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7 months agoConsider TrueNAS Scale with mirrored drive pairs DIY.
Dark Arc
Primary account is now @Dark_Arc@social.packetloss.gg.
- 1 Post
- 15 Comments
Joined 1 year ago
Cake day: June 13th, 2023
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Not sure what you’re using to generate that list/formatting is a bit difficult.
I don’t have a cluster since it’s effectively single user + @Auto_Post_Bot@social.packetloss.gg (in theory a few other people have access, but they’re not active), single machine, it’s just more or less the out of the box docker stuff on a bare metal machine in my basement + a digital ocean droplet.
The droplet is what I’m using to have a static IP to prevent dynamic DNS nonsense + it provides some level of protection against a naive DDoS attack on random fediverse servers (since I can in the worst case, get on my phone and severe the ZeroTier connection that’s using to connect the droplet to my basement server).
I’m pretty confident whatever is going on is payload related at this point.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 50622 70 20 0 330264 240200 201512 S 0.0 0.7 0:25.21 postgres 50636 70 20 0 327804 239520 201296 S 0.0 0.7 0:26.55 postgres 50627 70 20 0 327204 239152 201592 S 0.0 0.7 0:24.75 postgres 50454 70 20 0 328932 238720 200872 S 0.0 0.7 0:26.61 postgres 50639 70 20 0 313528 217800 193792 S 0.0 0.7 0:03.13 postgres 50641 70 20 0 313284 217336 194204 S 0.0 0.7 0:03.15 postgres 50626 70 20 0 313592 216604 193636 S 0.0 0.7 0:05.07 postgres 50632 70 20 0 313236 216460 193968 S 0.0 0.7 0:04.52 postgres 50638 70 20 0 310368 216084 193856 S 0.0 0.7 0:04.20 postgres 50614 70 20 0 310520 216072 193840 S 0.0 0.7 0:02.88 postgres 50642 70 20 0 312200 215920 194068 S 0.0 0.7 0:04.46 postgres 50640 70 20 0 312584 215724 193676 S 0.0 0.7 0:03.32 postgres 50635 70 20 0 309744 215404 193764 S 0.0 0.7 0:02.72 postgres 50630 70 20 0 312168 215224 193488 S 0.0 0.7 0:02.67 postgres 50621 70 20 0 309560 215096 193772 S 0.0 0.7 0:02.97 postgres 50646 70 20 0 309492 215008 193560 S 0.0 0.7 0:04.66 postgres 50625 70 20 0 309760 215004 193368 S 0.0 0.7 0:03.08 postgres 50637 70 20 0 309296 214992 193848 S 0.0 0.7 0:02.87 postgres 50616 70 20 0 310596 214984 192700 S 0.0 0.7 0:04.17 postgres 50643 70 20 0 310392 214940 194008 S 0.0 0.7 0:04.14 postgres 50624 70 20 0 310128 214880 192928 S 0.0 0.7 0:04.15 postgres 50631 70 20 0 310220 214596 192576 S 0.0 0.7 0:02.71 postgres 50613 70 20 0 309364 213880 192520 S 0.0 0.7 0:04.06 postgres 50628 70 20 0 309852 213236 191504 S 0.0 0.7 0:03.04 postgres 50634 70 20 0 187772 163388 149428 S 0.0 0.5 0:02.87 postgres 50644 70 20 0 189684 162892 148508 S 0.0 0.5 0:04.11 postgres 50633 70 20 0 186096 162544 149324 S 0.0 0.5 0:03.20 postgres 50629 70 20 0 185644 162112 149296 S 0.0 0.5 0:04.62 postgres 50618 70 20 0 186264 160576 147928 S 0.0 0.5 0:04.10 postgres 50582 70 20 0 185708 160236 147592 S 0.0 0.5 0:04.10 postgres 3108 70 20 0 172072 144092 142256 S 0.0 0.4 0:04.46 postgres 3109 70 20 0 172024 142404 140632 S 0.0 0.4 0:02.24 postgres 2408 70 20 0 171856 23660 22020 S 0.0 0.1 0:00.76 postgres 3113 70 20 0 173536 9472 7436 S 0.0 0.0 0:00.15 postgres 3112 70 20 0 171936 8732 7020 S 0.0 0.0 0:01.54 postgres 3114 70 20 0 173472 5624 3684 S 0.0 0.0 0:00.00 postgresI’ve got quite a bit of experience with postgres; I don’t see any indication it’s the problem.
