Users of the VM

Each editor is a user on the VM. The username is the same as the username of the UniKim account.

Users must access the VM by SSH, WinSCP, etc. using their UniKim account’s username and password.

Example:

ssh meckhart@capitularia.uni-koeln.de

Users and Groups

User capitularia

The admin user for this project. This user must have read/write access to all files.

The application server is installed under this user’s home directory. The XSLT transformations are also there. This user

  • owns the Apache DocumentRoot directory for the Capitularia web site,

  • runs the cron jobs to transform TEI files into HTML,

  • runs scripts on demand to bulk-edit TEI files (also in editors’ private directories)

Group capitularia

The group of the project admin user.

User <editor>

Personal user account for each editor.

Group capitularia-editors

All editors are members of this group.

User www-data

The web server. Must have read access to cap/publ/.

Directory cap/publ/

All editors have read/write access through group capitularia-editors.

Directory cap/intern/

All editors have read/write access through group capitularia-editors.

Directory cap/intern/InArbeit/<editor>

Semi-private directories owned by the the editor. All editors have read/write access to all these directories through group capitularia-editors.

Groups for user:

User

Groups

capitularia

capitularia, capitularia-editors

<editor>

<editor>, capitularia-editors

ACL permissions for users:

User

cap/publ

cap/intern

cap/intern/InArbeit/<editor>

capitularia

rwx

rwx

rwx

www-data

r-x

ACL permissions for groups:

Group

cap/publ

cap/intern

cap/intern/InArbeit/<editor>

capitularia

rwx

rwx

rwx

capitularia-editors

rwx

rwx

rwx

To see ACLs for the current directory, say:

getfacl .

An example of how to set ACLs:

setfacl -R -m u:www-data:rX,g:capitularia-editors:rwX,o::- <dir>

Adding a New User

To add a new user to the VM (needs root):

sudo ~root/add_capitularia_user.sh <username>

Each user should also have a semi-personal subdirectory in: cap/intern/InArbeit/. They can create that themselves.

Security

The users are authenticated by the RRZK Kerberos system through PAM and the pam_krb5 module. For particulars see the voice: “Zugang zu Gast-VM (debian) mit UniKim-Account” in the internal CCeH wiki.