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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		-There are two Matrix-Servers:
8		- 1 matrix.tum.de (LRZ-ID)
9		- 1 matrix.cit.tum.de (ITO-ID)
	7	+[[image:https://element.io/images/Ui-grad-homepage.png||alt="https://element.io/images/Ui-grad-homepage.png" height="677" width="942"]]
10	10
11		-You can log in any of them with the appropriate ID and password.
12		-The Matrix Server is available as web but also as client. It can be found as web interface under the following links:
13	13
14		-[[matrix.cit.tum.de (ITO- ID)>>url:https://matrix.cit.tum.de/#/welcome]]
	10	+[[Matrix>>https://matrix.org/]] is a chat system very similar to E-Mail, but instantaneous and secure.
15	15
16		-[[matrix.tum.de (LRZ-TUM-ID)>>url:https://matrix.tum.de/#/welcome]]
17		-
18		-
19		-[[ Here>>url:https://element.io/get-started]] you can find installation for IOS, Android, Mac, Linux and Windows.
20		-
21		-
22		-[[image:matrixdownload.png||height="284" width="575"]]
23		-
24		-
25		-== Log in ==
26		-
27		-
28		-=== Log in to the web interface with TUM login data ===
29		-
30		-
31		-(% class="box" %)
32		-(((
33		-webpage: https:~/~/matrix.tum.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}}!
34	34	)))
35		-
36		-(% class="box" %)
37		-(((
38		-ID: LRZ-ID (without @mytum.de or @tum.de)
	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.
39	39	)))
40	40
41		-(% class="box" %)
42		-(((
43		-Password: LRZ/TUM Password
44		-)))
	22	+So People have their **account on one server** but can write messages **to anyone on other servers**.
	23	+
45	45
46		-[[image:tumaccountlogineng1.png||height="329" width="582"]]
	25	+You can create[[ end-to-end encrypted>>https://en.wikipedia.org/wiki/End-to-end_encryption]] **personal or group chats** that are not stored and **not dependent on a central authority** like most other tools (MS Teams, WhatsApp, Zoom, ...).
	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.
47	47
	29	+== Home Server ==
48	48
49		-[[image:tumaccountlogineng2n.png||height="362" width="589"]]
	31	+Messages are stored and synced between home servers.
50	50
51		-=== Log in to the web interface with cit.tum login data ===
	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:
52	52
53		-(% class="box" %)
54		-(((
55		-webpage: https:~/~/matrix.cit.tum.de
56		-)))
	35	+* **matrix.cit.tum.de** for CIT accounts: @username:cit.tum.de
	36	+* **matrix.tum.de** for TUM accounts: @username:tum.de
57	57
58		-(% class="box" %)
59		-(((
60		-ID: ITO-ID (without @cit.tum.de)
61		-)))
	38	+You only need to use one account and can communicate with any other homeserver of the world.
62	62
63		-(% class="box" %)
64		-(((
65		-Password: cit.tum Password
66		-)))
	40	+If you don't have a CIT or TUM account, you can use a public homeserver instead:
67	67
68		-[[image:rbgaccountlogineng1.png||height="369" width="601"]]
	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 :)
69	69
	46	+To use your home server, you have to **use a client** that communicates with your homeserver.
70	70
71		-[[image:rbgaccountlogineng2.png||height="377" width="608"]]
	48	+== Clients ==
72	72
	50	+[[Element>>https://element.io/]] is our client of choice.
73	73
74		-== Create new chat room ==
	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]]
75	75
76		-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.
	58	+(% class="wikigeneratedid" %)
	59	+Make sure the **home server is set correctly** to your provider!
77	77
78		-[[image:addroom1.png||height="311" width="622"]]
79		-
80		-
81		-The chat room **TestRoom** is private, so it is not visible to others and participants can only join the room by invitation.
82		-
83		-[[image:addroom3.png||height="738" width="617"]]
84		-
85		-
86		-== Invite into the chat room ==
87		-
88		-**Requirement**: The member which is been invited has registered once on the Matrix Server.
89		-
90		-**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.
91		-
92		-If you want to invite new members to the room, click the button **Invite to this room**.
93		-
94		-[[image:addroom4.png||height="636" width="616"]]
95		-
96		-
97		-Enter followings in the opened window:
98		-
99		-**For ITO Accounts**: e.g. @musterma:cit.tum.de
100		-
101	101	(% class="box infomessage" %)
102	102	(((
103		-@ITO-ID:cit.tum.de
	63	+**CIT: Homeserver**: matrix.cit.tum.de **Username**: CIT-ID (without @cit.tum.de)  **Password**: CIT Password
104	104	)))
105	105
106		-**For TUM Accounts: **e.g. @lr89rbg:tum.de
107		-
108	108	(% class="box infomessage" %)
109	109	(((
110		- @lrz-ID:tum.de
	68	+**TUM: Homeserver**: matrix.tum.de **Username**: LRZ-ID (without @mytum.de or @tum.de)  **Password**: LRZ/TUM Password
111	111	)))
112	112
113		-**For other Accounts: ** e.g. @musterma:matrix.org
114	114
115		-(% class="box infomessage" %)
116		-(((
117		- name, email address, username  @username:domain
118		-)))
	72	+== Using Element for Matrix ==
119	119
120		-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.
121	121
	75	+Follow [[the official guide>>https://matrix.org/docs/chat_basics/]] how to chat with Element 😎
122	122
123		-[[image:invitetotestroom.png||height="593" width="622"]]
	77	+You can create personal chats, group chats, and spaces for bundling multiple chatrooms to communicate with any other Matrix user in the world.
124	124
125	125
126		-=== invite to the private chat ===
	80	+== Invitation of TUM Users ==
127	127
	82	+When inviting TUM or CIT users to a chat, just enter the following Matrix IDs:
128	128
129		-**Requirement**: The member which is been invited has registered once on the Matrix Server.
	84	+**For CIT Accounts**:
130	130
131		-
132		-You can also privatly chat with other 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.
133		-
134		-[[image:startchat1.png||height="202" width="633"]]
135		-
136		-
137		-Enter followings in the opened window:
138		-
139		-**For ITO Accounts**: e.g. @musterma:cit.tum.de
140		-
141	141	(% class="box infomessage" %)
142	142	(((
143		-@ITO-ID:cit.tum.de
	88	+@CIT-ID:cit.tum.de     (e.g. @cooluser:tum.de)
144	144	)))
145	145
146		-**For TUM Accounts: **e.g. @lr89rbg:tum.de
	91	+**For TUM Accounts:**
147	147
148	148	(% class="box infomessage" %)
149	149	(((
150		- @lrz-ID:tum.de
	95	+ @LRZ-ID:tum.de     (e.g. @ga42lol:tum.de)
151	151	)))
152	152
153	153	**For other Accounts: ** e.g. @musterma:matrix.org
...	...	@@ -154,15 +154,18 @@
154	154
155	155	(% class="box infomessage" %)
156	156	(((
157		- name, email address, username  @username:homeserver
	102	+ @username:domain
158	158	)))
159	159
160		-and send the invitation to the e-mail address of the person to be invited. [[image:invitepeople1.png||height="298" width="687"]]
	105	+The invitation will then appear in the Matrix client of the just-added user and must be accepted.
161	161
162	162
163		-The invitation will appear in the element chat window and must be accepted.
	108	+== Secure Backup ==
164	164
165		-[[image:invitepeople2.png||height="263" width="686"]]
	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.
166	166
	112	+Matrix allows to create a encrypted backup of the decryption keys on your homeserver - with a separate passphrase.
167	167
168		-----
	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/]] 🤓