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What does nslookup do? A practical guide
Nslookup is a network troubleshooting utility that queries Domain Name System (DNS) servers to retrieve information about domain names and IP addresses. This guide explains how the nslookup command wo...
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What is Conti ransomware, and how does it work?
Few ransomware operations have achieved the notoriety and scale of Conti. Between 2020 and early 2022, the group reportedly earned hundreds of millions of dollars while attacking hospitals, government...
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What is FileRepMalware, and should you remove it?
FileRepMalware is a detection label used by some cybersecurity tools when they encounter a file with little or no established reputation. It means the software doesn’t have enough historical data to...
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Seeing “Your IP has been temporarily blocked”? Here’s how to fix it
One moment, a website loads normally; the next, it refuses to connect, often with little explanation of what went wrong. That’s usually when you see the “Your IP has been temporarily blocked” me...
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What is QUIC? The QUIC network protocol explained
When you load a webpage, your browser has to connect to a server, set up encryption, and then start sending and receiving data. These steps are governed by a network protocol. For most web traffic, th...
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How to change DNS settings on any device
By default, your device uses the Domain Name System (DNS) servers provided by your internet service provider (ISP), but it’s not your only option. Switching to a different DNS server could improve w...
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What is a DNS flood attack? Understanding its impact and how to prevent it
A DNS flood attack is a type of distributed denial-of-service (DDoS) attack that targets the Domain Name System (DNS), the service responsible for translating domain names into IP addresses. By overwh...
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What is cache, and should you clear it
Clearing the browser or app cache is a common troubleshooting step when websites load slowly, look wrong, or don’t update properly. It can help in some cases, but it isn’t always necessary. Cache ...
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What is a point-to-site VPN, and how does it work?
Today, many people work remotely or have a hybrid work arrangement, and teams are often spread across multiple cities or even countries. Therefore, organizations need a way to let employees access int...
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What is SysJoker malware? Risks, detection, and prevention
Some malware doesn’t cause immediate disruption or obvious signs of compromise. It runs in the background and resembles normal system activity, which can delay detection. When a threat isn’t ident...