Simple Management of haproxy configuration files,
Version: python3Function: simple query, add, and delete haproxy configuration files.Procedure:1. Select the appropriate options as prompted2. After Entering the selected option, write the corresponding parameters as prompted.3. the query function returns the query result. The add, delete, and rollback functions are not displayed.
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Introduction: The difference between LVS and HaproxyLvs:1, strong anti-load capacity, is the work in the Network 4 layer on the distribution only, no flow generation;2, no flow, to ensure that the performance of the Equalizer IO will not receive the impact of large traffic;3, the application of a wide range, because LVS work in the 4 layer, so it can almost all applications to do load balancing4, the work is stable, because of its own resistance to load capacity is very strong, self has a comple
HAProxy "http_request_forward_body ()" Integer Overflow Vulnerability
Release date:Updated on:
Affected Systems:Haproxy 1.5.xDescription:CVE (CAN) ID: CVE-2014-6269
HAProxy is a TCP/HTTP Load balancer.
In versions earlier than HAProxy 1.5.4, when processing the "start of value" variable in the HTTP message structure, the "http_request_forward_body ()" functio
The haproxy-1.4 version agent is always used, and SSL configuration is not supported, the haproxy-1.5 version is supported, so the version is updated for testing. You can use the original Apache SSL Certificate file for simple processing on haproyx.Originally intended to use haproxy-1.4 penetration, but to back-end servers to configure SSL, so configured on the H
The current development trend of the website for the use of network load balancing is as the scale of the website increases according to different stages to use different technologies:One is through hardware. Common Hardware includes expensive NetScaler, F5, radware, array, and other commercial load balancers, it has the advantage of a professional maintenance team to maintain these services. The disadvantage is that the cost is too large. Therefore, it is not required for small network services
Because the company needs to be on-line HTTPS, so for HTTPS need to do stress testing, using the same encryption strength of the certificate, respectively, Haproxy and nginx to do stress testing, and then CPU usage comparison:The following are 1000 request stress tests for the same URL and background server:First time Haproxy 1000 times HTTPS pressure test650) this.width=650; "src=" Http://s2.51cto.com/wyfs
Description: The following references the contents of the sixth chapter of "Building a highly available Linux server" Fuqin.It is relatively simple to build a high-availability environment for load balancing, mainly to understand the principles. This article describes the pros and cons of three load balancers so that they can be used in real-world production applications by demand.At present, the online environment in the application of more load balancer hardware has F5 big-IP, software has Lvs
Next blog Address http://lee90.blog.51cto.com/10414478/1825478In the previous blog post, we used only one slave node.in the actual production environment, we must have multiple slave The node is responsible for reading the database. Let's say we have a well-configured slave , IP to be 192.168.2.15 . So now the situation is:Master1 : 192.168.2.13Master2 : 192.168.2.14VIP : 192.168.2.100Slave1 : 192.168.2.11Slave2 : 192.168.2.15Web Server: 192.168.2.11Haproxy the installation configurationdemo us
HAProxy performance in high concurrency
After the xunqi message gateway server is migrated from Beijing to the Wuxi data center, after a text message is sent, only about 60% of the text message status reports are received.
After understanding the business logic, you can view the statistical status on the stats page of haproxy as follows:
In the red circle, we can see that the maximum number of sessions
GlobalLog127.0.0.1local0 chroot/var/lib/haproxy #chroot运行路径 pidfile/var/run/haproxy.pid #haproxy Process pid file Maxconn65535#默认最大连接数, you need to consider ulimit-N Limit user haproxy group Haproxy daemon #以后台形式运行harpoxy tune.s SL. default-dh-param 2048 SSL-server- Verify none stats socket/var/lib/
the content of the specified container ip,-v refers to the local configuration of the Config.ini file, and then map it into the NDB_MGMD container Config.ini configuration content is as follows [NDBD DEFAULT]noofreplicas=2datamemory=80mindexmemory=18mDatadir=/usr/local/mysql/data [NDB_MGMD DEFAULT]Datadir=/var/lib/mysql-cluster [NDB_MGMD]Nodeid=1hostname=192.166.0.2 [NDBD]nodeid=10hostname=192.166.0.10 [NDBD]nodeid=11hostname=192.166.0.11 [MYSQLD]nodeid=100hostname=192.166.0.100 [MYSQLD]Nodeid=
Requirements DescriptionServer Description:HAProxy server:192.168.1.90web1:192.168.1.103web2:192.168.1.105Domain:tecadmin.netWhen the user accesses the: Tecadmin.net/blog link, it only jumps to the WEB2 (192.168.1.105) server.All other accesses will be redirected to the WEB1 or WEB2 server based on the weights.
Configuration fileGlobal Log127.0.0.1local0 Notice Maxconn50000daemondefaults Log global mode HTTP option httplog option Dontlognull contime
There is more http/ssh multiplexing on the web, but in the real world, with IIS load Balancing using Haproxy, 80 ports are required to use the Remote Desktop Management Server.Recently through the Wireshark grab packet, found the TPKT header field, finally successfully implemented RDP protocol multiplexing:Note: RDP typically uses TPKT as its transport protocol, and TPKT runs on top of TCP. When used to transmit RDP, the TCP port used is 3389, not the
NOTE: For the following content, refer to Chapter 6 of "building a high-availability Linux Server" of fuqin liquor. It is relatively simple to set up a high-availability server Load balancer environment, mainly to understand the principle. This article describes the advantages and disadvantages of the three load balancers so that they can be selected as needed in actual production applications. Currently, there are F5 BIG-IP, LVS, nginx and haproxy, a
Three major software load balancer comparisons (LVS, Nginx, HAproxy)(Information from the network, made part of the supplementary instructions)LVS:1. Strong anti-load capability, high performance, can reach F5 60%, low memory and CPU resource consumption2. Work in the Network 4 layer, through the VRRP protocol (for Proxy only), the specific traffic is handled by the Linux kernel, so there is no traffic generated.3. Stable, high reliability, self-perfe
It is relatively simple to build a load-balanced high availability environment, mainly to understand the principle. This article describes the advantages and disadvantages of three load balancers, so as to be in the actual production applications, according to the requirements of choice.At present, the online environment in the application of more load Balancer hardware F5 big-ip, software has Lvs,nginx and haproxy, high availability of software heart
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
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
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
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