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Questions tagged [dsm]

DSM is the operating system used by Synology

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on DSM7 script with ssh runs well manually, fails when launched as same user in crontab

on DSM7 script with ssh runs well manually, fails when launched as same user in crontab: Host key verification failed. rsync error: unexplained error (code 255) at io.c(254) [sender=3.1.2]
brunobhr's user avatar
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0 answers
148 views

Synology SHR 2 disk: replace HDD with SSD

I have a DS218+ with 2x3TB WD Black, all allocated to single storage pool (SHR). The disks are hot-swappable. The volume is almost full and I'd like to replace them with 2x4TB Crucial SSD. Only DSM 7....
andig's user avatar
  • 179
-1 votes
1 answer
291 views

I can't start any VMs on Synology Nas 920+ Virtualization Manager

I was having trouble starting any VM on the Virtualization manager on my Synology 920+ with DSM version DSM 7.2-64570 Update 1. Nothing worked. I was trying all the Ubuntu's mainly server, but desktop ...
BillRoth's user avatar
0 votes
1 answer
625 views

xpenoboot dsm 5.2-5644 - updated to dsm 7.0 would like to recover data

I managed to click on update system as dsm recommended (i only seen the server online and didn't know its not factory synology nas, and never worked with synology NAS before, my bad, anyway) it is a ...
Attila Szabados's user avatar
5 votes
3 answers
3k views

User directory does not exist when logging in via ssh to a Synology NAS

On a Synology NAS with DSM 7.0 I have created through the Graphical UI a dedicated admin user (as recommended in Synology's setup procedure), then I have enabled ssh login and now I can ssh into the ...
halloleo's user avatar
  • 163
1 vote
0 answers
1k views

ssh-copy-id does not update authorized_keys file

I can't configure ssh key on my Synology NAS. File ~/.ssh/authorized_keys is not created or not updated. On remote machine (NAS): $ cd $ chmod 700 . $ chmod 700 .ssh $ touch .ssh/authorized_keys $ ...
jootl's user avatar
  • 183
1 vote
1 answer
3k views

Docker with Traefik reverse proxy under Synology DSM 7 // free port 80 and 443

To run docker with the reverse proxy Traefik v2 on a Synology NAS, I need to be able to use port 80 and 443 on the host system. The Operation System of the NAS DSM uses its own reverse proxy, nginx, ...
Daniel_WW's user avatar
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0 answers
1k views

Shutdown NAS Synology after backup

We have 2 NAS Synology Disk Station 1618+ with DS1618+ OS' version. The first one (NAS1) receives backups from multiple servers and the second one (NAS2) is supposed to be the backup of that NAS. So, ...
Joel's user avatar
  • 61
11 votes
8 answers
8k views

Can you run Active Directory on a non-Windows server?

I administer a network of 10 workstations for a small non-profit (also, I'm very inexperienced, forgive me if it's a silly question), and everything has been managed so far as if they were home PCs ...
Ben Opp's user avatar
  • 257
4 votes
1 answer
13k views

How to check OS version of Synology NAS Disk Station Manager (DSM)?

How do I check what OS is installed on my Synology NAS? uname -a informed me that my NAS is: aarch64 GNU/Linux synology_rtd1296_rs819 ..but how do I know what version of the Synology OS it's running? ...
Michael Altfield's user avatar
1 vote
1 answer
3k views

How to create Encrypted Home Directories with Synology NAS

I have the need to encrypt folders in users home directories, it doesn't appear to be supported out of the box for some unknown reason. So how do I go about creating encrypted home directories with ...
rwcommand's user avatar
  • 163
1 vote
0 answers
1k views

How can I authenticate with both Synology OpenVPN + Radius Plugin?

