Skip to main content

Cerca

Elementi taggati con: muc


 

Public Jabber Chat rooms



Christopher Muclumbus: A listing of public XMPP/Jabber chat rooms/groups.



If you are in a public MUC, that is not yet listed, you can add it by inviting xmpp:christopher.muclumbus@dreckshal.de to the room. In Gajim, you have to type in the message field when you are in the specific chatroom: /invite christopher.muclumbus@dreckshal.de.

#xmpp #jabber #muc #federation #chatroom #freesoftware #agpl

 

biboumi 7.0 released



biboumi is an XMPP server component, that acts as a gateway to IRC. It is used e.g. by movim.eu and other public XMPP servers. But it is also very easy to install and configure on your own XMPP server, if you happen to run one.

According to the changelog, the new version supports PostgreSQL in addition to SQLite and fixes a number of bugs.

You may want to join the XMPP MUC xmpp:biboumi@muc.poez.io?join, especially if you are a C++ hacker and like to help.

#xmpp #biboumi #irc #muc #postgresql #sqlite #freesoftware #cplusplus #cpp14

 

Use IRC from XMPP with Debian



Biboumi 6.1-1~bpo9+1 and Prosody 0.10.0-1~bpo9+1 are now available in Debian 9 (stable, stretch) via backports. Biboumi is a gateway from XMPP to IRC and can be used with Prosody or any other XMPP server. It allows XMPP users to join IRC channels as if they were MUCs. Very useful!

#biboumi #prosody #xmpp #debian #freesoftware #irc #muc

 

todxs@salas.diaspora.com.ar



¡Una sala para todos los usuarios XMPP!



#XMPP #salas de chat #MUC #DAr #diasporaargentina

 

End-to-End Encrypted group chats via XMPP



Jamie McClelland writes, that it is still difficult to have a secure group chat. But it's possible.
Use either Conversations for Android (f-droid or Play) or Gajim for Windows or Linux [...]

Ensure that everyone in your group has added everyone else in the group to their roster [...]

Create the group in the android Conversations app, not in Gajim [...]

#xmpp #muc #conversations #gajim #omemo #encryption

End-to-End Encrypted group chats via XMPP


 

Available Debian package updates via XMPP



Long time ago, I needed an XMPP bot informing the admin chat room about Debian package updates on different machines. I didn't found one, so I hacked a small script, called Pain in the APT.

What does it do?

  • updates the APT cache and checks for updates
  • sends list of available updates to Jabber contacts or a conference room immediately
  • sends list of available updates and relevant changelogs (slow) to email recipients
  • downloads packages, but does not install them
Maybe it is useful for one or the other. It's in Debian unstable and testing (9/stretch), and via backports in stable (8/jessie) and oldstable (7/wheezy) as painintheapt.

#xmpp #bot #muc #debian #apt #jabber

Pain in the APT


 

MIX Is Coming to Town



Mediated Information eXchange (MIX) is the proposed successor of the well-known Multi-User Chat (MUC). Ralph Meijer, chair of XSF and director of XMPP Council, writes about the not-so-far future of this XMPP extension:
MIX takes the good parts of the Multi User Chat (MUC) protocol, that has been the basis of group chat in XMPP for quite a while, redesigned on top of XMPP Publish-Subscribe. Modern commercial messaging systems, for business use (e.g. Slack and HipChat), as well as for general use (e.g. WhatsApp, WeChat, Google's offerings), have tried various approaches on the ancient model of multi-part text exchange, adding multi-media and other information sources, e.g. using integrations, bots, and cards.

MIX is the community's attempt to provide a building block that goes beyond the tradional approach of a single stream of information (presence and messages) to a collection of orthogonal information streams in the same context. ... All-in-all MIX allows for much richer, multi-modal, and more scalable interactions. ... I expect the discussions at the XMPP Summit to tie the loose ends as a prelude to initial implementations.

I am sure that FOSDEM and the XMPP Summit will have many more exciting topics, so I hope to see you there. Until then, Jabber on!

#xmpp #jabber #muc #mix #fosdem #xsf

ralphm's blog


 

[Bitcoin Munich] Next Meetup: Thursday, Dec 22nd - Paper Wallets Workshop



https://www.meetup.com/Bitcoin-Munich/events/233919372/

Did you know you can print your bitcoins on paper and store them safely offline that way? Also holiday season is near, so we'll have an introduction talk and workshop about paper wallets, which make an original and unusual Christmas gift as well.




Apart from that, far beyond the use in Bitcoin and crypto-currencies, the concept of private and public keys, as depicted on such a paper wallet, may become more and more pervasive in the future in general. Passwords seem to be unsafe, as users forget them or pick too easy ones. And no matter what certain big hardware and OS manufacturers try to tell you, biometric identification like face or fingerprint recognition is unsafe as well and can easily be spoofed, as often demonstrated by ethical hackers.

So we'll take a look how secure (while hopefully still easy) identification and authentication may look in the future of a blockchain world. Maybe personal crypto-key management can and will some day become an intuitive habit in everyday life, just like we're used to handle our physical keys.

Target audience: Beginners

You're encouraged to bring your tablets or notebooks for this hands-on session! You should already own some bitcoins (or fractions), and have a wallet installed, e.g. Electrum.

