f5 firewall load balancing

, the session problem, such as when I log in Server1, the next dynamic server group after polling may be assigned to SERVER2, will cause to log back in. The workaround is to configure the polling rule to hash according to the IP requested by the user, and then assign the corresponding server. The specific configuration is as follows:Upstream dynamic{Ip_hash; server 127.0.0.1:8080; server 192.168.0.203:8080;}This enables a user to have a single server node. This will not have the problem of dupli

LB: Load Balancer ClusterLoad Balancer:HardwareF5,big IP(Citrix) Think NetscalerA10SoftwareFour tiers: LVS (Linux Virtual Server)Layer Seven (reverse proxy):NginxHttp,smtp,pop3,imapHaproxyHttp,tcp (MYSQL,SMTP)Cluster serviceLvs:director (front end), Realserver (back end)LVS structure and Firewall (netfilter) similar, LVS work on the input chainLvsIpvpsadm: Administrative Tools for user space (similar to ipt

/arp_ignoreEcho 2 >/proc/sys/net/ipv4/conf/all/arp_announce/sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up/sbin/route add-host $VIP Dev lo:0;;Stop# Stop LVS-DR Real Server loopback device (s)./sbin/ifconfig lo:0 Downecho 0 >/proc/sys/net/ipv4/conf/lo/arp_ignoreecho 0 >/proc/sys/net/ipv4/conf/lo/arp_announceecho 0 >/proc/sys/net/ipv4/conf/all/arp_ignoreecho 0 >/proc/sys/net/ipv4/conf/all/arp_announce;;Status# Status of Lvs-dr Real server.Islothere= '/sbin/ifconfig lo:0 | grep $

ASA/PIX: Load balancing between two ISP-options VERSION 7 Is it possible to load balance between two ISP links? Does the ASA support PBR (Policy Based Routing )? Does the ASA support secondary IP address on interfaces? What other options do we have? SLA RouteTracking PBR on the router outside the firewall Allowing outb

/nginx_upstream_hash-master \ -- Add-module =/home/TSP/nginx/plugin/nginx-sticky-module-master \ -- Add-module =/home/TSP/nginx/plugin/ngx_pagespeed-master # Make make install The nginx directory structure after installation is complete: [[Email protected] nginx-1.6.0] # ll/usr/local/nginx/ Total 16 Drwxr-XR-x 2 root Root 4096 Jun 24 Conf Drwxr-XR-x 2 root Root 4096 Jun 24 14:42 html Drwxr-XR-x 2 root Root 4096 Jun 24 logs Drwxr-XR-x 2 root Root 4096 Jun 24 sbin 2. Modify the listening port in

:80-r192.168.111.101-m-w1 ipvsadm-a-t172.16.111.123:80-r 192.168.111.102-m-w1//Configuring the Web service backend realserver to nat mode of operation, Weights for 1vim/etc/sysctl.conf Modify netipv4.ip.forward=1// Turn on route forwarding (3) Configure Configure Gateway on realserver to point to 192.168.111.2000 Disadvantages : the NAT operation mode of LVS, whether the request packet or the response packet will pass through the director Server, and the response packet will usually carry a

The Linux LVs load Balancing is mainly used to improve the processing power of the server, improve the corresponding ability of the server, improve the concurrency processing ability, and reasonable resource allocation. Address translation: referred to as NAT mode, similar to the firewall of the private network structure, the

]‘192.168.1.%‘IDENTIFIED BY‘123456‘;Query OK, 0 rows affected (0.07 sec)mysql> FLUSH PRIVILEGES;Query OK, 0 rows affected (0.04 sec)To test from the server:Slave:[[emailprotected] ~]# mysql -uroot -p123456 -h192.168.1.112 --port=4040This will connect to the Mysql-proxy server, if an error occurs: 2003 (HY000): Can ' t connect to MySQL server on ' 192.168.1.112 ' (113), please modify the firewall configuration or shutdown. Let's implement the read and

I. Environmental planning650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/73/53/wKiom1X6SEax6HlpAAEImIcTpPA588.jpg "title=" planning. png "alt=" Wkiom1x6seax6hlpaaeimictppa588.jpg "/> Operating system: CentOS6.5 x86_64 Kernel version: 2.6.32-504.el6.x86_64 Nginx Version: nginx-1.8.0-1.el6.ngx.x86_64 Keepalived version: keepalived-1.2.19 Front-end dual Nginx+keepalived,nginx reverse proxy to back-end tomcat cluster to achieve

Background: Load balancing was implemented with Nginx and two Tomcat, and Tomcat ports (8080 and 8090) were closed in the firewall, and only 80 ports were opened externally. The Nginx configuration is as follows: Upstream Tomcatcluster { Server : 8080; Server : 8090; } Server { Listen 80; server_name dev.xjj.cn ...... Location/{ ......

