The Network File System.
show mount information for an NFS server
showmount -a or --all List both the client hostname and mounted directory in host:dir format. -d or --directories List only the directories mounted by some client. -e or --exports Show the NFS server’s export list. -h or --help Provide a short help summary. -v or --version Report the current version number of the program. --no-headers Suppress the descriptive headings from the output.
exportfs - maintain list of NFS exported file systems
# /etc/exports -> reexport all directories exportfs -rv
OPTIONS -a Export or unexport all directories. -o options,... Specify a list of export options in the same manner as in exports(5). -i Ignore the /etc/exports file, so that only default options and options given on the command line are used. -r Reexport all directories. It synchronizes /var/lib/nfs/xtab with /etc/exports. It removes entries in /var/lib/nfs/xtab which are deleted from /etc/exports, and remove any entries from the kernel export table which are no longer valid. -u Unexport one or more directories. -f In ’new’ mode, flush everything out of the kernels export table. Any clients that are active will get new entries added by mountd when they make their next request. -v Be verbose. When exporting or unexporting, show what’s going on. When displaying the current export list, also display the list of export options.