<networking> An archive site or website which keeps a copy of some or all
files at another site so as to make them more quickly available and to reduce
the load on the source site.
It is generally best to use the mirror that is physically closest to you as this
will usually give the fastest download.
Such mirroring is usually done for specific whole directories or files on a
specific remote server as opposed to a cache or proxy server which keeps copies
of everything that is requested via it.
For example, src.doc.ic.ac.uk is the main UK mirror for the GNU archive at
MIRFAC « mirror « mirroring « mirror site »
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