Add page for NFS

src/SUMMARY.md

@@ -35,6 +35,7 @@
       - [iwd](./config/network/iwd.md)
       - [NetworkManager](./config/network/networkmanager.md)
       - [ConnMan](./config/network/connman.md)
+   - [Network Filesystems](./config/network-filesystems.md)
    - [Session and Seat Management](./config/session-management.md)
    - [Graphical Session](./config/graphical-session/index.md)
       - [Graphics Drivers](./config/graphical-session/graphics-drivers/index.md)

src/config/network-filesystems.md

@@ -0,0 +1,72 @@
+# Network Filesystems
+
+## NFS
+
+### Mounting an NFS Share
+
+To mount an NFS share, start by installing the `nfs-utils` and `sv-netmount`
+packages.
+
+Before mounting an NFS share, [enable](./services/index.md#enabling-services)
+the `statd`, `procbind`, and `sv-netmount` services.
+
+If the server supports `nfs4`, the `statd` service isn't necessary, and `nfs4`
+should be used in the place of `nfs` as the mount type below.
+
+To mount the NFS share, use the command below, where `host` is the hostname or
+IP address of the server:
+
+```
+# mount -t nfs <host>:/path/to/sourcedir /path/to/destdir
+```
+
+Mounting options can be found in
+[mount.nfs(8)](https://man.voidlinux.org/mount.nfs.8), while unmounting options can
+be found in [umount.nfs(8)](https://man.voidlinux.org/umount.nfs.8).
+
+For example, to connect `/volume` on a server at IP address
+`192.168.1.99` to a directory `/mnt/volume` on your local system:
+
+```
+# mkdir /mnt/volume
+# mount -t nfs 192.168.1.99:/volume /mnt/volume
+```
+
+To have the directory mounted again when the system reboots, add an entry to
+[fstab(5)](https://man.voidlinux.org/fstab.5):
+
+```
+192.168.1.99:/volume /mnt/volume nfs rw,hard,intr 0 0
+```
+
+Refer to [nfs(5)](https://man.voidlinux.org/nfs.5) for more information about
+the available options.
+
+### Setting up a server (NFSv4, Kerberos disabled)
+
+To run an nfs server, start by installing the `nfs-utils` package.
+
+Edit `/etc/exports` to add a shared volume:
+
+```
+/storage/foo    *.local(rw,no_subtree_check,no_root_squash)
+```
+
+This line exports the `/storage/foo` directory to any host in the local domain
+with read/write access. For information about the `no_subtree_check` and
+`no_root_squash` options, and available options more generally, refer to
+[exports(5)](https://man.voidlinux.org/exports.5).
+
+Finally, [enable](./services/index.md#enabling-services) the `rpcbind`, `statd`,
+and `nfs-server` services.
+
+This will start up your nfs server, and the shares should now be working.  Use
+the [`showmount(8)`](https://man.voidlinux.org/showmount.8) utility to check
+the NFS server status:
+
+```
+# showmount -e localhost
+```
+
+You can use [nfs.conf(5)](https://man.voidlinux.org/nfs.conf.5) to configure
+your server.