I would like to have a double authentication: Certificate based authentication in OpenVPN as well as User/Password authentication via the Radius-Plugin provided on the server (Synology NAS DS2016play ...
DaCapitalist's user avatar
2 votes
1 answer
3k views

SFTP error on Synology DSM

I created a user (no root), I can connect with him over ssh, I can send files over scp but when I'm using sftp I get this error: subsystem request failed on channel 0 I checked /etc/ssh/sshd_config: ...
jootl's user avatar
  • 183
0 votes
1 answer
6k views

Why am I getting a 'The operation failed. Please log in to DSM again and retry.' when changing HyperBackup statistics alert thresholds?

I have a DS918+ with several backup tasks configured in HyperBackup. One of them has a threshold set for excessive storage usage, which I need to adjust. However, whenever I try to adjust it, I get ...
robsiemb's user avatar
  • 101
2 votes
0 answers
5k views

How to re-enable DSM web interface

I managed to disable my DSM web interface and now I struggle to re-enable it. I am on DS716+. This is what I did: From still working DSM console I disabled php 7.0 (I wanted to install version 7.2). ...
callmebob's user avatar
  • 143
0 votes
1 answer
3k views

Degraded volume on Synology NAS

Today my Synology NAS's OS (DSM) told me that I have a degraded volume. The advice on their site is to replace the failed drive. I've gone ahead and bought the same drive model and capacity, and it ...
shennan's user avatar
  • 101
1 vote
0 answers
273 views

Synology DSM - DS Get from remote access

I can't connect from remote access (4G) to DS Get (or DS File) to my Synology with a private domain. For information, I can connect to the main dashboard with a navigator and access to Download ...
jootl's user avatar
  • 183
1 vote
1 answer
3k views

How to use .htaccess in a non open-basedir path of Synology/DSM 6.1

I am trying to use the trick described by Rob Van Aarle here to execute php pages in "paths not allowed" by default for Synology's web server... The purpose is to create packages which do not depend ...
Valery Letroye's user avatar
4 votes
1 answer
13k views

Accessing synology DSM behind nginx reverse proxy

I'm trying to access my synology nas web ui behind a nginx reverse proxy running on my raspberry. Nginx reverse proxy is working for other stuff, like my ghost blog. I copy/pasted the settings to ...
Rémy's user avatar
  • 286
0 votes
1 answer
8k views

Synology blue led of death (led blinking)

My Synology (10 disks) suddenly doesn't reboot. Connecting it with the serial port, I could manage to boot on "Synology 1" and "Synology 2" Synology 1, is a kind of "recovery partition" allowing ...
Hadrien Huvelle's user avatar
4 votes
2 answers
28k views

High CPU Load on Synology by smbd

I have a Synology DS213j which I access through a VPN via the build-in VPN Server (I use OpenVPN) using Windows Explorer. Copying files to my local hard drive is very slow in the range of only ~170 ...
sinned's user avatar
  • 483
2 votes
0 answers
542 views

HAProxy: replacing subdomains with paths

My previous question was too complicated and unclear. Hopefully this is more straight to the point... Currently I'm using subdomains to access application UIs externally. Some allow access via paths: ...
jztilly's user avatar
  • 21
0 votes
2 answers
2k views

FPM binary for PHP cli [closed]

The newest Synology NAS DSM 6 version has a strange PHP set up. The command line binary is PHP version 5.6.11 with almost no enabled modules and the tokenizer part is not compiled into it. But when ...
Laoneo's user avatar
  • 274
2 votes
3 answers
11k views

Impossible to use the Package Center after upgrading DSM

I have just updated the DSM of a Synology Nas. DSM 5.2-5644 Update 2. It seems now I can no longer use the Package center. But, as I have not used the Package Center for a long time, I'm not 100% ...
Stephane Rolland's user avatar
9 votes
2 answers
9k views

What does enable DoS protection in Synology DSM 5 do?

If I open Control Panel > Security > Protection, check Enable DoS Protection and click Apply, what kind of traffic gets blocked? The text reads "Denial-of-Service (DoS) protection helps to prevent ...
tomsv's user avatar
  • 283