My community centre has a public computer center. I am pretty sure that it\'s co

Question

My community centre has a public computer center. I am pretty sure that it's connected in a star topology with some switch in the center. It also have a proxy server which we need to enter a username and password to access the internet. The username and password can be requested from the service counter near the public computer center.

My question is that how might somebody using the community centre's computer do a MiTM attack on me also using the community centre's computer. Secondly, how might I be able to protect myself from such attacks.

Thanks!

Explanation / Answer

Everything Parthian said was spot on. HEAD requests are a like a 'short' GET request that avoids the network extra traffic and potentially the rendering overhead of a GET request.

There are a variety of reasons you, your browser, or your search engine may want to do a HEAD request. Some websites may just be pulling meta information off you, and your smaller response is to your benefit. More likely your browser or search engines are probably using HEAD requests to see if their cached versions of your pages are still up to date.

The Response header's "date" and "expires" field should be used by clients when your page is cached to determine when the next time they should visit your site for an update. Also the response headers may sometimes include a modified date that could also be used to indicate when your page needs to be updated.

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