Now you can do some tests:
If the data to be sent empties the send buffer, the operating system 's tcp/ip stack automatically sets the psh flag for tcp packets, Similarly, when the server receives a message set with psh + sck flag, it means that the current data transmission has ended, so it is necessary to immediately submit the data to the service process and empty the receiving buffer without waiting to judge whether there will be additional data arriving.
2. The node objects in the chain can be flexibly split and reorganized, adding or deleting a node, or changing the location of the node is very simple.
他伸手在墙壁上摸索了一会,又一扇暗门无声打开。
A4.1. 3.1/Distant vision.
The rules for PREROUTING can exist in: raw table, mangle table, nat table.