Changes for page Matrix

Last modified by Stefan Schwalb on 2023/08/28 20:39
From version 23.1
edited by Aysegül Omus
on 2023/08/23 18:55
Change comment: There is no comment for this version
To version 34.2
edited by Jonas Jelten
on 2023/08/28 16:50
Change comment: There is no comment for this version

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1 -XWiki.kahraman
1 +XWiki.jelten
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1 1  {{toc/}}
2 2  
3 3  
4 -= Establishing a Matrix Chat =
4 +== What is Matrix? ==
5 5  
6 6  
7 +[[image:https://element.io/images/Ui-grad-homepage.png||height="677" width="942"]]
7 7  
8 -== What is matrix? ==
9 9  
10 +[[Matrix>>https://matrix.org/]] is a chat system very similar to E-Mail, but instantaneous and secure.
10 10  
11 -Matrix is a chat system very similar to E-Mail. People have their account on one server but can write messages to anyone on other servers. For example @someprofessor:tum.de can communicate with @someresearcher:lmu.de.
12 +* You need to register an account at a provider (e.g. tum.de, or lmu.de)
13 +* Whatever your provider is, you can talk to people using other providers
14 +** (((
15 +For example {{code language="none"}}@someprofessor:tum.de{{/code}} can communicate with {{code language="none"}}@someresearcher:lmu.de{{/code}}!
16 +)))
17 +* (((
18 +In the same way you can use Outlook or Thunderbird with the same email account, you can use different Matrix apps for the same Matrix account!
19 +Several apps exist, but we're going to go with "[[Element>>https://element.io/]]" for the sake of simplicity, as it's among the most fully-featured Matrix apps on the market.
20 +)))
12 12  
13 -You can create end-to-end encrypted personal or group chats that are not stored and dependent on a central authority like most other tools (ms teams, whatsapp, zoom, ...) . All your messages are synced between all your devices - web clients, desktop clients, smartphone apps. For additional security, encryption keys of contacts can be verified and then stored as trusted.
22 +So people have their **account on one server** but can write messages **to anyone on other servers**.
23 +
14 14  
25 +**Personal or group chats** are[[ end-to-end encrypted>>https://en.wikipedia.org/wiki/End-to-end_encryption]] and **not dependent on a central authority** like most other tools (MS Teams, WhatsApp, Zoom, ...) - anyone can host a Matrix server.
26 +All your messages are **synced** between all your devices - web clients, desktop clients, smartphone apps.
27 +For additional security, encryption keys of contacts can be verified and then stored as trusted.
15 15  
29 +== Home Server ==
16 16  
31 +Messages are stored and synced between home servers.
17 17  
33 +A user typically has **one account** on one homeserver. You can use any homeserver of your choice - however [[ITO>>doc:CIT.ITO.WebHome]] offers two homeservers:
18 18  
19 -And[[ Here>>url:https://element.io/get-started]] you can find installation for IOS, Android, Mac, Linux and Windows.
35 +* **matrix.cit.tum.de** for CIT accounts: @username:cit.tum.de
36 +* **matrix.tum.de** for TUM accounts: @username:tum.de
20 20  
38 +You only need to use one account and can communicate with any other homeserver of the world.
21 21  
22 -[[image:matrixdownload.png||height="284" width="575"]]
40 +If you don't have a CIT or TUM account, you can use a public homeserver instead:
23 23  
42 +* matrix.org: [[https:~~/~~/app.element.io/#/register>>https://app.element.io/#/register]]
43 +* or any other homeserver [[https:~~/~~/joinmatrix.org/servers/>>https://joinmatrix.org/servers/]]
44 +* or, [[host your own homeserver>>https://matrix-org.github.io/synapse/latest/]] 🤩
24 24  
25 -== Log in ==
46 +To use your home server, you have to **use a client** that communicates with your homeserver.
26 26  
48 +== Clients ==
27 27  
28 -=== Log in to the web interface with TUM login data ===
50 +[[Element>>https://element.io/]] is our client of choice.
29 29  
52 +* [[Desktop Client>>https://element.io/download]] (easily provided in [[your Linux distribution of choice>>https://repology.org/project/element-desktop]])
53 +* In your web browser:
54 +** [[matrix.cit.tum.de>>https://matrix.cit.tum.de]]
55 +** [[matrix.tum.de>>https://matrix.tum.de]]
56 +* [[On your smartphone>>https://element.io/download]]
30 30  
31 -(% class="box" %)
32 -(((
33 -Webpage: https:~/~/matrix.tum.de
34 -)))
58 +(% class="wikigeneratedid" %)
59 +Make sure the **home server is set correctly** to your provider!
