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1		-XWiki.schwalb
	1	+XWiki.kahraman

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1	1	{{toc/}}
2	2
3	3
4		-= What is Matrix? =
	4	+= Establishing a Matrix Chat =
5	5
6	6
7		-[[image:matrix-element-uidemo.png||alt="Matrix user interface demo" height="641" width="892"]]
8	8
	8	+== What is matrix? ==
9	9
10		-[[Matrix>>https://matrix.org/]] is a chat system very similar to E-Mail, but instantaneous and secure.
11	11
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		-)))
	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.
21	21
22		-So people have their **account on one server** but can write messages **to anyone on other servers**.
23		-
	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.
24	24
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.
28	28
29		-== Home Server ==
30	30
31		-Messages are stored and synced between home servers.
	17	+Download and sign in to the desktop version of Matrix chat
32	32
33		-A user typically has **one account** on one homeserver.
34		-You can use any homeserver of your choice - however **for TUM**, [[ITO>>doc:CIT.ITO.WebHome]] offers two homeservers:
35	35
36		-* **matrix.cit.tum.de** for CIT accounts: @username:cit.tum.de
37		-* **matrix.tum.de** for TUM accounts: @username:tum.de
38	38
39		-You only need to use one account and can communicate with any other homeserver of the world.
	21	+[[ Here>>url:https://element.io/get-started]] you can find installation for IOS, Android, Mac, Linux and Windows.
40	40
41		-If you don't have a CIT or TUM account, you can use a **public** homeserver instead:
42	42
43		-* matrix.org: [[https:~~/~~/app.element.io/#/register>>https://app.element.io/#/register]]
44		-* or any other homeserver [[https:~~/~~/joinmatrix.org/servers/>>https://joinmatrix.org/servers/]]
45		-* or, [[host your own homeserver>>https://matrix-org.github.io/synapse/latest/]] 🤩
46	46
47		-To use your home server, you have to **use a client** that communicates with your homeserver.
	25	+== ==
48	48
49		-== Clients ==
	27	+You can sign in to the desktop version or web interface.
50	50
51		-[[Element>>https://element.io/]] is our client of choice.
	29	+=== Sign in to the desktop version ===
52	52
53		-* [[Desktop Client>>https://element.io/download]] (easily provided in [[your Linux distribution of choice>>https://repology.org/project/element-desktop]])
54		-* In your web browser:
55		-** [[matrix.cit.tum.de>>https://matrix.cit.tum.de]]
56		-** [[matrix.tum.de>>https://matrix.tum.de]]
57		-* [[On your smartphone>>https://element.io/download]]
58	58
	32	+[[ Here>>url:https://element.io/get-started]] you can find installation for IOS, Android, Mac, Linux and Windows.
	33	+
	34	+[[image:matrixdownload.png||height="284" width="575"]]
	35	+
	36	+
	37	+
	38	+You can sig in, if you have an account or create an account.
	39	+
	40	+[[image:elementdesktopversionlogineng.png||height="745" width="558"]]
	41	+
	42	+
59	59	(% class="wikigeneratedid" %)
60		-Make sure the **home server is set correctly** to your provider!
	44	+[[image:elementdesktopversionlogineng2.png||height="766" width="573"]]
61	61
	46	+
	47	+(% class="wikigeneratedid" %)
	48	+If you have a CIT or TUM Account, you can sign in wit your login data.
	49	+
	50	+
	51	+
	52	+(% class="wikigeneratedid" %)
	53	+For the sign in with your CIT or TUM account, you need the following homeserver:
	54	+
	55	+
62	62	(% class="box infomessage" %)
63	63	(((
64		-**CIT: Homeserver**: matrix.cit.tum.de **Username**: CIT-ID (without @cit.tum.de)  **Password**: CIT Password
	58	+CIT homeserver: matrix.cit.tum.de
65	65	)))
66	66
67	67	(% class="box infomessage" %)
68	68	(((
69		-**TUM: Homeserver**: matrix.tum.de **Username**: LRZ-ID (without @mytum.de or @tum.de)  **Password**: LRZ/TUM Password
	63	+TUM homeserver: matrix.tum.de
70	70	)))
71	71
72	72
73		-== Using Element for Matrix ==
	67	+(% class="wikigeneratedid" %)
	68	+[[image:elementdesktopversionloginengcit1.png||height="621" width="570"]]
74	74
	70	+(% class="wikigeneratedid" %)
	71	+[[image:desktopelementengcit2.png||height="635" width="580"]]
75	75
76		-Follow [[the official guide>>https://matrix.org/docs/chat_basics/]] how to chat with Element 😎
77	77
78		-You can create **personal chats**, **group chats**, and **spaces** for bundling multiple chatrooms to communicate with any other Matrix user in the world.
