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Learn about the meaning and usage of HTTP response status codes, which indicate the server's response to a client's request. Find out the five classes of codes, from 1xx to 5xx, and their typical messages and examples.
HTTP 502 is an error code that indicates a problem with the communication between a proxy or gateway server and an upstream server. Learn the specification ...
HTTPS is HTTP over TLS or SSL, which encrypts and authenticates the communication between a client and a server. HTTPS protects against eavesdropping, tampering, and man-in-the-middle attacks, and is widely used on the Internet for privacy and security.
HTTP Strict Transport Security (HSTS) is a policy mechanism that helps to protect websites against man-in-the-middle attacks and cookie hijacking. It allows web servers to declare that web browsers should only use HTTPS connections, which provide Transport Layer Security (TLS/SSL).
TLS is a cryptographic protocol that provides security for network communications. It uses asymmetric and symmetric cryptography, digital certificates, and handshake protocols to establish confidentiality, integrity, and authenticity.
If you have problems sending AOL Mail, you may need to restart your computer, update your browser, disable pop-up blocker, or reset your firewall. Learn how to fix common sending errors, image challenges, and missing images in this article.
Server Message Block (SMB) is a protocol for file and printer sharing over a network. It uses TCP port 445 for the server component and other ports for NetBIOS services. Learn about SMB features, history, and security.
Not affected Mitigated Not affected Only as fallback [n 15] Mitigated Mitigated [25] Temporary [n 11] 48, 49 No No Yes Yes Yes No Yes (only desktop) Yes Needs ECC compatible OS [3] Not affected Mitigated Not affected Disabled by default [n 16] [26] [27] Mitigated Mitigated Temporary [n 11] 50–53 No No Yes Yes Yes No Yes (only desktop) Yes Yes ...