sentences:  Varnish is focused exclusively on HTTP, unlike other proxy servers that often support FTP, SMTP and other network protocols.The project was initiated by the online branch of the Norwegian tabloid newspaper "Verdens Gang".The architect and lead developer is Danish independent consultant Poul-Henning Kamp (a well-known FreeBSD developer), with management, infrastructure and additional development originally provided by the Norwegian Linux consulting company Linpro.