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Diffstat (limited to 'doc/src/sgml/client-auth.sgml')
| -rw-r--r-- | doc/src/sgml/client-auth.sgml | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/doc/src/sgml/client-auth.sgml b/doc/src/sgml/client-auth.sgml index 4a8aea4d3a9..a6a96c180df 100644 --- a/doc/src/sgml/client-auth.sgml +++ b/doc/src/sgml/client-auth.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/client-auth.sgml,v 1.113 2008/11/20 20:45:29 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/client-auth.sgml,v 1.114 2008/11/28 14:26:58 mha Exp $ --> <chapter id="client-authentication"> <title>Client Authentication</title> @@ -595,6 +595,19 @@ local db1,db2,@demodbs all md5 There is no restriction regarding how many database users a given operating system user can correspond to, nor vice versa. </para> + <para> + If the <replaceable>system-username</> field starts with a slash (<literal>/</>), + the contents of the field is treated as a regular expression. This regular + expression supports a single capture, which can be back-referenced as + <literal>\1</> (backslash-one). This allows the mapping of different syntax + names with a single line. + <programlisting> +mymap /(.*)@mydomain.com \1 +mymap /(.*)@otherdomain.com guest + </programlisting> + will "remove" the domain part for users with system usernames @mydomain.com, and + allow all users from @otherdomain.com to log in as guest. + </para> <para> The <filename>pg_ident.conf</filename> file is read on start-up and |