this post was submitted on 22 Jul 2023
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Lemmy.World Announcements

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Today, like the past few days, we have had some downtime. Apparently some script kids are enjoying themselves by targeting our server (and others). Sorry for the inconvenience.

Most of these 'attacks' are targeted at the database, but some are more ddos-like and can be mitigated by using a CDN. Some other Lemmy servers are using Cloudflare, so we know that works. Therefore we have chosen Cloudflare as CDN / DDOS protection platform for now. We will look into other options, but we needed something to be implemented asap.

For the other attacks, we are using them to investigate and implement measures like rate limiting etc.

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[–] Tag365@lemmy.world 24 points 1 year ago (1 children)
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[–] BuckRowdy@lemmy.world 23 points 1 year ago

You’re doing a great job so far. Thanks for the update.

[–] Anaralah_Belore223@lemmy.world 21 points 1 year ago* (last edited 1 year ago) (1 children)

Benefit of using Cloudflare CDN:

Commenting and editing took about 0.5 seconds!

Also, ping is now from 200-300 miliseconds to just between 50 and 60 (depending on your ISP):

64 bytes from 172.67.218.212: icmp_seq=1 ttl=64 time=56.2 ms
64 bytes from 172.67.218.212: icmp_seq=2 ttl=64 time=60.2 ms
64 bytes from 172.67.218.212: icmp_seq=3 ttl=64 time=55.8 ms
64 bytes from 172.67.218.212: icmp_seq=4 ttl=64 time=58.9 ms
64 bytes from 172.67.218.212: icmp_seq=5 ttl=64 time=60.6 ms
64 bytes from 172.67.218.212: icmp_seq=6 ttl=64 time=60.5 ms
64 bytes from 172.67.218.212: icmp_seq=7 ttl=64 time=60.1 ms
64 bytes from 172.67.218.212: icmp_seq=8 ttl=64 time=55.0 ms
64 bytes from 172.67.218.212: icmp_seq=9 ttl=64 time=60.0 ms
64 bytes from 172.67.218.212: icmp_seq=10 ttl=64 time=61.4 ms
64 bytes from 172.67.218.212: icmp_seq=11 ttl=64 time=59.3 ms
64 bytes from 172.67.218.212: icmp_seq=12 ttl=64 time=58.5 ms
64 bytes from 172.67.218.212: icmp_seq=13 ttl=64 time=56.0 ms
64 bytes from 172.67.218.212: icmp_seq=14 ttl=64 time=60.6 ms
64 bytes from 172.67.218.212: icmp_seq=15 ttl=64 time=58.7 ms
[–] BitOneZero@lemmy.world 18 points 1 year ago* (last edited 1 year ago)

The bugs in Lemmy are such that you don't even need to touch a server for it to be vulnerable. Cloudflare does not defend against such mistakes. Other servers can trigger deep PostgreSQL logic problems within Lemmy. Growing pains, a lot of the federation code was never tested, and today's crash is due to a logic issue with lemmy_server mistakenly updating 1700 servers it knows of through federation for a delete instead of the 1 local server.

[–] mordred@lemmy.world 20 points 1 year ago (1 children)

Thank you for your efforts, work and results. Those "attackers" only deserve disgust.

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[–] itadakimasu@lemmy.world 19 points 1 year ago

I'm learning a lot by following lemmy.worlds actions. Appreciate the transparency!

[–] Resol@lemmy.world 19 points 1 year ago (3 children)

What doesn't kill you makes you stronger

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[–] 0Xero0@lemmy.world 18 points 1 year ago (1 children)

now I'm convinced that that cunt spez paid those brats to sabotage us

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[–] Anaralah_Belore223@lemmy.world 18 points 1 year ago* (last edited 1 year ago) (1 children)

The more you attack a Lemmy instance, the more stronger it gets.

It's like tempering iron or steel.

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[–] fence_prude@lemmy.world 18 points 1 year ago (4 children)

Where can we donate toward server costs?

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[–] brentzitkins@lemmy.world 16 points 1 year ago (2 children)

Script Kiddies are definetely some of the saddest people on the internet. If you're gonna be an unethical hacker at all, actually do it. Don't be a sissy.

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[–] db0@lemmy.dbzer0.com 16 points 1 year ago (2 children)

I wonder now with the semi-adversarial/semi-cooperative nature between lemmy instances, if wer'e not going to see more DDOS and other types of raids happening because a different instance has an ax to grind against yours. Say between you defederated them, or they consider your instance too big etc.

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[–] free@lemmy.world 16 points 1 year ago

ty for all ur hard work β™₯️

[–] chipamogli@lemmy.world 16 points 1 year ago (1 children)

Maybe is that Reddit dude, jealous of Lemmy's increasing popularity.

[–] TerryMathews@lemmy.world 14 points 1 year ago (1 children)

It seems like you made this comment in jest, but I wouldn't say it's outside the realm of possibility. We can't fly off the handle and lob accusations absent any sort of proof, but it would hardly be the first example of a corporation targeting an up-and-coming disruptive service run by amateurs.

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[–] zazaserty@discuss.tchncs.de 16 points 1 year ago (3 children)

Damn these script kiddies.. I don't like Cloudflare at all but it does its job well. It may just be my paranoia, but putting a single entity in control of so many websites seems dangerous. I think we have all learned about the intentions of big corporations. But hey, it's better than being taken down tbf.

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[–] AphoticDev@lemmy.dbzer0.com 16 points 1 year ago (1 children)

It's not ideal, but there's not a whole lot of options out there for DDoS mitigation.

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[–] thatguydude@lemmy.world 15 points 1 year ago

I joined July 1 for obvious reasons, I love it here.

I'm asking how many times has lemmy had to deal with these kinds of attacks prior to the "Date shall not be named"

Cause it kinda seems pretty coincidental for the amount of times I've been forced to be "offline" on this platform is gd laughable.

I thumbs up good content always.

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