Sync two nas over internet.
Dec 14, 2018 · Hi, I have a DS218 with 4 users.
Sync two nas over internet You can also configure USB One Touch Copy for QNAP NAS devices that have a USB One Touch Copy button. to/37oX47P NAS Solutions from - Are you interested in all things data storage. Aug 29, 2016 · I am trying to sync two ReadyNAS' over the internet using rsync backup jobs. x. But also works great over VPN if you can do a site to site set up. I am interested in Qnap mainly because of RTRR which will allow for two way sync and backup to onedrive. I use Drave Share Sync to keep a backup of another synology over vpn. And raid is not backup solution, it is just to improve availability. NAS2 in location 2. Hey everyone, I'm thrilled to announce the launch of r/UGreenNASync, your go-to hub for all things related to UGreens' innovative new NASync devices! Whether you're a tech enthusiast, a seasoned user, or just curious about the latest in technology, this subreddit is the perfect place to connect, share, and learn. It may be more reliable with small, infrequently modified data sets but certainly not with terabytes of data. Jun 9, 2024 · Network attached storage specialist SpaceRex has created a fantastic tutorial providing 5 tips to improve the speed of your NAS over local connections and 5 for remote connections. Enable Rsync Server Rsync is a common utility for efficiently transferring and synchronising files across computer systems, by checking the time stamp and size of files. Shared Folder Sync The Shared Folder Sync service allows users to sync shared folders from one Synology NAS device (the source) to other Synology NAS devices (the destination) within the LAN or over the Internet. But for reason of viruses it is better to have online backup which You mean than to sync 2 NAS I must use a VPN for safety ? There is no build-in solutions with QNAP apps? (sorry to rephrase I'm a noob in NAS -my fist ones- AND I am not a native English speaker ¯\_ (ツ)_/¯). I can do this by using Windows Jul 27, 2020 · I have two Seagate BlackArmor 400 NAS units and I want to transfer a lot of files from one to the other. Synology develops the most intuitive and user-friendly NAS experience while offering tons of rich It comes with a utility that lets you connect one NAS to the other NAS's "Drive" setup and then automatically keeps any shared folders you want in sync. Are there any best practives on how to achieve this out of the box? Feb 19, 2021 · 1. Nov 3, 2022 · On your local Synology NAS, open Synology Drive ShareSync, enter the IP address (or the QuickConnect ID), username, and password of the remote Synology NAS. Aug 21, 2024 · This may seem like a very basic question, but is there any way to simply copy data between two NASs on the same network, as you would do between two drives in a Windows desktop. With the scheduled backup and rsync option, you can make backup with a distant NAS. On the other hand, if one device is on "standby" and just collecting and You mean than to sync 2 NAS I must use a VPN for safety ? There is no build-in solutions with QNAP apps? (sorry to rephrase I'm a noob in NAS -my fist ones- AND I am not a native English speaker ¯\_ (ツ)_/¯). It synchronizes files between two or more computers in real time, safely protected from prying eyes. Jun 24, 2020 · Synchronization over all nas's I implemented as copying from nas1 to nas2 on Monday and nas2 to nas 3 on Tuesday and nas3 to nas 1 on Wednesday. Basically is Google Jul 1, 2025 · Hello everyone, I have very limited knowledge about networking, so I am turning for your help to not screw up big time. " This is not what I have. What's the best way to keeping the two folders in sync? I guess using shared folder sync but which should be the host given I already have the data on the old NAS? Accessing the NAS over the Internet To connect to a remote NAS (over the Internet), the administrator must first configure the device name for the NAS in "myQNAPcloud". Support for packages/functions may vary for different device capabilities and DSM versions. What it's giving me is access to everything my router is connected to - If I send it a google search, it'll use the internet to connect to google - but I can also send it a request to connect to my NAS connected to it that the internet can't see. Shared Folder Sync: One way sync… This is the complete guide on how to remotely access your Synology NAS from any computer in the world over the internet. Both have support on the 920+, zerotier via docker and tailscale via package center. This way I don’t need any PC at my home. For two way file transfers. Jul 1, 2025 · Hello everyone, I have very limited knowledge about networking, so I am turning for your help to not screw up big time. Port forwarding on your router and firewall issues need to be addressed. This article explains these possible causes and provides corresponding solutions. It is my understanding that netgear and buffalo only provide Rsync features which is not enough, Synology is the other one I Feb 9, 2018 · The first step in setting up replication between TeraStations is to set