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This page (revision-7) was last changed on 09-Oct-2016 18:14 by Ben Spink

This page was created on 09-Oct-2016 18:14 by Ben Spink

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The CrushTunnel process can be integrated into an existing workflow using a standalone machine acting as the tunnel provider, or programmatically through your own code.
!Start a Single Tunnel
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Here is a stand alone example:
The CrushTunnel process can be integrated into an existing workflow using a standalone machine acting as the tunnel provider, or programmatically through your own code. CrushTunnel.jar can be found in the CrushFTP WebInterface folder.
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Here is a stand alone example (one long line):
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java -Dcrushtunnel.pasv.ip=71.123.244.10 -Dcrushtunnel.pasv.port.start=2000 -Dcrushtunnel.pasv.port.stop=2100 -Djava.awt.headless=true -cp CrushTunnel.jar com.crushftp.tunnel.AutoChannelProxy protocol=https host=www.crushftp.com port=443 username=demo password=demo localport=2121
java -cp CrushTunnel.jar com.crushftp.tunnel2.Tunnel2 protocol=https host=www.crushftp.com port=443 username=demo password=demo
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The tunnel adds some overhead to the transaction, so its suited best for large transfers where it can accelerate them avoiding latency issues. Small files do not benefit from the tunnel other than being inside the encrypted network.
----
!Start a Tunnel in Code
To programmatically start the tunnel, include the CrushTunnel.jar file, and do something similar to the following:
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To programmatically start the tunnel, include the CrushTunnel.jar file.
{{{
com.crushtunnel.gui.Common.trustEverything(); //ignore SSL validation issues…bad for prod use
com.crushftp.tunnel2.Tunnel2 t = new com.crushftp.tunnel2.Tunnel2("https://www.crushftp.com:443/", "demo", "demo", false);
t.startThreads();
//tunnel is now open and ready. Connections to it over FTP on 127.0.0.1 will be proxied securely through the tunnel to the CrushFTP FTP server side.
//to stop it later on
t.stopThisTunnel();
}}}
----
!Install as a Service on Windows for an Always on Tunnel
Here is another example for installing the tunnel as a service on Windows. First, make sure you have CrushFTP installed as a service on windows. You need this as we need the "service" folder that this creates. Copy this service folder somewhere else and call it "CrushTunnel". For my example, I put this in my program files folder.
Now edit the wrapper.conf file to make it have these contents, with adjustments to the bottom part which applies to your server.
{{{
wrapper.java.command=C:\\Program Files (x86)\\Java\\jre6\\bin\\java
wrapper.working.dir=C:\\Program Files (x86)\\CrushTunnel\\
wrapper.java.app.mainclass=com.crushtunnel.gui.GUIFrame
wrapper.console.visible=false
wrapper.console.title=CrushTunnel
wrapper.ntservice.name=CrushTunnel
wrapper.ntservice.displayname=CrushTunnel
wrapper.ntservice.description=CrushTunnel
wrapper.tray=false
wrapper.on_exit.0=SHUTDOWN
wrapper.on_exit.default=RESTART
wrapper.java.classpath.1=CrushTunnel.jar
wrapper.java.additional.1=-Xmx128m
wrapper.java.additional.2=-Dcrushtunnel.remote.protocol=https
wrapper.java.additional.3=-Dcrushtunnel.remote.ip=www.crushftp.com
wrapper.java.additional.4=-Dcrushtunnel.remote.port=443
wrapper.java.additional.5=-Dcrushtunnel.remote.user=demo
wrapper.java.additional.6=-Dcrushtunnel.remote.pass=demo
}}}
Now you can test this config from the DOS prompt, or install the service.
{{{
#test
java -jar wrapper.jar -c wrapper.conf
#install
java -jar wrapper.jar -i wrapper.conf
#remove
java -jar wrapper.jar -r wrapper.conf
}}}
(If installing the service, your DOS prompt needs to be running as an administrator.)
----
__Command Line JNLP Launch__\\
You could also launch a specific tunnel from the command line using Java WebStart.
{{{
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="https://www.crushftp.com">
<information>
<title>CrushTunnel</title>
<vendor>Ben Spink</vendor>
<offline-allowed/>
<shortcut online="true">
<desktop/>
</shortcut>
</information>
<security><all-permissions/></security>
<resources>
<j2se version="1.2+" /><jar href="/WebInterface/CrushTunnel.jar"/>
</resources>
<application-desc main-class="com.crushftp.tunnel2.Tunnel2">
<argument>protocol=https</argument>
<argument>host=www.crushftp.com</argument>
<argument>port=443</argument>
<argument>username=demo</argument>
<argument>password=demo</argument>
</application-desc>
</jnlp>
}}}
Version Date Modified Size Author Changes ... Change note
7 09-Oct-2016 18:14 3.976 kB Ben Spink to previous
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5 09-Oct-2016 18:14 3.029 kB Ben Spink to previous | to last
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« This page (revision-7) was last changed on 09-Oct-2016 18:14 by Ben Spink
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