http://www.ubuntututorials.net Copy/Paste tutorials for Ubuntu Tue, 01 Jun 2010 20:58:07 +0000 http://backend.userland.com/rss092 en mod_spamhaus is an Apache module for DNS Block Listing that protects web services by denying access to particular IP addresses. It can stop spam relaying via web form URL injection, and block HTTP DDoS attacks from bot-nets. It queries sbl-xbl.spamhaus.org, taking advantage of the Spamhaus Block List (SBL) and the Exploits ... http://www.ubuntututorials.net/install-mod-spamhaus-apache-module-to-fight-comment-spam/ ionCube protects software written using the PHP programming language from being viewed, changed, and run on unlicensed computers. 1. Download ionCube loaders sudo wget http://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86.tar.gz 2. Extract sudo tar zxvf ioncube_loaders_lin_x86.tar.gz 3. Move to a permanent location sudo mv ioncube /usr/local/ 4. Add reference to your php.ini file (sudo pico /etc/php5/apache2/php.ini) zend_extension = /usr/local/ioncube/ioncube_loader_lin_5.2.so There are a few versions ... http://www.ubuntututorials.net/installing-ioncube/ The Zend Optimizer enables you to run Zend Guard encoded files. 1. Download a copy of Zend Optimizer / Guard from the location below and put it into /tmp http://www.zend.com/en/products/guard/downloads 2. Extract cd /tmp sudo tar zxvf ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz Replace with your actual filename 3. Create a directory to contain Zend optimizer sudo mkdir /usr/local/lib/Zend 3. Move the Zend optimizer ... http://www.ubuntututorials.net/installing-zend-optimizer/ Allowing root logins to your SSH damon is a big security threat. If the SSH port is open, hackers will probably at some time attempt to brute force your root password. It's a good idea to disable root logins to SSH and instead use a normal user to login and ... http://www.ubuntututorials.net/disable-root-login-to-ssh/ The PowerDNS Nameserver is a modern, advanced and high performance authoritative-only nameserver. It is written from scratch and conforms to all relevant DNS standards documents. Furthermore, PowerDNS interfaces with almost any database. 1. Install the PowerDNS server and MySql backend using apt sudo apt-get install pdns-server pdns-backend-mysql 2. Create a new database (or ... http://www.ubuntututorials.net/installing-powerdns-on-karmic-koala/ Sudo allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments. 1. Create a new user (optional) adduser user1 2. As root, run ... http://www.ubuntututorials.net/add-a-sudoer-user-allowed-to-use-sudo/ Ubuntu has just released the final version of Ubuntu 9.10 (Karmic Koala). If you're running the previous version Ubuntu 9.04 (Jaunty Jackalope), you can easily upgrade using the terminal. If you have a desktop environment installed you can just click the upgrade button in the Update Manager accessible from System -> ... http://www.ubuntututorials.net/upgrade-ubuntu-9-04-to-9-10-jaunty-to-karmic/ When connecting to a server without a monitor by VNC, X won't allow you to select screen resolution higher than 640x480 on next restart. This can be easily fixed: Open /etx/X11/xorg.conf using a text editor (pico /etx/X11/xorg.conf) and add these two lines in the Monitor section of the config file: HorizSync ... http://www.ubuntututorials.net/increasing-screen-resolution-in-vnc-on-x/ Apache Tomcat is a servlet container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, and provides a "pure Java" HTTP web server environment for Java code to run. 1. Install all required packages sudo apt-get install tomcat6 tomcat6-admin tomcat6-examples Tomcat ... http://www.ubuntututorials.net/installing-tomcat-6-on-jaunty/ vsftpd is a secure, fast and stable FTP server. In this tutorial we'll install the server and make it check in a flat text file for virtual users allowed to login. 1. Install required packages sudo apt-get install vsftpd libpam-pwdfile 2. Configure vsftpd (sudo pico /etc/vsftpd.conf) Edit these variables in the config file and ... http://www.ubuntututorials.net/installing-vsftpd-using-text-file-for-virtual-users/