Network Information Service (NIS) nommé aussi Yellow Pages est un protocole client serveur développé par Sun permettant la centralisation d'informations sur un réseau UNIX.
Son but est de distribuer les informations contenues dans des fichiers de configuration contenant par exemple les noms d'hôte (/etc/hosts), les comptes utilisateurs (/etc/passwd), etc. sur un réseau.
Un serveur NIS stocke et distribue donc les informations administratives du réseau, qui se comporte ainsi comme un ensemble cohérent de comptes utilisateurs, groupes, machines, etc.
An NIS/YP system maintains and distributes a central directory of user and group information, hostnames, e-mail aliases and other text-based tables of information in a computer network. For example, in a common UNIX environment, the list of users for identification is placed in /etc/passwd, and secret authentication hashes/etc/shadow. NIS adds another “global” user list which is used for identifying users on any client of the NIS domain. in
In many environments, other directory services — arguably more modern and secure than NIS, such as LDAP — have come to replace it. For example,
On large LANs, DNS servers may provide better nameserver functionality than NIS or LDAP can provide, leaving just site-wide identification information for NIS master and slave systems to serve. However, some functions — such as the distribution of netmask information to clients, as well as the maintenance of e-mail aliases — may still be performed by NIS or LDAP.
http://www.disa.nu/pub/doc/sles10/usr/share/doc/manual/sles-admin_en/cha.ldap.html
Son but est de distribuer les informations contenues dans des fichiers de configuration contenant par exemple les noms d'hôte (/etc/hosts), les comptes utilisateurs (/etc/passwd), etc. sur un réseau.
Un serveur NIS stocke et distribue donc les informations administratives du réseau, qui se comporte ainsi comme un ensemble cohérent de comptes utilisateurs, groupes, machines, etc.
An NIS/YP system maintains and distributes a central directory of user and group information, hostnames, e-mail aliases and other text-based tables of information in a computer network. For example, in a common UNIX environment, the list of users for identification is placed in /etc/passwd, and secret authentication hashes/etc/shadow. NIS adds another “global” user list which is used for identifying users on any client of the NIS domain. in
In many environments, other directory services — arguably more modern and secure than NIS, such as LDAP — have come to replace it. For example,
slapd (the standalone LDAP daemon) generally runs as a non-root user, and SASL-based encryption of LDAP traffic is natively supported.On large LANs, DNS servers may provide better nameserver functionality than NIS or LDAP can provide, leaving just site-wide identification information for NIS master and slave systems to serve. However, some functions — such as the distribution of netmask information to clients, as well as the maintenance of e-mail aliases — may still be performed by NIS or LDAP.
http://www.disa.nu/pub/doc/sles10/usr/share/doc/manual/sles-admin_en/cha.ldap.html
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