Annotated edit history of
NSS version 4, including all changes.
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DanielLawson |
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[Acronym] for __N__ame __S__ervice __S__witch |
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AristotlePagaltzis |
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The [NSS] is a glibc mechanism for providing multiple methods of accessing common databases such as the password or hosts database. It is commonly used to provide an interface to both local <tt>/etc/passwd</tt> (and shadow) files, and a remote authentication mechanism such as [NIS] or [LDAP]. |
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JohnMcPherson |
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The config file for specifying backend methods for each database is /etc/nsswitch.conf -- see the nsswitch.conf(5) ManPage. |
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DanielLawson |
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AristotlePagaltzis |
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The databases available for configuration within the [NSS] are: |
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DanielLawson |
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AristotlePagaltzis |
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aliases(5):: |
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Mail aliases |
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ethers(5):: |
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Ethernet numbers, |
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group(5):: |
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Groups of users |
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hosts(5):: |
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Host names and numbers. |
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netgroup(5):: |
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Network wide list of host and users |
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networks(5):: |
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Network names and numbers |
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protocols(5):: |
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Network protocols |
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passwd(5):: |
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User passwords |
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rpc(5):: |
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Remote procedure call names and numbers, |
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services(5):: |
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Network services |
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shadow(5):: |
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Shadow user passwords |
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Most of these databases are normally only configured for flatfile access: protocols and services, for example, look up only in <tt>/etc/protocols</tt> and <tt>/etc/services</tt>. You could serve these from [LDAP], or from a [DBM] file, or from an [SQL] DataBase, or so on. |
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DanielLawson |
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See http://www.delorie.com/gnu/docs/glibc/libc_591.html for more information on the glibc [NSS] |
