this post was submitted on 03 Oct 2025
498 points (97.2% liked)

Selfhosted

52007 readers
855 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago
MODERATORS
 

You might not even like rsync. Yeah it's old. Yeah it's slow. But if you're working with Linux you're going to need to know it.

In this video I walk through my favorite everyday flags for rsync.

Support the channel:
https://patreon.com/VeronicaExplains
https://ko-fi.com/VeronicaExplains
https://thestopbits.bandcamp.com/

Here's a companion blog post, where I cover a bit more detail: https://vkc.sh/everyday-rsync

Also, @BreadOnPenguins made an awesome rsync video and you should check it out: https://www.youtube.com/watch?v=eifQI5uD6VQ

Lastly, I left out all of the ssh setup stuff because I made a video about that and the blog post goes into a smidge more detail. If you want to see a video covering the basics of using SSH, I made one a few years ago and it's still pretty good: https://www.youtube.com/watch?v=3FKsdbjzBcc

Chapters:
1:18 Invoking rsync
4:05 The --delete flag for rsync
5:30 Compression flag: -z
6:02 Using tmux and rsync together
6:30 but Veronica... why not use (insert shiny object here)

top 50 comments
sorted by: hot top controversial new old
[–] state_electrician@discuss.tchncs.de 22 points 8 hours ago (5 children)

Why videos? I feel like an old man yelling at clouds every time something that sounds interesting is presented in a fucking video. Videos are so damn awful. They take time, I need audio and I can't copy&paste. Why have they become the default for things that should've been a blog post?

[–] czardestructo@lemmy.world 5 points 4 hours ago

Thank you for putting into words what ive subconsciously been thinking for years. Every search result prioritizes videos at the top and I'm still annoyed every time. Or even worst I have to hunt through a 10 minute video for the 30 seconds of info I needed. Stoohhhhpppp internet of new! Make it good again!

[–] vga@sopuli.xyz 4 points 5 hours ago
[–] Wawe@lemmy.world 6 points 7 hours ago* (last edited 7 hours ago)

They linked blog post with the video: https://vkc.sh/everyday-rsync/

[–] kchr@lemmy.sdf.org 2 points 5 hours ago

Hear hear. Knowledge should be communicated in an easily shareable way that can also be archived as easily, in contrast to a video requiring hundreds of MB:s.

[–] northernlights@lemmy.today 2 points 8 hours ago

Especially for a command line tool

[–] Wispy2891@lemmy.world 1 points 4 hours ago

I tried to use it via tailscale but it disconnects very easily - is to be expected?

[–] vga@sopuli.xyz 2 points 5 hours ago* (last edited 5 hours ago) (2 children)

It's not bad if you don't need historical backups. I kinda think I do, so I use https://github.com/rustic-rs/rustic becase rust

Restic (https://github.com/restic/restic) is probably a better choice if you're not a rust-freak like me.

[–] harambe69@lemmy.dbzer0.com 2 points 3 hours ago

Rustic scares me. I will 100% forget what tool I used to backup after 5 years and be unable to recover my files.

[–] WolfLink@sh.itjust.works 2 points 4 hours ago

I use rsync + ZFS for backups which includes historical backups

[–] 1984@lemmy.today 5 points 8 hours ago* (last edited 8 hours ago)

I never thought of it as slow. More like very reliable. I dont need my data to move fast, I need it to be copied with 100% reliability.

[–] clif@lemmy.world 14 points 23 hours ago

I'll never not upvote Veronica Explains. Excellent creator and excellent info on everything I've seen.

[–] atk007@lemmy.world 23 points 1 day ago (2 children)

Rsnapshot. It uses rsync, but provides snapshot management and multiple backup versioning.

[–] Tja@programming.dev 13 points 1 day ago (1 children)

Yes, but a few hours writing my own scripts will save me from several minutes of reading its documentation...

[–] atk007@lemmy.world 3 points 1 day ago (1 children)

It took me like 10 min to setup rsnapshot (installing, and writing systemd unit /timer files) on my servers.

[–] Tja@programming.dev 10 points 23 hours ago (1 children)

I'm sure I could script something similar in under 10 (hours).

[–] ehyuman@lemmy.dbzer0.com 1 points 9 hours ago

Man ilove being autostic

Yah, I really like this approach. Same reason I set up Timeshift and Mint Backup on all the user machines in my house. For others rsync + cron is aces.

