问题
I need to compile a list of the addresses of all the CDNs used by Facebook.
Example:
fbcdn-sphotos-a.akamaihd.net
fbstatic-a.akamaihd.net
...
I need these for a captive portal application that allows user to connect to WiFi with facebook. We allow facebook.com through the firewall for Graph API calls, but one of the issues we had is that the Facebook login dialog takes forever to load and loads without stylesheets/images. We fixed that by white-listing fbstatic-a.akamaihd.net, but we want to make sure we won't have surprises later.
回答1:
fbstatic-a.akamaihd.net
fbcdn-profile-a.akamaihd.net
fbcdn-sphotos-a-a.akamaihd.net
fbcdn-creative-a.akamaihd.net
fbexternal-a.akamaihd.net
And:
fbcdn-sphotos-b-a.akamaihd.net
fbcdn-sphotos-c-a.akamaihd.net
fbcdn-sphotos-d-a.akamaihd.net
fbcdn-sphotos-e-a.akamaihd.net
fbcdn-sphotos-f-a.akamaihd.net
fbcdn-sphotos-g-a.akamaihd.net
fbcdn-sphotos-h-a.akamaihd.net
Those start from character A and ends at H, if Facebook would add a new domain it must be like :
fbcdn-sphotos-i-a.akamaihd.net
So future CDN domains would be
fbcdn-sphotos-j-a.akamaihd.net
fbcdn-sphotos-k-a.akamaihd.net
fbcdn-sphotos-l-a.akamaihd.net
fbcdn-sphotos-m-a.akamaihd.net
fbcdn-sphotos-n-a.akamaihd.net
And So on.. till character Z
回答2:
akamaihd is used for old photos and for special photos(cover ph. example..) only as I see...
They created new servers and there is some new logic in them as well. Example:
scontent-a-lhr.xx.fbcdn.net
scontent-b-lhr.xx.fbcdn.net and more but I have seen some shared photos on interesting links. Example this:
https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn2/v/1472407_10151814939401656_1687041676_n.jpg?oh=d92bc9af7f987c5fe298ecc8c717a4e1&oe=5287894B&__gda__=1384659513_abeb3f33223e6e737aff91419149509e
来源：https://stackoverflow.com/questions/19568411/list-of-facebook-cdn-addresses