Proxy problem while Connecting Salesforce from Eclipse – Force.com IDE

Error:
Save error: Unable to perform save on all files: Unable to tunnel through proxy. Proxy returns “HTTP/1.1 503 Service Unavailable”

Technical Solution:
Problem seems to be that you are under proxy and Eclipse is unable to route the requests through the proxy.
Try if one of the below works for you also,

1) Configure Eclipe Proxy Settings:
Window ->Preferences ->General ->Network Conenctions
You can set your proxy settings here.

2) Use Firewall Client for ISA Server:
http://www.microsoft.com/DownLoads/details.aspx?FamilyID=05c2c932-b15a-4990-b525-66380743da89&displaylang=en
What this does is routes all requests through the proxy.

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I am Sakthivel Madesh, a certified Salesforce Developer & Administrator working on Salesforce Technology since 2011. I am currently working in Techforce Services as Sr. Salesforce Developer. I have worked on multiple technologies Like PHP, Java, Salesforce, I am very passionate about Salesforce and to earn 13x Salesforce Certification. I love Trailhead for learning Salesforce Skill and Become a Trailhead Ranger too. I Love to Learn & Share my Salesforce knowledge to Salesforce Learners/Beginner using My Blog and Salesforce Community.

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