2018-6-21 · 本文引用了维基百科中文版内的TCP/UDP HTTPS - HTTP over TLS/SSL （加密传输） 444/TCP,UDP SNPP，Simple Network Paging Protocol 445/TCP Microsoft-DS (Active Directory，Windows

1 day ago · 区别 HTTP/2 HTTP/3 传输 TCP 基于UDP的QUIC 流层 应用 传输 默认加密 无 有 独立流 无 有 报头压缩 HPACK QPACK 握手 更快的0-RTT TCP+TLS的1-3RTT 连接消除 无 有 拥塞控制损失恢复 The DTLS protocol datagram preserves the semantics of the underlying transport—the application does not suffer from the delays associated with stream protocols, but because it uses UDP, the application has to deal with packet reordering, loss of datagram and data larger than the size of a datagram network packet. The DTLS protocol is built on top of the User Datagram Protocol (UDP). DTLS is designed to be as similar to TLS as possible to minimize new security invention and to maximize the amount of code and infrastructure reuse. The cipher suites that are available for configuration are patterned after those you can configure for TLS. RC4 is not permitted. TLS was designed to operate on top of a reliable transport protocol such as TCP. However, it has also been adapted to run over datagram protocols such as UDP. The Datagram Transport Layer Security (DTLS) protocol, defined in RFC 6347, is based on the TLS protocol and is able

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Jul 30, 2016 · The QUIC protocol implements its own crypto-layer so does not make use of the existing TLS 1.2. It replaces TCP with UDP and on top of QUIC is a smaller HTTP/2 API used to communicate with remote servers. The reason it’s smaller is because the multiplexing and connection management is already handled by QUIC.

The Constrained Application Protocol (CoAP) was designed for Internet of Things (IoT) deployments, assuming that UDP can be used unimpeded, as can the Datagram Transport Layer Security protocol (DTLS ) over UDP. The use of CoAP over UDP is focused on simplicity, has a low code footprint, and a small over-the-wire message size.

SSL/TLS typically runs on top of TCP, but there is nothing to stop you from running it on UDP, SCTP or any other transport layer protocol. As a matter of fact HTTPS over TCP and UDP are both defined as "well known" by IANA and have reserved port numbers. Jul 03, 2017 · The UDP protocol works similarly to TCP, but it throws out all the error-checking stuff. All the back-and-forth communication introduce latency, slowing things down. When an app uses UDP, packets are just sent to the recipient. The sender doesn’t wait to make sure the recipient received the packet—it just continues sending the next packets. The UDP 3478-3481 and TCP 443 ports are used by clients to request service for audio visuals. A client uses these two ports to allocate UDP and TCP ports respectively to enable these media flows. The media flows on these ports are protected with a key that is exchanged over a TLS protected signaling channel. Federation Safeguards for Teams Smithproxy is highly configurable, fast and transparent TCP/UDP/TLS (SSL) proxy written in C++17. It uses our C++17 socket proxying library called socle. Yes, we love C++! Check documentation for information about scenarios and how it can installed, compiled or deployed using docker or snap. Availability: For more information, see TLS listeners for your Network Load Balancer. To support both TCP and UDP on the same port, create a TCP_UDP listener. The target groups for a TCP_UDP listener must use the TCP_UDP protocol. You can use WebSockets with your listeners. Jul 06, 2018 · The TLS handshake on the control channel protects the data channel by detecting alterations and ensuring data confidentiality is in place. OpenVPN UDP and TCP are both subject to vulnerabilities on the transport layer without the TLS encryption. This is why the SSL/TLS handshake is such an integral component of the protocol. DTLS is used for delay sensitive applications (voice and video) as its UDP based while TLS is TCP based. DTLS is supported for AnyConnect VPN not in IKEv2 . How it works? SSL − Tunnel is the TCP tunnel that is first created to the ASA; When it is fully established, the client will then try to negotiate a UDP DTLS − Tunnel