What is the use of netsed, a network data modification tool?

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Network data Modification tool netsed

By modifying network data, the restrictions of software and firewall can be bypassed to achieve specific purposes. Kali Linux provides a simple data modification tool netsed. The tool supports modifications to TCP and UDP data. Penetration testers determine the network data to be modified by specifying IP address and port number, and then specify modification rules to achieve the function of network modification. In the modification rule, the user can specify not only the replacement content, but also the number of modifications and data flow.

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