pacemaker hacking

Os:rhel 6.5 64bitcorosync:1.4.7--yum Mode installationpacemaker:1.1.2--Automatic installation as a Corosync dependency packPacemaker is the product of heartbeat development to 3.0 independent, Red Hat 6.0 series, using Yum to install Corosync, the default is to install Pacemaker as CRM.Pacemaker Common Configuration tool: Crmsh PCsCrmsh need to install RPM packages independentlyMain configuration files:/etc/corosync/corosync.conf/etc/crm/crm.confExper

resource management function and cannot form a cluster independently.2, Corosync IntroductionCorosync was originally used only to demonstrate an application of the Openais Cluster Framework interface specification, which can be said to be part of the Openais, but the latter is clearly beyond the official original idea, and more and more vendors are trying to use Corosync as a cluster solution. The RHCs cluster suite, such as Redhat, is based on the Corosync implementation.Corosync only provides

After MySQL migrated to Azure, due to the nature of the cloud, the method of ha in the self-built data center of MySQL could not be deployed much on the cloud.This is mainly because the public cloud currently does not support: 1. shared storage; 2. Multicast;3. Vip. Shared storage, the Azure file service can partially resolve this issue, but given the performance issues, this scenario does not use File service; The main reason for multicast is that the cluster software needs multica

But in fact, the browser is far more than these, Firefox is divided into Firefox 1.5,firefox 2,firefox 3 Several major versions, IE7,IE6 also have several series, in addition to the two mainstream manufacturers of products, as well as opera, Konqueror,netscape,chrome and other series. These browsers, each has its own set, often in this operation is normal, where the operation is not normal. So the WD tore east to make up the West, finally can in several browsers are normal. As a result, the pro

1. Environment IntroductionOS: centos 6.5Kernel: 2.6.32-431.11.2.el6.x86 _ 64Node1: nginxha001 10.0.15.31 MasterNode2: nginxha002 10.0.15.32 SlaveVip: 10.0.15.30Note: drbd is used in this example. For installation of mysql, corosync, and pacemaker programs, see other materials. Both programs must be installed. drbd resources can be copied to the other one after configuration is completed on one platform. Both drbd resources must be created to create d

650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M01/37/C6/wKioL1OvrZKw1D9-AAEDaobD9Aw534.jpg "Title =" 1.jpg" alt = "wKioL1OvrZKw1D9-AAEDaobD9Aw534.jpg"/> Lab platform: Centos 1, 6.4 Functions: Use corosync + pacemaker + drbd to achieve high availability of the lamp platform, and install the discuz forum for testing. Tutorial steps: 1, Synchronize the hosts files of both parties and add the parsing of node6 and node7 10.32.9.56 node6 10.3

; "style =" border-right-0px; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px "Title =" clip_image014 "border =" 0 "alt =" clip_image014 "src =" http://img1.51cto.com/attachment/201409/14/8914310_1410702726Kqpq.jpg "width =" 244 "Height =" 47 "/> After completion, define crmsh to put the crmsh RPM package under files. 650) This. width = 650; "style =" border-right-0px; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px "Title =" clip_image016 "borde

the system to find out the inconsistency or conflict between the software and the definition of the system. Differences: First, their test methods are different: Unit testing is a white box test; Integration testing is a gray-box test; System testing is a black box testing. Second, they have different scope of study, that is, their testing focuses are different: Unit testing mainly tests the data structure, logic control, and exception handling within a unit; The integration test mainly tes

1 Start the Docker service, which causes the running Docker to error if the Docker service stops, without switching2 Prepare the same image file on each node3 pcs resource Create My-docker1 docker image= "Index.alauda.cn/library/tomcat:9" name= "My-docker" run_opts= "-P 8,888:8,080 "4 Setting up PCs constraint colocation add my-docker1 VIP1 INFINITYThis article is from the "old section of the Cultivation of Life" blog, please be sure to keep this source http://031028.blog.51cto.com/9866455/18370

