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