JANIS and HTTP proxies

Do I need to setup an HTTP proxy to be able to connect to the NEA remote database ?
Connection problem with NEA remote database in JANIS 2.2 and 2.2.1
How to setup an HTTP proxy in JANIS 2.2 and 3.0
How to setup an HTTP proxy in an old JANIS version (<2.2)

JANIS have access to the NEA remote database through the HTTP protocol, like a usual web browser, if you can see this page then you should be able to connect to the remote database.
But, for some organization, web access must go through a proxy server (usually for security reasons). This requires an additional setting, already done for your internet browser, but which should be set for JANIS as well.

Do I need to setup an HTTP proxy to be able to connect to the NEA remote database ?

You can obtain this information from your system administrator. In case you use Internet Explorer you can check this here :

go to menu "Tools", "Internet Options..." item
in the dialog select "Connections" tab
click the "LAN Settings..." button dialog, the following dialog will appear :
if the checkbox "Use a proxy server for your LAN" is checked then this mean you also need to set up a proxy in JANIS to be able to connect to the NEA remote database.

Connection problem with NEA remote database in JANIS 2.2 and 2.2.1

For JANIS versions < 2.2.2, you may get the following error dialog when you attempt to connect to the NEA remote database.

The root cause of this problem is the HTTP proxy settings. The default proxy name (proxy.sample.com) was meant to be a fictitious one, but recently this address became accessible on the Internet making connection to the NEA database impossible. Besides, the checkbox (Use a proxy server) in the Preferences dialog was not working and all connections were attempting to contact this server as a proxy. This problem went unnoticed before this host became reachable on the internet and moreover rejects incoming connections.

You can solve the problem by applying the following steps if you want do not want to upgrade:

Launch JANIS
go to menu "File", "Preferences..." item
in the dialog select the "Network" tab
uncheck "Use a proxy server"
make sure the "Address" and "Port" fields are cleared
click on the button "Test connectivity" to try to connect to NEA website
then save your settings

How to setup an HTTP proxy in JANIS 2.2 and 3.0

Launch JANIS
go to menu "File", "Preferences..." item
in the dialog select the "Network" tab
check "Use a proxy server"
enter in "Address" and "Port" the same settings as in Internet explorer or the information you got from your network administrator
click on the button "Test connectivity" to try to connect to NEA website with the new settings
if the test is ok then save your settings, and JANIS should be able to connect to the NEA remote database.

How to setup an HTTP proxy in an old JANIS version (<2.2)

In previous versions there was no dialog to set this, so you need to change the small file which launch JANIS : either janis.bat or janis.sh, depending on your operating system (.bat for windows, .sh for Unix flavours).
You should add this on the line which starts with "java" :

      -DproxySet=true -Dhttp.proxyHost=XXXX -Dhttp.proxyPort=XXXX

Replace the XXXX by the values you got from your network administrator or you find in Internet Explorer settings.

So your janis.bat (or janis.sh) should look like :

      @echo off
      cd software
      java -DproxySet=true -Dhttp.proxyHost=myproxy -Dhttp.proxyPort=1234 -Djdbc.drivers=com.mckoi.JDBCDriver -Xms100M -Xmx200M -jar Janis.jar
      
      rem # -Dlog4j.configuration=file:./log4j.properties

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Last modified:Tuesday, 30-Nov-2010 19:02:22 CET