RIOT
Establishing a Matrix Chat
- Establishing a Matrix Chat
- Important KB-Links (the website is only available in MWN Network):
There are three ! Matrix-Servers:
1 matrix.tum.de (LRZ-ID)
1 matrix.in.tum.de (RBG-TUM-ID)
1 matrix.ma.tum.de (RBG-TUM-ID)
1 matrix.cit.tum.de (RBG-TUM-ID)
You can log in any of them with the appropriate ID and password.
The !Element Server is available as web but also as client. It can be found as web interface under the following links:
matrix.in.tum.de (RBG-TUM-ID)
Here you can find installation for IOS, Android, Mac, Linux and Windows.
Log in
Log in to the web interface with TUM login data
Webseite: https://matrix.tum.de ID: LRZ-ID (without @mytum.de or @tum.de) Password: LRZ/TUM Password
Log in to the web interface with in.tum login data
Webseite: https://matrix.in.tum.de ID: RBG(in.tum)-ID (without @in.tum.de) Password: in.tum Password
Log in to the web interface with ma.tum login data
Webseite: https://matrix.ma.tum.de ID: RBG(ma.tum)-ID (without @ma.tum.de) Password: ma.tum Password
Create new chat room
If you want to create a new chat room, first click the +-Button next to Rooms in the program or on the web inferface and then enter the name of the chat room. You can also block users on other servers from joining the room or enable encryption. You can't change these settings later.
Explore rooms
It is also possible to make the room public. Then the chat room is visible to others and can be found via Explore rooms. This setting can be changed later.
The chat room Test-RBG is private, so it is not visible to others and participants can only join the room by invitation.
Invite into the chat room
Requirement: The member which is been invited has registered once on the same TUM/RBG Matrix Server
If you want to invite new members to the room, click the button Invite to this room at the top right of the program or the web interface.
Enter followings in the opened window:
For in.tum or ma.tum Accounts: e.g. @musterma:in.tum.de
@in.tum/ma.tum-ID:in/ma.tum.de
For TUM Accounts:
@lrz-Kennung:tum.de
and send the invitation to the e-mail address of the person to be invited, that means to the RBG(in.tum/ma.tum) or TUM email address.
The invitation will appear in the element chat window and must be accepted.
private chat
Requirement: The member which is been invited has registered once on the same TUM/RBG Matrix Server
You can also privatly chat with other in !Element. If you want to chat with a member privatly, click on the +-Button beside People in the program or on the web interface.
Enter followings in the opened window:
For in.tum or ma.tum Accounts: e.g. @musterma:in.tum.de
@in.tum/ma.tum-ID:in/ma.tum.de
For TUM Accounts:
@lrz-Kennung:tum.de
and send the invitation to the e-mail address of the person to be invited, that means to the RBG(in.tum/ma.tum) or TUM email address.
The invitation will appear in the element chat window and must be accepted.
keys for encrypted rooms
After the first login, the following window appears. Here you can either generate a Security Key or a Security Phrase. The following screenshot shows how to generate a security key. This key or passphrase must be entered at every login, to make sure encrypted messages can be decrypted.
Next step you can download or copy the security key. If you click on Download, a .txt file with security key will be downloaded. The decryption is now only possible with this key, if you log out and login again.
The next time you login, the window below will appear. You can select Use recovery key or skip this step.
Then you can enter the Secuirity Key or upload the text file with the Secuirity Key.
Then click on DONE and you can see the encrypted messages.
If you lost the recovery key or forgot the passphrase, you can create a new key or enter a new passphrase, especially when you setup your new laptop or you have to log out. Otherwise. the encrypted messages cannot be read.
To do this, click on the symbol with 3 dots beside your user name and select Security and Privacy. Security and Privacy settings can also be found in All Settings .
Then click on delete backup.
User Settings
These settings can be found on your own user name. There is a symbol with 3 dots (on the web interface there is another symbol). After you click on it, a list of opens. Now you can select All Settings, Security and Privacy, Notifications Settings, Feedback and Logout from the list.
All Settings
If you select All Settings under User Settings, you can see all detailed settings in the opened window.
General
In General Settings you can enter or change username, language, e-mail address and phone nummer. You can also upload, remove or change the Profile Picture.
Appearance
You can change the appearance settings, which will only affect the cur session.
Flair
These settings are irrelevant if you don't belong to any community.
Notifications
You can set when and how you want to be notified.
Preferences
Settings for Room list, Composer, Timeline etc.
Voice & Video
Settings for Audio Output, Microphone, and Camera. These settings are only available in element App. Peer-to-peer can also be activated for 1-1 call.
The following settings are available on the web interface.
Security and Privacy
In this area you can see with which devices you have been logged on Element. You can mark these sessions and delete them.
Then there is area for Key backup. You can restore or delete the session.
There are also settings for Message search, Cross-signing and Advanced.
Help & About
Here are the settings for Bug reporting, FAQ, Versions, Legal, Credits and Advanced.
Settings for People
General
Show options
On the left side of People, you can view and adjust the options for all people.
Start chat
You can invite other users to a chat room or chat privately, if you click on the + button on the left side of people.
Room Settings
You can adjust the room settings for private chat by clicking the gear icon at the top.
Share room
If you click on Share room at the top, you can share the room with other users.
Manage Integrations
If you click the third symbol at the top, you can select existing integrations and add new integrations.
Search
If you click on the Magnifying glass symbol at the top, you can search for a word in the chat. The message with this search word will be displayed. You can search for a word in the current chat room or in all chat rooms.
Show/hide members
If you click the person symbol at the top, you can show or hide members.
Files
If you click the file symbol at the top right, you can see all the files that were shared in the chat. If you select a file, you can download or remove it.
Notifications
If you click the last symbol on the top right corner, you can see all the notifications in the chat. There you can also see the messages from other chat users. If you click on a message, the message of the person in the corresponding chat room wil be displayed.
Room options
If you click on a Person in people, the settings are displayed. The symbol with 3 dots leads to room options.
Notification options
The symbol with bell stands for notification options. You can adjust the notification for the selected person.
Settings for rooms
General
Show options
On the left side of rooms, you can display and adjust the options for all rooms.
Create new room
If you click the + button, you can create a new chat room.
Room Options
If you click the gear icon at the top, you can adjust the room settings for chat room.
Share room
If you click on Share room at the top, you can share the room with other users.
Manage Integrations
If you click the third symbol at the top, you can select existing integrations and add new integrations.
Search
If you click on the Magnifying glass symbol at the top, you can search for a word in the chat. The message with this search word will be displayed. You can search for a word in the current chat room or in all chat rooms. 
Show/hide members
If you click the person symbol at the top, you can show or hide members.
Files
If you click the file symbol at the top right, you can see all the files that were shared in the chat. If you select a file, you can download or remove it.
Notifications
If you click the last symbol on the top right corner, you can see all the notifications in the chat. There you can also see the messages from other chat users. If you click on a message, the message of the person in the corresponding chat room wil be displayed.
Room options
If you click on a Person in people, the settings are displayed. The symbol with 3 dots leads to room options.
Notification options
The symbol with bell stands for notification options. You can adjust the notification for the selected person.
