3server

/sbin/ Modify the configuration file/etc/haproxy. cfgGlobalLog 127.0.0.1 local0Maxconn 409600Chroot/usr/local/share# Uid 501# Gid 501DaemonNbproc 1Pidfile/usr/local/haproxy/logs/haproxy. pid# DebugUltsLog globalMaxconn 100000Contimeout 500000Clitimeout 3600000Srvtimeout 3600000Option redispatchRetries 6Frontend mail.domain.comMode httpBind 0.0.0.0: 80Log globalOption tcplogRedirect location https://mail.domain.com/owaFrontend owa_443Mode tcpBind 0.0.0.0: 443Default_backend pool_443Log globalOpti

rewritebalance roundrobinserver app1_1 192.168.34.23:8080 Cookie App1inst1 Check Inter rise 2 fall 5server app1_2 192.168.34.32:8080 Cookie App1inst2 check Inter rise 2 fall 5server app 1_3 192.168.34.27:8080 Cookie App1inst3 check Inter rise 2 fall 5server app1_4 192.168.34.42:8080 Cookie App1inst4 C Heck Inter rise 2 fall 5listen appli2-insert 0.0.0.0:10002option httpchkbalance roundrobincookie serverid Insert Ind Irect nocacheserver inst1 192.168.114.56:80 cookie Server01 Check Inter fall

(host)-I etiantian.orgRedirect prefix http://www.etiantian.org code 301 if short_domain # ACL lang_domain HDR (host)-I www.etiantian.org# Use_backend staticpools if lang_domain Default_backend staticpools # Http://www.etiantian.org/nginx/... (HTM, HTML, CSS, JS)Backend staticpoolsBalance roundrobinServer oldboy-1 10.0.0.151: 80 check port 80 inter 3000 fall 3Server oldboy-2 10.0.0.151: 81 check port 81 inter 3000 fall

auth admin: Admin# Hide the haproxy version on the statistics pageStats hide-version########################### TCP connection monitoring configuration ######## ########################Listen TCP-inBind *: 2211Mode TCP# Logging optionsOption tcplogLog global# Backend servers# Weight -- Adjust the load on the server# Check -- allow health check on this server# Inter -- set the time between two consecutive health checks, in milliseconds (MS), default 2000 (MS)# Rise -- after specifying the number

Zookeeper cluster installation and configurationFirst introduce the basic configuration of zoo.cfg.ticktime=2000initlimit=10synclimit=5datadir=/datadatalogdir=/datalogclientport=2181electionalg=3server.1= 127.0.0.1:20881:30881server.2=127.0.0.1:20882:30882server.3=127.0.0.1:20883:30883Basic information for configurationticktime=2000: The basic time unit in milliseconds, other times such as heartbeat/timeout are integer multiples of the unit time;A mul

Pxc-backMode TCPBalance LeastconnOption HttpchkServer C1 192.168.70.71:3306 Check Port 9200 Inter 12000 rise 3fall 3Server C2 192.168.70.72:3306 Check Port 9200 Inter 12000 rise 3fall 3Server C3 192.168.70.73:3306 Check Port 9200 Inter 12000 rise 3fall 3Backend Stats-backMode httpBalance RoundrobinStats Uri/haproxy/statsStats Auth Pxcstats:secretBackend Pxc-onenode-backMode TCPBalance LeastconnOption Httpc

"#"/etc/haproxy/haproxy.cfg | Grep-v "^$"GlobalMaxconn 40000Ulimit-n 500000Log 127.0.0.1 local0 InfoUID 99GID 99Chroot/tmpDaemonDefaultsLog GlobalRetries 2Option RedispatchOption DontlognullOption HttpcloseBalance RoundrobinTimeout Connect 30000msTimeout Client 30000msTimeout Server 30000msTimeout Check 2000Listen Admin_statsBind 0.0.0.0:8080Mode httpStats Refresh 5sStats enableStats Hide-versionStats Realm Haproxy\ StatisticsStats Uri/haproxyStats Auth Admin:passwordListen puppetmaster *:8140M

^ (bbs.test.com|shequ.test.com|forum)Second, session holdHaproxy load balancing three ways to keep the client and server session:2.1 User Source IP identificationHaroxy the User IP is hashed and assigned to the fixed real server (similar to the Nginx IP hash command)Configuration directive Balance SourceBackend wwwMode httpBalance SourceServer Web1 192.168.0.150:80 check Inter rise 3 Fall 3Server WEB2 192.168.0.151:80 check Inter rise 3 Fall 32.2 Coo

.x86_64.rpm | 152 MB 01:41 warning: rpmts_HdrFromFdno: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEYRetrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysqlImporting GPG key 0x5072E1F5: Userid : MySQL Release Engineering Start mysql [root@localhost yum.repos.d]# service mysqld start　　Initializing MySQL database: [ OK ]Installing validate password plugin: [ OK ]Starting mysqld: 　　Enter mysql Security Mode [root@localhost yum.re

to another healthy server.Log 127.0.0.1 local0Retries 3 # Number of retriesMaxconn 32000Stats enableStats uri/haproxy-statsStats realm Haproxy \ Statistics # MessageStats auth admin: admin # User authentication/user name and passwordStats hide-version # hide version informationStats refresh 10 s # refresh timeContimeout 5000 # timeoutClitimeout 50000Srvtimeout 50000Listen appserver *: 80Hash-type consistentBalance uri len 100Option httpclose # enable passive http connection closureOption httpch