So, I think this is a (helpful) general comment but wrong in this/my specific case.
The server is so small it’s not really going to register on a 10-minute frequency for outgoing content – I’m not that much of a lemmy addict! haha.
You can see in a comment here my most recent comment to lemmy.world did sync: https://lemmy.world/comment/8728858
I’m not having any issues with outgoing content, beehaw, the KDE instance, and several others. It’s just lemmy.world that’s acting up (which is unfortunately because it’s my favorite – I mod/run several communities and donate to here/them – haha).
Yeah, I mean things should be fine in general; like I said this has been working for quite a long time now without issue.
The machine that’s actually doing the work here is quite powerful and is used to run several game servers in addition to Lemmy … Lemmy really isn’t much more than footnote in resource usage:
CPU: Info: 8-core model: Intel Core i7-10700 bits: 64 type: MT MCP cache: L2: 2 MiB Speed (MHz): avg: 4653 min/max: 800/4800 cores: 1: 4698 2: 4685 3: 4786 4: 4704 5: 4694 6: 4700 7: 4800 8: 4801 9: 4802 10: 3408 11: 4756 12: 4713 13: 4706 14: 4707 15: 4798 16: 4703 Drives: Local Storage: total: 931.51 GiB used: 380.39 GiB (40.8%) ID-1: /dev/nvme0n1 vendor: Western Digital model: WDS100T2B0C-00PXH0 size: 931.51 GiB Partition: ID-1: / size: 914.18 GiB used: 380.02 GiB (41.6%) fs: xfs dev: /dev/dm-0 ID-2: /boot size: 1014 MiB used: 370 MiB (36.5%) fs: xfs dev: /dev/nvme0n1p2 ID-3: /boot/efi size: 598.8 MiB used: 5.8 MiB (1.0%) fs: vfat dev: /dev/nvme0n1p1 Swap: ID-1: swap-1 type: partition size: 15.71 GiB used: 1.2 MiB (0.0%) dev: /dev/dm-1 Sensors: System Temperatures: cpu: 28.0 C pch: 26.0 C mobo: N/A Fan Speeds (rpm): N/A Info: Processes: 358 Uptime: 16h 39m Memory: total: 32 GiB note: est. available: 30.77 GiB used: 8.54 GiB (27.8%) Init: systemd target: multi-user (3) Shell: fish inxi: 3.3.30
So, I think you’re most on the right track of the responses…
It seems to just be exclusively incoming from lemmy.world. If you look here, my most recent comment is on lemmy.world:
https://social.packetloss.gg/comment/1415801 https://lemmy.world/comment/8710941
The instance just isn’t getting any new posts, comments, or votes back from lemmy.world.
Everytime I shut down the lemmy server I see this:
2024-03-23T17:34:33.774333Z WARN lemmy_server: Received ctrl-c, shutting down gracefully... 2024-03-23T17:34:33.774912Z WARN lemmy_federate: Waiting for 1618 workers (30.00s max)That number never seems to move, there are always 1618 works. I’m not sure if that means anything or not regarding pending processing or what have you.
I am seeing in my publicly facing nginx logs:
135.181.143.221 - - [22/Mar/2024:12:23:28 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:23:40 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:23:54 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:24:12 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:24:38 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:25:21 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:26:35 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:28:53 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:33:19 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:42:01 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:12:59:15 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:13:33:33 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 135.181.143.221 - - [22/Mar/2024:21:31:55 +0000] "POST /inbox HTTP/1.1" 499 0 "-" "Lemmy/0.19.3; +https://lemmy.world"There’s then an internal nginx server that sees:
10.241.127.2 - - [22/Mar/2024:12:23:18 +0000] "POST /inbox HTTP/1.1" 200 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:24:19 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:24:31 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:24:45 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:25:03 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:25:29 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:26:11 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:27:25 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:29:43 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:34:09 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:12:42:51 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:13:00:06 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:13:34:24 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:14:42:49 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:16:59:32 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [22/Mar/2024:21:32:45 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world" 10.241.127.2 - - [23/Mar/2024:06:39:03 +0000] "POST /inbox HTTP/1.1" 408 0 "-" "Lemmy/0.19.3; +https://lemmy.world"So, things did start timing out. I’m not sure what to do about that though.
