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Install CoD 4 Modern Warfare as a Dedicated Server on Linux

This is a HowTo describing the download and installation process for a dedicated Call Of Duty 4 Modern Warfare Linux server. You will need a copy of the game data to do this. Here’s the note on this matter in the Readme that comes with the CoD4 Linux application: Copy

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Private Browsing Online – How to keep your browsing habits safe

This article shows how you can surf the web while keeping your information as private as possible or as private as convenient. The more private you want to be online, the more inconvenient things get. On the other hand, ignoring privacy all-together makes life easy but there is a cost.

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Postfix & Sending From Multiple Domains & PHP

This article should be of benefit to anyone who has a php application sending emails from multiple domain names, a postfix mail server and the need to have emails properly routed depending on the sending domain name. We’re dealing with a situation where the mail server is “sending” from multiple

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Forward the Root Users Email to an External Email Address

In this article we demonstrate how to forward the root users Inbox to an external email address. An email heading to the root users local inbox will not be delivered to root but instead forwarded to the specified email addresses. Yes, we can forward to multiple addresses. Edit the “/root/.forward”

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The Solution to Australia’s Cyber Security Threats

The cyber security threats are increasing and the solution either isn’t known or very poorly communicated to those who can actually make a difference. The later is my assumption and the topic of this article. No matter how many resources the authorities have, no matter how technologically advanced they are,

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NginX and Rate Limiting Search Bots

This article demonstrates how to rate limit Search Bots with NginX. Our objective is to allow all visitors high speeds while trying to slow down search bots. We’ll limit both kinds of traffic but our priority is to ensure real people have a nicer experience. We’ll be limiting search bots

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Using Ansible to Add a User to a Group

This is a short example article showing how you can add an existing use to an existing group. Read the other Ansible articles on this blog site for more information about how YML files are formatted. — – hosts: all sudo: yes tasks: – user: name: myusername shell: /bin/bash groups:

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How to Expand an LVM Volume and Filesystem

We’ve got a virtual server that’s low on disk space. The system administrator responsible for the virtual machine has expanded the disk. Now we need to expand the filesystem to include the additional disk space. TIP: There are two ways we can do this. 1) Don’t expand the disk but

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Optimal Magento Configuration with Varnish and NginX or Apache

The architecture that you decide to use for your Magento site will directly impact the performance of the online store. This article discusses a few alternative ways you can put the puzzle together. There are more and you can be creative with where you place your caching (Varnish) server but

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Check if your SSL certificate and Key match

This article shows how to check if your SSL key and certificate match. Why would you do this? Suppose you’ve just purchased a certificate and in the process mixed up your files OR perhaps the files aren’t named in the way the documentation suggests they are. Let’s first see what

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Change an Active Directory password from Linux

This is how to change your Windows (Active Directory) password from a Linux system. First make sure you have “smbpasswd” installed. If not, install the “samba-common” package via YUM. The command to change your password is: smbpasswd -r dc.example.com The above specifies the domain controller that you want to change

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Manually renew LetsEncrypt Certificates

Assuming you have used LetsEncrypt to generate (create) your SSL certificates, you can then run the following command to update those certificates. certbot renew Note that this was done with version: [root@server]# certbot –version certbot 0.14.1 You may have to restart the web server having run the above command.

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How to Limit SSH Users to RSYNC and SCP using RSSH

This article demonstrates how easy it is to limit users SSH’ing into your system to just Rsync and/or SCP. We’re using CentOS 6 for this demo. For example, suppose you want to allow users (or a script on a remote system) to SCP or Rsycn files to and from a

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Create a Data Backup Plan. What, When & Where

This article covers server backups and guides you through the process of designing a backup plan. The process will result in a data backup plan that the business is comfortable with. How much data and time can your business lose without damaging your reputation and income? When a disaster hits,

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