Port Scan - Monitor open ports

Perform an online port scan, test open ports

Please enter the host you want to scan for open ports

Port scan

Open ports are are dangerous possibility for hackers to get access to you systems. You should close them as long as you don't really need them to be accessable from public sources.

We perform a port scan on the entered host.

Your host should only expose ports who are really necessary.

Port monitoring results

Your host should only expose ports who are really necessary.

  • Open port monitoring
  • Servicename of port
  • Protocol
  • Port number found
  • Number of ports
  • Overall port monitoring

Knowledge Base

Here we answer questions about server monitoring from Livewatch. If you have a question that we have not yet answered here, please contact us.

Why is it import to scan open ports?

Open ports enable communication between client and server. It is important to only make those ports accessible that are really necessary. Close ports that are not absolutely necessary or only open them temporarily when in use. With our port scan tool you can find all ports that are externally accessible.

Are open ports potential gateways for attackers?

Open ports are potential gateways for attackers. This is why the following principle applies to PC owners as well as to server administrators: Leave as many ports open as necessary and as few as possible. In concrete terms, this means that you simply switch off services that you do not need before an attacker uses them to penetrate your system.

Port Scan - How Often Should I Perform the Port Scan?

Open ports can easily be overlooked. However, they represent potentially dangerous gateways for hackers. You should perform the port scan at relatively short intervals. The smallest configuration changes can provide new unsecured ports and increase the risk of attacks. With Livewatch you can perform the port scan automatically and be alerted by us immediately in the event of undesired ports.

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