Linux - Nscd name service cache daemon , Nscd-name service cache daemon

Nscd name service cache daemon

nscd-name service cache daemon

Nscd is a daemon that provides a cache for the most common name service requests. The default configuration file, /etc/nscd.conf, determines the behaviour of the cache daemon.

Nscd provides cacheing for the passwd,group,hosts databases through standard libc interfaces, such as getpwnam,getpwuid,getgrnam,getgrgid,gethostbyname and others. Each cache has a separate TTL (time-to-live) for its data; modifying the local database (/etc/passwd, and so forth) causes the cache to become invalidated within 15 seconds. The shadow file is specifically not cached. getpsnam calls remaining uncached as a result.

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