In Administration > Configuration there are a number of configuration values.

key default meaning availabe since OpenMeetings version
crypt.class.name org.apache.openmeetings.util.crypt.SCryptImplementation This Class is used for Authentification-Crypting. Be carefull what you do here! If you change it while running previous Pass of users will not be workign anymore! for more Information see https://openmeetings.apache.org/CustomCryptMechanism.html 1.9.x
allow.frontend.register true Is USER register available on login screen 1.8.x
allow.soap.register true Is user register available via SOAP/REST 3.0.x
allow.oauth.register true Is user register available via OAuth 3.0.x
default.group.id 1 1.8.x
mail.smtp.server localhost this is the smtp server to send messages 1.9.x
mail.smtp.port 25 this is the smtp server port normally 25 1.9.x
mail.smtp.system.email noreply@openmeetings.apache.org all send e-mails by the system will have this address 1.9.x
mail.smtp.user System auth email username 1.9.x
mail.smtp.pass System auth email password 1.9.x
mail.smtp.starttls.enable false Enable TLS 1.9.x
mail.smtp.connection.timeout 30000 Socket connection timeout value in milliseconds. Default is 30 seconds (30000). 1.9.x
mail.smtp.timeout 30000 Socket I/O timeout value in milliseconds. Default is 30 seconds (30000). 1.9.x
application.name OpenMeetings Name of the Browser Title window 3.0.x
default.lang.id 1 Default System Language ID see languages.xml 1.8.x
document.dpi 150 dpi for conversion of PDF to images (should be an integer between 50 and 600 with a default value of 150 dpi) 2.0.x
document.quality 90 compression quality for conversion of PDF to images (should be an integer between 1 and 100, with a default value of 90) 2.0.x
path.imagemagick Path to ImageMagick tools 2.0.x
path.sox Path To SoX-Tools 2.0.x
path.ffmpeg Path To FFMPEG 2.0.x
path.office The path to OpenOffice/LibreOffice (optional) please set this to the real path in case jodconverter is unable to find OpenOffice/LibreOffice installation automatically 2.0.x
dashboard.rss.feed1 https://mail-archives.apache.org/mod_mbox/openmeetings-user/?format=atom Feed URL 1 1.9.x
dashboard.rss.feed2 https://mail-archives.apache.org/mod_mbox/openmeetings-dev/?format=atom Feed URL 2 1.9.x
send.email.at.register false User get a EMail with their Account data. 2.0.x
send.email.with.verfication false User must activate their account by clicking on the activation-link in the registering Email It makes no sense to make this(send.email.with.verfication) 'true' while send.email.at.register is 'false' cause you need to send a EMail. 2.0.x
application.base.url http://localhost:5080/openmeetings/ Base URL your OPenmeetings installation will be accessible at. 3.0.2
sip.enable false Enable to enable the red5SIP integration 1.9.x
sip.room.prefix 400 Numerical prefix for OM rooms created inside the SIP 1.9.x
sip.exten.context rooms Enable to enable the red5SIP integration 1.9.x
default.timezone Europe/Berlin This is the default timezone if nothing is specified 1.9.x
screensharing.default.quality 1 Default selection in ScreenSharing Quality: 0 - bigger frame rate, no resize 1 - no resize 2 - size == 1/2 of selected area 3 - size == 3/8 of selected area 3.0.3
screensharing.default.fps 10 Default selection in ScreenSharing FPS 3.0.3
screensharing.fps.show true Is screensharing FPS should be displayed or not 3.0.3
screensharing.allow.remote true Is remote control will be enabled while screensharing. Allowing remote control will be not possible in case it is set to 'false' 3.0.4
dashboard.show.myrooms true Show 'My Rooms' widget on dashboard 1.9.x
dashboard.show.chat true Show 'Global Chat' outside the room 1.9.x
dashboard.show.rssfeed false Show RSS widget on dashboard 1.9.x
max.upload.size 104857600 Maximum size of upload file (bytes) 1.8.x
number.minutes.reminder.send 15 The number of minutes before reminder emails are send. Set to 0 to disable reminder emails 1.9.x
user.login.minimum.length 4 Number of chars needed in a user login 1.9.x
user.pass.minimum.length 8 Number of chars needed in a user password 1.9.x
