linux network utilization

Installation of Linux systems:1.linux System Installation Method three kinds:1. Install the Linux system independently.2. Install the Linux system on the virtual machine.A. Install the virtual machine, basically go all the way down.B. Install Linux.Partitioning is key when C.linux is installed./boot partition 100M./swa

For more Tim articles, visit: IBM tim series Level: elementaryM. Tim Jones, consultant engineer, emulexJuly 16, 2007 Linux? One of the biggest features of the operating system is its network stack. It was originally originated from the BSD

1. Network Interfaces and configuration tools; Network interfaces are the representation of network hardware devices in the operating system. For example, if the network adapter uses ethx in the Linux operating system, it is a positive integer starting from 0, for example,

Review database MySQL backup and recovery:show databases;User spdb1;Show tables;Perform a backup in the Mysql/bin directory:./mysqldump-u root-p spdb1 >/home/spdb1.bakYou will be prompted to enter the password for the user root.Delete a database drop databases spdb1;Recovery database: Mysql-u root-p database name You need to create a new empty database before recovering the database, otherwise error. Create a new user under/mysql/bin: the Create database name;SSH Introduction:SSH (Secure Shell)

Configuration of the Linux networkFirst, configure the networkVi/etc/sysconfig/network Configuring the NetworkVi/etc/sysconfig/network-scripts/ifcfg-eth0Device= "eth0:0"Ipaddr= "192.168.1.100"netmask= "255.255.255.0"Second, modify the gatewayVi/etc/sysconfig/networkNetworking=yesHostname=aarongateway=192.168.1.1Third, modify the DNSThe configuration file is below

When doing network service, it is necessary to write concurrent service-side programs. The stability of the front-end client application is partly dependent on the client itself, and more depends on whether the server is fast enough and stable enough.The common Linux concurrent Server model; Multi-Process Concurrent server Multi-threaded Concurrent server Select multi-channel I/O transf

Linux network settings (on) I. Internet addressing Process 1. Comparison of TCP/IP and OSI Reference Models TCP/IP physical layer: Nic OSI physical layer: Nic OSI data link layer: MAC address Network Layer: IP, ICMP, ARP Transport Layer: TCP, UDP TCP/IP application layer: SSH, Apache OSI Session Layer: client-server OSI presentation layer: Data Encryption and Co

Common Linux Network Tools: Http stress testing AB and linux stress testing The full name of AB is Apache stress, which is a self-built Network stress testing tool of Apache. Compared with LR and JMeter, AB is the simplest and most common Http stress testing tool I know. The AB command has very low requirements on the

; structsockaddr_in client_addr; memset (AMP;CLIENT_ADDR,0,sizeof(CLIENT_ADDR)); size_t Client_addrlen=sizeof(CLIENT_ADDR); CLIENTST= Accept (St, (structSOCKADDR *) client_addr, Client_addrlen); if(CLIENTST = =-1) {printf ("Accept failed! Error message:%s\n", Strerror (errno)); GotoEND; } //recv Message Charbuf[1024x768] = {0 }; intMflag =0; //Open the file streamFILE * PFA =NULL; PFA= fopen ("/home/test/2/1.dat","a"); if(PFA = =NULL) {printf ("Open the file failed! Error message:%s\n", St

Model one: The blocking model---process inefficient; low CPU utilizationModel two: Non-blocking model---process efficiency, but low CPU utilization;Model Three: multiplexed I/O model---increased CPU utilizationThought: The system wakes up the process for any socket descriptor event, so it does not need to be CPU-dependent for polling;Typical applications for I/O multiplexing are as follows:(1) When a customer processes multiple descriptors (typically

To establish a secure Linux server, you first need to understand the meaning of the configuration files that are related to the network service and how to configure them securely in the Linux environment. In a Linux system, TCP/IP networks are configured with several text files, and you may need to edit these files to

One of the biggest features of Linux is its network stack. It was originally originated from the BSD network stack and has a very clean set of interfaces, which are well organized. Its interfaces range from protocol-independent layers (such as general Socket Layer interfaces or device layers) to specific layers of various net