How does DNS work? Protecting your privacy online is a hot topic for many. Though many websites have transitioned from HTTP to HTTPS, allowing web traffic to be secured, this does not protect your overall privacy. The internet still relies on older protocols to ensure you are accessing the right Read more…
Over the last few weeks, Russian hackers have coordinated attacks against personal, government, corporations, and Internet Service Providers. These attacks are currently being directed toward IoT devices, home based modems, and corporate routers, switches and firewalls. This is in an attempt to create an organized attack against the US and Read more…
It was just announced today that 9 Iranians were involved in hacking 144 universities. They targeted professors and research departments in order to gain access to vital intel. In today’s realm of cybersecurity this does not surprise me. Many small to even larger institutions do not adequately protect they’re network, Read more…
In case you hadn’t heard, today is “World Password Day.” This would be a good time to go out and change your passwords. Need help on picking a new password? Head out to https://passwordday.org/ where Betty White provides best practices for cybersecurity. If you do not think Betty provided everything Read more…
Have you had your online identity stolen? Had your Twitter or Facebook account compromised? Do you use the same username and password across multiple sites on the Internet? Every day, hackers are exposing weak security practices of not only company websites but also attacking online identities putting you at risk. Read more…
Malware can be delivered many different ways from either advertisements (remember the NY Times malicous ads?) to hacked websites that contain malicious code. One technique designed to help curb these infections is through the use of DNS blackhole. This technique will redirect your internal users to an internal website to block Read more…
In part two of this series we’re going to discuss adding firewall rules to the router. Everyone knows that adding ingress (or incoming) firewall rules is important to securing your network. However, the same can be said for adding egress rules for traffic leaving your network. For instance, aside from Read more…
This will be part 1 in a series of configuring CentOS/Red Hat 6 as a secured firewall. Though I am a huge fan of pfSense (which can be found here pfSense), I wanted to build my own from scratch. So, the first part of this series will consist of setting up Read more…
As a part of the sys admin’s job, it is important to take a few extra minutes to go through and properly secure a newly installed Linux server. These steps include enabling SELinux on the machine, configuring the firewall, and setting user permissions. There are however additional steps one should Read more…
GnuPG is used to encrypt and sign email messages and files. First you need to create the GPG key: Generating Keys ———————————————————– $ gpg –gen-key ———————————————————– Select option 5 for RSA and then type the encryption level. ———————————————————– Please select what kind of key you want: (1) DSA and Elgamal (default) (2) Read more…