Plan 9 /sys/man/8/ipok

NAME

ipok – verify that an IP address belongs to a country approved of by the US government

SYNOPSIS

aux/ipok IP ...

DESCRIPTION

Ipok consults various databases, including making whois queries, to determine what country a given IP address belongs to and compares that against a list of known `bad guys'. For each IP, ipok will print a line of the form

okay address–range country address–range–name owner [other ...]

where okay will be ok or bad.

EXAMPLES

See if mince is in a `terrorist' country.
% aux/ipok 135.104.24.16 ok 135.104.0.0–135.104.255.255 US LUCENT–135–104–0–0–B \ 'Bell Laboratories/Lucent Technologies ' (cached)

See if inet is in a `terrorist' country.
% aux/ipok 2620:17a:4:1::1 ok 2620:17a::–2620:17a:fff:ffff:ffff:ffff:ffff:ffff \ US ALCATEL–LUCENT Alcatel–Lucent

FILES

/sys/lib/ipok.cache pre–loaded entries

SEE ALSO

ipokfs(4)
US State Department's list of countries designated as supporting terrorist activities, defined by the Export Administration Act, section 6(j), listed for example in
http://www.bis.doc.gov/Licensing/BIS_Exports.pdf.

Copyright © 2025 Plan 9 Foundation


	ipok – verify that an IP address belongs to a country approved of by the US government


	ipokfs(4) US State Department's list of countries designated as supporting terrorist activities, defined by the Export Administration Act, section 6(j), listed for example in `http://www.bis.doc.gov/Licensing/BIS_Exports.pdf`.