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what is difference between www vs www1, www2, www3 etc [closed] Asked 15 years, 3 months ago Modified 6 years ago Viewed 39k times
0 There's not only www8 or www6. There www1, www2, www3, and so on. These hosts are just different servers for the vast, world wide web.
Why are some websites spread across www2, www3 sub-domains whilst others manage scaling without it? Asked 16 years, 9 months ago Modified 9 years, 4 months ago Viewed 22k times
Por que alguns domínios usam www2 e www3 no prefixo? Como por exemplo: www2.exemplo.com www3.exemplo.com Notei que alguns sites como do governo usam, mas não sei o motivo ao certo.
Ele geralmente consiste de uma unidade central que monitora a carga dos outros servidores, e distribui as requisições enviadas a um servidor que tem a menor carga no momento. www3 é um daqueles servidores que recebem requisições Web do controlador central.
Web farms and load balancing Names like www1, www2, www3 are often used for members of a load-balancing farm of web-servers for popular web-sites where the workload is too much for a single server or where multiple servers are used to proivide continuity of service in the event of failure of a single server. An example of how it works A front-end server at www.example.com initially receives ...
1 It is the third-level domain (see Domain name. There was a time where it designated a physical server: some sites used URLs like www1.foo.com, www3.foo.com and so on.