I have checked that the port 443 is closed and is not listed on my droplet. Here is the output when i run the command : root@ubuntu-1gb-blr1-01:/# netstat -ntlp | grep LISTEN tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 4749/mysqld tcp 0 0 0.0.0.0:22 0.0.0
Nov 02, 2018 · Port 443 is the port number for the secure version of the Hypertext Transfer Protocol used to access web pages. It's used by servers and browsers to make sure that you access the right version of a site and that criminals aren't able to eavesdrop on you or tamper with the data you send across the internet. Nov 08, 2019 · Port 443 is the standard port for all secured HTTP traffic, meaning it’s absolutely essential for most modern web activity. Encryption is necessary to protect information, as it makes its way between your computer and a web server. 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: The web interface on port 443/tcp could allow an attacker to cause a Denial-of-Service condition by sending specially crafted packets to the web server. The device will automatically reboot, impacting network availability for other devices. An attacker must have network access to port 443/tcp to exploit the vulnerability. However, because website addresses and port numbers are necessarily part of the underlying TCP/IP protocols, HTTPS cannot protect their disclosure. In practice this means that even on a correctly configured web server, eavesdroppers can infer the IP address and port number of the web server, and sometimes even the domain name (e.g. www.example TCP Port 443 may use a defined protocol to communicate depending on the application. A protocol is a set of formalized rules that explains how data is communicated over a network. Think of it as the language spoken between computers to help them communicate more efficiently.
Oct 09, 2017 · Port 443 is used by the Uverse WAP to provide signal to wireless receivers. So in essence if have wireless receivers for Uverse IPTV then port is not accessible to other devices. If have internet only or all hardwired receivers then port 443 should be available to my knowledge.
Just in case you wan to try opening the port you will need to login on your router and add a port forwarding rule that forward port 443 to the internal IP Address of the thermo. It might be the case that you have thermo setup with DHCP which changes periodically and breaks your connection to the thermo. Static IP addressing is best in this senario.
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:
Mahesh. This example show configuring DTLS for AnyConnect and it does use port 443. But it is possible to specify a different port. So basically the ports you need to open will reflect choices that you make in configuring AnyConnect. To add Port 443 to the Windows Firewall in Windows 8, 8.1 and 10: Steps for Windows 7 see: How to add Port 443 to the Windows Firewall in Windows 7 Note: These steps are for the Windows Firewall and not the Mozy Program. Mozy cannot be responsible for your Firewall settings, our support can only make suggestions of what to add and how to add it. I have checked that the port 443 is closed and is not listed on my droplet. Here is the output when i run the command : root@ubuntu-1gb-blr1-01:/# netstat -ntlp | grep LISTEN tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 4749/mysqld tcp 0 0 0.0.0.0:22 0.0.0 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: