AGIX Linux
AGIX Linux
Blog Post
  • Share This: This article shows how to add new users to a Linux server manually. The process is very simple.  As the “root” user we will be created one user called “ben”. useradd ben The above command will create the new user and “should” create the users home directory at

AGIX Linux
AGIX Linux
Blog Post
  • Share This: Google’s Gmail and Mirosoft’s Office 365 email services send email between each other using TLS. Find out more at Gmails “learn more” page. This is great news and a comforting thought that these companies care about communications security. Provided that the keys are safe, so too are our

AGIX Linux
AGIX Linux
Blog Post
  • Share This: This is possibly the single most important change you can make to your web server “vhost” to improve security to the entire server. PHP can do anything it likes to your server that the user it runs as can. In other words, it can read your “/etc/passwd” file,

AGIX Linux
AGIX Linux
Blog Post
  • Share This: This is a multi-part series of Nagios articles all focused on configuring a complete Nagios monitored network. Find all related articles here. Nagios has the ability to send emails to contacts (email addresses) and groups of contacts when events occur. This article demonstrates how contacts get notified. The

AGIX Linux
AGIX Linux
Blog Post
  • Share This: This is a multi-part series of Nagios articles all focused on configuring a complete Nagios monitored network. Find all related articles here. Nagios monitors servers, switch and pretty much anything you like and each device must be defined in a file that Nagios looks at for guidance. That

AGIX Linux
AGIX Linux
Blog Post
  • Share This: This is a multi-part series of Nagios articles all focused on configuring a complete Nagios monitored network. Find all related articles here. I’ve written about this before but times have changed and CentOS 7 is slightly different to CentOS 6. This article explains how to configure a very

AGIX Linux
AGIX Linux
Blog Post
  • Share This: This article demonstrates how to install and configure the Nagios monitoring system (the server) on a Linux CentOS 7 or RHEL7 server. This article goes as far as installing and configuring Nagios to show the “localhost” only. I’ll write second article that shows how to add other machines

AGIX Linux
AGIX Linux
Blog Post
  • If you find your WordPress content repeating its self, consider the following possibility. In this case i found the issue to be a plugin that was causing errors in javascript. The “./plugins/optimize-javascript/merged/” directory (if it exists) contains optimized JS which i’ve found to be occasionally faulty. Delete the JS file

AGIX Linux
AGIX Linux
Blog Post
  • Keeping your Mac up to date is no less important than any other system. Despite popular belief, MacOS should be considered just as susceptible to malware as any other operating system. One might argue that MacOS is based on BSD/Linux and therefore inherently more secure but just because one operating

AGIX Linux
AGIX Linux
Blog Post
  • In the past we would hate the idea of anyone listening in on your personal conversations. In fact, i bet it scares you know. So why are we inviting Amazon, Google, Apple, Samsung and others into our homes to listen and watch our lives? These companies are “marketing” their way

AGIX Linux
AGIX Linux
Blog Post
  • We go to great lengths to protect company data with backups, access controls and staff training but what if someone with access tries to take intellectual property from the business computer systems for their own gain? What can you do about it? That’s the topic of this article. It’s not

AGIX Linux
AGIX Linux
Blog Post
  • You’ll be wishing you did this before something went wrong. My hope is that the storm hasn’t arrived and you still have time to implement a proper system to track, control and report on staff Internet use. The fact is that staff will use the Internet for whatever they can,

AGIX Linux
AGIX Linux
Blog Post
  • Sometimes a visitor will arrive at your webserver by specifying the target (your server) by IP address only. This means they will get the first default vhost. It also means they will get an SSL error (mismatching name). This article shows how you can block that with a 403. Put

AGIX Linux
AGIX Linux
Blog Post
  • This article is a short demonstration of how to copy files with Rsync and include the source files ACL’s. Just running the following will not include ACLs but will include the standard POSIX permissions and ownership. rsync -avz /source/* /destination/ To include ACL’s, use the following: rsync -aAvz /source/* /destination/

AGIX Linux
AGIX Linux
Blog Post
  • An excellent video on the current state of US voting systems and how threats are being discovered and discussed among experts.

AGIX Linux
AGIX Linux
Blog Post
  • This article explains how to configure OpenVPN on pfSense as well as some hints for the client. We’re using version 2.3.2 (the current version is 2.3.3_1). OpenVPN is one of (if not the) best VPN’s available. This is according to the “Snowden” documents. Log into the pfSense portal. Notice the

AGIX Linux
AGIX Linux
Blog Post
  • Sometimes it’s necessary to copy a directory structure without copying the actual files. This is a two step process as i’ve demonstrated below. However, i bet you can do it with a single command using “find” and its “exec” feature. In this example we’ll copy the “/etc” directory structure. cd

AGIX Linux
AGIX Linux
Blog Post
  • 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

AGIX Linux
AGIX Linux
Blog Post
  • 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.

AGIX Linux
AGIX Linux
Blog Post
  • 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

AGIX Linux
AGIX Linux
Blog Post
  • Share This: 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

AGIX Linux
AGIX Linux
Blog Post
  • Share This: 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

AGIX Linux
AGIX Linux
Blog Post
  • Share This: 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:

AGIX Linux
AGIX Linux
Blog Post
  • 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

AGIX Linux
AGIX Linux
Blog Post
  • This article shows how to copy role permissions from one server to another. In other words, if you’re moving a database from one server to another and you want permissions to come across too, you’ll be interested in this article. if you have trouble wit this, make sure you run

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