[–] TheWilliamist@lemmy.world 4 points 23 hours ago* (last edited 23 hours ago)

I still prefer tar for quick and dirty same box copies.

tar cf - * | (cd /target; tar xfp -)
[–] Appoxo@lemmy.dbzer0.com 4 points 1 day ago

Veeam for image/block based backups of Windows, Linux and VMs.
syncthing for syncing smaller files across devices.

Thank you very much.

[–] RestrictedAccount@lemmy.world 6 points 1 day ago (4 children)

I use syncthing.

Is rsync better?

Syncthing works pretty well for me and my stable of Ubuntu, pi, Mac, and Windows

[–] MangoPenguin@lemmy.blahaj.zone 8 points 12 hours ago

Different tools for different use cases IMO.

But neither do backups.

[–] EncryptKeeper@lemmy.world 8 points 1 day ago

I’m not super familiar with Syncthing, but judging by the name I’d say Syncthing is not at all meant for backups.

[–] conartistpanda@lemmy.world 6 points 1 day ago

Syncthing is technically to synchronize data across different devices in real time (which I do with my phone), but I also use it to transfer data weekly via wi-fi to my old 2013 laptop with a 500GB HDD and Linux Mint (I only boot it to transfer data, and even then I pause the transfers to this device when its done transferring stuff) so I can have larger data backups that wouldn't fit in my phone, since LocalSend is unreliable for large amounts of data while Synchting can resume the transfer if anything goes wrong. On top of that Syncthing also works in Windows and Android out of the box.

[–] WhyJiffie@sh.itjust.works 5 points 1 day ago

its for a different purpose. I wouldn't use syncthing the way I use rsync

[–] quick_snail@feddit.nl 18 points 1 day ago (2 children)
[–] HereIAm@lemmy.world 7 points 1 day ago (1 children)

Compared to something multi threaded, yes. But there are obviously a number of bottlenecks that might diminish the gains of a multi threaded program.

[–] Tja@programming.dev 6 points 1 day ago

With xargs everything is multithreaded.

[–] okamiueru@lemmy.world 9 points 1 day ago (1 children)

That part threw me off. Last time i used it, I did incremental backups of a 500 gig disk once a week or so, and it took 20 seconds max.

[–] Biscuit@ani.social 3 points 14 hours ago

Yes but imagine.. 18 seconds.

[–] NuXCOM_90Percent@lemmy.zip 68 points 1 day ago (4 children)

I would generally argue that rsync is not a backup solution. But it is one of the best transfer/archiving solutions.

Yes, it is INCREDIBLY powerful and is often 90% of what people actually want/need. But to be an actual backup solution you still need infrastructure around that. Bare minimum is a crontab. But if you are actually backing something up (not just copying it to a local directory) then you need some logging/retry logic on top of that.

At which point you are building your own borg, as it were. Which, to be clear, is a great thing to do. But... backups are incredibly important and it is very much important to understand what a backup actually needs to be.

[–] Colloidal@programming.dev 4 points 23 hours ago

Borg gang represent!

[–] tal@olio.cafe 23 points 1 day ago* (last edited 1 day ago) (8 children)

I would generally argue that rsync is not a backup solution.

Yeah, if you want to use rsync specifically for backups, you're probably better-off using something like rdiff-backup, which makes use of rsync to generate backups and store them efficiently, and drive it from something like backupninja, which will run the task periodically and notify you if it fails.

rsync: one-way synchronization

unison: bidirectional synchronization

git: synchronization of text files with good interactive merging.

rdiff-backup: rsync-based backups. I used to use this and moved to restic, as the backupninja target for rdiff-backup has kind of fallen into disrepair.

That doesn't mean "don't use rsync". I mean, rsync's a fine tool. It's just...not really a backup program on its own.

load more comments (8 replies)
load more comments (2 replies)
[–] mesamunefire@piefed.social 44 points 1 day ago (12 children)

Ive personally used rsync for backups for about....15 years or so? Its worked out great. An awesome video going over all the basics and what you can do with it.

load more comments (12 replies)
[–] sugar_in_your_tea@sh.itjust.works 19 points 1 day ago (3 children)

Yeah it’s slow

What's slow about async? If you have a reasonably fast CPU and are merely syncing differences, it's pretty quick.

load more comments (3 replies)
load more comments
view more: next ›