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Facebook’s historic outage, explained

Kentik

Yesterday the world’s largest social media platform suffered a global outage of all of its services for nearly six hours. The result was that users worldwide were unable to resolve any domain belonging to Facebook, effectively rendering all of the social media giant’s various services completely unusable. So what happened?

TCP 145
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What is a TCP Port: Different Between TCP and UDP Ports

NW Kings

Understanding TCP ports is essential for managing network traffic and ensuring effective communication. But what is a TCP port? This blog will delve into what a TCP port is, how it works, its significance in networking, and the different types of ports, including well-known and dynamic ports. What is a TCP Port?

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Making messaging interoperability with third parties safe for users in Europe

Engineering at Meta

Third-party servers are responsible for hosting any media files their client applications send to Meta clients (such as image or video files). After receiving a media message, Meta clients will subsequently download the encrypted media from the third-party messaging servers using a Meta proxy service.

Protocol 135
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Resilience and Redundancy in Networking

Kentik

Core Concepts Resilience in networking is the ability of a network to withstand and quickly recover from failures or changes in its environment. This includes the ability to: Dynamically adjust to changes in network topology Detect and respond to outages Route around faults in order to maintain connectivity and service levels.

Network 52
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How Can Organizations Improve Network Performance?

CATO Networks

Often, when speaking with network managers responsible for infrastructure within a multinational or global enterprise, I hear first-hand accounts of the impact of sluggish network performance. Similarly, slow networks can lead to painfully slow file transfers for large media files or CAD (computer-aided design).

Network 52
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How to find applications with NetFlow

Kentik

Back in the 1990s, NetFlow was introduced on Cisco routers as a means to collect information about IP network traffic as it enters or exits an interface. Since then, network flows have been one of the best ways to gain insight into traffic. Source port for UDP or TCP, 0 for other protocols. Source IP address. IP protocol.

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News in Networking: New Data Centers, Same Old Internet Trolls

Kentik

Google sped up TCP/IP. Now SDxCentral reports the teleco could be planning to take on Cisco and Juniper with its Virtual Network Services software. 10 Bad Habits Network Administrators Should Avoid At All Costs (TechRepublic). What shouldn’t network administrators do? DDoS attacks spiked, targeting gaming companies.