Hiding X-Powered by on JBoss Application Server 4.22.x Rumi, April 20, 2012 JBoss can add headers in the HTTP response. The X-Powered-By header exposes what implementation is behind your site. This header is created by a servlet filter that is activated by default in JBoss web configuration files (…/usr/java/jboss-4.2.2.GA/server/default/deploy/jboss-web.deployer/conf/web.xml). You can either disable this filter by commenting the following lines: <filter>… Continue Reading
mod_jk for RHEL6 Rumi, April 20, 2012 If you have a RHEL6 box which ships both Apache and Tomcat6 you might want to connect the two together. You probably have looked around for mod_jk as a RHEL6 RPM or SRPM (src.rpm). You find that It isn't in EPEL, and it isn't in Red Hat Optional Server… Continue Reading
Group-Office installation on Debian 6.x Rumi, April 1, 2012April 1, 2012 I used the auto installation as guided by the group-office wiki. However, for conveniences, quoting the contents once again: Easy installation on a dedicated Debian or Ubuntu server This is the easiest way of installing Group-Office. With the debian packages everything is configured automatically and Group-Office updates will be installed… Continue Reading
Putting Varnish In Front Of Apache On Ubuntu/Debian Rumi, March 22, 2012 Varnish is an open source "web accelerator" which you can use to speed up your website. It can cache certain static elements, such as images or javascript but you can also use it for other purposes such as Loadbalancing or some additional security. In this tutorial we will focus… Continue Reading
Improving Apache Tomcat Security – A Step By Step Guide Rumi, March 21, 2012 Apache Tomcat boasts an impressive track record when it comes to security. According to the official Apache Tomcat Wiki Pages, there has never been a reported case of actual damage or significant data loss due to a malicious attack on any Apache Tomcat instance. Most vulnerabilities, both major and minor,… Continue Reading
A Simple Step-By-Step Guide To Apache Tomcat SSL Configuration Rumi, March 21, 2012March 21, 2012 Secure Socket Layer (SSL) is a protocol that provides security for communications between client and server by implementing encrypted data and certificate-based authentication. Technically, the term "SSL" now refers to the Transport Layer ouSecurity (TLS) protocol, which is based on the original SSL specification. SSL is one of the most… Continue Reading
Windows 7 theme on Ubuntu 10.04 Rumi, March 11, 2012 Introduction This wiki page helps you to setup Ubuntu to look like the Microsoft Windows 7 operating system. This is a quick hack of the original theme at: http://gnome-look.org/content/show.php/Win2-7+Pack?content=113264. This theme is for those who want to use a fast, secure operating system but do not want to learn a… Continue Reading
Install Tomcat 6 in Debian Rumi, February 19, 2012 This article outlines a procedure for installing Tomcat 6 in Debian Lenny. Keep in mind that this does not include Apache 2 installation or integration. Apache must be installed separately and integrated to work with Tomcat. Add following line in sources list- nano /etc/apt/sources.list deb http://ftp.debian.org/debian/ squeeze non-free Update… Continue Reading
Neighbour table overflow Rumi, February 10, 2012 If you have a big network with the hundreds of hosts you can expect “Neighbour table overflow” error which occurs in large networks when there are two many ARP requests which the server is not able to reply. For example you’re using server as a DHCP server, cable modems provisioning,… Continue Reading
Webmin install on Debian System Rumi, February 9, 2012 If you are using the DEB version of webmin, first download the file from the downloads page , or run the command : wget http://prdownloads.sourceforge.net/webadmin/webmin-1.580_all.deb then run the command : dpkg –install webmin_1.580_all.deb The install will be done automatically to /usr/share/webmin, the administration username set to root and the password… Continue Reading