up a folder on the target TeraStation. You have to open port on the way in the distant router for accessibility (default port for rsync is 873). Before you begin, make sure you have completed the following: Synology Drive Server (available from Package Center) has been Jun 7, 2023 · This post describes what you can do with Synology Drive ShareSync and how to use it to sync files between Synology NAS. One of the device will be the Terramaster F2-220. Cloud Station also allows your PC to be synced with more than one Synology NAS, and you can create multiple sync tasks to protect multiple folders on your PC with one or more NAS servers. e. This allows you to easily view your files from within MacOS finder or Apr 21, 2025 · Learn how to set up the UGREEN NASync DXP2800 from unboxing to creating storage pools and enabling remote access. x to another NAS running DSM 6 or above, in the destination’s DSM, go to Control Panel > File Services > rsync to enable rsync services and add an rsync account beforehand. This would provide backup and allow me to gradually migrate my PCs to using the 918+ . 2. The first time a sync task runs, Shared Folder Sync will perform a full sync of the selected shared folders. The content from server 1 needs to be synced / back uped to server 2 via internet. I have a NAS in two different cities and sync them using Synology Drive over a dedicated VPN. If possible I would like to Aug 3, 2025 · I'm still interested in the possibility of running two separate NAS - one as a media server, the other for data - but, what what I'd really need is instructions on how to go about properly setting it up. Ideal for first-time NAS users. Apr 28, 2016 · I'm looking for a way to have automatic sincronisation if possible between two synologiy NAS. It can sync files between two NAS for free, even with schedule. Location A has surveillance cameras that are saving footage via FTP on the NAS there. It is automatically installed along with the Synology Drive Server package in DSM. You mean than to sync 2 NAS I must use a VPN for safety ? There is no build-in solutions with QNAP apps? (sorry to rephrase I'm a noob in NAS -my fist ones- AND I am not a native English speaker ¯\_ (ツ)_/¯). I don't want the "Shared with me" as it's really awful feature. I'm looking for a solution that simply copies or moves files between two DS920s. Note that even if you pair two devices over Wi-Fi, the connection will persist even over the internet. Offline setup limits access to the local network only. I have 2 NAS's in my house, and I am doing shared folder sync between them -- syncing folders like photos, music, video. The clients withing the same LAN as the NAS do not sync. Therefore, when you have several devices with different capabilities or DSM versions, you need to use different methods to sync data. Aug 21, 2025 · QNAP to QNAP backup means to backup files from a QNAP NAS to another. Is it possible for both NAS to synchronize over the internet, ideally in real-time? Currently, they meet once a week, and the backup that one brings is then transferred to the other's NAS and vice versa. You can also take a few hours difference between the copy actions. However it seems very inefficient and at times very slow. In this video we are going to take you through a step by step tutorial on how to synchronize files from one NAS to another NAS. Jul 8, 2010 · WebDAV is an extension of the HTTP protocol that allows users to manage files stored on a remote server. Shared Folder Sync Shared Folder Sync is a one-way syncing solution that allows users to sync shared folders from one Synology NAS device (the source) to other Synology NAS devices (the destination) within the LAN or over the Internet. x or DSM 5. Depending on your internet connection, you may want to consider one person mapping a drive in the NAS over the internet, however my experience tells me that its really slow. What NAS setup for two-way syncing over the internet? [closed] Ask Question Asked 14 years, 11 months ago Modified 11 years, 5 months ago Aug 25, 2021 · This will be a quick (DSM 7) tutorial to show how you can use two remote NAS devices and perform a Hyper Backup over the Internet while maintaining the security of your data both in transit and at the final destination. One at home and one at a remote location - work. more Dec 18, 2023 · Synology Shared Folder Sync supports the one-way syncing of data from one Synology NAS to another. The device could be a desktop system, server, or a mobile phone. However, for better performance and security, it’s recommended to use a VPN or private network when syncing across different sites. If possible I would like to . Nov 8, 2024 · Remote Connectivity: With a UniFi account, you can access the NAS remotely, manage it over the internet, and sync with cloud services. Sync files, view history versions, and get share links Open the sync folders by clicking the folder icon in the system tray. Both Systems should stay in sync at least file wise, ideally also sync their configs/ settings but that might be to much to ask. wundertech. Oct 18, 2022 · For data