Ports used during Scan

 

 

The various ports used during the scan and remote control is illustrated with the help of a diagram below,  

 

 

*  The range of the random port can be minimized. Click here to know how to restrict random ports.

 

Note:

  1. The ports - ICMP echo and ICMP echo reply, should be allowed in the firewall as it is used to ping the target machines.

  2. If the target machine has non English OS, then port TCP/7 should be added in the exception list of the firewall.

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