This server is not resource starved:
load average: 0.04, 0.09, 0.10 total used free shared buff/cache available Mem: 31507 7651 1092 164 22764 23239 Swap: 16087 1 16086It’s just this lemmy.world data that’s suddenly out of wack after months of normal operation (both on lemmy 18 and 19).
It feels like a bad payload that the server just can’t move past for some reason and lemmy.world keeps sending.
I had logging on the lemmy container itself piped to /dev/null because it’s just such a noisy log. I turned it back on… I’ll see if I can find more information next time lemmy.world posts.
Yeah I’m basically the only user of this server. Good data point that you’re not having issues though.
It’s been up on 19.x for a few months now. It’s also a full on bare metal server with a ton of resources, it’s not at all starved.
It’s almost like someone posted something to somewhere that “jammed” Lemmy and it just won’t get past it but I’m not sure how to figure out what that would be or how to unjam things.
I don’t know anything about Netbird, but I’ll link you to my ZeroTier pitch the last time I noticed someone talking about Tailscale: https://lemmy.world/comment/1058287.
If you send these files over SSH, you’re good as that’s encrypted by ZeroTier and then encrypted again inside the SSH connection (and SSH does have perfect forward security).
See their cryptography section of their docs for more info.
You can read more here about what they’re working on:
- https://www.zerotier.com/blog/research-notes-on-2-x-cryptography/
- https://www.zerotier.com/blog/research-notes-aes-gmac-ctr-siv/
It’s been to long since I’ve read that to give anything more than a condensed “they’re improving their crypto significantly with ZeroTier 2” (not to mention memory safety via Rust).
I think it’s pretty secure and it will be getting better soon. In reality, I think it’s much more secure than what most people will end up with otherwise.
ZeroTier is open source, long running without incident, and the traffic is encrypted between peers.
The threat model is basically two fold though, in theory someone who has control of the ZeroTier roots (if you’re not using your own controller, if you’re using your own, then s/their roots/your roots/) could add routes to your devices, and add/remove devices that are part of your confirmation.
The encryption also doesn’t currently have perfect forward security, so if there’s a compromise in one of your connections, in theory some past state of that connection could be decrypted. In practice, I’m not sure this matters as traffic at a higher level for most sensitive things uses its own encryption and perfect forward security (but hey maybe you have some software that doesn’t).
The other thing I will note about that last point is that they’re working on a rust rewrite that will have updated crypto, including perfect forward security.
FOSS just means the software is open source. As I said, you can self host ZeroTier and not involve their servers (if you’re not doing things commercially, you pay for the license but still run your own controllers, or you use an older version which has been automatically relicensed by the change date to Apache 2.0).
That said, the traffic is peer-to-peer, in the majority of use cases there servers are acting as a bit more than syncthing’s servers (acting to facilitate the connection between two devices that want to talk together). See the other comment for some more thoughts here.
I’ll pitch ZeroTier instead, it’s the same concept, but it’s more FOSS friendly, older, doesn’t have the non-networking “feature bloat” of Tailscale, and can handle some really niche cases like Ethernet bridging (should you ever care).
Just:
- Go to their website, create an account, and create a network
- Add ZeroTier to the devices you need to connect
- Enter your network ID on those devices
- Approve the devices in the web control panel
If you want to go full self hosting, you can do that too but you will need something with a static IP to control everything (https://docs.zerotier.com/self-hosting/network-controllers/?utm_source=ztp) this would replace the web panel parts.
You can also do a LAN routing based solution pretty easily using something like a Raspberry Pi (or really any Linux computer).
I prefer ZeroTier, I’m not sure why Tailscale has taken off so much in recent years (perhaps just the cleaner UI and better marketing).
I’ve tried to switch in the past, but tripped over the differences in Podman vs Docker networking. IIRC Docker is better for creating an isolated network.
I have noticed that Docker doesn’t do the best job at graceful shutdowns (say for automatic installation of updates). I suspect Podman with systemd integration could do much much beter.
It’s a lot more than a random text editor.
It’s a text editor from (at least some of) the people that made Atom at GitHub (with the explicit premise of learning from Atom/building a faster, better, Atom).
The business plan is to sell collaboration features (e.g., remote pair programming).