Install spawn-fcgi

 rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

 yum install spawn-fcgi

location / {
    try_files $uri $uri/ /index.php?p=$uri&$args;
}




Cài đặt Mysql bằng RPM

Howto Install MySQL on Linux

by RAMESH NATARAJAN on JULY 6, 2008

Most of the Linux distro comes with MySQL.  If you want use MySQL, my recommendation is that you download the latest version of MySQL and install it yourself. Later you can upgrade it to the latest version when it becomes available. In this article, I will explain how to install the latest free community edition of MySQL on Linux platform.

1. Download the latest stable relase of MySQL

Download mySQL from mysql.com .  Please download the community edition of MySQL for your appropriate Linux platform. I downloaded the “Red Hat Enterprise Linux 5 RPM (x86)”. Make sure to download MySQL Server, Client and “Headers and libraries” from the download page.

• MySQL-client-community-5.1.25-0.rhel5.i386.rpm
• MySQL-server-community-5.1.25-0.rhel5.i386.rpm
• MySQL-devel-community-5.1.25-0.rhel5.i386.rpm

2. Remove the existing default MySQL that came with the Linux distro

Do not perform this on an system where the MySQL database is getting used by some application.

[local-host]# rpm -qa | grep -i mysql
mysql-5.0.22-2.1.0.1
mysqlclient10-3.23.58-4.RHEL4.1

[local-host]# rpm -e mysql --nodeps
warning: /etc/my.cnf saved as /etc/my.cnf.rpmsave
[local-host]# rpm -e mysqlclient10

3. Install the downloaded MySQL package

Install the MySQL Server and Client packages as shown below.

[local-host]# rpm -ivh MySQL-server-community-5.1.25-0.rhel5.i386.rpm MySQL-client-community-5.1.25-0.rhel5.i386.rpm
Preparing...                ########################################### [100%]
1:MySQL-client-community ########################################### [ 50%]
2:MySQL-server-community ########################################### [100%]

This will also display the following output and start the MySQL daemon automatically.

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/usr/bin/mysqladmin -u root password 'new-password'
/usr/bin/mysqladmin -u root -h medica2 password 'new-password'

Alternatively you can run:
/usr/bin/mysql_secure_installation
which will also give you the option of removing the test
databases and anonymous user created by default.  This is
strongly recommended for production servers.
See the manual for more instructions.
Please report any problems with the /usr/bin/mysqlbug script!
The latest information about MySQL is available at http://www.mysql.com/
Support MySQL by buying support/licenses from http://shop.mysql.com/

Starting MySQL.[  OK  ]
Giving mysqld 2 seconds to start

Install the “Header and Libraries” that are part of the MySQL-devel packages.

[local-host]# rpm -ivh MySQL-devel-community-5.1.25-0.rhel5.i386.rpm
Preparing...                ########################################### [100%]
1:MySQL-devel-community  ########################################### [100%]

Note: When I was compiling PHP with MySQL option from source on the Linux system, it failed with the following error. Installing the MySQL-devel-community package fixed this problem in installing PHP from source.

configure: error: Cannot find MySQL header files under yes.
Note that the MySQL client library is not bundled anymore!

4.  Perform post-install security activities on MySQL.

At a bare minimum you should set a password for the root user as shown below:

[local-user]# /usr/bin/mysqladmin -u root password 'My2Secure$Password'

The best option is to run the mysql_secure_installation script that will take care of all the typical security related items on the MySQL as shown below. On a high level this does the following items:

• Change the root password
• Remove the anonymous user
• Disallow root login from remote machines
• Remove the default sample test database

[local-host]# /usr/bin/mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
In order to log into MySQL to secure it, we'll need the current
password for the root user.  If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.
You already have a root password set, so you can safely answer 'n'.
Change the root password? [Y/n] Y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] Y
... Success!
Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] Y
... Success!
By default, MySQL comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] Y
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] Y
... Success!
Cleaning up...
All done!  If you've completed all of the above steps, your MySQL
installation should now be secure.
Thanks for using MySQL!