security and transmission, you may need to do Synology replication between two NAS. Jul 21, 2023 · Hello, for home usage - I want to set up 2 Dell T20 servers in 2 different locations. May 31, 2015 · Is it possible without making firewall changes, static IP's or anything else to use two TS-231's and keep those units in sync over the Internet? Basic concept is for one unit to be in an office which will be used for a backup location where a backup fires off every night around 10PM. I have enabled QuickConnect so can reach my NAS over internet. You could do a one way sync if you want to mirror Nas A to Nas B. I want NAS1 to be the source and just copy data to NAS2 on schedule. e Feb 9, 2018 · The first step in setting up replication between TeraStations is to set up a folder on the target TeraStation. 3) over the internet without involving another computer? I have read about mounting a remote folder via CIFS in filestation. Feb 26, 2020 · The ransomware can attack a vulnerable service on your NAS exposed over the internet (it will not be only from your parents computer). We want sync both NAS for specific folders (visa versa) over the internet. Oct 28, 2024 · To create a NAS mirror backup, you can make use of the File Sync feature of AOMEI Backupper. Feb 10, 2022 · You mean than to sync 2 NAS I must use a VPN for safety ? There is no build-in solutions with QNAP apps? (sorry to rephrase I'm a noob in NAS -my fist ones- AND I am not a native English speaker ¯\_ (ツ)_/¯). What is Synology NAS? NAS (Network Attached Storage) is a storage device that connects to your home or office network and can include one or more hard drives. You can do it with Hybrid Backup Sync but the operation isn’t very simple. Remote Synology NAS: The centralized NAS with which you wish to sync data on the local NAS. I do this now to sync files from a friend's synology to mine. 2-way realtime sync over Internet - is there a more efficient solution than Synology Drive ShareSync? We have two servers that should have the exact same data on them all them time, which we work off directly and they sync via the Internet. Thanks for any help. Is there a way to have the data on Synology 'A' duplicated over the Internet to Synology 'B'? Preferably using a VPN like Nord. Oct 3, 2025 · FreeFileSync is a free open source data backup software to compare and synchronize files and folders on Windows, macOS, and Linux. Qsync Client runs on your computer and syncs files between your NAS and your computer. e Sep 14, 2016 · Hello and thank you for reading. Click Create Folder on the upper left to create a new folder that will be the target for the replication Oct 13, 2023 · Sync Synology NAS to another Synology NAS I have 2 Synology NAS located in two different physical locations. " We'll walk you through the process step-by-step, from choosing the right Synology sync method to configuring settings for a smooth and efficient data synchronization experience. Files can be added locally on e Apr 29, 2016 · But two-way sync over the Internet using just the QNAP NAS devices seems to be a hard solution to solve. If there are any NAS devices which have the built in sync or replication (whatever you call it) feature it will be great. Snapshot Replikation (if you have a + model) or R Sync might be alternatives. Is this possible? How to set it up? We will be using an established VPN connection between May 14, 2025 · Double-click the icon to launch the application. This is the situation: I have two locations with one NAS each. Im in the process of setting it up but confused at this point, I have installed ' Synology Drive Admin Console ' - the instructions state that "A Synology NAS must be selected as the host. Apr 3, 2024 · This post will offer 2 ways to set Synology bidirectional sync to help you sync your NAS and cloud data smoothly. thanks, J Nov 30, 2016 · Hi Guys, We have two different NAS one in the Office and one Home, i want to sync the Office one with the home NAS. Oct 16, 2021 · According to the Knowledge Centre " The Shared Folder Sync service allows users to sync shared folders from one Synology NAS device (the source) to other Synology NAS devices (the destination) within the LAN or over the Internet. You have option to choose external location and use IP (perfect only with a fix IP) or using dynamic domain name. can someone please help ? thank… With QuickConnect, you can easily connect to your Synology NAS over the Internet without the hassle of setting up port forwarding rules or other complicated network settings. Oct 31, 2025 · You can sync NAS devices over the Internet by connecting them through QuickConnect, VPN, or port forwarding. Your data is your data alone and you deserve to choose where it is stored, whether it is shared with some third party, and how it’s transmitted over the internet. Sep 1, 2025 · How to sync 2 Synology NAS over internet? Follow this tutorial to learn two parctical solutions with step-by-step guide. But I also used it to keep some files on my desktop and laptop synchronize and backed up on the nas too. Hyperbackup in itself is a bit sluggish but