dnsblcheck - check ip address in DNS blacklist database

dnsblcheck -d server IP

dnsblcheck checks existence of IP in the database of DNS blacklist server server.

-d server
Hostname or IP address of DNS blacklist server

dnsblacklist returns 0 if IP is not blacklisted, 1 if blacklisted. It returns 100 for wrong usage and 111 for temporary system failures.