network-filesystems: Add section.

src/SUMMARY.md

@@ -36,6 +36,7 @@
       - [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 +1,71 @@
+# 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.
+
+To mount an NFS share:
+
+```
+# mount -t <mount_type> <host>:/path/to/sourcedir /path/to/destdir
+```
+
+`<mount_type>` should be `nfs4` if the server supports it, or `nfs` otherwise.
+`<host>` can be either the hostname or IP address of the server.
+
+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 `192.168.1.99` to an existing
+`/mnt/volume` directory on your local system:
+
+```
+# mount -t nfs 192.168.1.99:/volume /mnt/volume
+```
+
+To have the directory mounted when the system boots, 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 information about the
+available mounting 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 your NFS server. To check if the shares are 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.