SSL error when redirect to HTTPS

[Prince$O$Persia]

I just set up SSL on my IIS. Suddenly, I no longer accept http requests. Any customer arriving to my site via http then receives an error page 403.4 who asks him to repeat his request under https. Is there a way to configure IIS to redirect the client so transparent http to https? Please help. Thank you in advance.

[Milton.J]

Check the level of encryption (encryption) of Internet Explorer. To do this, click on "?", Then "About Internet Explorer". If the level is greater than or equal to 128 bits, then proceed to Step 2, otherwise:
* Update the system with the latest Service Pack
Check your browser's settings. In Internet Explorer, click the Tools menu, then choose "Internet Options". Click the Advanced tab and scroll through the list "Settings" to the Security section. Check the boxes "Use SSL 2.0" and "SSL 3.0" are checked properly!

[Spyrus]

While SSL is independent of protocol, which means it may as well make secure transactions on the Web by HTTP as connections via FTP, POP or IMAP. Indeed, SSL acts as an additional layer, to ensure data security, located between the layer application and layer Transportation (TCP for example). In this way, SSL is transparent to the user (meaning that there may ignore it uses SSL). For example a user using a web browser to connect an e-commerce website secured with SSL send encrypted data without any manipulation necessary on its part.

[Snake08]

The server receives the request sends a Certificate to the client with the server's public key, signed by a certification authority (CA), and the name of the cryptosystem the highest in the list with which it is compatible (the length of the encryption key - 40 bits or 128 bits - will be the common cryptosystem having the greatest key size). The server is able to decrypt the session key with its key private. Thus, both entities are in possession of a shared key that they are Only connoisseurs. The remaining transactions can be done using the session key, ensuring the integrity and confidentiality of data exchanged.

[Zachary]

Firefox comes with a number of CAs by default. These authorities have passed a certification audit their procedures and are therefore considered reliable (do not give cert for people who do not have the field, there have been glitches, but the CRL have to correct them). The list of certification authorities involved are very large: it covers most of the sites using https. If the original poster had a problem with a site, this could be it, but not all. In this case, it is probably something that intercepts the connection. Some proxy (corporate), some AV do: the content of the certificate should tell us more.