of Internet speed is the limiting factor this issue will persist with every solution. Any file created or deleted on any of the NAS drives should sync to the other drive. Click Create Folder on the upper left to create a new folder that will be the target for the replication Apr 22, 2013 · Have you tried NFS, i. Jun 4, 2021 · For more information, you can refer to this article. The on-site NAS is a file server and will host around 20/30TB of data. To sync your data among multiple Synology NAS, one Synology NAS has to be chosen as the host server, and the paired Synology NAS will act as client devices. Port forwarding is required for connecting to a remote Synology NAS in a different network. Therefore we want to setup a NAS device in the office that keeps itself in sync with a NAS device at another location. And each has its own backup to external drive. However, when I replace the QuickConnect ID with the local IP of the NAS everything syncs. Files on the NAS can be accessed using a computer, tablet, or smartphone that is connected to your local network or even over the Internet. Alternatively, you could setup Cloud Station (Synologys Dropbox) to sync local files between computer and the NAS. I want to sync between two volumes on the same NAS, not between two different NAS devices. The initial sync will be done locally for speed and the remaining will be done across the internet. Sep 22, 2022 · If you are moving from an old Synology to a new Synology NAS, or just want to keep two NAS in sync at all times, the simple-yet-effective solution I’ve found is to use Shared Folder Sync with rsync. CIFS is not an option. This video goes over setting up Synology Drive ShareSync to keep remote Synology NAS devices in sync with each other. Problem is that I want a single folder for sharing files between users. To secure individual services on a NAS require that you're an advanced user. May 14, 2025 · To sync data between multiple Synology NAS, you can choose from Synology Drive Server, Cloud Station (Synology Drive Server's predecessor), or Shared Folder Sync. The files will be synced over to your Synology NAS and connected clients. I know how to do it on the same LAN but how to do it when the other NAS is only reachable via internet? Apr 13, 2021 · Purpose Cloud Station is a file sharing service that allows you to synchronize files between a host Synology NAS and multiple client Synology NAS, computers, and mobile devices. I have used Drive and ShareSync in the past, but I Oct 31, 2022 · Qsync Central runs on the NAS, and it is a required application for you to sync files between your NAS and your device. He doesn't have the ability to run a VPN from his Firewall/router. This includes photo storage (about 3 TB), video source material, some music, etc. Is Snapshot Replication a better way to do this? We would like to show you a description here but the site won’t allow us. I'm not explaining this well. Synology Drive ShareSync Synology Drive ShareSync is the application to sync data across multiple Synology NAS. May 14, 2025 · Several reasons might prevent files from syncing correctly between Synology Drive and Drive clients. Before you begin, make sure you have completed the following: Synology Drive Server (available from Package Center) has been Jun 6, 2024 · Backup and sync are two different things. Enable RTRR server in Hybrid Backup Sync on Nas B and then create a job with your selected shares/folders, and select schedule, filters, policies from Nas A This works best in LAN. Synology Drive ShareSync Featuring both one-way and two-way sync with file versioning, Synology Drive ShareSync is a synchronization tool that allows shared folders and shared folder privileges to be replicated between a centralized Synology NAS and multiple Synology NAS servers. Use tailscale or zerotier to link them securely over the internet without having to open any ports. Synology Shared Folder Sync supports the one-way syncing of data from one Synology NAS to another. This guide will Jul 23, 2012 · Which has the same internet bandwidth as our office. Log in to Settings for the TeraStation. I initially thought i would just setup Tailscale ans Syncthing on both machines, but i am currently setting them up locally and Syncthing (docker May 14, 2024 · [TOP 4] How to Perform Synology to Synology Sync Ever wished for a way to automatically sync data between your Synology NAS devices? This comprehensive guide reveals the secrets to "how to sync two Synology NAS. Jul 18, 2021 · This article shows you how to back up data from one Synology NAS to another for devices running DSM 4. on NAS1 , mount \\ip\share on NAS 2 and using cp/rsync etc to keep the NFS share in sync with a local disk. All grouped to different datasets and shares. Apr 6, 2023 · You can't create raid over internet, so there is no reason for raid calculator propose 2 device configuration. I purchased a second Synology Nas with the plan to put one at a friends house, give him a storage pool on it, then set them up such that , my storage pool can back up to the nas at his house, and his storage pool will