNING!!!!!! %h <== Warnning Message

======Disable ICMP ECHO======

# echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all or # more /etc/sysctl.conf # [...]

Apache2 configuration(Rewrite module)

tester — Sun, 05 Jul 2009 15:32:36 +0000

My WEB Server has the two home pages(phpBB3,mediawiki) in my own user’s paths.

I have installed phpBB3 in the path ~/public_html/phpBB3 and mediawiki in the path ~/public_html/wiki

And My WEB Server’s document root path was changed to user’s ~/public_html.

debian:/etc/apache2/sites-available# more default

</Directory>

RewriteEngine on

RewriteCond %{REQUEST_METHOD} ^TRACE

RewriteRule .* – [F]

RewriteCond %{HTTP_HOST} !^$

RewriteRule ^/wiki(.*)$ /home/test/public_html/wiki/$1

<==The path specified by http://domain/wiki is [...]

Country IP database(IP blocks)

tester — Wed, 01 Jul 2009 23:38:59 +0000

I had operated a private server. The Server’s OS was Linux DEBIAN.

Cracking was critical problem to my Server Because I’m not professional. I could not find out whether the Sever was broken into…

So I had used the Linux’s iptables package.

Refer to next homepage. This site have the information for indivisual Country’s IP blocks. It can [...]

Mysql commands for beginners..

tester — Sun, 21 Jun 2009 23:44:14 +0000

This will be a Quick Mysql command Reference for beginners.

0. Starting of Mysql

> mysqladmin password “new_password”

Specify a root’s password…

> mysql -u root -p

Connect

mysql> create database [db_name];

Create database….

mysql> create user ‘user_name’@'localhost’ identified by ‘password’;

Create DB user….first method..

mysql> insert into user values(’localhost’,'user_name’,password(’password’),’N',’N',’N', ‘N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’,'N’);

Create DB user.second method..according to a version,may vary N’s number.

mysql> flush privileges;

mysql> grant all privileges [...]