linux network utilization

will return to the waiting socket address5 * * Addrlen returns the socket address length of the peer6 * * Return value: Successful return non-negative integer, failed return-17 *********************************************************************************/8#include 9#include Ten One intAcceptintSOCKFD,structSockaddr *addr, socklen_t *addrlen);(6) Function connet1 /***********************************************************************************2 * * Function: Used to establish a connectio

(1) The IPV4 socket address structure is also commonly referred to as the "Internetwork Sockets address Structure", which is named "Sockaddr_in", and the is defined in the struct sockaddr_in{ uint8_t Sin_len;//Entire Sock Addr_in structure length sa_family sin_family;//Specify this address family, which must be set to Af_inet nbsp in_port_t Sin_port; Port struct in_addr sin_addr//piv4 address Char sin_sero[8]; Temporarily unused, typically set to 0

Article title: Network Management-Linux system network configuration details. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 1. View IP

Linux Kernel soft RPS implements load balancing and distribution for network reception soft interruptions, linuxrpsRoutine Linux Soft Interrupt distribution mechanism and problematic Linux interrupt are divided into the upper and lower half. Generally (this is true), the interrupted CPU executes the interrupt processin

First, Linux network management 1-1.linux Configure IP address Linux Configuration IP Address method1). ifconfig command to temporarily configure IP addresses2). The Setup tool permanently configures IP addresses3). Modify Network configuration file4). Graphics

in Linux, the network is divided into two tiers, namely the Network Stack protocol support layer, and the device driver layer that receives and sends the network protocol. Network stack is a separate part of hardware, mainly used to support TCP/IP and other protocols, the

The netstat command is used to print the status information of network systems in Linux, allowing you to know the network conditions of the entire Linux system.-A (All) displays all options and does not show listen related by default-T (TCP) displays only TCP-related options-U (UDP) displays only UDP-related options-N

In Linux, network programming is implemented through socket. network programs call socket and several other functions to return a communication file descriptor. we can regard this descriptor as a common file descriptor for operation, this is the benefit of Linux's device independence. we can exchange data between networks by reading and writing the descriptor. 1

Linux system kernel settings optimized TCP network, # vi/etc/sysctl.conf, add the followingNet.ipv4.tcp_syncookies = 1Indicates that SYN Cookies are turned on. When there is a SYN wait queue overflow, cookies are enabled to protect against a small number of SYN attacks, the default is 0, which means close;Net.ipv4.tcp_tw_reuse = 1means to turn on reuse. Allows time-wait sockets to be re-used for new TCP con

Linux network problems regarding the solution to the connect network is unreachable problem some netizens found that the ping command encountered the problem of connect: network is unreachable. This is usually because the IP address is not set correctly. Solution: After the NIC Driver is improved and the NIC Driver is

This script modifies Linux/ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETHX network card files in the network card one, network card two IP address (ipaddr), subnet mask (NETMASK) information #!/bin/shProc=/bin/sedFile_path1=/etc/sysconfig/net