back up at my house. If both NAS units will be up and running at the same time, and you want all members and their services on both devices at the same time, that will be tricky to set up. May 12, 2025 · Forum Jump:Users browsing this thread: 1 Guest (s) Dec 11, 2024 · HBS (Hybrid Backup Sync) is a comprehensive data backup and disaster recovery solution. Oct 13, 2023 · Sync Synology NAS to another Synology NAS I have 2 Synology NAS located in two different physical locations. The changes made in one device (i. There are different rules and tools to configure this. From the "File Sharing" tab, click on the widget to the right of "Folder Setup". Here’s an easier alternative to backup or sync NAS to NAS. Here screenshot, but sorry it's in french Nov 23, 2021 · I believe so. Setup the RTRR server on your NAS, test it by trying to connecting to it from your own NAS (add a remote NAS and type in your local network details) to check that the connection works. Since mine is for backup, I have it set to sync one way. Ideally it would be an exact copy, so that deleting at site A also deletes at B Jul 23, 2012 · Which has the same internet bandwidth as our office. [clarification:] I do most of my work at site A, and I would like the files on the Synology at site A to be available on the Synology at Site B for when I am there. This guide will Nov 25, 2013 · Is there any way to transfer files between two Synology NAS (DS212+ and DS214play, running DSM 4. Apr 23, 2025 · Can somebody give me very basic (for dummies like myself) step by step instructions of how to sync 2 Qnap NAS over the internet. I can access both through a browser GUI and also are the shares I want to transfer between available in my Network Location in Windows 7. HBS supports backing up, restoring, and syncing data between your local QNAP device and a remote device, external device, or cloud storage space. Data on this NAS will be synced with another NAS. I can't find a proper way to make a folder and share it over every user. Join us to: Stay updated on the latest news, updates, and releases from UGreens I've got a folder on my old 115j NAS with all my music on. Aug 24, 2013 · My friend and I have the same NetGear NAS. Does synology nas Shared Folder Sync Shared Folder Sync is a one-way syncing solution that allows users to sync shared folders from one Synology NAS device (the source) to other Synology NAS devices (the destination) within the LAN or over the Internet. This article will guide you through transferring your data using Rsync works the easiest May 9, 2016 · Hi Everybody I have bought a ds216j with 2 ssd's for home / small office use. Best case scenario, it will not go to other user folders. i can’t seem to find a working manual on the net to get this fixed. Feb 7, 2021 · Synology Cloud Station allows you to synchronize your computer with your Synology NAS. Both offices have symmetrical gigabit internet connections. I'd like to 2 way sync it with a folder on my 918+ both are on the same network. One is at my place and the other half way around the country. We would like to show you a description here but the site won’t allow us. I obviously have it set up in raid 1 / mirror. Right So, i have two AS6510T NAS Systems, specced identically. For added security, add a filter on the RTRR server to only allow connections from your friends actual IP address. net/how-to-create-an-openvpn-network-interface-on-a-synology-nas🔔 Subscribe for more tech related tutorials a May 14, 2025 · Several reasons might prevent files from syncing correctly between Synology Drive and Drive clients. Before you begin, make sure you have completed the following: Synology Drive Server (available from Package Center) has been Oct 21, 2019 · Hi, What is the best and quickest way to sync two Synology NAS systems? One device will be on-site and the other will be off-site for backup purposes (alongside Synology C2). Nov 3, 2022 · The following terms are used in this article: Local Synology NAS: The NAS on which you are operating Synology Drive ShareSync. Two ways are shown in the article to help you complete this task. Download and Install Hybrid Backup Sync on your Qnap This will enable communication between the two NAS server devices over your network (and the internet if required, but let’s not get to advanced yet). IPv6 or proxy connections are available. I have read other posts on NAS two way sync on spiceworks and other websites and I am close to making a decision on purchasing a NAS. The problem I am facing (and unable to find a solution) is that I need to initiate backup or sync from the destination NAS as only the source NAS is accessible thru the internet. Dec 14, 2018 · Hi, I have a DS218 with 4 users. Can I link the DS220+ to another Synology NAS locally to essentially expand the overall storage capacity by combining both systems. Mar 2, 2022 · I have two QNAP NAS boxes which I would like to sync one way (or backup). In Windows File Explorer, macOS Finder, Linux File Browser, you can drag files into the sync folder. I would like to one-way sync from one to the other. I first set up rsync