Porteus Kiosk Server


Porteus Kiosk Server is built on top of the standard Porteus Kiosk operating system. The main purpose of the system is to allow access and performance management tasks on the kiosk clients even if they are placed behind a NAT, proxy or firewall.

Porteus Kiosk Server is different compared to the standard kiosk ISO in the following aspects:

  • Administration Panel is launched during system startup instead of the browser
  • Bottom panel is available
  • For doubled security ISO customizations are not allowed
  • Porteus Kiosk Server variant "Premium" has automatic updates enabled by default and requires installation on writable media
  • Contents:

    Requirements

    Setup procedure

    Product comparison and pricing

    Terms and conditions

    Troubleshooting connection problems

    Client logs

    Remote management

    Files utilized by the clients

    Requirements

    Once the server and clients are up and running, a SSL tunnel is created between them to allow communication through the SSH and VNC protocols (both are embedded in the SSL tunnel).


    The following requirements must be met for the server to work:

  • The server must be installed on the network in a location which is accessible by the clients
  • SSL tunnelling daemon listens on port 443 so incoming connections on this port must be allowed in your router/firewall configuration
  • If PK Server is installed on the virtualization platform like VMware, Hyper-V, VirtualBox, QEMU then at least 1024MB of RAM and 32MB of video memory should be allocated to the virtual machine otherwise server may not work correctly.
  • Porteus Kiosk Server version "Premium" must be able to access porteus-kiosk.org domain on ports 80 and 443 in order to receive updates. Please make sure that your firewall is not blocking it.

  • The following requirements must be met on the client's side:

  • Client must be able to reach Porteus Kiosk Server the same way its accessing e.g. google.com website (client initializes connection to the server)
  • The kiosk clients must be installed with support for Porteus Kiosk Server enabled in the wizard. kiosk_server and client_id parameters must be present in kiosk config. Client ID must be unique for each kiosk.

    EXCEPTION: Porteus Kiosk clients in version 4.3.0 and above can be configured with parameter 'client_id=automatic' which is the same for all clients.

  • SSH and VNC services must be enabled


  • Setup procedure

  • Download Porteus Kiosk Server installation ISO from our download page

  • Boot the system and follow the wizard to setup an internet connection, choose a preferred browser and select the server variant you would like to install. If you select version "Premium" then please send Server ID number to sales@porteus-kiosk.org in order to get the server activated.
  • When the server is up and running, configure the kiosk clients with support for Porteus Kiosk Server. Make sure the kiosk_server and client_id parameters are present in the kiosk config and ssh/vnc access to the client is enabled.
  • NOTE: if you use remote management with nested configurations enabled then kiosk_server parameter should be placed in the GLOBAL section of your remote config while client_id must be placed in the PCID sections and be unique per kiosk. Sample config can be found here.

    EXCEPTION: Porteus Kiosk clients in version 4.3.0 and above can be configured with parameter 'client_id=automatic' which does not have to be unique per client and can be placed in the GLOBAL section of remote config. Sample configs for clients 4.3.0 and above can be found here and here.

  • Once all kiosk clients are booted you can update the clients list in the Administration Panel and start performing monitoring or management tasks.

  • Porteus Kiosk Server overview:



    Product comparison and pricing

    Porteus Kiosk Server is offered in two versions: "Basic" and "Premium". Variant "Basic" is available for free while variant "Premium" requires a yearly subscription. The Administration Panel included in each system version supports a different number of functions depending on the variant that was selected during the installation:


    Basic Premium
    General features:
    Administration panel
    Number of supported clients Unlimited Unlimited
    Monitoring tasks:
    Monitor which kiosks are online
    Display client details: browser/kernel version, IP address, hostname, other
    Monitor system logs of the clients
    Interaction with the clients:
    Wake On Lan
    VNC connection: view-only or interactive
    SSH connection
    Mount remote filesystem locally
    Synchronize local and remote content
    Restart browser/Xorg session
    Reboot/shutdown the client
    Update browser homepage (use remote management for persistent change)
    Send custom command to the client: e.g. display notification
    Generate detailed system log of the client
    Remote management:
    Host client configuration on the Server
    System features:
    Automatic updates for the Server (new features and security fixes)
    Persistence for the client's list and custom startup scripts
    Server Wizard allowing customization of default system settings
    SSH and VNC access to the server from other PC
    Removable devices support
    Bottom panel with application launcher, task manager, systray, etc
    VMware tools/VirtualBox guest additions
    Price: Free €300/year



    Terms and conditions that apply to Porteus Kiosk Server variant "Premium"

    1) Before you buy the subscription for the "Premium" version of the product you are obliged to try "Basic" version (available free of cost) and ensure that kiosk clients are able to connect to the server. If communication issues occurs please contact support@porteus-kiosk.org and we will assist you with resolving them.


    2) You are entitled to a 30 days free trial of the "Premium" version of the product. Please contact with sales@porteus-kiosk.org in order to activate the trial.


    3) In order to use "Premium" version of the product you must deliver the Server ID number to our sales department at sales@porteus-kiosk.org. Server ID is displayed in the wizard during system installation.


    4) We accept online payments only: bank transfer (preferred), PayPal or credit card payment. Please do not send us bank checks as they wont be processed. Payment details are included in the invoice which we send to you.


    5) Your server will be activated in our database within 24 hours after receiving the Server ID number. During next boot the system will upgrade automatically and receive full functionality listed in the product comparison table.


