net ipv4

How does Linux automatically load modules when the system is started-Linux general technology-Linux programming and kernel information, the following is a detailed description. To find out how to automatically load modules when the system starts, I

First, the working principle of load balancing in tunneling mode: when the client accesses the director machine, the director machine sends the client request to the real server, and then the real server directly responds to the request response

Php startup error solution: php startup error: [root @ abclnmp] # servicephp-fpmstartStartingphp-fpmeAccelerator: failed, themaximumsizethekernelallowsis php startup error solution The following error occurs when php is started: [root@abc lnmp]#

Deployment and implementation of LVS + keepalived + nginx + tomcat in CentOS # Node Distribution LVS-dr-master Eth0: 192.168.146.141 LVS-dr-slave Eth0: 192.168.146.142 Nginx1: Eth0: 192.168.146.139 Nginx2: Eth0: 192.168.146.140 Tomcat1: Eth0: 192

Reproduced below:Get readyL System: CENTOS6 (three)L Load Balancer: LVS + keepalivedL Server 1:httpL Server 2:httpIP configuration1. VIP (virtual IP): The IP address used to provide the virtual Server service. are bound on the director of a physical

For high-concurrency Squid servers in Linux, the number of TCPTIME_WAIT sockets often reaches two or 30 thousand, and the server is easily dragged to death. By modifying Linux kernel parameters, you can reduce the number of TIME_WAIT sockets on the

Recently in research load balancing. The KEEPALIVED+LVS model is currently being studied.1. Software IntroductionKeepalived: As the name implies is to maintain survival, often used to build high-availability equipment, to prevent the business core

The recent performance comparison test of the LVS cluster approach has encountered some strange problems in configuring the IP tunneling mode:1) After stopping the LVS service, the virtual IP is not released (it seems that only restart the server

Linux system ArchitectureA, ha cluster configuration1. Installing Heartbeat[[email protected] ~]# vim/etc/hosts//Configure hosts10.30.4.146 Master10.30.4.140 slave[Email protected] ~]# RPM-IVH

  For high-concurrency Squid servers in Linux, the number of TCP TIME_WAIT sockets often reaches two or 30 thousand, and the server is easily dragged to death. By modifying Linux kernel parameters, you can reduce the number of TIME_WAIT sockets on

Article Title: Adjustment of Network Security Options. 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

For high-concurrency squid servers in Linux, the number of TCP time_wait sockets often reaches two or 30 thousand, and the server is easily dragged to death. By modifying Linux kernel parameters, you can reduce the number of time_wait sockets on the

Mysql HA-Install Keepalived + LVS + Mysql (dual master) On Redhat 6.3, keepalivedlvs Host information: Scheduling node: Name: lvsOS: Redhat 6.3IP: rule: 192.168.56.236 data node 1: Name: rule: Redhat 6.3IP: 192.168.56.230 data node 2: Name:

2 Linux LVS (Linux virtual Server) V1.26 load balancerConfiguration ideas: Install the LVS server install the kernel link kernel file on the LVS server and manually bind the VIP Configure the Realserver backend service to manually

NginX and Node. js are born on the topic of building high-throughput web applications. They are designed based on the event-driven model and can easily break through the C10K bottleneck of traditional web servers such as Apache. The preset

Sysctl. conf for learning and tuning, and sysctl. conf for tuning Reproduced in the short book: sysctl. conf learning and tuning. If you have any version problems, please contact mePreface Remember the first

4. Installation Configuration LVS4.1 Preparation workAddress planning: Server name IP Address Gateway Virtual device Name Virtual IP Director Server 192.168.98.75 192.168.98.1 eth0:0

NginX and Node. js are born on the topic of building high-throughput web applications. They are designed based on the event-driven model and can easily break through the C10K bottleneck of traditional web servers such as Apache. The preset

I. What is Squid? Squid is a software used to buffer Internet data. In this way, it implements its function by accepting requests from the target (object) that people need to download and processing these requests as appropriate. That is to say, if

We recommend a good iptables-shell script to free you from the troublesome iptables configuration. I am not sure who the script author is, so I deleted the version declaration. system: centos5.9 script content: viiptables. sh #! /Bin/sh # -----------