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1		-XWiki.jelten
	1	+XWiki.kahraman

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1		-{{toc/}}
	1	+= Establishing a Matrix Chat =
2	2
	3	+%TOC%
3	3
4		-== What is Matrix? ==
	5	+There are two Matrix-Servers:
	6	+ 1 matrix.tum.de (LRZ-ID)
	7	+ 1 matrix.cit.tum.de (ITO-ID)
5	5
	9	+You can log in any of them with the appropriate ID and password.
	10	+The Matrix Server is available as web but also as client. It can be found as web interface under the following links:
6	6
7		-[[image:https://element.io/images/Ui-grad-homepage.png||alt="https://element.io/images/Ui-grad-homepage.png" height="677" width="942"]]
	12	+[[matrix.cit.tum.de (ITO- ID)>>url:https://matrix.cit.tum.de/#/welcome]]
8	8
	14	+[[matrix.tum.de (LRZ-TUM-ID)>>url:https://matrix.tum.de/#/welcome]]
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		-)))
	17	+[[ Here>>url:https://element.io/get-started]] you can find installation for IOS, Android, Mac, Linux and Windows.
21	21
22		-So People have their **account on one server** but can write messages **to anyone on other servers**.
23		-
	19	+[[image:elementdriver.png||width="1000"]]
24	24
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.
28	28
29		-== Home Server ==
	22	+== Log in ==
30	30
31		-Messages are stored and synced between home servers.
32	32
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:
	25	+=== Log in to the web interface with TUM login data ===
34	34
35		-* **matrix.cit.tum.de** for CIT accounts: @username:cit.tum.de
36		-* **matrix.tum.de** for TUM accounts: @username:tum.de
37	37
38		-You only need to use one account and can communicate with any other homeserver of the world.
39	39
40		-If you don't have a CIT or TUM account, you can use a public homeserver instead:
	29	+{{{webpage: https://matrix.tum.de
41	41
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 :)
	31	+ID: LRZ-ID (without @mytum.de or @tum.de)
45	45
46		-To use your home server, you have to **use a client** that communicates with your homeserver.
	33	+Password: LRZ/TUM Password
47	47
48		-== Clients ==
49	49
50		-[[Element>>https://element.io/]] is our client of choice.
	36	+}}}
51	51
52		-* [[Desktop Client>>https://element.io/download]] (easily provided in [[your Linux distribution of choice>>https://repology.org/project/element-desktop]])
53		-* as web client:
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]]
57	57
58		-(% class="wikigeneratedid" %)
59		-Make sure the **home server is set correctly** to your provider!
60	60
61		-(% class="box infomessage" %)
62		-(((
63		-**CIT: Homeserver**: matrix.cit.tum.de **Username**: CIT-ID (without @cit.tum.de)  **Password**: CIT Password
64		-)))
	40	+[[image:matrixrbgTUM.png||width="1000"]]
65	65
66		-(% class="box infomessage" %)
67		-(((
68		-**TUM: Homeserver**: matrix.tum.de **Username**: LRZ-ID (without @mytum.de or @tum.de)  **Password**: LRZ/TUM Password
69		-)))
70	70
71	71
72		-== Using Element for Matrix ==
	44	+[[image:matrixanmeldentum.png]]
73	73
74	74
75		-Follow [[the official guide>>https://matrix.org/docs/chat_basics/]] how to chat with Element 😎
76	76
77		-You can create personal chats, group chats, and spaces for bundling multiple chatrooms to communicate with any other Matrix user in the world.
	48	+=== Log in to the web interface with cit.tum login data ===
78	78
	50	+{{{webpage: https://matrix.cit.tum.de
79	79
80		-== Invitation of TUM Users ==
	52	+ID: ITO(cit.tum)-ID (without @cit.tum.de)
81	81
82		-When inviting TUM or CIT users to a chat, just enter the following Matrix IDs:
	54	+Password: cit.tum Password
83	83
84		-**For CIT Accounts**:
	56	+}}}
85	85
86		-(% class="box infomessage" %)
87		-(((
88		-@CIT-ID:cit.tum.de     (e.g. @cooluser:tum.de)
89		-)))
90	90
	59	+[[image:elemtrbgin.png||width="1000"]]
	60	+
	61	+
	62	+[[image:matrixanmeldenIntum.png||width="1000"]]
	63	+
	64	+
	65	+----
	66	+
	67	+== Create new chat room ==
	68	+
	69	+
	70	+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.
