%% You should probably cite draft-hethmon-mcmurray-ftpext-ftp-hosts instead of this I-D. @techreport{ietf-ftpext2-hosts-05, number = {draft-ietf-ftpext2-hosts-05}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-ftpext2-hosts/05/}, author = {Paul Hethmon and Robert McMurray}, title = {{File Transfer Protocol HOST Command for Virtual Hosts }}, pagetotal = 22, year = 2011, month = dec, day = 7, abstract = {The File Transfer Protocol, as defined in RFC 959 {[}RFC0959{]}, does not provide a way for FTP clients and servers to differentiate between multiple DNS names that are registered for a single IP address. This document defines a new FTP command that provides a mechanism for FTP clients and servers to identify individual virtual hosts on an FTP server.}, }