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Network protocols

What is DHCP?

In the early years of the internet, it was common to simply use a spreadsheet to manually assign and track IP addresses. We’d be given a generous pool of IP addresses that were not so widely distributed, and most network devices were desktops…

Ryan LaFlammeSep 13, 2022
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Network monitoring

Agent vs Agentless Monitoring: Which is Best?

Agent-based and agentless monitoring are the two main approaches network monitoring tools use to capture and report data from network…

Ryan LaFlammeJul 21, 2022
NVDR Report
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Network protocols

Network Basics: What Is SNMP and How Does It Work?

While the SNMP architecture is simple, the data hierarchy the protocol uses can seem complicated if you’re not familiar with it.…

Dana OrosJun 29, 2022
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Network protocols

Network Basics: Spanning Tree Protocol

For new networkers, Spanning Tree Protocol can be intimidating. But don’t worry! In this easy-to-understand intro, Ethan Banks walks…

Ethan BanksJun 9, 2022
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Network protocols

Network Basics: What is EIGRP?

There are many different routing protocols to choose from, but folks in a predominantly Cisco network environment often choose Enhanced…

Ethan BanksMay 5, 2022
Command Center (N-Able)
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Network protocols

What Else But SNMP?

Most network engineers have a love/hate relationship with the Simple Network Management Protocol (SNMP). Ok, maybe it’s more like…

Destiny BertucciApr 7, 2022
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Network protocols

What’s next for the Internet of Things?

IoT devices seem to be ubiquitous, but the truth is we’re not nearly there yet. In fact, IoT Analytics continues to predict steady…

Ryan LaFlammeMar 29, 2022
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Network protocols

4 Common VPN Types (And When to Use Them)

Virtual private networks (VPNs) are a straightforward idea. The trick comes in knowing the different VPN types and when to use which.…

Ethan BanksFeb 16, 2022
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Network protocols

The Future of Private Addresses: Goodbye NAT, Hello IPv6

So how do we get from IPv4 to IPv6—which we all agree has to happen—when there’s still a raging debate about one of the biggest…

Steve PetryschukNov 9, 2021
Secure IT Ops
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Network protocols

What is QUIC? Everything You Need to Know

When I hear QUIC, my immediate reaction is, “The QUICk brown fox jumps over the lazy dog.” That sentence has been ingrained in me…

Steve PetryschukSep 14, 2021
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Network protocols

Classful and Classless Addressing Explained

Of course, as anyone who has studied for a networking certification can tell you, there is a significant complexity increase between…

Steve PetryschukJul 27, 2021
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Network management

The What and The Why of TLS Inspection

Let’s look at what the process of a secure connection through TLS entails, how it can be used to see past “invisible traffic” and…

Steve PetryschukMay 25, 2021
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Network protocols

SNMPv2 vs. SNMPv3: An SNMP Versions Comparison Table

The most significant difference between SNMP v2 and v3 is the level of security for the user on the network. Let's look at an SNMP versions.

Steve PetryschukMay 19, 2021
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Network protocols

What is 802.1X Authentication?

Want to understand network access control, and authentication 802.1X at the base layer? This article goes through all the ins and outs of…

Steve PetryschukApr 27, 2021
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Network protocols

What is an ARP Table?

Let's peer under the hood of how ARP tables help us see data similar to the "show arp" or "arp-a" command without having to open a…

Steve PetryschukApr 10, 2021
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Network protocols

sFlow vs NetFlow: What’s the Difference?

Two of the most common flow protocols you’ll run into are NetFlow and sFlow, and these are some of the differences between the two to…

Andrés TapiaJul 28, 2020
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Network management

6 Common Spanning Tree Mistakes and How to Avoid Them

Spanning tree is a Good Thing. It saves you from loops, which will completely shut down your client's network. But it has to be…

Kevin DooleyOct 4, 2016
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Network management

Network Basics: What Is Link Aggregation & How Does It Work?

Link aggregation is a way of bundling a bunch of individual Ethernet links together so they act like a single logical link. Learn more on…

Kevin DooleyJun 6, 2016
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Network management

Setting Up a Redundant Internet Connection With BGP

One of the most critical network links in any organization is the link to the Internet. Here’s how to configure a redundant Internet…

Ethan BanksDec 2, 2014
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Network management

Networking Basics: OSPF Protocol Explained

OSPF is one of the few network protocols you can count on being available just about anywhere. Learn the principles of OSPF protocol, and…

Ethan BanksNov 4, 2014