5.  Verify the MySQL installation:

You can check the MySQL installed version by performing mysql -V as shown below:

[local-host]# mysql -V
mysql  Ver 14.14 Distrib 5.1.25-rc, for redhat-linux-gnu (i686) using readline 5.1

Connect to the MySQL database using the root user and make sure the connection is successfull.

[local-host]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 13
Server version: 5.1.25-rc-community MySQL Community Server (GPL)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql>

Follows the steps below to stop and start MySQL

[local-host]# service mysql status
MySQL running (12588)                                      [  OK  ]
[local-host]# service mysql stop
Shutting down MySQL.                                       [  OK  ]
[local-host]# service mysql start
Starting MySQL.                                            [  OK  ]

MySQL 5.5 and 5.1 on CentOS 5.5

In a couple of days, MySQL 5.1 will move to extended lifecycle support, where only security fixes and the most severe bugs are fixed. MySQL 5.0 has bee like this for a year already. Typically, extended lifecycle will last for two years, after which will become end-of-line, where no support is guaranteed.

CentOS 5.x has been providing MySQL 5.0 in it’s distribution since that was the active stable branch when CentOS 5.0 was released on 12th April 2007 (or more specifically it’s upstream distribution RHEL 5, which was released 14th March 2007). Since then, Sun/Oracle have released MySQL 5.1 and MySQL 5.5, so the Webtatic Yum repository has added them to it’s web stack, which now provides updated versions of all the AMP in LAMP.
This release is different from the previous packages, since it is important to only upgrade MySQL when you are ready, and you may want to chose to follow only 5.1 updates or 5.5 updates. This does mean though that you will have to uninstall your current mysql installation first.

First, to set up the yum repository, install the webtatic-release RPM:

rpm -Uvh http://repo.webtatic.com/yum/centos/5/latest.rpm

MySQL client library is used with several CentOS packages, so to remove MySQL without them, I have a mysql client library which is independent of the client tools, which can be installed first to be used instead.

yum install libmysqlclient15 --enablerepo=webtatic

Then you can uninstall MySQL:

yum remove mysql mysql-*

Then install the new MySQL version (either mysql51 or mysql55 can be installed here):

yum install mysql55 mysql55-server --enablerepo=webtatic

You should upgrade existing tables before setting the server to become a production machine, which can be done by starting the server and running the mysql_upgrade script (this may take time depending on the size of the database).

service mysqld start
mysql_upgrade

Các lệnh Linux hay ho

• ps -aefL | grep java | wc -l
• netstat -lpn | grep ":9000" => Xem tiến trình nào chạy port 9000
• df: xem dung lượng ổ đĩa cứng
• du -ah : xem dung lượng 1 thư mục
• Xem thông tin CPU và Ram: cat /proc/cpuinfo & cat /proc/meminfo
• Đếm số lượng file trong folder: ls -l . | egrep -c '^-'
• export PATH=$PATH:/usr/local/php/bin/ : set bien moi truong cho php
• SHOW GLOBAL STATUS;
• Clear all memory echo 3 > /proc/sys/vm/drop_caches
• tcpdump -i <interface> -s 65535 -w <some-file>
• ps -eLF | grep ProcessDeductFee
• ip a | grep -e inet.*em4 #check card mang
• ldconfig -p | grep libjpeg #check lib exist of not
• xrandr --newmode "1600x900_75.00" 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync xrandr --addmode VGA1 1280x1024_60.00
• sudo openvpn --config ~/openvpn/client.ovpn
• vlc -vvv udp://@224.0.0.1:8100 --sout='#std{access=file,mux=ts,dst=file_8100.mp4}'
• traceroute IP -T -p Port  check port

• :set fileformat=unix :chuyen ve format Linux, bo cac ki tu thua cua DOS

  lsof /path/to/file: xác định tiến trình đang đọc ghi file  

• 
  grep -rnw '/path/to/somewhere/' -e "pattern"
  curl -L -O -C - url #download with resume
  
  

•