and was able to transfer data at about 11MB/s. On one side there 1813+ and on other location is 415+ If there are couple shared folders on 1813+ like: Folder1 Folder2 Folder3 I would like to setup automatic sync between these two so that each time change is made on any of the sides folders gets automatically synced over internet connection. Fastest way to sync two Synology NASs over the Internet Hello, I have two synology NAS units (DS2419+ and DS415play) at separate offices approximately 400 miles away from each other. You can backup your data using: File station (this post) : Drag and drop files between NASes Cloud Station ShareSync: One/Two way sync for files and folders that change frequently in real time (hot storage). Oct 30, 2025 · Learn how to let Synology real-time sync with your computer or other NAS devices, thus every change made to the data is captured and synchronized intelligently. On the home server I have datasets that are SMB shares and I work with those shares on home PC. Jan 23, 2019 · Rsync over SSH is in theory secure but in my opinion the services in a Qnap aren't secure enough out of the box to be exposed to the internet. I can only seem to find how to do it remotely via Synology Drive Share Sync. Before you begin, make sure you have completed the following: Synology Drive Server (available from Package Center) has been Jul 27, 2020 · I have two Seagate BlackArmor 400 NAS units and I want to transfer a lot of files from one to the other. I wanted to back this up offsite and had 2 choices - cloud sync to a dropbox account or alike (which slows down our internet connection something chronic), or purchase a similar setup and have setup in another building nearby over a local area network. Works great. Perhaps you are a Mac users and want to know if this NAS, DAS, Cable or Drive Hi, I want to copy data from one NAS (DS1817) to another one (DS918+) over the Internet (no VPN set up). Our ISP has a line fault, leaving us with no internet access. For more information visit ou Oct 21, 2019 · Hi, What is the best and quickest way to sync two Synology NAS systems? One device will be on-site and the other will be off-site for backup purposes (alongside Synology C2). It is Jul 25, 2020 · Hi, Due to COVID we have several network issues. Written Instructions: https://www. A list of currently-configured folders will be displayed. Since the laptop may be in places without wifi. I run hyperbackup via vpn to an offsite NAS and it does incremental backups very well. This article will guide you through transferring your data using Shared Folder Sync. I have 2 Truenas Scale servers. That means you can move to another Wi-Fi network and continue to sync your files. I want some of the shares (photos, music, documents) to be synced to 2nd server as a backup Nov 3, 2022 · The following terms are used in this article: Local Synology NAS: The NAS on which you are operating Synology Drive ShareSync. Nov 24, 2020 · Syncthing is a free, opensource, peer-to-peer (P2P) file synchronization program that allows you to securely synchronize files between two or more devices within LAN or remote devices over Internet. Shared Folder Sync will perform a full sync of the selected shared folders for the first time. NAS1 in location 1. I've got a folder on my old 115j NAS with all my music on. Amazon NAS Solutions - https://amzn. Shared Folder Sync: One way sync… Apr 21, 2025 · Learn how to set up the UGREEN NASync DXP2800 from unboxing to creating storage pools and enabling remote access. This article will explain how to enable WebDAV on your Synology NAS and access files right from your computer. For example if something is added or deleted on the primary NAS (1) it would then add or delete the same file (s) on the secondary NAS (2). . Apr 23, 2016 · Hi, What are my options (if any) to do nas-nas backup over internet without opening ports? 2-way sync or 1-way backup, either would be interesting. I want all the backups from backup1 NAS device to be synced to backup2 NAS device automatically over internet every night. If you want to back up data from a NAS running DSM 4. Only limit is the speed of your internet connection. Oct 5, 2018 · If you have two synology NASes there are a lot of ways for you to backup your data. I want to use Synology Drive for sync files. Feb 26, 2025 · Hi, Im looking to connect two NAS together via Synology Drive ShareSync. Than setup hyperbackup or other backup solution to backup to remote location. Feb 10, 2020 · Hello to the Resilio Sync community, I've got a question towards a possible use case: My setup are two Synology NAS at different places (they share no local network) that should remotely sync their files via Resilio, so that they are basically mirroring each other. I think I have the same usecase. Syncthing is a continuous file synchronization program. If you have two NAS you would be best to create RAID on each of them. Syncing data is not the same as backing them up. This tutorial will show you how to sync multiple NAS with your Mac or PC. lvtjvvmbqzafdxscdldumrnxcgzbatccnfadwglalkdfunvkutmcprodotkjqcvmurnrcxzrtec