Are HTTPS headers encrypted ?

When sending data over HTTPS, I know the content is encrypted, however I hear mixed answers about whether the headers are encrypted, or how much of the header is encrypted.…
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How to prevent SQL injection in PHP ?

If user input is inserted without modification into an SQL query, then the application becomes vulnerable to SQL injection, like in the following example: $unsafe_variable = $_POST[‘user_input’]; mysql_query(“INSERT INTO `table` (`column`)…
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What are the steps to set up a firewall ?

Username/password: modify the default password for a firewall device Remote administration: Disable the feature of the remote administration Port forwarding: Configure appropriate port forwarding for certain applications to work properly, such as a…
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What is Cryptography ?

Cryptography is the study of securing communications from outside observers. Encryption algorithms take the original message, or plaintext, and converts it into ciphertext, which is not understandable. The key allows the user…
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