calendar.conference.rooms.default.size 50 Default number of participants conference room created via calendar 1.9.x
video.arrange.keycode Shift+F8 A hot key code for arrange video windows functionality 2.0.x
mute.others.keycode Shift+F12 A hot key code for the 'mute others' functionality 2.0.x
mute.keycode Shift+F7 A hot key code for the 'mute/unmute audio' functionality 2.0.x
default.ldap.id 0 Ldap domain selected by default in the login screen 1.9.x
inviter.email.as.replyto true Set inviter's email address as ReplyTo in email invitations 2.0.x
default.landing.zone user/dashboard Area to be shown to the user after login. Possible values are: user/dashboard, user/calendar, user/record, rooms/my, rooms/group, rooms/public, admin/user, admin/connection, admin/group, admin/room, admin/config, admin/lang, admin/ldap, admin/backup, admin/server, admin/oauth2 2.1.x
oauth2.ignore.bad.ssl false Set "yes" or "no" to enable/disable ssl certifications checking for OAuth2 WARNING: it is not secure 3.0.x
redirect.url.for.external.users Users entered the room via invitationHash or secureHash will be redirected to this URL on connection lost 3.0.x
google.analytics.code Code for Google Analytics 3.1.0
external.process.ttl 20 Time to live in minutes for external processes such as conversion via ffmpeg (default 20 minutes) 3.3.0
personal.rooms.enabled true Users are allowed to create personal rooms 3.3.2
reminder.message Reminder message to notify about upcoming appointment, generated message will be used if not set 2.0.x
mp4.audio.rate 22050 Audio sampling rate (in Hz) for MP4 video 4.0.1
mp4.audio.bitrate 32k Audio bitrate for MP4 video 4.0.1
rest.allow.origin List of addresses browser Ajax REST requests are allowed from 4.0.2
user.fname.minimum.length 4 Number of chars needed in a user first name 4.0.4
user.lname.minimum.length 4 Number of chars needed in a user last name 4.0.4
chat.send.on.enter false Controls if chat message will be set on Enter (default: send on Ctrl+Enter) 4.0.5
mp4.video.preset medium Preset (encoder optimization settings) to be used while performing mp4 conversion.Valid values are: ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow 4.0.5
cam.fps 30 Camera FPS, should be positive number in range (0, 60] 5.0.0
mic.rate 22 The rate at which the microphone should capture sound, in kHz. The default value is 22 kHz. 5.0.0
mic.echo.cancellation true Whether or not echo cancellation is preferred and/or required. 5.0.0
mic.noise.suppression true Whether noise suppression is preferred and/or required. 5.0.0
display.name.editable false Is user will be able to edit his/her display name (default false). 4.0.7
start.quickpoll.keycode Ctrl+Alt+KeyQ A hot key code to start quick poll 4.0.10
auto.open.sharing false Whether shared screen should be auto-opened. 5.0.0
video.arrange.resize.keycode Ctrl+Shift+KeyA A hot key code to arrange video windows bottom-to-top with resize to 120x90 5.0.0
header.csp.font https://fonts.gstatic.com Value for 'font-src' directive of 'Content-Security-Policy' header (default: https://fonts.gstatic.com), more info: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy 5.0.0
header.csp.frame 'self' Value for 'frame-src' directive of 'Content-Security-Policy' header (default: SELF), more info: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy 5.0.0
header.csp.image data: Value for 'image-src' directive of 'Content-Security-Policy' header (default: data:), more info: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy 5.0.0
header.csp.media 'self' Value for 'media-src' directive of 'Content-Security-Policy' header (default: SELF), more info: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy 5.0.0
header.csp.script 'strict-dynamic' Value for 'script-src' directive of 'Content-Security-Policy' header (default: STRICT_DYNAMIC), more info: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy 5.0.0
header.csp.style https://fonts.googleapis.com/css Value for 'style-src' directive of 'Content-Security-Policy' header (default: https://fonts.googleapis.com/css), more info: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy 5.0.0

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