COSESAI

DNS Zone File Record Builder Field Guide: When Eight Flags, One Trailing-Dot Rule, and Validation on Every Line Decide Whether Your Zone Survives a Migration

By xiezixing 2026年9月8日

A field guide to building RFC 1035 DNS zone files: one-record-per-line syntax, SOA defaults, mail-auth TXT records, SRV/TLSA traps, and why plain text beats the registrar panel.

未分类

DNS Query Tool Field Guide: When Seven Record Types Reveal What Your Domain Is Actually Doing

By xiezixing 2026年8月26日

A DNS query is rarely one question. Seven record types stack behind one line of text, and the answer you actually need almost never sits in the record you thought to ask for.

未分类

7 Free Network & IP Tools Every Developer Needs in 2026

By xiezixing 2026年3月23日

Every developer hits that moment. You're deep in a network config, debugging a subnet mask,…