Main open source software LVs, keepalived, Haproxy, Nginx, etc.The LVS belong to 4 layer (network OSI 7 layer model), Nginx belongs to 7 layer, Haproxy can be considered as 4 layer, can also be used as 7 layerThe Keepalived load balancing function is actually the LVSLVS This 4-tier load balancer can distribute other ports except 80, such as MySQL, while Nginx sup

). Director server modifies the source IP address to its own VIP address before responding to the client, and then responds to the client. At this time the source IP of the message is VIP, the target IP is CIP Environment Preparation: Server Ip Clients (client) 172.16.111.13 (Analog public network address) Virtual Services (VS) 172.16.111.123 (Analog public network address)192.168.111.200 (Intr

Linux keepalived + LVS implements mysql slave database load balancing and keepalivedlvsPrerequisites: Reference link: Http://www.osyunwei.com/archives/7464.html Ps: the above are the main references for this operation. I am very grateful for the contributions made by the author of this article. The main purpose of my essay is Describes some problems and supplements encountered during the deployment of the a

Nginx reverse proxy and load balancing implementation process First install nginx . Time synchronization between nodes [Root @ nginx ~] # ntpdate 202.120.2.101[root@web1 ~]# ntpdate 202.120.2.101[root@web2 ~]# ntpdate 202.120.2.101 6. Disable firewall and SELinux Root @ nginx ~] # service iptables stop[root@nginx ~]# chkconfig iptables off[root@nginx ~]# getenfor

Kubernetes about the service exposure is mainly through the Nodeport way, through the binding minion host of a port, then the pod request forwarding and load balancing, but this way the defect is The service may have many, if each is bound to a node host port, the host needs to open the perimeter of a heap of ports to make services calls, management confusion Cannot apply

Tags: Server firewall client software Server Load balancer Service 650) This. width = 650; "src =" http://img1.51cto.com/attachment/201411/6/4484443_1415238716mBOV.png "/> The firewall is disabled in the experiment environment. The server Load balancer service requires four servers. The local server is the clie

Poor performance can be Linux testLinux systems can test Curl 192.168.239.110 with another machine (assign 1 real1,1 times real2)If you need to modify the script (assigning weights or other), then execute the script will be error, because the current face executed script, Eth0 has been generated, so DIRECOTR on vim/usr/local/sbin/lvs_dr.sh//Add Red commandRe-execute sh/usr/local/sbin/lvs_dr.shDirector Ipvsadm-ln can view rules and curl test rules are in effectThis article is from the "11657691"

:: 1/128 Scope HostValid_lft Forever Preferred_lft Forever2:eth0: Link/ether 00:0c:29:af:00:4e BRD FF:FF:FF:FF:FF:FFinet 192.168.0.130/24 BRD 192.168.0.255 Scope Global eth0inet 192.168.0.150/32 Scope Global eth0Inet6 FE80::20C:29FF:FEAF:4E/64 Scope linkValid_lft Forever Preferred_lft ForeverStop keepalived:/etc/init.d/keepalived stop on the primary server and then check from the server to see if it is already tiedVirtual IP (VIP):[[Email protected]_back ~]# IP Addr1:lo: Link/loopback 00:00:00:0

Step1: Three Web Server Environment configuration: iptables-f; Setenforce 0 shut down the firewall; close SetlinuxStep2: Three Web server install softwareSTEP3: Host modification configuration file: vim/usr/local/nginx/conf/nginx.confProxy Server Modify the file: Modify the port, the port can be set by itself, do not change the default is OK, but the corresponding matchFor test needs, change the HTML files for the three Nginx machines:Mv/usr/local/ngi

实现负载均衡,修改配置文件配置nginx实现动静分离[[emailprotected] ~]# vim /usr/local/nginx/conf/nginx.confupstream web { server 192.168.55.130:8080; server 192.168.55.130:8081;}定义好upstream后，需要在server段内添加如下内容 location ~* \.(do|jsp)$ { proxy_pass http://web; } location ~* tomcat\.(png|css)$ { proxy_pass http://web; } location / { root html; index index.html index.htm; }修改完配置文件检查语法错误，并重启服务[[emailprotected] ~]