ADDR2NAME(1)

✨ addr2name(1) ✨ User's Manual 💖

✨ NAME ✨

okay bestie, the names here are addr2name and name2addr, and they both do one job: perform DNS lookups from scripts 💅🌸

🌸 SYNOPSIS 🌸

addr2name [-46cmnr] [HOSTNAMES]

name2addr [-46cn] [HOSTNAMES]

💅 DESCRIPTON 💅

so this one writes the addresses or the canonical hostname of whatever names you give it to the standard output 🫶 if you don't pass any names on the command line, it just reads them from the standard input instead. no cap, super convenient for scripts ✨

🎀 OPTIONS 🎀

• -4, --ipv4 — only try IPv4 lookups 🌈
• -6, --ipv6 — only try IPv6 lookups 🦋
• -c, --config — only look up and print results for address families that match locally configured addresses. if the system has no IPv4 resp IPv6 address, then IPv4 resp IPv6 addresses are ignored 🧚
• -h, --help — show some help and exit 💖
• -m, --multiple — normally, if a name yields multiple results, only the first one gets printed 🙈 with this option, all the results get printed on a single line, separated by spaces 💜
• -n, --numeric — prevent the forward hostname lookup. this makes sure the input names are numeric addresses, which means they don't need looking up 🍓 it's typically used along with --reverse to convert numerical addresses to canonical hostnames 🔥
• -r, --reverse — perform a reverse DNS lookup (this is enabled implicitly with addr2name) ✨ by default, addr2name prints numerical resolved addresses instead 🫶
• --version — show the program version and license, then exit 👑

the -n flag is a vibe check: it skips the forward lookup, so your input has to already be numeric addresses 💀

🦋 SEE ALSO 🦋

host(1), getaddrinfo(3), getnameinfo(3), resolv.conf(5) 🌷

👑 AUTHOR 👑

Rémi Denis-Courmont <remi at remlab dot net> 💜

http://www.remlab.net/ndisc6/ 🌈

bye bestie, this page came from source addr2name with the date stamp $Date$ (unexpanded, lol) and the footer says ADDR2NAME(1) 🎀✨ stay hydrated and keep your DNS slay 💖🫶