Welcome to the jabber.nu XMPP service page!

xmpp.net score



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########## Viewable in any browser

This web page is viewable in any browser, including terminals using lynx etc.



########## About

This server provides access to a Jabber service using the application prosody and 
uses TLS with a commercial certificate for session security. 

This server became operational in June 2021.

YOU the user can (should) also use a user side crypto plugin like OMEMO or OTR. There
are also various plugins supporting OpenPGP/GPG.

There is little to no reason for using Signal etc when Jabber is used with secure and 
trusted clients and using crypto plugins and good operational security. Jabber also 
facilitates usage without being tied to a phone number and can be used on multiple 
devices also at the same time (like Keybase). 

No transport modules to facilitate usage of other IM protocols like ICQ etc are installed. 

Server is open to server-to-server connections so you can have an account elsewhere and 
communicate with users on this server and vice versa.

There may be XMPP modules that are not installed and if that for various reasons is 
not to your liking, you as a user can easily find that out in your client. Should you 
need to know beforehand send a question.

Management is in Sweden and server's physical location is in Germany.

Admin can be reached at:
e-mail: admin [at] jabber.nu 
Jabber: admin [at] jabber.nu 

PS: If you are new to Jabber, a Jabber address and an e-mail adress can be identical 
syntaxically and the same address NEED NOT exist in both (even though they do for this 
user) but they are used with two different protocols. 



########## Getting an account

For now this service is invitation only. This may change. 

You cannot use this service if you do not accept the Privacy policy.



########## Support

In case of support questions, for now use the above admin adresses.
Or maybe call your favorite admin.



########## SLA, backup etc

Free lunches don't come with SLA too.

Having said that - effort is made to have a 24/7 running service, regularly maintained and backups of user data
are performed regurlarly, encrypted and secured off-site.

When software maintenance is planned and away a server wide message is posted by admin. In case of issues
or unforeseen server downtime look at the Mastodon site if there's anything posted. 




########## Various user names are reserved and blocked

*admin
admin*
*administrator
administrator*
root
*master
support
abuse
info
jabber
usenet
news
www
uucp
ftp
noc
security
ssl*
tls*
marketing
sales
list
list-request
majordomo

This list is a given but others still won't be accepted, generally anything implying a 
generic address or service name is disallowed.



########## Some tips

 - General

Good clients are Gajim för Linux/Windows and Conversations for Android.
There are many available, here is one list. Search the web for others.


 - For the sysadmin

If you want to be able to trigger Jabber messages in a system, like warnings for events 
etc there is a perl script called sendxmpp that could be very useful for you. (Optionally 
there is probably some command line based Jabber clients that could be used for this as well).

Anything you could think of putting in your crontab could use this as an action to give you 
real time warnings to your phone and/or desktop client. It might be useful to put the 
sendxmpp commands in a script and then call the script instead.

Other examples of systems that can use Jabber out of the box or as script in triggered 
actions for events are the phenomenal NMS system OpenNMS or the phenomenal file broker 
system CrushFTP.

Read more at https://sendxmpp.hostname.sk and https://github.com/lhost/sendxmpp/.



########## How to learn more

You could simply search the web with words like:

xmpp
jabber 
jabber server
jabber servers
jabber clients
public XMPP servers
public jabber servers
free XMPP servers
free jabber servers

One good place to start is https://xmpp.org/
Another is one of the original services based on XMPP which you can find here https://www.jabber.org/



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