Google Public DNS is a free, global Domain Name System (DNS) resolution service, that you can use as an alternative to your current DNS provider. The official page for Google’s Public DNS is located at Google Public DNS Many end-users, as well as servers (VPS/Dedicated), use Google’s Public DNS services as their primary DNS resolvers. Google offers the ability to force flush a domain’s DNS zone records. This allows more […]
How to Remove Your IP From the Hotmail/Outlook blacklist in 3 easy steps
Last Updated: January 23, 2026
What are Microsoft’s email services? Microsoft’s email service consists of hotmail.com, outlook.com, msn.com and live.com domains. As these are very popular email service,s you may eventually experience an issue within your server/network that resorts in you getting blacklist by Microsoft due to undesirable email habits. This could be due a number of things. Ex: Spamming Unsolicited newsletters No opt-out subscription for […]
If your server has fallen victim to IP blacklisting, you’ll certainly want to know how to request your blacklisting be removed. This article will cover blacklist removal and provide links to specific RBL de-listings. Checking Blacklists First thing to do is check and see if you are actually listed on any blacklists. There are many […]
PHP error logging for your site is an optional level of logging that can be enabled to log errors that occur with PHP code. There are several reasons you may choose to enable PHP error logging. You may want to enable PHP error logging if you’re actively developing your site to aid in troubleshooting. If […]
A common php error seen, however rarely known or understood is the “headers already sent” error. Which may look similar to this: Why does it happen? Premature end of script headers “actually means”, the script stopped for whatever reason before it returned any output to the web server. This can be an extremely difficult error […]
A common error seen, however rarely known or understood is the “headers already sent” error. Which may look similar to this: Why does it happen? To understand why headers must be sent before output it’s necessary to look at a typical HTTP response. PHP scripts mainly generate HTML content, but also pass a set of HTTP/CGI headers […]
Restarting a KnownHost VPS or dedicated server can be accomplished in several different ways, depending on how you’re connecting and logging in and whether or not you’re using a control panel. Restart VPS or Dedicated Server using WHM WHM is built to make routine server administrative tasks quicker and easier, so why not use it […]
If you receive the following error, you’ve edited your file with software that has added a BOM magic numbers to the file, which Apache cannot read: ‘\xef\xbb\xbf#’ is a ‘Unicode BOM(Byte Order Mark)’ and consists of invisible characters added by certain text editors like Notepad++, for instance. The BOM often functions as a magic number […]
Sendy Installation Mod_Rewrite Error You may be getting a warning regarding the Apache module mod_rewrite not enabled when preparing to setup Sendy installation. Mod_Rewrite is enabled on Knownhost servers by default. You can check as root via SSH using the following command: You can also confirm this by adding a redirect to google.com in your […]