Nov 08, 2019

Solved: HTTPS Port 443 - Cisco Community HTTPS Port 443 I do not have much experience with firewall side of things, there for I had a question with regards to what I am trying to do. I have enabled Direct Access on Windows Server 2012, for DA to work it uses HTTPS port 443. PCI Nightmare - Port 443 (The Devil's Port) - Networking Feb 17, 2017 Port 443 Open - Security | DSLReports Forums

Using netstat -ao | find ":443", I found out that port 443 is being used by PID 4, which was the System process. This happened to me twice on Windows Server 2012, and it was due to one of the following reasons: IIS was running, listed as "World Wide Web P

What is port 443 used for? - Quora Name: https Purpose: http protocol over TLS/SSL Description: > This port is used for secure web browser communication. Data transferred across such connections are highly resistant to eavesdropping and interception. Moreover, the identity of the r Testing Port 443 Connectivity on Windows – Movere Support

Since port 443 is the default port for HTTPS content, censors are deterred from blocking the port altogether since it would mean blocking all of HTTPS traffic, which is a very high cost for just blocking VPNs disguising their traffic as "HTTPS". Note that there are measures to hamper the use of VPNs other than port-blocking.

In the case of https, whereas the default port used for standard non-secured "http" is port 80, Netscape chose 443 to be the default port used by secure http. (They chose port 443 because it was not being used for any other purpose at the time.) Observing SSL Certificates in Action: Difference Between HTTPS Port 443 and Port 8443