vip server

Keepalived can build a high-availability service using multiple stateless single points, such as Keepalived+nginx,lvs,haproxy and memcached, through virtual IP (hereinafter referred to as VIP) drift. Its implementation is based on the VRRP protocol, including the core of the master campaign mechanism is agreed in the VRRP agreement.First, configuration instructions:The configuration of keepalived is located in/etc/keepalived/keepalived.conf, and the c

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Only VIP members can download the attachment on the article page. This method can help the website to be converted into members, which is also a great help for website operators, the following uses the official 2.7.2 default template as the basis to describe "how to restrict only VIP members to download relevant attachments on the document details page ".Assume that the

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This article describes the high availability of mysql master/master replication + keepalived (using VIP to access the database prompts that connection is not allowed), which has some reference value. let's take a look at it. Mysql master-master replication + keepalived high availability (using VIP to access the database prompts that connection is not allowed) _ MySQL ERROR 1130 (HY000): Host 'nginx-

lb when the VIP deletion, if the status of the VIP is error, then delete the underlying namespace in the tap device, there is a bug. If I later create the same IP VIP, it will not communicate properly because there are two tap devices with the same IP. Database tier:neutron/db/loadbalancer/loadbalancer_db.pyIf the driver is Haproxy, the code for the specific remo

In a previously done project, the pre-customer did not put forward the need for fixed IP features, customer application system has been launched after the customer put forward their public IP will change, resulting in the entire application paralysis, need to re-change the configuration file to use, where the customer's application can only identify IP, do not recognize DNS. Before encountering the requirements of their own to do is to add a virtual machine under the same cloud service in the sa

to the NFS archive target should be set as non-emphasizing archive. When the archiving operation on NFS is mandatory, if a network fault occurs, the NFS Installation Point is no longer available,The Archiving operation fails, which causes the database system to be suspended. | Under normal circumstances, the node application in the cluster will not be changed, and no subsequent configuration or changes are required. However, the srvctl tool also provides functions such as deleting, adding, and

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Tags: mysql high availability MHABut every MySQL DBA must have heard of MHA's high-availability program, and many companies have made MySQL highly available by doing two development of MHA. If MHA does not combine VIP, it is troublesome to change the configuration of the database with the program every time the main library switch. In the case of MHA+VIP, the VIP

. Set replication rights account on all hostsMysql>grant all Privileges on*.*to ' Sunney ' @ ' percent ' identified by ' Sunney ';Attention:(1), master_log_file= ' mysql-bin.000001 ', master_log_pos=112;These two names are used in Maste: Show Master status;(2), Master and slave Server-id is not the same, otherwise it cannot be synchronized successfully.Slave's Server-id can be modified by/etc/my.cnf ormysql

When doing ha, you need to design a virtual IP for the server, that is, a host corresponding to multiple IP addresses? It just sounded so amazing, it was possible.I looked at the link below.http://hi.baidu.com/pbottle/item/7175d29702a0a0bd83d29533The alias is referenced at eth0 and the subnet mask is setIfconfig eth0:0 166.111.69.100 netmask 255.255.255.0 upIfconfig viewing the information at this timeClick (here) to collapse or open Eth0 Link enc

the source of the callecx parameters of the plaintext packet.G-15, death is coming! Let the force burst to find the call.G-16 's crazy! Create a supernatural space-style writing call.G-17 's crazy! into one-in-one writing calls.G-18 Zhuge Liang took the arrow to reproduce the extreme kill to open NPC call.G-19. Stingy! Through the eight-time serial meter technology to open the Npccall a parameter source.G-20 's crazy! Use the VIP module to easily wri

Destoon implementation of VIP ranking has been in the previous sort of method, DESTOONVIP The example method implemented in this article is Destoon: After the VIP landing in a day, after the point update, will be ranked in other non-updated VIP and ordinary members in front. The specific steps are as follows: Open module\sell\admin\template\ under Setting.tp

cluster_interconnect Bond0 172.19.20.0 global public3. Change PRIVATE Nic or IP address: This step is similar to changing PUBLIC Nic. For example, we need to change PRIVATE Nic from eth1 to ib1: test1: /home/oracle> $ oifcfg delif-global eth1 test1:/home/oracle> $ oifcfg setif-global ib1/172.13.20.0: cluster_interconnect4. Change VIP configuration: after changing the PUBLIC Nic, the VIP of each node of RAC

each categoryOpening the first page of all categories you can see that all have an identical structure, first parse out the node that contains the resource URL, and then extract the name and URL.Resolve resource Address to fileSave the extracted information to a folder, in order to improve the efficiency of the crawler, the use of Python multi-threaded crawl, here for all the classification of the main page opened a thread, greatly enhance the efficiency of the crawler.Results of crawlingFolder

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In the system patrol, found that the backup of the database is not properly backed up, aware that it may be a problem monitoring, through the database RAC management users to see the RAC1 VIP stopped working.Oracle11gr2_rac for_redhat6.3The process is as follows:1 perform crs_stat-t with grid user to view RAC running status, obviously ORA.RAC1.VIP display offlineName Type Target State Host------------------

This article mainly introduces how to capture thunder VIP accounts in PHP. The example analyzes the skills related to page capturing and regular expression matching in php Based on Snoopy of the Collection class, which has some reference value, for more information, see This article mainly introduces how to capture thunder VIP accounts in PHP. The example analyzes the skills related to page capturing and re