Today, a colleague came to me and said that their new website ulinux.img.bkjia.com.cn could not be accessed. The Code returned from the page was a test machine. My first response was a DNS resolution problem and dig was normal, no request for the header ulinux.img.bkjia.com.cn is sent when you log on to the backend web packet capture service. I caught a lot of results on the testing machine that my colleagues said.
At this time, the haproxy rule shou
Apache, Nginx and other reverse proxy (forwarding) function, usually only for the HTTP protocol, the other Protocol is not good (note: Nginx is said to be commercial version, support TCP protocol).Haproxy can compensate for this shortcoming, haproxy support http/tcp a variety of protocols, can be used as RPC (THRIFT/GRPC/AVRO) framework front-end load balancer forwarding middleware, the following describes
"Install Haproxy under CentOS"sudo yum install HaproxyEditing a configuration file vim/etc/haproxy/haproxy.cfg#---------------------------------------------------------------------# Example configuration for a possible web Application. See the# full configuration options online.## http://haproxy.1wt.eu/download/1.4/doc/configuration.txt##------------ -----------
from:http://www.oschina.net/news/53070/haproxy-1-5-0After 4 years of unremitting efforts,HAProxy 1.5.0 finally released!Compared to version 1.4, the 1.5 version includes many new features and performance improvements:
Native SSL support for SNI/NPN/ALPN and OCSP stapling;
Support IPV6 and UNIX sockets;
Full HTTP keep-alive to better support of NTLM and improved efficiency in static farms;
http/1.1
This was done before Percona XtraDB Cluster (Configuration See linkhttp://hans925.blog.51cto.com/542170/1607157)Now with Haproxy to Percona XtraDB cluster do load balancing, machine or those two machines, (originally do load balancing three machines, but personal notebook run two virtual machine on a bit card, so it used two). The haproxy was installed on the first Percona.HaproxyOs:ubuntu 14.04 Server ip:1
HAproxy allows backend RS to record real IP addresses
# Let RS record the real IP address of the client
#1. Add the following parameters to haproxy. cfg.
Listen www...Option forwardfor# If the backend server needs to obtain the real ip address of the client, the parameters must be placed in the listen module.
#2. If apache is used, add the following parameters.
LogFormat "\" % {X-Forwarded-For} I \ "% l % t
Haproxy installed on CentOS 7, the log is not logged by default. You need to do a configuration to log the logs.1. Create a log file/var/log/haproxy/haproxy.logCd/var/logsudo mkdir haproxycd haproxysudo touch haproxy.logsudo chmod a+w haproxy.log2. Turn on the Rsyslog haproxy logging functionEdit the/etc/rsyslog.conf file to$ModLoad Imudp$udpserverrun 514The # be
How to install Apache,mysql,php,nginx,haproxy on Ubuntu and how to install lamp on DockerTo install lamp on Ubuntu:Https://help.ubuntu.com/community/ApacheMySQLPHPHttps://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntuhttp://www.maketecheasier.com/setting-up-a-lamp-server-in-ubuntu-hardy-heron/Https://www.howtoforge.com/ubuntu-lamp-server-with-apache2-php5-mysql-on-14.04-ltsHttp://ubuntuserverguide.c
As mentioned earlier, using Nginx to implement multi-domain name certificate HTTPS (http://fengwan.blog.51cto.com/508652/1719708), by recompiling the Nginx implementation of TLS SNI support Open, So how do you use Haproxy?Requirements:Haproxy must be more than 1.5 versionsFirst step: Installation of OpenSSLTar zxf openssl-0.9.8zh.tar.gzcd openssl-0.9.8zh./config enable-tlsext--prefix=/usr/local/openssl no-sharedmake make install_sw# above installatio
Operating system: CentOS 6.5 haproxy software version: haproxy-1.4.24 nginx software version: nginx-1.6.2Haproxy is a popular cluster scheduling tool, previously mentioned Nginx upstream module can also realize the load balance of the cluster, but Nginx can not perform health checks on the nodes, performance is not haproxy goodCommon scheduling algorithms for loa
: This article mainly introduces the summary of the lvs, nginx, and haproxy transit modes. if you are interested in the PHP Tutorial, refer to it. Lvs, nginx, and haproxy are the three most common high-availability load balancing software. Since lvs and haproxy are not used in the current company's current network environment, even though they have been easy to u
the configuration file involved is as follows 1) /etc/haproxy/haproxy.conf//This is the main configuration file for the Haproxy program, The specific path can be arbitrarily specified, mainly the following sentence log NBSP;NBSP;LOCALHOSTNBSP;NBSP;NBSP;LOCAL0NBSP;NBSP;2) /etc/rsyslog.conf //This configuration file does not move, the default will have the following settings, will read the /etc/rsyslog.d/*.co
1. Server192.168.9.34 Haproxy--->haproxy192.168.9.35 Service1--->nginx192.168.9.36 Service2--->nginx+tomcat2. Haproxy load Balancing on the Web#---------------------------------------------------------------------# Example configuration for a possible web Application. See the# full configuration options online.## http://haproxy.1wt.eu/download/1.4/doc/configurat
Issue background:Before our company due to DDoS attacks caused by network exports, after understanding, traffic into the Amazon is no money, and unlimited traffic, in order to strengthen the protection of network attacks on the business impact, in the Amazon to deploy a set of Haproxy agent, the part of the business migration trial.650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M01/83/1F/wKioL1drZeyxEL5mAAA1K9OBwBc668.png-wh_500x0-wm_3 -wmp_4-
1. Introduction to HAproxy
HAproxy is a high-performance proxy server. It provides Lay4 and Lay7 proxies, featuring Healthcheck, Server Load balancer, and access control. It can support tens of thousands of concurrent connections with excellent performance. In addition, the HAproxy operating mode enables it to be easily and securely integrated into the current ar
Haproxy implements reverse proxy and load balancingReverse Proxy Server features: web Cache (acceleration), reverse proxy, content routing (forwarding requests to specific servers based on traffic and content types), Transcoder cache: reducing redundant content transmission; reduces bandwidth and network bottlenecks, reduces request pressure on the original server, and reduces transmission latency. Public cache can be used by everyone, for private cac
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