Checking your email flow periodically is very important. You can test your SPF / DKIM and your DMARC settings but the best way is to using the most popular opensouce spam filtering software. Spam Assassin is by far the most popular tool to use to check your spam score. The following video will show you just how easy it is to get your spam score for your domain email or organization email.
In deploying DMARC, your ultimate goal will be to start with a "none" (p=none) policy that only monitors email flow, and then eventually change to a policy to quarantine (p=quarantine) and then reject (p=reject) that will handle all unauthenticated messages properly.
We at Clustered Networks have just developed and launched a new NMAP Cheatsheet with Examples PWA (Progressive Web App) and we feel it is by far the best NMAP Cheatsheet on the Web today. IT not only describes the various switches that can be used in NMAP, but also give real life examples of how you can use NMAP.
You've just written an awesome script! Now you want to setup a cronjob. How do you determine if the script is running each day / week / month or on schedule? This video will show you how to monitor your cronjobs to ensure that they are running on time and on schedule.
Headless Server - The Easy Way! Setting up a home server and cannot boot without a monitor? This video describes a very easy way to fix the problem using an HDMI Dummy Adapter.
Common Certbot Commands - This is a list of common certbot commands that we use regularily
This shell script will submit your sitemap files to google and bing search engines on a regular basis simply edit the urls you wish to submit and setup a cronjob to submit daily or weekly as required.
There are a number of ways to drive traffic to your website. You can go PAID Website Marketing or the FREE Website Marketing method. Paid method includes buying traffic from Google with "Google Adwords" or from Facebook / Instagram.
The following video will show you how to protect your domain from phishers and spammers pertaining to come from your domain. We will show you how to implement MX, PTR, SPF, DKIM and DMARC properly so that it will be very difficult for phishers and spammers to send email appearing to come from your company.
The following videos are tutorials that will help you getting around the Linux Command Line. These tools are invaluable for using a Linux Operating System such as Debian or Ubuntu. These commands can be used on both Linux Desktop as well as Linux Servers.