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DNSchecker vs netfilter

A side-by-side look at DNSchecker and netfilter. For an in-depth review of either product, follow the links below.

DNSchecker

DNSchecker

Network & Admin

DNSchecker is a free open-source tool for checking the configuration of DNS servers and mail servers. It can validate records like MX, NS, SOA, SPF, and more across multiple DNS servers.

dnsserverconfigurationvalidation
netfilter

netfilter

Network & Admin

Netfilter is an open-source framework in the Linux kernel that allows network packet filtering, network address translation, and other packet mangling. It is a critical part of Linux's networking stack.

firewallpacket-filteringnetwork-address-translation