[debian-edu-commits] [Debian Wiki] Update of "DebianEdu/Documentation/Buster/HowTo/Users" by HolgerLevsen

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The "DebianEdu/Documentation/Buster/HowTo/Users" page has been changed by HolgerLevsen:
https://wiki.debian.org/DebianEdu/Documentation/Buster/HowTo/Users

Comment:
copied+derived from https://wiki.debian.org/DebianEdu/Documentation/Stretch

New page:
= HowTos for users =
<<TableOfContents(2)>>

== Changing passwords ==

Every user should change her or his password by using GOsa². To do so, just use a browser and go to {{{https://www/gosa/}}}.

Using GOsa² to change the password ensures that passwords for Kerberos (krbPrincipalKey), LDAP (userPassword) and Samba (sambaNTPassword and sambaLMPassword) are the same.

Changing passwords using PAM is working also at the GDM login prompt, but this will only update the Kerberos password, and not the Samba and GOsa² (LDAP) password. So after you changed your password at the login prompt, you really should also change it using GOsa².

== Java ==

=== Running standalone Java applications ===

Standalone Java applications are supported out of the box by the OpenJDK Java runtime. 

=== Running Java applications in the web browser ===

Running Java applets is supported in the Firefox ESR browser by the OpenJDK Java runtime. Please note that this support will end early 2018, FIXME which is now.

== Using email ==

All users can send and receive mails within the internal network; self-signed certificates are provided to allow TLS secured connections. To allow mail outside the internal network, the administrator needs to configure the mailserver {{{exim4}}} to suit the local situation, starting with {{{dpkg-reconfigure exim4-config}}}.

Every user who wants to use Thunderbird needs to configure it as follows. For a user with username jdoe the internal email address is jdoe at postoffice.intern.

=== Thunderbird ===
 * Start Thunderbird
 * Click 'Skip this and use my existing email'
 * Enter your email address
 * Uncheck 'Remember password'
 * Don't enter your password as Kerberos single sign on will be used
 * Click 'Continue'
 * For both IMAP and SMTP the settings should be 'STARTTLS' and 'Kerberos/GSSAPI'; adjust if not detected automatically
 * Click 'Done'
 * First time accessing the inbox click 'Confirm Security Exception' to accept the certificate; same applies if sending mail for the first time.

=== Obtaining a Kerberos ticket to read email on diskless workstations ===

If working on a diskless workstation, you don't have a Kerberos TGT by default. To get one, click the credentials button in the system tray. Enter your password and the ticket will be granted.

== Volume control ==

On thin clients, {{{pavucontrol}}} or {{{alsamixer}}} (but not {{{kmix}}}) can be used to change audio volume.

On other machines (workstations, LTSP servers, and diskless workstations), {{{kmix}}} or {{{alsamixer}}} can be used.
 
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