favicon_16 Informations

We use ejabberd as an XMPP service in a cluster network.
For a secure communication with the servers a TLS encrypted connection is enforced.

Operating since:2018-01-05
Server location:Germany
3 dedicated root servers running Proxmox and Docker
(Always use the Onion address in Tor!)
Ports:5222/tcp (STARTTLS)
5223/tcp (SSL)
443/tcp (XMPP over TLS)
3478/udp (STUN/TURN)
3478/tcp (STUN/TURN)
5349/tcp (STUN/TURN)
Issuer:Let’s Encrypt Authority X3
xmpp.net score
Group chat:conference.blabber.im
Storage duration:
max. 500 MiB, no limit to the total size
14 Days
Storage duration:
33 Days
default policy:
only roster (contact list) + MUC (chatroom)
Passwords:hashed (SCRAM-SHA-1)
Sign up:Web and In-Band with Captcha
STUN/TURN:ejabberd_stun module
01/22/2020 03:18 am – 07:51 am: Netsplit at the Hoster. Affected node(s): erebos.xmpp
12/12/2018 04:07 am – 05:03 am: Planned network maintenance at the hoster. Affected node(s): chaos.xmpp, tartaros.xmpp, erebos.xmpp
08/28/2018 09:41 am – 09:58 am: Short router problems at our hoster. Affected node(s): tartaros.xmpp
08/01/2018 00:00 am – 16:00 pm: Strong interference in the cluster, some disconnections been noticeable. Emergency operation on a single node. Affected node(s):chaos.xmpp, tartaros.xmpp, erebos.xmpp
06/25/2018 10:00 am – 11:08 am: Scheduled maintenance on a node without user impact. Affected node(s): tartaros.xmpp
06/14/2018 03:55 am – 07:12 am: Server failure in the data center Strasbourg. Affected node(s): chaos.xmpp, tartaros.xmpp
05/24/2018 11:10 am – 11:32 am: Power outage in data center Falkenstein. Affected node(s): erebos.xmpp
08/05/2018 05:02 pm – 05:19 pm: Cipher Suite cleaned up and hardened. Affected node(s): chaos.xmpp, tartaros.xmpp, erebos.xmpp

favicon_16 Metrics

favicon_16 Enabled Extensions (XEP’s)

XEP-0045: Multi-User Chat
: SOCKS5 Bytestreams (Proxy)
XEP-0115: Entity Capabilities
XEP-0156: Discovering Alternative XMPP Connection Methods (HTTP)
XEP-0157: Contact Addresses for XMPP Services
: PEP (Avatare/OMEMO)
XEP-0191: Blocking
XEP-0198: Stream Management
XEP-0206: XMPP Over BOSH
XEP-0215: External Service Discovery
XEP-0237: Roster Versioning
XEP-0280: Message Carbons
XEP-0313: Message Archive Management (MAM)
XEP-0352: Client State Indication
XEP-0357: Push Notifications
XEP-0363: HTTP File Upload
XEP-0368: SRV records for XMPP over TLS
XEP-0384: OMEMO Encryption
XEP-0401: Easy User Onboarding

favicon_16 XMPP Compliance Test

Report: blabber.im_XMPP_Compliance_Test_2020_10_27
Here is the code and the XMPP Compliance Tester.