Operation thinking: Through the DRBD to achieve data synchronization, through the Corosync+pacemaker (hereinafter referred to as CP) to detect failures and transfer, only one of the normal state of work, the other only to detect and synchronize data, when there is a failure, Server2 automatically take over all business, and synchronizing the data to another (of course, it doesn't have to sync successfully at this point ...). This is illustrated below:

actually eventually starts the service by invoking the service's resource agent.Messaging layer, CRM, RA these three levels are AIS family to achieve the three basic level of cluster function;Summarize:Messaging Layer main role: through the configuration of the interface and address and mode, to complete the heartbeat and transaction information transmission of the cluster;CRM role: For non-ha-aware (can not directly communicate with the message layer) program to provide the middle tier, becaus

Tags: pacemaker corosync pcsExperimental purpose: Using Corosync as the cluster message transaction layer (massage layer), pacemaker as the cluster resource Manager (Cluster Resource Management), PCs as a management interface tool for CRM. Requires the implementation of HTTPD's high-availability features.Environment: CentOS 6.9pacemaker:1.1.15corosync:1.47pcs:0.9.155Preparatory work: Configure SSH

Tags: haproxy mariadb pacemaker CorosyncThe highly available solution keepalived just provides the simplest high-availability features, and the truly advanced features keepalived difficult to complete. Openais specifications provide a complete solution, but a lot of the weight of many features considered comprehensive, very detailed, to understand these we can be more in-depth understanding of the complete system of high availability, when encounterin

: Drbdadm----Overwrite-data-of-peer primary MySQL, making this VM a primary for the DRBD group. When you view the status of DRBD by Drbd-overview, you can see that two disks are synchronizing at this time:0:mysql/0 syncsource primary/secondary uptodate/inconsistent C r-----???? [A]. ..... ......... Sync ' ed:0.6% (20372/20476) MThe format is now on the master node: mkfs.ext4/dev/drbd0?At this point, the DRBD installation configuration is complete. At this point, you can only mount this DRBD disk

#!/bin/sh## ti Processor SDK Linux am335x EVM/bin/setup-minicom.sh hacking# Description: # This article mainly on the TI SDK in the setup-The minicom.sh script is interpreted in order to understand # its working mechanism. ## .-4- -Shenzhen Nanshan Ping Shan Village Zengjianfeng # This distribution contains contributions or derivatives under copyright# asfollows:## Copyright (c) ., Texas Instruments incorporated#

#!/bin/sh## ti Processor SDK Linux am335x EVM/bin/commom.sh hacking# Description: # This article mainly explains the common.sh script in TI's SDK, in order to understand its working mechanism. ## .-4- -Shenzhen Nanshan Ping Shan Village Zengjianfeng # This distribution contains contributions or derivatives under copyright# asfollows:## Copyright (c) ., Texas Instruments incorporated# All rights reserved.## redistr

find the source RPM package, you can leave a message for me. RPM-IVH epel-release-6-5.noarch.rpm #安装 163 Source: wget Http://mirrors.163.com/.help/CentOS6-Base-163.repo 2. Set Pacemaker Source: Vi/etc/yum.repos.d/centos.repo #贴入如下内容 [Centos-6-base] name=centos-$releasever-base mirrorlist=http://mirrorlist.centos.org/?release= $releasever arch= $basearch repo=os Enabled=1 #baseurl =http://mirror.centos.org/centos/$releasever/os/$basearch/ 3

Src:http://www.blackmoreops.com/2015/07/15/download-hacking-team-database/?utm_source=tuicoolRecently controversial Italian security company Hacking Team, have been hacked and more than 400GB made it's a-to-world Wid E Web. Hacking Team is known for selling spyware to governments all around the world.Hacking Team is a milan-based information technology company th

Prevent hackers from hacking into the Windows system you are using When hackers invade a host, will find ways to protect their "labor results", so will leave a variety of back door on the broiler to a long time to control the broiler, which is the most used is the account hiding technology. Create a hidden account on the broiler for use when needed. Account hiding technology is the most hidden back door, the general user is difficult to find hidden a

attract visitors, However, I and the partner two people to now also think about how benign development, at least to make the server costs, unfortunately is free at the same time, we did not develop the way to add value. The above is a simple process introduction: Say some of my thoughts and sighs during this period: 1. Hackers ' stations are vulnerable to attack. Of course, all I've come across is nothing to destroy. All of these became friends later. I feel that the wicked are still few.