apache – KutuKupret colorful website

CentOS 6, httpd-2.2 and php-fpm

When your webserver is receiving a lot of traffic and began slow your website down, you might be consider to switch mod_php with php-fpm. First get mod_fastcgi from rpmforge Install php-fpm Configure php-fpm Rename mod.php to mod.php.bak that will disabled mod_php. Configure mod_fastcgi in /etc/httpd/conf.d/fastcgi.conf. add these lines at the…

admin June 29, 2016apache, centos, php, php-fpmNo Comments

apache centos php

centos 7, apache event MPM with php-fpm

Starting from version 2.4 apache offers 3 MPM we can choose, it's depend in what you needs. prefork MPM uses multiple child processes without threading. Each process handles one connection at a time without creating separate threads for each. worker MPM uses several threads per child processes, where each thread…

admin June 4, 2016apache, centos, php, php-fpmNo Comments

apache

Graphing ApacheBench Results Using GnuPlot

Ab / ApacheBench is a tool commonly used to perform benchmark by many people. unfortunately, the results are displayed somewhat difficult to read by most people. but it can be tricked by turning it into a plot image. this time, I will make examples how to change the results of apachebench into a form of image plots using gnuplot. although apachebench’s report is very helpful, we need to output the data in a parse-able format. To do this we use the -g switch which will output a gnuplot-friendly tab delimited table of data.

First we need to installed gnuplot if we don’t have it yet.

$sudo yum -y install gnuplot

In this example i’ll benchmark request on static png file.

Run first webserver benchmark

$ ab -k -n 50000 -c 100 -g server1.txt http://server1/server1.png

Run second webserver benchmark

$ ab -k -n 50000 -c 100 -g server2.txt http://server2/server2.png

Example result server1.txt/server2.txt

starttime       seconds ctime   dtime   ttime   wait
Tue May 10 16:42:28 2011        1305020548      0       2       2       2
Tue May 10 16:42:28 2011        1305020548      0       2       2       2
Tue May 10 16:42:28 2011        1305020548      0       3       3       2
Tue May 10 16:42:28 2011        1305020548      0       3       3       3
Tue May 10 16:42:28 2011        1305020548      0       3       3       3
Tue May 10 16:42:28 2011        1305020548      0       3       3       3
Tue May 10 16:42:28 2011        1305020548      0       3       3       3
Tue May 10 16:42:28 2011        1305020548      0       3       3       3

admin May 10, 2011apache, ApacheBench, GnuPlot3

apache

Apache stress test

Apache includes a very useful tool for hammering the server. It’s called Apache Benchmark “ab” is the binary’s name and it can really hand a server it’s own ass if you don’t watch it. [bash] $ ab -kc 10 -t 30 http://localhost/ [/bash] That will open 10 connections, use Keep-Alive…

admin September 10, 2009apacheNo Comments

apache ssl

why ssl certificate cannot be applied in apache NameVirtualHost

Due to the nature of the SSL layer in HTTPS, negotiating a secure connection happens before the HTTP protocol is initiated. That means that at the time the SSL layer is in play, the “Host” header has not been sent and, therefore, apache cannot determine which NameVirtualHost to use. If…

admin September 5, 2009apache, sslNo Comments

apache openssl ssl

Apache self signed certificate HOWTO

Generate the keys for the Certificate Authority (the key that will do the signing) Code: [bash] $ openssl genrsa -des3 -out ca.key 4096 $ openssl req -new -x509 -days 3650 -key ca.key -out ca.crt [/bash] Generate the private key for your server Code: [bash] $ openssl genrsa -des3 -out server.key…

admin July 24, 2008apache, openssl, selfsigned, sslNo Comments