%general-entities; ]> Whois is a client-side application which queries the whois directory service for information pertaining to a particular domain name. Download (HTTP): Download (FTP): Download size: &whois-size; Estimated Disk space required: &whois-buildsize; Estimated build time: &whois-time; Install Whois by running the following commands: make && make prefix=/usr install The Whois package contains whois. whois is a client-side application which queries the whois directory service for information pertaining to a particular domain name.