    6) The server subscription is valid for 12 months. Renewal notice will be sent to your email address 30 days before the subscription expires.


    7) If you want to cancel the subscription and return to the "Basic" version of the product then you need to query sales@porteus-kiosk.org and the remaining part of the money will be returned to your account.


    8) Software and hardware related help will be provided without additional charge during the whole subscription period.


    9) You have the possibility of moving the subscription from one server to another in case of e.g. hardware failure. Just send us the Server ID which should be deactivated and the new one which should be activated in our database.


    Troubleshooting connection problems

    If you expercience problems with conencting clients to the Server then please do as follows:


    1) Make sure that kiosk client was configured with following parameters enabled (sample values used below). These parameters are required to make connection to the Server:

      kiosk_server=domain.com:443

      client_id=5000

      root_password=some_password

      vnc_password=some_password

      vnc_interactive=yes

      additional_components=08-ssh.xzm 09-x11vnc.xzm


    2) Type Server address (value of the kiosk_server= parameter with 'https://' prefix added) in the browser URL bar of the client:

      https://domain.com:443

    Press enter and check if you can connect to the Server. If browser returns 'Secure connection failed' message then everything is OK. Sample error message:


    In the Server logs you should see following entry:

      Apr 11 08:26:35 [stunnel] LOG3[12]: SSL_accept: 140890C7: error:140890C7:SSL routines:ssl3_get_client_certificate:peer did not return a certificate

    which indicates that browser did not have a valid certificate to be able to connect to the stunnel (this is expected).


    If you receive 'Unable to connect' message then it's your network or firewall configuration fault. Please remember that client must be able to access the Server the same way it's accessing the homepage.


    3) Press 'Refresh list' in the Administration Panel of the Server to check if client connected succesfully.



    Client logs

    If kiosk client is in version 4.1 or above then it will automatically send its system logs in severity warning or above to the Server. This is useful for proactive support and gives you a chance to take an action before critical condition occurs.


    Client logs are displayed in the reverse order (newest on top) in the Administration Panel. They are stored on the Server side in the /var/log/remote.log file which is persistent across Server reboots but gets rotated once it reaches 1MB in size. Administration Panel allows to view full client log, filter client logs by specific string (e.g. client ID), display archived (rotated) logs or delete all client logs from the Server.


    If the 'Client Logs' tab in the Administration Panel remains empty then you can be almost sure that your kiosks work without problems.


    Please do as follows to check if logging of the client events works correctly:

    a) open SSH connection to the client

    b) generate logging event with following command:

      logger -p local2.warning Please help - im having troubles

    c) check if the log you just generated got recorded in 'Client logs' tab of the Administration Panel


    If you enter following command on the client side:

      logger -p local2.notice Please help - i'm having troubles

    then your message will get into system log of the client (/var/log/messages) but will never be transported on the Server as its severity level is below 'warning'.


    If client logging does not work as it should then please contact support@porteus-kiosk.org for assistance.



    Remote management

    Clients in version 4.1 can be configured to download its configuration file directly from Porteus Kiosk Server. This is useful if you want to avoid using 3rd party web hosting service. Please follow remote management document for more informations about this feaute.


    Kiosk configurations which are stored on web hosting service must be saved in a plain text so its possible to edit them easily. This requirement may bring security concerns which is addressed by Porteus Kiosk Server. Configurations stored on our Server are encrypted by default and should be added, modified and deleted using Administration Panel only. Config files are downloaded by the clients through secure SSL/SSH tunnels so should never be captured and malformed by an attacker.


    Setup procedure is very similar to remote management with configs stored on web server. Changes are bolded below:

    a) boot Porteus Kiosk installation ISO on the target PC

    b) setup network then select 'Launch wizard to create new configuration' on the initial wizard screen

    b) enable 'Remote kiosk management' in the wizard options and provide name of the config which will be stored on the Server. Following format is required: server://config_name

    NOTE: 'server://' part is a text string indicating connection type and cant be replaced with your Server IP or domain.

    c) select other kiosk options as you like

    d) on the final configuration page in the wizard take a copy the config and send it to your email address or save on removable media

    e) add your saved config in the 'Remote Management' tab of the Administration Panel on the Server. Preserve name of the config which was provided in the wizard.

    f) install kiosk and check that it's able to download the config from the Server during first boot


    Configuration of additional kiosks:

    a) boot Porteus Kiosk on the target PC

    b) setup the network then select 'Point kiosk to existing remote configuration' on the initial wizard screen and provide name of the config which is stored already on Porteus Kiosk Server, example: server://group1.txt

    c) install the kiosk



    Files utilized by the clients

    Clients in version above 4.1 can be configured to download files directly from Porteus Kiosk Server. You need to add the files to the Server using Administration Panel ('Client Files' -> 'Add file') and then configure the clients using server:// string instead of traditional http(s):// or ftp://.


    Currently supported parameters are listed below:

      wallpaper=server://file.png

      browser_preferences=server://firefox_prefs.txt

      screensaver_archive=server://images.zip

      proxy_config=server://proxy.pac

      import_certificates=server://certificate1.crt


    Please mind that video file used for the 'screensaver_video=' parameter is an exception and cant be hosted on the Server.


    If you get into troubles with configs or files stored on the Server then please contact support@porteus-kiosk.org for assistance.