35 35  
36 -(% class="box" %)
61 +(% class="box infomessage" %)
37 37  (((
38 -ID: LRZ-ID (without @mytum.de or @tum.de)
63 +**CIT: Homeserver**: matrix.cit.tum.de **Username**: CIT-ID (without @cit.tum.de)  **Password**: CIT Password
39 39  )))
40 40  
41 -(% class="box" %)
66 +(% class="box infomessage" %)
42 42  (((
43 -Password: LRZ/TUM Password
68 +**TUM: Homeserver**: matrix.tum.de **Username**: LRZ-ID (without @mytum.de or @tum.de)  **Password**: LRZ/TUM Password
44 44  )))
45 45  
46 -[[image:tumaccountlogineng1.png||height="329" width="582"]]
47 47  
72 +== Using Element for Matrix ==
48 48  
49 -[[image:tumaccountlogineng2n.png||height="362" width="589"]]
50 50  
51 -=== Log in to the web interface with cit.tum login data ===
75 +Follow [[the official guide>>https://matrix.org/docs/chat_basics/]] how to chat with Element 😎
52 52  
53 -(% class="box" %)
54 -(((
55 -Webpage: https:~/~/matrix.cit.tum.de
56 -)))
77 +You can create personal chats, group chats, and spaces for bundling multiple chatrooms to communicate with any other Matrix user in the world.
57 57  
58 -(% class="box" %)
59 -(((
60 -ID: ITO-ID (without @cit.tum.de)
61 -)))
62 62  
63 -(% class="box" %)
64 -(((
65 -Password: cit.tum Password
66 -)))
80 +== Invitation of TUM Users ==
67 67  
82 +When inviting TUM or CIT users to a chat, just enter the following Matrix IDs:
68 68  
69 -[[image:Screenshot 2023-08-23 at 18.16.21.png||height="474" width="609"]]
84 +**For CIT Accounts**:
70 70  
71 -
72 -[[image:rbgaccountlogineng2.png||height="377" width="608"]]
73 -
74 -
75 -== Create new chat room ==
76 -
77 -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.
78 -
79 -[[image:addroom1.png||height="311" width="622"]]
80 -
81 -
82 -The chat room **TestRoom** is private, so it is not visible to others and participants can only join the room by invitation.
83 -
84 -[[image:addroom3.png||height="738" width="617"]]
85 -
86 -
87 -== Invite into the chat ==
88 -
89 -There are two types of chat, personal or group chat. You can create either personal or group chats.
90 -
91 -For group chats, you can click the button **Invite to this room** to invite people to that chat. You can also privatly chat with other people in Matrix. If you want to chat with a member privatly, click on the **+-Button** beside **People** in the program or on the web interface.
92 -
93 -
94 -**Requirement**: The member which is been invited has registered once on the Matrix Server.
95 -
96 -**Note**: If you have only released the room for the cit.tum or TUM user, only people who are registered on the cit.tum or tum server can access this room.
97 -
98 -
99 -[[image:addroom4.png||height="636" width="616"]]
100 -
101 -[[image:startchat1.png||height="202" width="633"]]
102 -
103 -Enter followings in the opened window:
104 -
105 -**For ITO Accounts**: e.g. @musterma:cit.tum.de
106 -
107 107  (% class="box infomessage" %)
108 108  (((
109 -@ITO-ID:cit.tum.de
88 +@CIT-ID:cit.tum.de     (e.g. @cooluser:tum.de)
110 110  )))
111 111  
112 -**For TUM Accounts: **e.g. @lr89rbg:tum.de
91 +**For TUM Accounts:**
113 113  
114 114  (% class="box infomessage" %)
115 115  (((
116 - @lrz-ID:tum.de
95 + @LRZ-ID:tum.de     (e.g. @ga42lol:tum.de)
117 117  )))
118 118  
119 119  **For other Accounts: ** e.g. @musterma:matrix.org
... ... @@ -120,9 +120,18 @@
120 120  
121 121  (% class="box infomessage" %)
122 122  (((
123 - name, email address, username  @username:domain
102 + @username:domain
124 124  )))
125 125  
126 -and send the invitation to the e-mail address of the person to be invited. The invitation will appear in the matrix chat window and must be accepted.
105 +The invitation will then appear in the Matrix client of the just-added user and must be accepted.
127 127  
128 128  
108 +== Secure Backup ==
109 +
110 +Since end-to-end encryption stores decryption keys only on clients (the "end"), logging out of the last client would mean loosing all messages.
111 +
112 +Matrix allows to create a encrypted backup of the decryption keys on your homeserver - with a separate passphrase.
113 +
114 +Matrix will ask you to set up your secure backup, and will request the password for the backup keys if needed.
115 +
116 +More information is in the [[official documentation about private chats>>https://matrix.org/docs/chat_basics/private-group-chat/]] 🤓