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How To Fix MySQL Table mysql.plugin Doesn’t Exist

I recently had an issue on a MySQL Database Server where running apt-get upgrade to upgrade the MySQL package on the server would result in an error about the table 'mysql.plugin' doesn't exist. I believe the issue started on this server after I changed the datadir in my.cnf and I moved the database directory to [...]

By | January 20th, 2017|Categories: System Administration|Tags: , , , , , , , , |0 Comments

How To Harden MongoDB Server

MongoDB is "a document database that provides high performance, high availability, and easy scalability". In this chapter of our InfoSec System Hardening series, we'll walk you through some of the steps you can take to harden your MongoDB database server. You can refer to the MongoDB Server Documentation for more details about the commands and [...]

By | January 17th, 2017|Categories: Security, Server Hardening, System Administration|Tags: , , , , , |0 Comments

How To Harden An NGINX Web Server

The next segment in our InfoSec System Hardening series is how to harden an NGINX Web Server. NGINX is an alternative to the popular Apache Web Server on Linux. In this article, we'll show you some of the basics you'll want to take to secure your NGINX Web Server. To get started, you can follow [...]

By | January 16th, 2017|Categories: Security, Server Hardening, System Administration|Tags: , , , , , |0 Comments

How To Harden A MySQL Server

As with any server, whether it be a web server, file server, database server, etc, hardening is an important step in information security and protecting the data on your systems. This guide will show you some basics when it comes to hardening a MySQL Server. Most of these changes are simple lines to add into [...]

By | January 15th, 2017|Categories: Security, Server Hardening, System Administration|Tags: , , , , , |0 Comments

Add User or Group as Local Administrator on Domain Controller

As a Systems Administrator or Engineer, you might run into a situation where you need to add a user or service account as a Local Administrator on a Domain Controller. Unfortunately, Domain Controllers don't have the Local Users and Groups databases once they're promoted to a Domain Controller. Depending on what your needs are, you [...]

By | January 10th, 2017|Categories: Windows|Tags: , , , , , , , |0 Comments

Fix: Rotation Lock Grayed out on Windows 10

If you own 2-in-1 Windows 10 device, like a Lenovo Yoga, rotation is one of the basic features that you’re going to use (or maybe you'll want to disable it). Unfortunately, users have reported the Rotation Lock option is grayed out and that rotation isn’t working on their devices. In my case, my Lenovo Yoga [...]

By | January 9th, 2017|Categories: Tech Tips, Windows|Tags: , , , , , , |0 Comments

Tutorial: Upgrading the firmware & FUS on a Cisco 5508 Wireless LAN Controller

In this tutorial, we will be walking you through the upgrade process of a Cisco 5508 Wireless LAN Controller for the firmware and and FUS (Field Upgrade Software). You'll want to download the latest versions using your Cisco account. You'll want to setup a TFTP server on your computer to upload/download files from your Cisco [...]

By | December 28th, 2016|Categories: Cisco|Tags: , , , , , , , , , |0 Comments

Fix Windows Update Errors Troubleshooting Tool

Microsoft has released an online troubleshooting tool to help you resolve your Windows Update errors if you're running Windows 10, Windows 8.1, or Windows 7. If you're running Windows 8, it is recommended that you upgrade to at least Windows 8.1. The online tool also doesn't support Windows Server editions yet, such as Windows Server [...]

CVE-2016-8655 Five-Year-Old Linux Kernel Local Privilege-Escalation Vulnerability Discovered

A five-year-old serious privilege-escalation vulnerability has been discovered in the Linux kernel that affects almost every distro of the Linux operating system, including Red Hat and Ubuntu. Back in October, a nine-year-old privilege-escalation vulnerability, dubbed Dirty COW was discovered in the Linux kernel that affected every distro of the open-source operating system, including Red Hat, [...]

By | December 7th, 2016|Categories: Linux, Security|Tags: , , , , , , |0 Comments

How To Reset Active Directory User Password Expiration Date

Active Directory account passwords are usually set to expire (for example: every 90 days) in most organizations. Configuring an AD account with PasswordNeverExpires is not recommended due to security. There might be a time where you need to extend an active directory account’s current password expiration date without changing the password expiration policy or changing [...]

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