Can anybody give me a working proxy server & port no. for accessing Facebook and Gmail by bypassing a firewall?
There is no working proxy or any thing else because you would violate a security policy by using anything to try to bypass.You risk being fired, facing fines, etc. etc. etc. Take some time to think about it because if where you are at has a firewall, they probably also have audit logs.
That said, Kali Prasad Sahani's technique would not get you in much trouble, because it is not any different from using the URL Google.Com, it will resolve just the same. If the firewall is setup correctly it shouldn't let it by, but you never know. IP decimal is really cool to play with.
See you can also try my equation:
188.8.131.52 (Facebook IP)
3.Place it on Google for Answer
Place this ip address in google:1 168 891 917
It depends on how the firewall has been configured. (We don't know what the sys admin's firewall policies are).
First off, try going to the domains IP Address. If your firewall isn't performing NAT, this will most likely work. Enter this IP Address into your browser's URL (as if it were a web address)
If that doesn't work, try one of these proxies (Keep trying till one works):
Free Web Proxy
3 Facebook Proxies & Hacks to Check Facebook From Anywhere (Works with Gmail too)
You may also configure a proxy in your browser as well, using a proxy list