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Are TCP ports bidirectional?
The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic.
What is dynamic port forwarding?
Dynamic port forwarding allows you to create a socket on the local (ssh client) machine, which acts as a SOCKS proxy server. When a client connects to this port, the connection is forwarded to the remote (ssh server) machine, which is then forwarded to a dynamic port on the destination machine.
What is dynamic port mapping?
Well , Dynamic port mapping allows you to run multiple tasks over the same host using multiple random host ports (in spite of defined host port). An Application Load Balancer uses dynamic port mapping so that you can run multiple tasks from a single service on the same container instance.
Is TCP a simplex protocol?
TCP can of course be full-duplex, wherein both hosts can generate datagrams at the same instant of time. However, it’s the MAC and PHY layers that truly determine whether these datagrams (now frames) can be exchanged in a full-duplex manner.
How to redirect port 80 to IP 202.54.1.5?
To redirect all port 80 conenctions to ip 202.54.1.5, enter: # socat TCP-LISTEN:80,fork TCP:202.54.1.5:80 All TCP4 connections to port 80 will be redirected to 202.54.1.5. This is just like netcat.
When is TCP bidirectional or full duplex?
For example the Ethernet is only half-duplex because at a specific time, only one host can send data over the wire, and it cannot send and receive data simultaneously. So when we use TCP over an Ethernet, I think TCP is only bidirectional or half-duplex.
Which is an example of a bidirectional connection?
Bidirectional means the data incoming and outgoing data flows over the same channel (sockets), in classical socket it is the case. For example you want to connect to a server: you create a socket, send and receive the data over the same channel.
What is the purpose of the SOCAT port forwarder?
socat Usage: TCP port forwarder. External socksifier. Attacking weak firewalls (security testing) A shell interface to UNIX sockets. IP6 relay. For redirecting TCP oriented programs to a serial line. Logically connect serial lines on different computers.