http://www.sohailriaz.com/how-to-install-memcached-with-memcache-php-extension-on-centos-5x/
1) Install memcached.
Enable rpmforge respository to install latest memcached rpm using yum.
For i386 / i686
rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm
For x86_64
rpm -Uhv http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS//rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm
Use yum to install memcached
yum -y install memcached
As soon as memcached installation completed, edit options for memcached in /etc/sysconfig/memcached to meet your need.
vi /etc/sysconfig/memcached
PORT=”11211″ #define on which port to urn
USER=”nobody” #same as apache user
MAXCONN=”1024″ #maximum number of connections allowed
CACHESIZE=”64″ #memory used for caching
OPTIONS=”" #use for any custom options
Save the file. All options can be seen by using following command
memcached -h
Start memcached
/etc/init.d/memcached start
Starting Distributed memory caching (memcached): [ OK ]
to check the running status of memcached
/etc/init.d/memcached status
memcached (pid 6475) is running…
and
netstat -anp | grep 11211
tcp 0 0 :::11211 :::* LISTEN 6475/memcached
udp 0 0 0.0.0.0:11211 0.0.0.0:* 6475/memcached
2) Install PHP Extension.
Download and install latest stable memcache version from PECL.
cd /usr/src
wget http://pecl.php.net/get/memcache-2.2.5.tgz
tar zxvf memcache-2.2.5.tgz
cd memcache-2.2.5
phpize
./configure
make
make install
memcache.so will be install in php modules directory, now enable memcache.so extension in php.ini
To find out your php.ini location, execute following command
php -i | grep php.ini
Configuration File (php.ini) Path => /usr/local/lib
Loaded Configuration File => /usr/local/lib/php.ini
vi /usr/local/lib/php.ini
extension = “memcache.so”
save the file and restart httpd server.
/etc/init.d/httpd restart
To check is memcache extension loaded in php, execute following command.
php -i | grep memcache
memcache
memcache support => enabled
memcache.allow_failover => 1 => 1
memcache.chunk_size => 8192 => 8192
memcache.default_port => 11211 => 11211
memcache.default_timeout_ms => 1000 => 1000
memcache.hash_function => crc32 => crc32
memcache.hash_strategy => standard => standard
memcache.max_failover_attempts => 20 => 20
Registered save handlers => files user sqlite memcache
PWD => /usr/src/memcache-2.2.5
_SERVER["PWD"] => /usr/src/memcache-2.2.5
_ENV["PWD"] => /usr/src/memcache-2.2.5
Sunday, May 5, 2013
Memcached installation
Friday, May 3, 2013
Setting password for mysql user in .my.cnf
Setting password for mysql user in .my.cnf
Sometimes you want automated access for root on your MySQL database. One way of accomplishing that is by doing this:
# cd /root
# touch .my.cnf
# chmod 640 .my.cnf
And put in it:
[client]
user=root
password=<password of mysql root user>
Once you have done the following steps, the root user can login to mysql as root user without giving password.
root@server [~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 749
Server version: 5.1.68-cll MySQL Community Server (GPL)
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
mysql>
Sometimes you want automated access for root on your MySQL database. One way of accomplishing that is by doing this:
# cd /root
# touch .my.cnf
# chmod 640 .my.cnf
And put in it:
[client]
user=root
password=<password of mysql root user>
Once you have done the following steps, the root user can login to mysql as root user without giving password.
root@server [~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 749
Server version: 5.1.68-cll MySQL Community Server (GPL)
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
mysql>
Hide Apache, PHP and Bind Versions
Hide Apache, PHP and Bind Versions
To Check Apache Version:
By default, Apache will send version and modules information like mod_php, mod_perl, mod_ssl in every HTTP header.
If you want to view Apache web server version and sofware of a remote server, follow this procedure.
# telnet example.com 80
Trying example.com...
Connected to example.com.
Escape character is ‘^]'.
HEAD / HTTP/1.0 <- after this press 2 times ENTER
HTTP/1.1 200 OK
Date: Sun, 07 Oct 2012 12:57:57 GMT
Server: Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 JRun/4.0
Last-Modified: Tue, 03 Jan 2012 11:41:16 GMT
Connection: close
Content-Type: text/html; charset=UTF-8
Connection closed by foreign host.
In the above example it is showing all the details about your web server and php this is not recommended for security reasons.We need to hide this information with the following procedure.
To Hide Apache Information:
To hide the information, add the following two apache directives in Apache configuration file, (httpd.conf or apache2.conf)
ServerTokens ProductOnly
ServerSignature Off
# /etc/init.d/httpd restart
Now the output for apache header looks like below
Server: Apache
To Hide PHP Version Details
Locate php.ini loaded in the server.
Change the following option in php.ini
expose_php On
to
expose_php Off
# /etc/init.d/httpd restart
To Hide BIND Version
You can check the Bind version of a server by using the following command.
# dig +short @XXX.XXX.XXX.XXX -c CH -t txt version.bind
"9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.4"
To hide your version of bind, change the version value in named.conf as like the following.
You can give any string for the version.
options {
directory "/var/named";
version "We Just Hide It";
};
# dig +short @XXX.XXX.XXX.XXX -c CH -t txt version.bind
"We Just Hide It"
To Check Apache Version:
By default, Apache will send version and modules information like mod_php, mod_perl, mod_ssl in every HTTP header.
If you want to view Apache web server version and sofware of a remote server, follow this procedure.
# telnet example.com 80
Trying example.com...
Connected to example.com.
Escape character is ‘^]'.
HEAD / HTTP/1.0 <- after this press 2 times ENTER
HTTP/1.1 200 OK
Date: Sun, 07 Oct 2012 12:57:57 GMT
Server: Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 JRun/4.0
Last-Modified: Tue, 03 Jan 2012 11:41:16 GMT
Connection: close
Content-Type: text/html; charset=UTF-8
Connection closed by foreign host.
In the above example it is showing all the details about your web server and php this is not recommended for security reasons.We need to hide this information with the following procedure.
To Hide Apache Information:
To hide the information, add the following two apache directives in Apache configuration file, (httpd.conf or apache2.conf)
ServerTokens ProductOnly
ServerSignature Off
# /etc/init.d/httpd restart
Now the output for apache header looks like below
Server: Apache
To Hide PHP Version Details
Locate php.ini loaded in the server.
Change the following option in php.ini
expose_php On
to
expose_php Off
# /etc/init.d/httpd restart
To Hide BIND Version
You can check the Bind version of a server by using the following command.
# dig +short @XXX.XXX.XXX.XXX -c CH -t txt version.bind
"9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.4"
To hide your version of bind, change the version value in named.conf as like the following.
You can give any string for the version.
options {
directory "/var/named";
version "We Just Hide It";
};
# dig +short @XXX.XXX.XXX.XXX -c CH -t txt version.bind
"We Just Hide It"
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