ec2 api tools through an http proxy

I spent about an hour on this today so I thought it would be reasonable to post about it. I was trying to access the EC2 API tools behind my firewall at work, through our http proxy server. You can get this to work by setting a JVM environment variable called EC2_JVM_ARGS like so. Example is from a Linux box.

Example without username authentication (using ntlmaps)
export EC2_JVM_ARGS="-DproxySet=true -DproxyHost=localhost -DproxyPort=5865 -Dhttps.proxySet=true -Dhttps.proxyHost=localhost -Dhttps.proxyPort=5865"

Example with username authentication
export EC2_JVM_ARGS="-DproxySet=true -DproxyHost=http-proxy -DproxyPort=8080 -Dhttps.proxySet=true -Dhttps.proxyHost=http-proxy -Dhttps.proxyPort=8080 -Dhttp.proxyUser=username -Dhttp.proxyPass=password -Dhttps.proxyUser=username -Dhttps.proxyPass=password"

Voila..it works!
sodo@linux-z6tw:~> ec2din -v
Setting User-Agent to [ec2-api-tools 1.4.4.0]
Using proxy [http-proxy:8080]
Using proxy credentials [username@password] for all realms
------------------------------[ REQUEST ]-------------------------------
------------------------------------------------------------------------
REQUEST ID 76b60060-790c-403f-b0dd-75d06d7f3a79

Hooray!
sodo

Reference
https://forums.aws.amazon.com/thread.jspa?messageID=52041쭉