虚包：httpd
This is a virtual package. See the Debian policy for a definition of virtual packages.
负责填实 httpd 的软件包
- apache2
- Apache HTTP Server
- lighttpd
- fast webserver with minimal memory footprint
- merecat
- Embedded web server
- micro-httpd
- really small HTTP server
- mini-httpd
- Small HTTP server
- nginx
- 小巧、强大、可扩展的网络/代理服务器
- ocsigenserver
- web server of the Ocsigen project
- tntnet
- modular, multithreaded web application server for C++
- webfs
- 适用于静态内容的轻量级 HTTP 服务器
- yaws
- High performance HTTP 1.1 webserver written in Erlang