new post (synology nas: nfs shares)

content/posts/2023-04-10-synology-nas-nfs-shares/index.md

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+# vim: ft=markdown
+title = 'Synology NAS: NFS shares'
+summary = '''I've done this setup now several times (because I break so
+  many things all the time). It is time to write it down...'''
+date = '2023-04-10T21:44:18+0200'
+# lastmod = ''
+categories = [ 'computerstuff' ]
+tags = [ 'linux', 'server', 'nfs', 'networking' ]
+
+# showDate = false
+# showReadingTime = false
+# showWordCount = false
+# showPagination = false
+
+# feed_exclude = true
+# site_exclude = true
+
++++
+
+## Create or change the NFS share
+
+First of all edit your shared folder.
+<kbd>Control Panel</kbd> → <kbd>Shared Folder</kbd> → <kbd>Edit</kbd> →
+<kbd>NFS Permissions</kbd> → <kbd>Create (or Edit)</kbd>.
+
+![path to the settings as mentioned above](01-shared-folders-nas.png)
+
+| Setting         | Value                      |
+| :---            | :---                       |
+| Hostname or IP  | 192.168.10.100 (actual IP) |
+| Privilege       | Read/Write                 |
+| Squash          | Map all users to admin     |
+| Security        | sys                        |
+
+## Change the user and group ids in `/etc/exports`
+
+Now login to the <abbr title="Network Attached Storage">NAS</abbr> with <abbr
+title="Secure Shell">SSH</abbr> and open the file `/etc/exports` as the user
+root.
+
+The file should look similar to this one:
+
+```
+/volume1/video	192.168.10.100(rw,async,no_wdelay,crossmnt,insecure,all_squash,insecure_locks,sec=sys,anonuid=1026,anongid=100)
+```
+
+I have the following users on my NAS:
+
+```
+uid=1024(admin) gid=100(users) groups=100(users),101(administrators)
+uid=1026(dominic) gid=100(users) groups=100(users),101(administrators),1000(nfs-dominic)
+uid=1000(nfs-dominic) gid=1000(nfs-dominic) groups=1000(nfs-dominic)
+```
+
+Change the parts `anonuid=1026,anongid=100` to your needs.
+
+I do have a personal folder that I change to `anonuid=1000,anongid=1000`
+but I leave others (like video) that use `anonuid=1026,anongid=100`
+(because I want the internal user on the NAS to use them too).
+
+## Restart NFS Service on your NAS
+
+Whenever you finished your changes to that file, save it and go back to
+the control panel on the web interface.
+
+<kbd>Control Panel</kbd> → <kbd>File Services</kbd> → <kbd>NFS</kbd>.
+
+1. Disable NFS service, click <kbd>Apply</kbd>.
+2. Enable NFS service, click <kbd>Apply</kbd>.
+
+## Adopt your client
+
+Edit your `fstab` file. Mine looks like this:
+
+```
+nas.lan:/volume1/video  /home/dominic/_nas/video  nfs  noauto,users,nodev,async,soft,_netdev,x-systemd.device-timeout=1,x-systemd-idle-timeout=1min,x-systemd.mount-timeout=10,timeo=10,retry=3  0  0
+```
+