	71	+
	72	+
	73	+todo- screenshot
	74	+
	75	+
	76	+
	77	+[[image:createroom2.png||width="1000"]]
	78	+
	79	+
	80	+The chat room **Test-RBG** is private, so it is not visible to others and participants can only join the room by invitation.
	81	+
	82	+[[image:createroomtestrbg.png||width="1000"]]
	83	+
	84	+
	85	+== Invite into the chat room ==
	86	+
	87	+
	88	+**Requirement**: The member which is been invited has registered once on the same TUM/ITO Matrix Server
	89	+
	90	+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.
	91	+
	92	+[[image:invitetothisroom1.png||width="1000"]]
	93	+
	94	+
	95	+Enter followings in the opened window:
	96	+
	97	+**For in.tum or ma.tum Accounts**: e.g. @musterma:cit.tum.de
	98	+
	99	+{{{@cit.tum-ID:cit.tum.de
	100	+
	101	+}}}
	102	+
91	91	**For TUM Accounts:**
92	92
93		-(% class="box infomessage" %)
94		-(((
95		- @LRZ-ID:tum.de     (e.g. @ga42lol:tum.de)
96		-)))
	105	+{{{ @lrz-Kennung:tum.de
97	97
98		-**For other Accounts: ** e.g. @musterma:matrix.org
	107	+}}}
99	99
100		-(% class="box infomessage" %)
101		-(((
102		- @username:domain
103		-)))
104	104
105		-The invitation will then appear in the Matrix client of the just-added user and must be accepted.
	110	+and send the invitation to the e-mail address of the person to be invited, that means to the ITO(cit.tum) or TUM email address.
106	106
	112	+[[image:invitetothisroom.png||width="1000"]]
107	107
108		-== Secure Backup ==
109	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.
	115	+The invitation will appear in the matrix chat window and must be accepted.
111	111
112		-Matrix allows to create a encrypted backup of the decryption keys on your homeserver - with a separate passphrase.
	117	+[[image:maxmustereinladungaccept.png||width="1000"]]
113	113
114		-Matrix will ask you to set up your secure backup, and will request the password for the backup keys if needed.
115	115
116		-More information is in the [[official documentation about private chats>>https://matrix.org/docs/chat_basics/private-group-chat/]] 🤓
	120	+=== invite to the private chat ===
	121	+
	122	+
	123	+**Requirement**: The member which is been invited has registered once on the same TUM/ITO Matrix Server
	124	+
	125	+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.
	126	+
	127	+
	128	+
	129	+[[image:startchat1.png||width="1000"]]
	130	+
	131	+
	132	+Enter followings in the opened window:
	133	+
	134	+**For ITO Accounts**: e.g. @musterma:cit.tum.de
	135	+
	136	+{{{@cit.tum-ID:cit.tum.de
	137	+
	138	+}}}
	139	+
	140	+**For TUM Accounts: **e.g. @lr89rbg:tum.de
	141	+
	142	+{{{ @lrz-Kennung:tum.de
	143	+
	144	+}}}
	145	+
	146	+
	147	+and send the invitation to the e-mail address of the person to be invited, that means to the ITO(cit.tum) or TUM email address.
	148	+
	149	+[[image:invitepeople1.png||width="1000"]]
	150	+
	151	+
	152	+[[image:invitepeople2.png||width="1000"]]
	153	+
	154	+
	155	+The invitation will appear in the element chat window and must be accepted.
	156	+
	157	+[[image:invitepeople.png||width="1000"]]
	158	+
	159	+
	160	+----