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java network programming 1.1 general Global village: you are in Xi'an, you are an American friend! How do you communicate with each other? 1.11 take a chestnut for sending letters The address of the other party, and the other party's information is located to a specific individual. Own address, own information With the above elements, rega ...

brief introduction Socket is an interprocess communication mechanism (socket IPC) under Linux. As mentioned earlier, using socket IPC can enable communication between applications on different hosts (network communication). Of course, it can also be different applications on the same host. Socket IPC usually uses the mode of client < - > ...

1, Serial port protocol and RS-232 standard 1. Serial port protocol Serial communication refers to a communication mode between peripherals and computers that transmits data by bit through data signal line, ground wire, control line, etc. Serial communication protocol refers to the relevant specifications that specify the content of data ...

Introduction to cerebral fissure In the high availability (HA) system, when the "heartbeat line" connecting two nodes is disconnected, the HA system, which is originally a whole and coordinated action, will be split into two independent individuals. Because they lost contact with each other, they all thought it was the other part ...

preface With the increasingly fierce game between attack and defense, professional security devices such as traffic analysis and EDR are widely used by defenders. The traditional webshll uploaded by files or the back door resident in the form of files are more and more easy to be detected. webshell has finally entered the era of memory hor ...

Access control list (ACL) catalogue Function and principle of access control list (ACL) Direction of access control list in interface application Type of ACL Application rules and principles of ACL Basic instruction Function and principle of access control list (ACL) Used to restrict access control (discard or release) of data packetsCo ...

executive summary          In this experiment, we try to use the IO multiplex select interface.          stay   [network programming] TCP socket single machine communication experiment   A demo of socket communication between a client thread and a server ...

1, Dynamic routing protocol partition algorithm Distance vector RIP EIGRP (fastest convergence) BGP (path information)Link state OSPF ISISPath vector BGP Scope AS IGP internal gateway protocolEGP border gateway protocol BGP partition AS 1-65535 64512-65535 private as 2 ^ 16 insufficient as number 2, Characteristics Neighbors can be estab ...

When you perfectly laid out your stack, leaked the address of libc, got the syetem address in libc, got the'/bin/sh'address, and sendline got through one step later, but you suddenly found out, what? Why did system fail? The address is also right, check it over and over, and it's all right. At this point you start to wonder if a new libc was ...

catalogue 1, DNS 1.1 introduction to DNS Service DNS (Domain Name System), as a distributed database mapping domain names and IP addresses on the Internet, can make it easier for users to access the Internet without remembering the IP strings that can be read directly by the machine. The process of obtaining the IP address corresponding to ...