The Helpdesk For I.T. Administrators
There may be times when you need to set up a static route in Linux to allow your PC to access a network that is not accessible via the default gateway route. An example of this would be if you had a inter office VPN. You would want your main internet traffic to go via …
Slax is a great LiveCD linux distribution based on Slackware that fits in your pocket. One of the great features is the modular approach that is used for the packages, which are known as modules in Slax. Got a small USB stick that you no longer use? Put Slax on it. This guide shows you …
A default installation of WordPress on Nginx is not going to allow the use of Permalinks. Since Nginx doesn’t support the Apache .htaccess files, the Nginx configuration files need to be edited manually to suit. To enable permalinks in Nginx: Edit the configuration file associated with your WordPress site. Eg: $ sudo nano /etc/nginx/sites-enabled/sitename.conf Locate …
Optimizing images can be a quick and easy way to shrink the file size of jpeg images, removing unneeded data within the file. This can reduce the time it takes users to download the images if they are on a web server. It can also be used to remove comment and exif data from the …
This howto article shows you how to add a new user and password combination to a .htaccess file, for use with the Apache web server. This assumes the Apache tools are installed (specifically the ‘htpasswd’ utility).
HAProxy provides a number of methods for maintaining a record of which backend server should handle a specific connection. This is known as creating a ‘sticky’ connection (other terms for this are ‘connection persistence’ and ‘connection affinity’). HAProxy can use the source ip address, url hash, cookies, sessions (checks cookies and url parameter), headers, and …
If you have a web server running nginx that accepts both http and https connections, there may be times where you want to prevent anyone from accessing a specific page/url using a insecure http connection. For example, login or registration pages. You always want these to be secure if you can. Add the following into …
Its usually a good idea to prevent users from being able to determine the version number of the web server software you are using. This helps prevent people from then going and looking for known vulnerabilities in that specific version, and attacking your site. When a HTTP response comes back to the web browser, it …
This guide will step you through the process of installing HAProxy on CentOS 6. To install HAProxy on CentOS 6 you first need to set up your installation to use the epel software repository. HAProxy is not available in the default CentOS repositories. (Note: All commands below require root privileges.) rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-7.noarch.rpm You can …
This howto will step you through the process of setting up the required software to be able to check the status of a Compaq or HP Smart Array and the attached physical and logical drives on CentOS 6 or RHEL. The required program to be able to talk to the Smart Array is called ‘hpacucli’, …