Technical guides for every NetTools.tech tool — what it does, how it works, how to read the results and how to troubleshoot — plus articles for system administrators, DevOps engineers and security professionals.
Tool guideConversion & Calculation Tools
What an IP address is as a number, how the NetTools.tech converter parses dotted, integer, hex, binary and IPv6 input, and what every output form — from in-addr.arpa names to IPv4-mapped IPv6 — means.
Tool guideDNS & Domains
What PTR records are, how an IPv4 or IPv6 address becomes an in-addr.arpa or ip6.arpa name, who controls reverse DNS, and why it matters for mail servers and logs.