Categories
Downtimes Problems

DoS again?

Are we under attack again? It seems – because the server went down yesterday and today. Sorry for the outage, we are looking into the logs as I write this post. Maybe we can find something…

Categories
Downtimes Maintenance

IPv6 reconfiguration

Since our provider now supports native IPv6 (including reverse DNS) we changed our IPv6 configuration and now no longer use an IPv6 Tunnel Broker. Therefore we had two short service outages today to reboot the machine and activate the new settings.

If you are using IPv6 you might have to flush your DNS (or wait up to 24 hours from now) to get the correct IPs back from DNS.

Categories
Downtimes Problems

Jabber service outage

There was an outage of our Jabber services the last hours. Unfortunally the hard disk ran completly full because of a faultly backup job.

Everything is back online. Sorry guys!

Categories
Downtimes Maintenance Security

Upgrade to ejabberd 2.1.5

During this night (CEST) we upgraded the Jabber server to ejabberd 2.1.5 – this time the Debian package came available very soon. :-)

Categories
Downtimes Maintenance Security

Upgrade to ejabberd 2.1.4

At about noon CEST today I just upgraded the server to ejabberd 2.1.4, which is a bugfixing release. Finally the Debian package is available. Sorry for the less than five minute short service downtime. ;-)

Categories
Downtimes Problems

DoS once again yesterday evening

Once again the server was hit. At around 8pm yesterday evening the services were unreachable for about 30 minutes, the transports for about 60 minutes.

For sure there will be another incident, but this time everything will get logged. From what we then read out of the logs we will choose how we react. If it has something to do with Nimbuzz, we will block Nimbuzz completely.

Categories
Downtimes Problems

DoS attack again…

Again we suffered a DoS attack. The Jabber services and website were down from ~10:45pm to 00:30am.

For sure we have to do something about this. We are already digging into this, also recieving feedback from other Jabber server admins. Maybe abusive Nimbuzz accounts are the reason and, if this turns out to be true, we are also thinking about firewalling Nimbuzz.

What would you think about blocking Nimbuzz? Are you having friends from Nimbuzz in your roster? Tell us your opinion.

Categories
Downtimes Features Maintenance

Pubsub/PEP migration to MySQL complete

…and it seems to work. Sorry for the 30 minute downtime because of that.