Transmission control protocol TCP

Transmission control protocol TCP The ultimate purpose of transport layer protocol is to provide reliable end-to-end transmission of data TCP is a connection oriented protocol, because it will initiate a formal connection before transmitting data to track the delivery of data packets. When the transmission is about to end, he will officiall ...

Posted by google_man2000 on Fri, 26 Nov 2021 04:32:22 +0100

3 DNS processing module dnspython

1.3 DNS processing module dnspython dnspython yes python Implementation of a DNS Toolkit, which supports almost all record types, can Used for query, transmission and dynamic update ZONE Information and support TSIG(Transaction signature) validation message and EDNS0(extend DNS). In terms of system management, we can use its query function ...

Posted by fI_Ux on Fri, 19 Nov 2021 14:11:02 +0100

NIO three components

1. Channel 1.1 what is Channel Channel is similar to Stream. It is a two-way channel for reading and writing data.You can read data from the channel into the buffer or write data from the buffer into the channel. (channel only deals with buffer)The previous stream is either input or output, and channel is lower than stream. 1.2 common channel ...

Posted by jabbaonthedais on Tue, 09 Nov 2021 04:58:10 +0100

Linux tips -- analog ping of raw socket

Raw socket raw socket In recent years, the main idea of scanning the surviving host is to simulate the ICMP message through socket, and then discover a new world of socket -- raw socket. raw socket, that is, the original socket, can receive data frames or packets on the local network card. It is very useful for monitoring network traffic a ...

Posted by Michael Lasky on Thu, 04 Nov 2021 23:27:34 +0100