NFSIDMAP(8) (NAME) nfsidmap - UID GID NFSv4 (SYNOPSIS) nfsidmap [-v] [-t timeout] key desc nfsidmap [-v] [-c] nfsidmap [-v] [-u|-g|-r user] nfsidmap -d nfsidmap -l nfsidmap -h (DESCRIPTION) nfsidmap NFSv4 UID GID . NFSv4 UID GID user@domain . UID << >> (ID mapping) . user . /etc/idmapd.conf . domain DNS . (multi-homed) DNS Kerberos /etc/idmapd.conf . /etc/idmapd.conf DNS _nfsv4idmapdomain . . DNS . /usr/sbin/nfsidmap . request-key (upcall) . /usr/sbin/nfsidmap sbin/request-key/ . ( ) . nfsidmap . <> NFSv4 . -d -l . (keyring) . (OPTIONS) -c (keyring). -d NFSv4 (stdout). -g user gid . -h . -l stdout. (superuser) . -r user uid gid . -t timeout . ( ) . -u user uid . -v syslog ( ). (CONFIGURING) /etc/request-key.conf /sbin/request-key . keyctl negate : create id_resolver * * /usr/sbin/nfsidmap -t 600 %k %d id_resolver /usr/sbin/nfsidmap . -t 600 . /usr/sbin/nfsidmap . idmapper : uid: Find the UID for the given user gid: Find the GID for the given group user: Find the user name for the given UID group: Find the group name for the given GID . uid request-key.conf : create id_resolver uid:* * /some/other/program %k %d create id_resolver * * /usr/sbin/nfsidmap %k %d . request-key . some/other/program/ uid usr/sbin/nfsidmap/ gid user group . (FILES) /etc/idmapd.conf (ID mapping) /etc/request-key.conf (Request key) (SEE ALSO) idmapd.conf(5), request-key(8) (AUTHOR) Bryan Schumaker, nfs-utils NFSIDMAP(8)