Gzpeek: Tool to Parse Gzip Metadata
Summary
The post introduces gzpeek, a command-line tool for inspecting gzip metadata as defined in RFC1952. It explains what metadata fields exist in gzip headers (OS, MTIME, FTEXT, XFL, NAME, COMMENT, and extra subfields) and shows how gzpeek can reveal this information from a gzip stream, illustrating both its utility and potential metadata leakage concerns.