	74	+(% class="wikigeneratedid" %)
	75	+And the login data as follow:
79	79
	77	+(% class="wikigeneratedid" %)
	78	+CIT:
80	80
81		-= Invitation of TUM Users =
	80	+(% class="box" %)
	81	+(((
	82	+username: CIT-ID (without @cit.tum.de)
	83	+)))
82	82
83		-When inviting TUM or CIT users to a chat, just enter the following Matrix IDs:
	85	+(% class="box" %)
	86	+(((
	87	+Password: cit.tum Password
	88	+)))
84	84
85		-**For CIT Accounts**:
	90	+(% class="wikigeneratedid" %)
	91	+TUM:
86	86
87		-(% class="box infomessage" %)
	93	+(% class="box" %)
88	88	(((
89		-@CIT-ID:cit.tum.de     (e.g. @cooluser:cit.tum.de)
	95	+username: LRZ-ID (without @mytum.de or @tum.de)
90	90	)))
91	91
92		-**For TUM Accounts:**
	98	+(% class="box" %)
	99	+(((
	100	+Password: LRZ/TUM Password
	101	+)))
93	93
94		-(% class="box infomessage" %)
	103	+(% class="wikigeneratedid" %)
	104	+[[image:desktopelementengcit3.png||height="522" width="582"]]
	105	+
	106	+
	107	+=== Sign in to the web interface ===
	108	+
	109	+If you don't a CIT or TUM account, you can create a matrix account freely on [[https:~~/~~/app.element.io>>https://app.element.io]]
	110	+
	111	+
	112	+==== With TUM login data ====
	113	+
	114	+
	115	+(% class="box" %)
95	95	(((
96		- @LRZ-ID:tum.de     (e.g. @ga42lol:tum.de)
	117	+Webpage: https:~/~/matrix.tum.de
97	97	)))
98	98
99		-**For other Accounts: ** e.g. @musterma:matrix.org
	120	+(% class="box" %)
	121	+(((
	122	+username: LRZ-ID (without @mytum.de or @tum.de)
	123	+)))
100	100
101		-(% class="box infomessage" %)
	125	+(% class="box" %)
102	102	(((
103		- @username:domain
	127	+Password: LRZ/TUM Password
104	104	)))
105	105
106		-The invitation will then appear in the Matrix client of the just-added user and must be accepted.
	130	+[[image:tumaccountlogineng1.png||height="329" width="582"]]
107	107
108		-**Search for User Names**
109	109
110		-To add a user to the user directory, he must become a member of a public chat room on the server, e.g. [[https:~~/~~/matrix.to/#/#announcements:tum.de>>https://matrix.to/#/#announcements:tum.de]] on matrix.tum.de, or share a private chat. Only after that his name will be displayed in the search field for persons.
	133	+[[image:tumaccountlogineng2n.png||height="362" width="589"]]
111	111
112		-= Secure Backup =
	135	+==== With CIT login data ====
113	113
114		-Since end-to-end encryption stores decryption **keys only on clients** (the "end"), logging out of the last client would mean loosing all messages.
	137	+(% class="box" %)
	138	+(((
	139	+Webpage: https:~/~/matrix.cit.tum.de
	140	+)))
115	115
116		-Matrix allows to create a encrypted backup of the decryption keys on your homeserver - with a separate passphrase.
	142	+(% class="box" %)
	143	+(((
	144	+username: CIT-ID (without @cit.tum.de)
	145	+)))
117	117
118		-Matrix will ask you to set up your secure backup, and will request the password for the backup keys if needed.
	147	+(% class="box" %)
	148	+(((
	149	+Password: cit.tum Password
	150	+)))
119	119
120		-More information is in the [[official documentation about private chats>>https://matrix.org/docs/chat_basics/private-group-chat/]] 🤓
	152	+
	153	+[[image:Screenshot 2023-08-23 at 18.16.21.png||height="474" width="609"]]
	154	+
	155	+
	156	+[[image:rbgaccountlogineng2.png||height="377" width="608"]]
	157	+
	158	+== Create new chat room ==
	159	+
	160	+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.
	161	+
	162	+[[image:addroom1new.png||height="312" width="623"]]
	163	+
	164	+
	165	+The chat room **TestRoom** is private, so it is not visible to others and participants can only join the room by invitation.
	166	+
	167	+[[image:addroom3.png||height="738" width="617"]]
	168	+
	169	+
	170	+== Invite into the chat ==
	171	+
	172	+There are two types of chat, private or group chat. You can create either private or group chats and invite other people to the chat room. You can also join to these group chats to participate in existing conversations.
	173	+
	174	+
	175	+**Requirement**: The member which is been invited has registered once on the Matrix Server.
	176	+
	177	+**Note**: If you have only released the room for the CIT or TUM user, only people who are registered on the CIT or TUM server can access this room.
	178	+
	179	+
	180	+Click the button **Invite to this room** to invite people to the group chat.
	181	+
	182	+[[image:addroom4new.png||height="655" width="634"]]
	183	+
	184	+
	185	+If you want to chat with a member privatly, click on the **+-Button** beside **People** in the program or on the web interface.
	186	+
	187	+[[image:startchat1.png||height="202" width="633"]]
	188	+
	189	+Enter followings in the opened window:
	190	+
	191	+**For CIT Accounts**: e.g. @musterma:cit.tum.de
	192	+
	193	+(% class="box infomessage" %)
	194	+(((
	195	+@CIT-ID:cit.tum.de
	196	+)))
	197	+
	198	+**For TUM Accounts: **e.g. @lr89rbg:tum.de
	199	+
	200	+(% class="box infomessage" %)
	201	+(((
	202	+ @LRZ-ID:tum.de
	203	+)))
	204	+
	205	+**For other Accounts: ** e.g. @musterma:matrix.org
	206	+
	207	+(% class="box infomessage" %)
	208	+(((
	209	+ name, email address, username  @username:domain
	210	+)))
	211	+
	212	+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.