Questions tagged [synology]

Synology is a company best known for its Network Attached Storage (NAS) product line.

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How to mount and recover data after succesfully building the raid again?

We have a synology nas and one of the 2 disks crashed although smart was passed and the data was intact. Note that although the disks are not in a raid, years ago we chose SHR and apparently synology ...
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14 views

Run Synology NAS memory test manually without Synology Assistant

Is there a way to trigger a Synology NAS (DS218+) memory test from the shell or in DSM itself? The normal method is to discover the NAS using Synology Assistant and initiate a memory test from there. ...
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Crazy remote VPN server slowness until 9AM EDT then fine

(I posted this on stack overflow and was told that's the wrong forum for this. If ServerFault is also the wrong forum, please suggest another sister stack exchange.) I'm out of ideas. A Synology file ...
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41 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 ...
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35 views

I can only connect to OpenVPN server with IPv6, not IPv4

I've setup an OpenVPN server on my Synology Router and have trouble getting both an IPv4 and and IPv6 connection working correctly. Initially I was having huge headaches figuring this out but I've ...
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Windows Name resolution over VPN stops working after one day

Overview When I'm working from home, I have some serious problems with the connection the office over the VPN-Tunnel. It seems to be caused by a windows name resolution problem with the AD-Server ...
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55 views

Slow transfer using NFS on one server (Proxmox reason ?)

It was hard to choose topic for my question so I describe my problem. I have two servers with Proxmox (SERVER1 (proxmox version: 5.4-13) and SERVER2 (proxmox version: 5.2-12)) and two NFS servers (...
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Can I setup Synology DSM to only one disk and then pull in data to setup RAID 1 afterwards?

Given situation: Synlogy with 2x1TB (disks not further needed) MyCloud with 2x3TB (Raid level 1) Goal: I want want to run the 3TB disks in the synology. When I switched disks Synology wants to ...
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125 views

Synology QuickConnect Relay: Not Secure?

I was reading the QuickConnect whitepaper and was overall pretty impressed. But on page 10 it explains how the Relay service works and it’s implied (but not explicitly stated) that packets are ...
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297 views

Access local network via Synology OpenVPN

I'm trying to access my LAN via a Synology NAS with the OpenVPN package. My router IP is 192.168.1.1 and my Synology NAS IP is 192.168.1.100. They are both connected to a managed Netgear switch ...
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63 views

Why does BIND perform a double query before answering NXDOMAIN for a RPZ (response-policy zone)?

The goal is to have a local DNS server with the following specifics: split DNS setup that resolves a FQDN (e.g. localdomain.com) to a local IP instead of the external IP use a RPZ (response policy ...
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183 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: ...
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Synology NAS slow because of denied accesses for system user - rate limiting?

My customer is copying files from a Windows 10 machine to a Synology NAS (don't know which one). When doing so, an anti-malware program running on the Windows 10 machine tries to open the newly-copied ...
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3answers
845 views

Connecting a NAS directly to a 4 port switch directly to two computers, offline?

I'm looking to purchase a portable NAS, say the Synology DS1019+ for example, to use as a shared storage drive between two workstations beside each other. There is no wired network access anywhere ...
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1answer
906 views

Seagate EXOS noise level [closed]

I just had my second HD crash in my DS213j with a WD Red. This time I am considering something more reliable such as the Seagate EXOS 6TB. I am in doubt about the noise from these EXOS drives. My NAS ...
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35 views

Active Directory Certificate Services via Vault and Samba to issue HTTPS Certs?

My end-goal is to get centralized user and HTTPS cert management for Kubernetes and Synology NAS. I could use Let's Encrypt, and that would solve Kubernetes (while also making some internal hostnames ...
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339 views

Unable to SSH to Synology NAS

Here is the sequence of events: I added my RSA key to .ssh/[my admin user], updated permission, and disabled SSH authentication by password months ago. I formatted my desktop and I forgot to re-...
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48 views

Modify an installed docker container

I am using a Synology KMU NAS. On that NAS I have installed the GitLab Docker container that seems to have a bug. That bug causes the Software to refuse to send administrative e-mails without ...
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704 views

Will I be able to expand Synology later without losing data with regular RAID

I just got Synology 918+ and bought 2x10 TB Hard drives. Before I set up, I just want to avoid getting into trouble in the future. I don't want to use SHR (Synology hybrid raid) because of several ...
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182 views

Windows server vs Synology

I do network support for SMEs and a client decided to move away from cloud storage/backup and simple file sharing between Windows terminals and install a server. Requirements are data encryption, MS ...
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811 views

The plain HTTP request was sent to HTTPS port (NextCloud docker + nginx-proxy in Synology NAS)

I have a Synology NAS DS1813+ and I wish to install Nextcloud into it and I managed to do it by using Docker. Note that it will be available just in local network. Next, I wish to secure it by using ...
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2k 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 ...
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ISCSI MPIO Extra devices, and is there meant to be an mpath0-part2?

I am trying to learn more about ISCSI and Multipath (MPIO) setup on a proxmox system. I thought I had everything working, but have that terrible spidey sense that something is incorrectly configured, ...
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168 views

Configuring sudo on CentOS with LDAP run by Synology Diskstation

I am trying to set up a CentOS 8 workstation to authenticate against a LDAP server run by a Synology DiskStation. I have been able to successfully configure SSSD to authenticate users against the ...
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131 views

Shutdown Multiple Servers From One APC USB Port - Power loss event

I've got one Ubuntu box and a Synology NAS. Both are connected to the APC UPS, but only one USB, which is connected to the Ubuntu box. How, specifically, can I get both machines to shut down from a ...
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111 views

Strange routing behavior, Synology combined with OpenVPN

Essentially the setup I've got is WAN <-> OpenVPN running on OpenWRT running on WRT3200ACM <-> LAN -> Gigabit Switch -> RPI and synology The openVPN tun is working fine and dandy. I get an IP ...
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325 views

Linux: rsync to mirror SMB mount to local disk is very slow

I try to mirror a share mounted via SMB to a local dir. The share is hosted on a Windows 2016 server on which I have no access nor can I install any tools. All I have therefore is an SMB share. The ...
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1answer
461 views

How to fix slow iSCSI speed (in comparison to SMB)?

