XMPP Service Operators - 2018-01-26


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  174. yon https://xiaoyu.net:7443/httpfileupload/a3109f0d-bb4f-4543-a76e-ede7b0c631e7/V7Kxuv24TBWt1JMEZynTHQ.jpg
  175. yon xmpp check not normal work
  176. yon i am using.ecc cert
  177. ThurahT that's a screen shot if I ever saw one
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  181. yon now check.messaging.one
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  338. yon hi
  339. MattJ Hi
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  352. edhelas spam from swissjabber.li
  353. edhelas blacklisting also this server
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  356. Ge0rG just blacklist *@swissjabber.*
  357. Ge0rG > dujin2320@swissjabber.eu wants to subscribe just got that
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  361. edhelas i cannot blacklist with .*
  362. edhelas any idea of all the extensions ?
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  367. Zash Internet search gives https://wiki.xmpp.org/web/SwissJabber.ch
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  370. Ge0rG Which is ancient.
  371. SouL I used to have a MUC there
  372. SouL Because SwissJabber was the only server I could find that allowed like 500 people in a MUC or something like that
  373. SouL maybe 700
  374. Maranda O_o?
  375. Maranda "allowed"
  376. SouL Or could handle
  377. Maranda better
  378. Maranda :P
  379. SouL Whatever you use to describe the participants limit :D
  380. Link Mauve SouL, are there many servers with a limit?
  381. Maranda Don't look here.
  382. Maranda Limiting sounds like +l on IRC, that's why "handling" is better than "allowed"
  383. Link Mauve Are you expecting scaling issues in MUC?
  384. Maranda Yes, are you not?
  385. Maranda :P
  386. Link Mauve Given the very small amount of resources used normally by my servers, no.
  387. SouL Link Mauve, I don't know actually. At that time I didn't even had my own server or anything. So I just kept browsing public servers with Psi+ until I found that one, when modifying the MUC settings, the limit would be really big, compared to the ones I used to use.
  388. Link Mauve SouL, at least in Prosody, there is no limit setting.
  389. Maranda Hmm each message or presence stanza sent to the muc *needs* to get reflected 700 times, does that ring a bell?
  390. Maranda just to begin with.
  391. Link Mauve Maranda, so you’re expecting 700 packets to take your network to its knees?
  392. Ge0rG presence traffic on a MUC is O(N²)
  393. Maranda ^
  394. Holger Link Mauve: Prosody has MUC traffic limits I keep running into with legitimate traffic, though.
  395. Ge0rG mod_muc_limits is absolutely inadequate.
  396. Link Mauve Holger, you mean mod_muc_limit, the one limiting the amount of concurrent messages?
  397. Ge0rG The queue is filled up with CSNs and then your actual messages are rejected.
  398. Ge0rG https://prosody.im/issues/988
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  400. Holger Link Mauve: Probably. I just receive the error stanzas :-)
  401. Link Mauve Note that this is a community module, not part of the server.
  402. Link Mauve If operators use it, they’re on their own.
  403. Holger Link Mauve: So there's some Prosody user in the community who believes that MUC scalability might be an issue :-)
  404. Holger Link Mauve: If they don't, they're not on their own? :-)
  405. Link Mauve Holger, AFAIK, it’s not a solution to scalability, but a solution to random spammers who used to flood MUCs.
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  408. Holger DoS against MUC is easy because MUC doesn't scale.
  409. Maranda Just that that the rtc of most public traffic (presence and messages) in is O(N^2) as Ge0rG pointed out, is enough to tell you how well MUC scales Link Mauve.
  410. Link Mauve Maranda, rtc?
  411. Maranda I think you don't need another reason.
  412. Maranda Running Time Complexity?
  413. Maranda brb
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  416. Maranda tbh while mod_muc_limits isn't perfect it looked to always be one of the few viable solutions to muc servers not getting brought down to their knees by a DoS.
  417. Maranda so I wouldn't really spit on it.
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  419. Ge0rG I'm not spitting on it, it's in use on my server. But I wish somebody would improve it.
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  421. Maranda The improvements I made to it, was making the limit ratio configurable by room (with muc pluggable config), but I'm confident that could be in Prosody's as well.
  422. Ge0rG adhoc commands?
  423. Maranda But I'm not sure that'd fix any issue
  424. Maranda no just room config
  425. Ge0rG Maranda: not in default 0.10 MUC code :(
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  429. Maranda Ge0rG, https://lightwitch.org/Media/Default/Pictures/muc_limit_config.png -- it also can be (? I don't remember if it's the default) setup to ignore traffic from server buddies (xep-267)
  430. Ge0rG Maranda: way too complicated
  431. SouL I like to be able to configure stuff
  432. Ge0rG `[ ] Configure stuff`
  433. Ge0rG `[ 75%] Stuff Stuffyness`
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  435. Maranda Ge0rG, also you know that mod_muc_limits doesn't drop stanzas from affiliated members right?
  436. Ge0rG Maranda: I know
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  463. Marzanna -certinfo chat.jabb.ip
  464. Bunneh Marzanna: Host unreachable: Server-to-server connection failed: DNS resolution failed
  465. Marzanna -certinfo chat.jabb.im
  466. Bunneh Marzanna: chat.jabb.im has a mismatched certificate issued by Let's Encrypt Authority X3
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  488. Maranda -certinfo metronome.im
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  490. Bunneh Maranda: metronome.im has a valid certificate issued by Let's Encrypt Authority X3
  491. yon xiaoyu.net
  492. yon test site only get T result
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  497. nuron The TLS connection failed... You should fix that issue
  498. nuron yon:
  499. yon client can connect
  500. yon i.using ecc cert
  501. yon tls 1.2
  502. yon maybe site cant test ec cert?
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  506. nuron https://uploads.trashserver.net/upload/5Nb8HXHOgUeORUVR/cHnnaS1hRQGd9rjIgVYPKQ.jpg
  507. nuron yon:
  508. nuron Maybe you haven't set an srv record? Or you haven't open this port
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  510. yon which port?
  511. yon 5222 open
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  515. yon should site cant.connect ec cert
  516. yon i have test some clients can work
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  527. nuron Hmm when you have tested the TLS and it works everything will be fine
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  530. yon i shoud is A
  531. yon Recommend a good APP for me?
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  533. yon i download some app not good for use
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