The best replacement for virtual host is reverse proxy.

The best alternatives to virtual host are rated as following:
★★★★★  reverse proxy
★★★★  namevirtualhost
★  physical host

Your alternative for virtual host is not listed? Suggest!
Speaking about virtual host, one probably shouldn't forget about apache.

Other search terms related to virtual host and their ratings are:
★★★★★ apache
★ apache2
You have in mind a companion for virtual host and it is not yet here? Propose!



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virtual host
reverse proxy
namevirtualhost