Timetable:

19:00 Doors open, get-together, food + drinks

19:30 Bitcoin & Blockchain news roundup

20:00 Rupert Zinnecker: Paper Wallets for Crypto-Currencies
  • What are crypto-currencies?
  • How do I manage my crypto-currency units? ⇒ Wallets, especially paper wallets
  • Why do paper wallets work? ⇒ Blockchain technology
  • The paperwallet.bit website
  • Paper wallets as crypto cash, is that possible?
20:30 Workshop: Try it yourselves! And/or drinks, snacks, get-together. Open end!

You're very welcome to bring little things (cookies, tea-light candles, etc) to contribute to an xmas party atmosphere. Maybe leave a comment or contact one of the organizers so that we can better coordinate initiatives in this direction! Thank you!

#bitcoin #blockchain #meetup #munich #münchen #muc #bitcoinmuc #treffen #workshop #talk #talks #paper #wallet #paperwallet #paperwallets #crypto #cryptography #security #authentication #id #identification

 

[Bitcoin Munich] Next Meetup: Thursday, Dec 22nd - Paper Wallets Workshop



https://www.meetup.com/Bitcoin-Munich/events/233919372/

Did you know you can print your bitcoins on paper and store them safely offline that way? Also holiday season is near, so we'll have an introduction talk and workshop about paper wallets, which make an original and unusual Christmas gift as well.




Apart from that, far beyond the use in Bitcoin and crypto-currencies, the concept of private and public keys, as depicted on such a paper wallet, may become more and more pervasive in the future in general. Passwords seem to be unsafe, as users forget them or pick too easy ones. And no matter what certain big hardware and OS manufacturers try to tell you, biometric identification like face or fingerprint recognition is unsafe as well and can easily be spoofed, as often demonstrated by ethical hackers.

So we'll take a look how secure (while hopefully still easy) identification and authentication may look in the future of a blockchain world. Maybe personal crypto-key management can and will some day become an intuitive habit in everyday life, just like we're used to handle our physical keys.

Target audience: Beginners

You're encouraged to bring your tablets or notebooks for this hands-on session! You should already own some bitcoins (or fractions), and have a wallet installed, e.g. Electrum.

Timetable:

19:00 Doors open, get-together, food + drinks

19:30 Bitcoin & Blockchain news roundup

20:00 Rupert Zinnecker: Paper Wallets for Crypto-Currencies
  • What are crypto-currencies?
  • How do I manage my crypto-currency units? ⇒ Wallets, especially paper wallets
  • Why do paper wallets work? ⇒ Blockchain technology
  • The paperwallet.bit website
  • Paper wallets as crypto cash, is that possible?
20:30 Workshop: Try it yourselves! And/or drinks, snacks, get-together. Open end!

You're very welcome to bring little things (cookies, tea-light candles, etc) to contribute to an xmas party atmosphere. Maybe leave a comment or contact one of the organizers so that we can better coordinate initiatives in this direction! Thank you!

#bitcoin #blockchain #meetup #munich #münchen #muc #bitcoinmuc #treffen #workshop #talk #talks #paper #wallet #paperwallet #paperwallets #crypto #cryptography #security #authentication #id #identification

 

Ethereum Must Drop Turing Completeness, Or It Will Fail



Great talk by Meredith tonight at the Ethereum Meetup in Munich (as announced a few posts back) that dived deep into certain aspects of blockchain protocols.



"The single one element you get from the blockchain you don't get from other tools is consensus. If you don't need consensus, you don't need a blockchain!"

In Bitcoin, the consensus is about transactions. Also its transaction language is probably context-free, but it's very cautiously and conservatively implemented. Its subset is probably regular.


In Ethereum, consensus is about .. well, anything. Its transaction language is deliberately Turing-complete, and about as readable as any other programming language.


Cryptographic Trust -- But of what?
Would you trust this contract?
How about now that I signed it?
Then why did anyone sign on with TheDAO?

How did TheDAO hack happen? http://hackingdistributed.com/2016/06/18/analysis-of-the-dao-exploit/

How do we stop this from happening again?
You don't.
Unless you're willing to listen to her: "No More Turing Complete Input Languages!"
Rice's Theorem: For any non-trivial property of partial functions, no general and effective method can decide whether an algorithm computes a partial function with that property.
Thus, Ethereum should drop its Turing-complete language, or things like TheDAO hack will happen again and again!
Meredith L. Patterson is an American technologist, science fiction writer, and journalist. She has spoken at numerous industry conferences on a wide range of topics. She is also a blogger and software developer, and a leading figure in the biopunk movement.
#owncontent #meetup #ethereum #bitcoin #muc #munich #ethmuc #security #crypto #cryptography #consensus #blockchain #cs #computerscience #linguistics #language #languages #contextfree #contextfreelanguage #regular #regularlanguage #turing #turingcomplete #turingcompleteness #thedao #hack #rice #ricestheorem #meredithpatterson #meredithlpatterson

Ethmuc 2016 09 b bitcoin consensus about transactions

Image Ethmuc 2016 09 b bitcoin consensus about transactions in Herzmeister's images album

 

XMPP Mobile groupchat — Introducing MUC Subscription (MUC Sub)



Sounds like a good idea: XMPP groupchat (MUC) without needing presence, i.e. staying in without being online all the time. IMHO, not only interesting for mobile, but all users. https://blog.process-one.net/xmpp-mobile-groupchat-introducing-muc-subscription/ #xmpp #muc #ejabberd