HTTP/1.0Server web1 172.20.27.90: 80 weight 5 check inter 2000 rise 2 fall 3Server web2 172.20.27.100: 80 weight 5 check inter 2000 rise 2 fall 3Start haproxy and run the following startup command:/Usr/local/haproxy/sbin/haproxy-f/usr/local/haproxy/etc/haproxy. cfg2. First install 172.20.27.50:2. 1. InstallTar zxvf haproxy-1.3.20.tar.gzCd haproxy-1.3.20Make TARGET = linux26 PREFIX =/usr/local/haproxyMake install PREFIX =/usr/local/haproxy2. Configura

branch of MySQL. It is mainly maintained by the open-source community and licensed by GPL. One of the reasons for developing this branch is that after Oracle acquired MySQL, there is a potential risk of closing the source of MySQL. Therefore, the community uses the branch method to avoid this risk. MariaDB is designed to be fully compatible with MySQL, including APIs and command lines, so that it can easily become a substitute for MySQL. Install mariadb. The size is 59 MB. [root@yl-web yl]# yum

shutting MySQL out of the source, so the community uses a branching approach to avoid this risk. MARIADB is designed to be fully compatible with MySQL, including APIs and command lines, making it easy to be a replacement for MySQL.Install MARIADB, size M.The relevant commands for the MARIADB database are:Systemctl Start mariadb #启动MariaDBSystemctl Stop mariadb #停止MariaDBSystemctl Restart MARIADB #重启MariaDBSystemctl Enable MARIADB #设置开机启动So start the database first[Email protected] yl]# systemct

: [Email protected]/]# systemctl start Mariadb.service Set power on auto start: [Email protected]/]# Systemctl enable Mariadb.service 1.3. Open the FirewallExternal access to MARIADB, such as Java and other links, requires 3306 ports, so open 3306 ports are required: [Email protected]/]# firewall-cmd--permanent--zone=public--add-port=3306/tcpSuccess where the permanent parameter sets the firewall to permanent.1.4. V

To prevent licensing mode from startingEdit/ETC/MY.CNF and add the following:Linux Environment: VI/ETC/MY.CNFAdd the following two lines to the [MySQL (and PHP collocation best combination) d] Configuration segment:User=mysqlSkip-grant-tablesSave to exit Edit.Restart Mysqld.Service mysqld RestartUse MySQL password-free connection, change password and password expiration flag;[[email protected] ~]# Mysqlwelcome toThe MySQL Monitor. CommandsEnd with;or\g.your MySQL Connection ID is

-increment rule to avoid duplication of master-slave synchronization IDauto_increment_increment=2 # Self-amplification factor (modified according to MySQL server number, in this case 2 MySQL servers)auto_increment_offset=2 # Self-increment offset (starting from 2)3. Restart MySQL service on Node1 and Node2 respectivelyRestarting the MySQL service on Node1[Email protected] ~]# systemctl restart mysqldRestarting the MySQL service on Node2[Email protected] ~]# systemctl restart mysqld4. Enter the M

. success! [[emailprotected] mysql]# mysql-uroot-p123456mysql: [Warning] Using a password on the command line interface can b E insecure. Welcome to the MYsql Monitor. Commands End With; or \g.your MySQL connection ID is 3Server version:5.7.18-log mysql Community Server (GPL) Copyright (c), Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names trademarks of their re

192.168.1.4, and then modify the/etc/haproxy/haproxy.cfg:Listen Rabbitmq_cluster 0.0.0.0:5672Mode TCPBalance RoundrobinServer Node1 192.168.1.1:5672 check Inter rise 2 Fall 3Server Node2 192.168.1.2:5672 check Inter rise 2 Fall 3Server Node2 192.168.1.3:5672 check Inter rise 2 Fall 34. Users and PermissionsBefore the formal application, we first create a vhost in RABBITMQ, add a user, and set the user's pe

reference:Httpd: syntax error on line 161 of/usr/local/apache2/CONF/httpd. conf: cannot load/etc/httpd/modules/mod_ldap.so into server:/etc/httpd/modules/mod_ldap.so: Undefined Symbol: ldap_simple_bind_s ### In the process of solving the problem, I began to suspect that there was a problem with the LDAP-related package. I found that there was a problem with the APR-util package on the Internet. ### Why? How can this problem be solved? Run./httpd-V to check the version! Server version: Apache/

create a database and a table. The table contains an AUTO_INCREMENT field that makes mysql-mmm troublesome and troublesome, by the way, add a user to access this database. [root@centos6 ~]# mysql -u rootWelcome to the MariaDB monitor. Commands end with ; or /g.Your MariaDB connection id is 3Server version: 5.5.33a-MariaDB MariaDB Server, wsrep_23.7.6.rXXXXCopyright (c) 2000, 2013, Oracle, Monty Program Ab and others.Type 'help;' or '/h' for help. Ty