Heartbleed?

Posted by – April 8, 2014

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Nope, we’re not affected. KTHXBYE.

Downtime today (colo power supply maintenance)

Posted by – March 14, 2014

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We’ll be shutting jabber.ccc.de down for at about 10:45 CET today since there are planned maintenance works at our colo’s power supply.

These might last a bit too long for our UPS to cope with the outage.

s2s enquiring encryption (at least) for today

Posted by – January 4, 2014

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As mentioned in https://github.com/stpeter/manifesto, we changed the server’s config to require TLS for the server-to-server links.

This might (and possibly will) destroy communications with your friends at Google Talk, since up to now they (Google) do not support TLS on their s2s side of XMPP.

Discussion about this test day can also be found at the XMPP operators list: http://mail.jabber.org/mailman/listinfo/operators

Roster Versioning temporarily disabled

Posted by – November 18, 2013

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This morning we temporarily disabled Roster Versioning (XEP-0237) since it wasn’t working and only threw client errors when requested.

Recent downtimes

Posted by – November 11, 2013

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Just in case you haven’t noticed: We’re experiencing quite a nasty bug (maybe, not proven yet) inside ejabberd which leads to a) ejabberd eating all of the available memory and b) afterwards having one thread run at 100% CPU. At this time, ejabberd stops forwarding packets and accepting new connections.

Just to keep you informed.

P.S.: We do have a Twitter account that might (!) have more up-to-date information than you can find in this blog: @jabberccc.de

New SSL certificates deployed (which fixed S2S, too)

Posted by – October 18, 2013

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Some hours ago we deployed new SSL certificates – those fingerprints can be found at the SSL page.

Luckily this fixed the S2S issues we had with some other servers, too.

Yup, we’re down

Posted by – October 4, 2013

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And since some of use are on holiday and IPMI isn’t working this is about some other entities to help us more.

FYI: We might move to a different hardware this month, so the not-so-working remote console will be fixed.

!Recovery: Memory usage right before...

Server down

Posted by – September 12, 2013

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Server is down, will need remote hands, this will take some time.

09:26 – we’re back.

Getting DDoSed, again

Posted by – August 28, 2013

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DNS amplification attack, same issue as had happened yesterday.

Edit 2013-08-28, 15:45: At least the attack on jabber.ccc.de seems to have been ‘resolved’.

(FYI: This server was being attacked, too – don’t forget to have a look at @jabbercccde on Twitter for additional up-to-date information)

Jabber: Der Chat für alle bleibt eine Utopie

Posted by – June 8, 2013

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Heute frisch im ZDF Hyperland: “Jabber: Der Chat für alle bleibt eine Utopie