fjorker(8) fjorker(8) NAME fjorker - minimalistic ICMP echo request/reply implementation SYNOPSIS fjorker host fjorker --version DESCRIPTION fjorker is a secure-by-default ICMP echo request/reply implementation that follows OpenBSD's philosophy of minimalism and security. Unlike traditional ping implementations, fjorker: * Minimizes information disclosure about the source host * Uses random identifiers instead of process IDs * Validates sequence numbers in responses * Has minimal code base for better security EXAMPLES fjorker 1.1.1.1 Ping 1.1.1.1 using ICMP echo requests fjorker --version Display version information EXIT STATUS The fjorker utility exits 0 on success, and >0 if an error occurs. SEE ALSO ping(8) STANDARDS The fjorker utility implements ICMP echo request/reply as described in RFC 792. HISTORY The fjorker utility first appeared in 2025.