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In Linux, dual-Nic binding technology achieves load balancing and failure protection (in Centos5 and Centos6). maintaining high server availability is an important factor in the enterprise IT environment. The most important thing is the high availability of server network connections. NIC binding helps ensure high availability and provide other advantages to impr
to ensure that the ARP response destined to the peer is not blocked by the switch.Necessary:The condition 1:ethtool supports obtaining the rate of each slave;Condition 2: The underlying driver supports setting the hardware address of a device so that there is always a slave (curr_active_slave) using the hardware address of bond, while ensuring that slave in each bond has a unique hardware address. If the Curr_active_slave fault, its hardware address will be newly elected to the Curr_active_slav
:0c:29:34:7a:54Slave queue ID: 02.6. Verification Test Physically turn off a network card (unplug the network cable) # before closing, the rate is 2000mb/s$ ethtool bond0settings for bond0:supported ports: [] Supported link Modes:not reported supported pause frame use:no Supports auto-negotiation:no advertised link Modes:not rep Orted advertised Pause frame use:no advertised Auto-negotiation:no speed:2000mb/s duplex:full Port:oth Er p
-based configuration file, which uses the SQLJEP syntax to write rules that are simpler than the LUA script -based MySQL proxy).The amoeba is equivalent to a SQL-requested router that provides mechanisms for load balancing, read-write separation, and high availability, rather than fully implementing them. Users need to use a combination of MySQL replication and o
/arp_ignoreecho "2" >/proc/sys/net/ipv4/conf/all/arp_announceRun the above script separately after the browser testAfter refreshFour keepalived +lvs Before we tried the load balancing of the LVS NAT and Dr Two models, keepalived could not only be highly available based on the VRRP (Virtual Router redundancy Protocol) protocol, but he was inherently integrated wit
Bind two network cards, share one IP, realize the redundancy effect. In fact, there are 7 types of bindings for Linux dual NICs: The mode=0 indicates that load balancing (round-robin) is balanced, and both NICs work. mode=1 says Fault-tolerance (active-backup) provides redundancy, working in a master-slave way, which means that only one NIC works by
of hacker attacks. Based on this, the border router should be the object that the network administrator should focus on maintenance. The initial basic design idea of load balancing is that a common server can handle up to tens of thousands of to hundreds of thousands of requests per second and cannot process millions or even more requests in a second. But if yo
Article Title: RouterOS dual-line load balancing. 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. How to install routeros-ros dual-Line Load
configuration file: VI ifcfg-eth0DEVICE = eth0 # Userctl = No Bootproto = none Onboot = Yes Master = bond0 Slave = Yes The ifcfg-eth1 also adds two lines in red,/etc/rc. ifenslave bond0 eth0 eth1 in local can be omitted. test the effect on a virtual machine. ping the IP address we just set from another machine, and then under the Virtual Machine VMWare, click one of the network cards to select disconnect (disconnect) we can see that ping only returns to normal after two times out. it indicates
Lvs+keepalived+nginx enables dual-machine hot standby load balancing, which is a highly available load balancing deployment commonly used in the enterprise. Its network topology is as follows: , using lvs+keepalived to load t
1. Notes In the "Keepalived implementation of Tomcat dual-standby" in the main describes how to install and configure Keepalived to achieve dual-machine hot standby, the main function is: Master and backup two servers in the hot standby state, the user virtual an IP, shielding the real IP address of the bottom, Users access the current master server through virtual IP, and when the master server is down or
Router and load balancing and Implementation ideas of Service hosts (1) Router introduction and demonstration The routing function of the WCF middleware is to add an intermediary service between the client and the server to forward messages between them. To Implement Message forwarding, you can modify the content of t
MySQL dual master architecture, which is supplemented by load balancing devices, can achieve the MySQL database load balancing high performance and high availability, load balancing dev
Balancing (round-robin)MII Status:upMII Polling Interval (ms): 0Up Delay (ms): 0Down Delay (ms): 0Multicast Mode:all SlavesSlave interface:eth1MII Status:upLink Failure count:0Permanent HW addr:00:0e:7f:25:d9:8aSlave Interface:eth0MII Status:upLink Failure count:0Permanent HW addr:00:0e:7f:25:d9:8bLinux under the network Cabondine technology not only increased the reliability of the server, but also increased the available network bandwidth, to provi
Article title: Dual-Nic binding technology in Linux for load balancing. 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. Maintaining the high availability of servers is an important factor in the enterprise IT environment. The
process dies and immediately switches the standby server, the switch time does not feel.Load Balancing:The upstream default is a poll-based load balancing method, in which each request is assigned to a different backend server in chronological order, and can be automatically rejected if the backend server is down. Another way is Ip_hash: Each request is allocated according to the hash result of the access
MySQL main standby switchThe database consists of a primary server and a backup server, which is run concurrently and synchronized to the backup server immediately after the master server has data changes. In daily operations, in order to anticipatory, the switch operation only needs to replace the IP of the database server in the connection pool with the IP of the backup server. Nginx High-Performance HTTP and reverse proxy service, can realize the primary and standby switching work.Dual-Machin
Nginx + Keepalived load balancing high availability (dual-machine Hot Backup)Nginx + Keepalived load balancing high availability (dual-machine Hot Backup)1.1 Nginx installation and configuration1.2 install and configure Keepalived
Nginx + keepalived for dual-machine hot standby and tomcat Load Balancing Environment Description: nginx1:192.168.2.47nginx2:192.168.2.48tomcat1:192.168.2.49tomcat2:192.168.2.50vip:192.168.2.51 I. nginx Configuration1. Install the PCRE Library required by nginxWget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.10.tar.gz tar -zxvf pcre-8.10.tar.gzcd
/90/wKiom1Nkl9uBLSLkAAI7Nv82x7o994.jpg "title=" 111. PNG "alt=" wkiom1nkl9ublslkaai7nv82x7o994.jpg "/>Keepalived 2:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/25/90/wKioL1Nkl--RJs-GAAHu-Fe95vg162.jpg "title=" 222. JPG "alt=" wkiol1nkl--rjs-gaahu-fe95vg162.jpg "/>Let's simulate the first haproxy stop, and then look at the VIP will be all the way to keepalived 2:[[Email protected] ~]# service haproxy stopstopping haproxy: [ OK ]View keepali
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