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What Is a Next-Generation Firewall?

eSecurity Planet

A next generation firewall (NGFW) performs deep packet inspection to check the contents of the data flowing through the firewall. Unlike more basic firewalls that only check the header of data packets, NGFWs examine and evaluate the payload data within the packet. Who Needs a Next-Gen Firewall?

Firewall 113
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What Is Stateful Inspection in Network Security? Ultimate Guide

eSecurity Planet

Stateful inspection is a firewall feature that filters data packets based on the context of previous data packets. This important feature uses header information from established communication connections to improve overall security. Table of Contents Toggle How Does Stateful Inspection Work? Stateless protocols (UDP, HTTP, etc.)

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What Is DNS Security? Everything You Need to Know

eSecurity Planet

The DNS protocol was designed for use within a firewall on a secure network, and by default will communicate in plain text. A modern computing environment includes branch offices, remote workers, and mobile devices that must reach DNS servers from outside the firewall.

DNS 109
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How to Prevent DNS Attacks: DNS Security Best Practices

eSecurity Planet

Design robust server architecture to improve redundancy and capacity for resilience against failure or DDoS attacks. Firewalls should be hardened to close unneeded ports. Implement rate limiting to harden against DDoS and DNS tunneling attacks. to help prevent its cache from being poisoned by hackers.

DNS 113
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What Is Packet Filtering? Definition, Advantages & How It Works

eSecurity Planet

Packet filtering is a firewall feature that allows or drops data packets based on simple, pre-defined rules regarding IP addresses, ports, or protocols. Once a type of firewall, packet filtering now provides a fundamental feature of nearly all firewalls and some network equipment (routers, smart switches, etc.).

Firewall 109
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5 Linux malware families SMBs should protect themselves against

Malwarebytes

There’s no shortage of reasons why an SMB might use Linux to run their business: There are plenty of distros to choose from, it’s (generally) free, and perhaps above all — it’s secure. But unfortunately, there’s more to Linux security than just leaning back in your chair and sipping piña coladas. Cloud Snooper. How it works.

Malware 129
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2024 State of Cybersecurity: Reports of More Threats & Prioritization Issues

eSecurity Planet

Vendor reports note huge volume of attacks on local and public infrastructure, such as: CrowdStrike: Monitored hacktivist and nation-state distributed denial of service (DDoS) attacks related to the Israli-Palestinian conflict, including against a US airport. 50,000 DDoS attacks on public domain name service (DNS) resolvers.