Very Simple…
apt-get install libapache2-mod-php5 /etc/init.d/apache2 restart
September 9, 2011
Install Apache2 + PHP5 on Debian
March 28, 2011
How to fix “Starting httpd: httpd: apr_sockaddr_info_get() failed”
This error is caused by the improper configuration of hostname of server. to fix it follow the steps below :
Change HOST.DOMAIN.com to your own hostname.
echo HOST.DOMAIN.com > /etc/hostname /bin/hostname -F /etc/hostname /etc/init.d/httpd restart
June 4, 2010
Protect Apache against Dos/DDos attacks using mod_evasive
mod_evasive is a module for Apache (both 1.3 and 2.0) giving Apache the ability to detect and fend off request-based DoS/DDoS attacks and brute-force attacks conserving your system resources and bandwidth. This tool can be configured to report abusers and even talk to network gear (such as a firewall or ipchains).
in this article we explain how to install mod_evasive on Apache 2 :
wget http://www.zdziarski.com/blog/wp-content/uploads/2010/02/mod_evasive_1.10.1.tar.gz tar zxvf mod_evasive_1.10.1.tar.gz cd mod_evasive /usr/local/apache/bin/apxs -cia mod_evasive20.c
next step is to add the required configuration to the Apache config file , we can add this directly to the end of httpd.conf file but the problem is that if we do this , the httpd.conf will be overwritten by easyapache so we will use include files to add our config.
login into your WHM panel , and follow the following menu items :
Main >> Service Configuration >> Apache Configuration >> Include Editor
on the Pre Main Include section , choose All Versions from drop down menu and add the following config into it :
<IfModule mod_evasive20.c> DOSHashTableSize 3097 DOSPageCount 5 DOSSiteCount 50 DOSPageInterval 1 DOSSiteInterval 1 DOSBlockingPeriod 600 </IfModule>
then click on update and restart Apache server.
May 22, 2010
Check connected IPs to port 80 and number of connections on linux
netstat -plan|grep :80|awk {'print $5'}|cut -d: -f 1|sort|uniq -c|sort -nk 1
March 3, 2010
How to authenticate Apache 2 with Radius on Debian
Install Apache radius module :
apt-get install libapache2-mod-auth-radius
enable radius module for Apache :
a2enmod auth_radius
open /etc/apache2/apache2.conf and add the following lines to end of file :
AddRadiusAuth IP_OF_RADIUS_SERVER:PORT SECRET 5 AddRadiusCookieValid 60
go to /var/www folder or the folder which you want to protect and create a .htaccess file inside it containing following lines :
AuthType Basic AuthName "AdminseHow Radius Authentication" AuthBasicAuthoritative Off AuthBasicProvider radius AuthRadiusAuthoritative on AuthRadiusActive On Require valid-user
restart Apache :
/etc/init.d/apache2 restart
for more info regarding the configuration options , you can read the following link :
http://freeradius.org/mod_auth_radius/
September 10, 2009
Show Apache loaded modules from shell
This command shows both static and shared loaded modules in Apache :
httpd -M
July 19, 2009
July 14, 2009
Limit Connections per IP using mod_limitipconn on cPanel
one of the problems I had on one of my cPanel servers was that some people were using download managers to download files from server , so hundreds of connections were being ESTABLISHED to Apache and it was becoming like a dos attack and causing Apache to become non responsive.
so here is what I did to limit connections per IP in a cPanel hosting server :
there is an Apache module named mod_limitipconn which will take care of it for us.
first download the latest version of mod_limitipconn from this site : http://dominia.org/djao/limitipconn2.html
decompress and install it.
at current time the latest version is 0.23.
wget http://dominia.org/djao/limit/mod_limitipconn-0.23.tar.bz2 tar jxvf mod_limitipconn-0.23.tar.bz2 cd mod_limitipconn-0.23 /usr/local/apache/bin/apxs -cia mod_limitipconn.c
next step is to add the required configuration to the Apache config file , we can add this directly to the end of httpd.conf file but the problem is that if we do this , the httpd.conf will be overwritten by easyapache so we will use include files to add our config.
login into your WHM panel , and follow the following menu items :
Main >> Service Configuration >> Apache Configuration >> Include Editor
on the Post VirtualHost Include section , choose All Versions from drop down menu and add the following config into it :
<IfModule mod_limitipconn.c> <Location /> MaxConnPerIP 10 NoIPLimit images/* </Location> </IfModule>
then click on update and restart Apache server.
now We are all set 