Patterns

A pattern consists of zero or more non-white space characters, '*' (a wildcard that matches zero or more characters), or '?' (a wildcard that matches exactly one character). For example, to specify a set of declarations for any host in the ".co.uk" set of domains, the following pattern could be used:

Host *.co.uk

The following pattern would match any host in the 192.168.0.[0-9] network range:

Host 192.168.0.?

A pattern-list is a comma-separated list of patterns. Patterns within pattern-lists can be negated by preceding them with an exclamation mark ('!'). For example, to allow a key to be used from anywhere within an organization except from the "dialup" pool, the following entry (in the authorized_keys file) could be used:

from="!*.dialup.example.com,*.example.com"