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en:allgemein:remotenutzung_von_bwlehrpool [2020/10/30 14:38 CET]
chr [Present limitations and problems]
en:allgemein:remotenutzung_von_bwlehrpool [2020/11/04 17:15 CET] (current)
chr [URL, Login, choice of location]
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 <note important>**Please note:**  <note important>**Please note:** 
-Development for remote access to bwLehrpool is ongoing. While the software is already stable and usable, it is in beta stadium. We are grateful for feedback. Please note the limitations mentioned [[#present_limitations_and_problems|below]].</note>+Development for remote access to bwLehrpool is ongoing. While the software is currently stable and usable, it is in the beta stage. We are grateful for feedback. Please note the limitations mentioned [[#present_limitations_and_problems|below]].</note>
  
-<note tip>If you are interested we offer evaluation accounts for testing the remote solution using the system of Freiburg university. If so, please drop a note to bwlehrpool@hs-offenburg.de</note>+<note tip>We offer evaluation accounts for testing the remote solution using the system of Freiburg university. If you are interested in access, please send an email to bwlehrpool@hs-offenburg.de</note>
  
  
 ===== Preface ===== ===== Preface =====
  
-Due to the current situation (Corona/Covid crisis) most universities are barred to public traffic and their computer pools are closed. Many lecturers therefore relocate their lectures into the web after recording them on video. But for practical work students are missing their accustomed learning environments in form of the software normally provided in computer pools. Installing this software on student's computers is often not possible due to license constraints, missing installation packets, or often just lacking configuration skills.+Due to the current situation (Corona/Covid crisis) most universities are barred to public access, and their computer pools are closed. Many lecturers are recording their lectures and publishing them to the web. But the students are missing the opportunity to do practical work that was carried out on software provided in computer pools. Installing this software on student's computers is often not possible due to license constraints, missing installation packets, or often just a lack of configuration skills.
  
-As the bwLehrpool client computers are usable, but not reachable for students, a possibility was developed to access these unused computers via a simple web browser remote from everywhere. This was achieved using Apache Guacamole((https://guacamole.apache.org/)), which works as a kind of VNC-proxy/gateway. Users are connected to pool compuers via this gateway. Display and input works simply via an HTML5 capable web browser, for which neither especially capable hardware is required nor any previous software installation.+As the bwLehrpool client computers are in principle usable, but not physically accessible to students, a possibility was developed to access these unused computers from everywhere via a simple web browser. This was achieved using Apache Guacamole((https://guacamole.apache.org/)), which works as a kind of VNC-proxy/gateway. Via this gateway users are connected to pool computers. Display and input works simply per an HTML5-capable web browser, which requires no special hardware or installation of software.
  
  
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 ==== Requirements ==== ==== Requirements ====
  
-Besides an HTML5-capable browser as eg. Firefox, Opera, Edge, Chromium or Apple Safari just a reasonably fast internet access is necessary.+An HTML5-capable browser (e.g. Firefox, Opera, Edge, Chromium or Apple Safari) and a reasonably fast internet connection is needed.
  
-==== URL, Login, choice of romm ====+==== URL, Login, choice of location ====
  
-The URL needed for accessing bwLehrpool-remote is different for every university. Please ask local support if in doubt. Javascript is required; watch out for javascript blocking browser extensions like NoScript.+The URL needed for accessing bwLehrpool-remote is different for every university. Please ask your local support for the address in your case. Javascript is required; watch out also for javascript-blocking browser extensions like NoScript.
  
-| \\ \\ **After entering the web adress (URL)** \\ \\ you see in your browser window the login to bwLehrpool-remote analog to the picture at the right. Enter your user credentials and click "Anmelden". \\ \\ **Login problems** can be caused by the web interface handling special characters contained in your password differently. Hint: Enter your password resp. doubtful special characters into the user name box(do not send!). | {{ client:bwl_remote:341_01_bwlehrpool_remote_login.png?160}} | +| \\ \\ **After entering the web adress (URL) in your browser** \\ \\ you will see the bwLehrpool-remote login screen to  analog to the picture at the right. Enter your user credentials and click "Anmelden". \\ \\ **Login problems** can be caused by the web interface handling special characters contained in your password differently than expected. Hint: Test the special characters in your password by typing them into user name box (do not send!). | {{ client:bwl_remote:341_01_bwlehrpool_remote_login.png?160}} | 
-| \\ \\ **After Login** \\ \\ you will perhaps find several rooms. There may be a difference in selectable software environments for each room due to bwLehrpool's ability of showing different environments. Remember that if you do not find your accustomed environmentask your lecturer which room you should chose if in doubt. \\ \\ **Attention**: Adjust at this step the dimensions of your browser window to the size you want! \\ \\ Your display may vary from the adjacent example, as each university/institution offers different rooms.| {{client:bwl_remote:640_02_bwlehrpool_remote_raumauswahl.png?320}} | +| \\ \\ **After Login** \\ \\ you will perhaps find several locations. There may be a difference in software environments available for each location due to bwLehrpool's ability of showing different environments. If you do not find your accustomed environmentask your lecturer which location you should chose. \\ \\ **Attention**: At this step adjust the dimensions of your browser window to the size you want! \\ \\ Your display may vary from the adjacent example, as each university/institution offers different locations.| {{client:bwl_remote:640_02_bwlehrpool_remote_raumauswahl.png?320}} | 
-| \\ \\ **Freely accessible rooms** \\ \\ Mark the room you wanted per single left click and press "Weiter". | {{client:bwl_remote:03_bwlehrpool_remote_raumauswahl_balken.png?320}} | +| \\ \\ **Freely accessible locations** \\ \\ Select the location you want via single left click and press "Weiter". | {{client:bwl_remote:03_bwlehrpool_remote_raumauswahl_balken.png?320}} | 
-| \\ \\ **Rooms secured by password** \\ \\ Some rooms may be locked by password. In that case mark the room in question, enter the password and click on "Weiter". \\ \\ This possibility could be used to restrict access to some software which is severely limited by license agreements. | {{client:bwl_remote:640_04_bwlehrpool_remote_raumauswahl_passwort.png?320}} | +| \\ \\ **Locations secured by password** \\ \\ Some rooms may be password protected. In that case select the room in question, enter the password and click on "Weiter". \\ \\ This possibility might be used to restrict access to some software which is severely limited by license agreements. | {{client:bwl_remote:640_04_bwlehrpool_remote_raumauswahl_passwort.png?320}} | 
-| \\ \\ **Choosing the environment** \\ \\ Further operation just as usual just as if you were locally present in the computer room.. | {{client:bwl_remote:640_05_bwlehrpool_remote_vmchooser_in_browser.png?320}} |+| \\ \\ **Choosing the environment** \\ \\ Continue as usualjust as if you were physically present in the computer room. \\ \\ Note: If your choosen environment „hangs“ during startup it would be advisable to logout, wait some minutes and try again. | {{client:bwl_remote:640_05_bwlehrpool_remote_vmchooser_in_browser.png?320}} |
  
  
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 ==== Present limitations and problems ==== ==== Present limitations and problems ====
  
-  * If there are no accessible computers at a given time or all readily available computers are already used, new clients will be booted in the background (using WoL). This may take some time. +  * If there are no accessible computers at a given time or all readily available computers are already in use, new clients will be booted in the background (using WoL). This may take some time. 
-  * As of now PVS is not usable remotely. +  * Currently, PVS is not usable remotely. 
-  * At the moment there is no hardware acceleration for graphics cards.+  * There is currently no hardware acceleration for graphics cards.
  
  
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