This is a sample iptables configuration file ‘/etc/sysconfig/iptables’ on a Redhat server where the server has a single interface and is placed in-front of other systems. In this example, this server (the one with the iptables config below) is infront of a web server at ‘10.0.0.2’. Don’t forget to enable
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Managing Tomcat6 via the Web Manager tool – Redhat/CentOS
This article explains how to configure the web manager for Tomcat6. The web manager tool allows the administrator (or anyone with valid credentials) to start and stop individual Tomcat applications and to upload new Tomcat applications (WAR files). Make sure to install the packages: yum install tomcat6 tomcat6-admin* Edit your
Read moreHow to Install and Test Tomcat6 on Redhat/CentOS
This article explains how to install and test Tomcat 6 on Redhat or CentOS Linux. Often you will simply download your java based application (such as OpenKM for example) packaged complete with Tomcat. But you can also do as we’re about to and install Tomcat by it’s self. This article
Read morePerformance Monitoring Apache/Httpd
When monitoring the performance of your Apache web server, you should use system level tools such as top, vmstat, free, netstat and so on. In addition, Apache it’s self has a nice feature called “server-status” which allows you to monitor the Apache performance via a web browser. A screen shot
Read moreCreate your own Munin Plugin on Redhat/CentOS
This article explains how to create your own munin plugin. We will monitor the number of Apache and/or Nginx processors running. On the munin-node (client), create a file as “/usr/share/munin/plugins/webserver-count” and put the following content into it: #!/bin/sh case $1 in config) cat <<‘EOM’ graph_title Webserver Count graph_vlabel load
Read moreInstall Memcached for Magento (or any PHP site) on CentOS/Redhat
This article explains how to install and configure memcached for Magento (or any PHP site) on a Redhat or CentOS server. Install memcached: yum install memcached php-pecl-memcache -y Now edit your “/etc/sysconfig/memcached” file to look something like this: PORT=”11211″ USER=”memcached” MAXCONN=”1024″ CACHESIZE=”256″ ## Accept connections from another server (192.168.1.2)? #OPTIONS=”-l
Read moreInstall Composer on CentOS/Redhat
This article explains how to install Composer on a CentOS and Redhat system. curl -sS https://getcomposer.org/installer | php You should get something like this in return. Note that i have an old version of PHP on this system so it warns me about it: [root@server ~]# cd ~ [root@server ~]#
Read moreInstall Munin Node (Client) on Redhat/CentOS
This article explains how to install and configure the Munun Node on a Redhat or CentOS server. The Munin Server was documented previously. First you need to install the packages: rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm yum install -y munin-node chkconfig munin-node on Make sure to allow TCP port 4949 through your firewall
Read moreInstall Munin Server on Redhat/CentOS
This article explains how to install Munin Server on CentOS and Redhat. This article doesn’t deal with the client (node) side of things. The Munin Node is documented here. Install the Munin Server packages: rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm yum groupinstall “Web Server” yum install -y munin php You can change the
Read moreMinimal Nginx and PHP-FPM on CentOS
This article explains how to install a minimal Nginx server with php-fpm on a CentOS server. Install the packages: yum install nginx php-fpm php And here is the sample virtual-host config “/etc/nginx/conf.d/agix.com.au.conf”: server { listen 80; server_name agix.com.au *.agix.com.au; access_log /var/log/nginx/agix.com.au.access.log; error_log /var/log/nginx/agix.com.au.error.log; root /var/www/agix.com.au; index index.php; location / {
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