I have a NAS which provides SMB and iSCSI targets, and a server which is directly connected via a 10 GbE link (no switch in between). I experience slow speeds with the iSCSI target in contrast to "...
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61 views

Enlarge attachment max in synology redmine

I have a Redmine installation on a Synology NAS. It is the standard Synology Docker package, based on sameersbn/redmine:3.3.6-1. Everything works as expected, but the size of allowed attachments. I ...
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103 views

Synology & Sendmail - I can not sign my mails with DKIM

I post here as a last resort, I did not find the solution to my problem. I installed optware on my Synology DS418 in order to have sendmail. I send mail at the command line using the /opt/sbin/...
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111 views

lsyncd on an x86_64 Synology NAS

lsyncd isn't available as a package on a Synology NAS. ~# opkg install lsyncd Unknown package 'lsyncd'. Collected errors: * opkg_install_cmd: Cannot install package lsyncd. So I'm trying to compile ...
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1k views

SFTP login accepted, SSH login denied by Synology NAS

On a Synology NAS, I want to enable SFTP and SSH for some non-admin users. (SSH mainly for pushing to git repos on the NAS.) What works I was able to make SFTP work with different clients on Mac ...
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1k 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). ...
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28 views

GitLab Container Not Accepting WAN Connection

Been dealing with this issue for a couple hours now and hit a bit of a standstill as far as my experience and google abilities. Got the most recent version of gitlab installed, after having a similar ...
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1answer
286 views

Router (Synology) translates external IP address to internal

My previous CISCO router (from my ISP) has been changed to Bridged mode, because I wanted to use mine (Synology). Afterwards the internet connection and the subnet worked fine, but my (DDNS) FQDN (...
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1answer
366 views

Synology NFS shares timing out after power outage

Synology DS1513+ with DSM 6.2.2-24922 This is a Synology NFS issue. Everything else on and off the NAS works. Maybe some NFS gurus know what's going on. Edit: Is there a way to reinstall or reset ...
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712 views

Borg backup remotely gives error

Trying to use borg to backup Machine 1 to a remote Machine 2(which is synology), gives the error Remote: sh: borg: command not found Connection closed by remote host. Is borg working on the server? ...
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1answer
404 views

Synology docker, how to “not set” exposed ports when using dockers in a network

When I add a docker to a bridge network, normally (when doing it on my local pc) I can leave exposed ports "open" without connecting them to an external port. This has as advantage that the port ...
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1answer
1k 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 ...
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1answer
423 views

Btrfs: Remove a large file takes long

I'm running a synology nas DS1817+ with DSM 6.2.2-24922 with a RAID5 volume formatted with BTRFS. Deleting a large file either with DSM FileStation or directly in an ssh session with "rm filename" ...
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76 views

Synology NAS DS216+II 8TB SHR with data protection to non data protection without losing data

I have an 8TB Synology NAS in SHR with data protection, which is about to be full. As data protection takes up 4TB, I would like to make use of it as a normal drive. As I have my data backed up ...
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1answer
2k views

Synology DSM (Unix) - Cannot SSH with another user

On my Synology (DSM 6.2.2-24922), I have 3 users: admin (disabled ssh and login) user1 (my new admin user, recommanded by Synology) user2 (not admin) I can connect throw ssh with user1 but not with ...
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1answer
83 views

Hook second router to internet wirelessly?

I have a router hooked up to a modem, and I have another router. What I want to do, is have the router broadcast a completely different network than my other router, but still have my second router ...
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182 views

run s3cmd on Synology NAS

I'm trying to use s3cmd on a Synology NAS with DSM 6.0, and I'm getting this error. I've installed the python-magic libs but still. [root@OFFICE_01 arc]# s3cmd --version !!!!!!!!!!!!!!!!!!!!!!!!!!!!!...
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747 views

SMART - Understanding Offline Data Collection

I have two Kingston A400 120GB SSD as cache in a Synology NAS, which don't seem to support automatic offline data collection. # smartctl -d sat -c /dev/sdc | grep -i "Auto Offline data collection" ...
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261 views

What is a shared folder quota?

I had this issue on my RackStation NAS the other day; I couldn't write anything to a volume I had created (let's call it newton2). I looked at the RackStation console and unchecked this "Enable ...
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601 views

Clients / Groups / Users not shown in group policy management console (GPMC)

I have installed the ActiveDirectory app on my Synology DS918+. Already successfully added users and insert two PCs into the domain. If I open the GPMC on my Windows 10 (v1809) machine, I'm missing ...
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2k views

Synology and vmware with 4 way MPIO slow iSCSI speeds

I am trying to achieve high iSCSI speeds between my ESX box, and the synology NAS. I am hoping to achieve a top speed of 300-400 Mb/s. But so far all i've reached is 150 - 170 MB/s. The main test ...
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1answer
95 views

NAS storage comparison for Synology vs Overland [closed]

We are looking for NAS solution that will be used as secondary storage to hold large amount of data. We have received following proposals that are under our pre allocated budget. SnapServer XSR120 / ...
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1k views

File transfer to SMB (Ubuntu 18.04 => Synology 718+) very slow

I have Synology DS718+, which I am testing with one user (myself) currently. My transfer rates from my laptop to Synology of around 2 MB/s. However copying FROM Synology back to laptop is around 30 ...

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