Check If a Remote Network Port Is Open Using Command Line

I have asked the network admin to open ports 9998, 9999 and 1433 (for the NetIQ agent) to/from the external webservers to our two NETIQ servers. He is telling me that the ports are open, but the agent is not working. I not 100 percent sure that he successfully opened the ports but do not have the access to the firewall to double check. Jul 02, 2017 · (Check and recheck your port forwarding rules on your outward facing router or firewall, wherever you are supposed to have port forwarding set up.) Your internet connection on your server is set to the incorrect Domain/Private/Public firewall profile and you aren't blocking port 25 on the associated firewall profile. Port 443 is generally used for secure transmissions. It would normally only need to be "open" if you wanted another computer on the Internet to be able to securely call your router (or computer). This is typically used by businesses that want to establish a secure VPN (virtual private network) connection, to connect two branches of their Oct 04, 2018 · 👍 Watch how to open ports in a Windows operating system, how to check if the necessary port is open, check the status of all ports, and find out which port is used by a specific program. Using netcat, you can check if a single or multiple or a range of open ports as follows. The command below will help us see if the port 22 is open on the host 192.168.56.10: $ nc -zv 192.168.1.15 22 In the command above, the flag:-z – sets nc to simply scan for listening daemons, without actually sending any data to them.-v – enables

Oct 04, 2018 · 👍 Watch how to open ports in a Windows operating system, how to check if the necessary port is open, check the status of all ports, and find out which port is used by a specific program.

LinuxQuestions.org - Check port open status for port 443 If everything is not setup properly no any tool in this planet earth, can tell whether that port is open or not. Here's an exercise, use any tool you want and check whether Port 80 is open or not, if it is open then check 443, if it is not open try accessing: https://www.duckduckgo.com Check whether you can access or not.

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Oct 04, 2018 · 👍 Watch how to open ports in a Windows operating system, how to check if the necessary port is open, check the status of all ports, and find out which port is used by a specific program. Using netcat, you can check if a single or multiple or a range of open ports as follows. The command below will help us see if the port 22 is open on the host 192.168.56.10: $ nc -zv 192.168.1.15 22 In the command above, the flag:-z – sets nc to simply scan for listening daemons, without actually sending any data to them.-v – enables