Tim Keary

Tim Keary

Network Security and Administration Expert

Tim writes extensively on network administration topics helping businesses and entrepreneurs to keep their data and assets protected. He was previously the cybersecurity editor at VentureBeat and has been freelance since 2017.

Articles by Tim
SNMP MIBs & SNMP OIDs explained
A look at SNMP MIBs and SNMP OIDs. We look at what makes these protocols work and how they fit within SNMP architecture. We also include free trial links to useful tools. SNMP is used to monitor SNMP-enabled devices and view how their performance is holding up.
By Tim Keary in Net Admin on November 25, 2024
Network Topology: 6 Network Topologies Explained & Compared
In this guide we will discuss network topology and also discuss the advantages and disadvantages of each type of network topology.
By Tim Keary in Net Admin on November 14, 2024
Dos vs DDoS Attacks: The Differences and How To Prevent Them
A successful DDoS attack not only puts you out of action for a substantial time period but can even cause certain systems to malfunction. Every day you’re out of action piles up costs you would otherwise be without. In this article, we’re going to look at the dangers of DoS vs DDoS to see what the difference is.
By Tim Keary in Net Admin on December 2, 2024
A Guide to Spoofing Attacks and How to Prevent Them
Cyber attacks come in various forms, from brute force DDoS attacks to crippling infections but few cyber threats are as underhanded as spoofing attacks. In this article we’re going to look at spoofing attacks and the measures you can take to prevent them from stealing your data.
By Tim Keary in Net Admin on December 17, 2024
CPU Monitor Guide & The Best CPU Monitoring Tools Reviewed
There are 101 different ways to monitor the performance of network devices but few techniques are as effective as monitoring CPU metrics. We'll show you the best CPU monitoring tools for your network.
By Tim Keary in Net Admin on October 20, 2025
The Best Free Network Monitoring Tools for SMBs & NGOs
Even small networks can bring out hundreds of connections that need to be monitored. Modern network monitoring tools have the ability to maintain networks, servers, and applications. But how much network monitoring power can you get for free? Let's find out.
By Tim Keary in Net Admin on February 24, 2026
The Best Uptime Monitoring Software & Tools
Uptime monitoring ensures that your website is constantly available to serve your customers. Discover the best tools for the job.
By Tim Keary in Net Admin on February 14, 2025
The Best Amazon Web Services (AWS) Monitoring Services & Tools
Companies worldwide have recognized that checking up on the performance of cloud services is no less important than managing legacy infrastructure. Learn about the best AWS monitoring tools & services.
By Tim Keary in Net Admin on July 17, 2025
How to Find and Create SNMP Community Strings in Windows and Linux
Find out what SNMP strings are, how to configure and enable them along with useful tips and guidelines. We show you how to find and create SNMP community strings in Windows and Linux.
By Tim Keary in Net Admin on November 21, 2024
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