At first we need to instal this packages if they are not presented: yum -y install corosync pacemaker pcs Before your cluster could be configured, you need to start the pcs daemon and boot up at each node, so type Continue reading High Availability Cluster on Centos 7 using Corosync & Pacemaker & pcs
First of all we need to enable xp_cmdshell option on our SQL server. This option enables system administrators to control whether the xp_cmdshell extended stored procedure can be executed on a system. By default, the xp_cmdshell option is disabled on Continue reading How to backup SQL Server databases to a mapped drive using Username and Password
If you try to remove a logical volume you’ll get error like this: Logical volume VolGroup00/LogVol01 contains a filesystem in use. The solutions is to check is there open files, most likely no: lsof | grep LogVol01 And after that Continue reading LVM problem – Logical volume contains a filesystem in use.
To be absolutely clear this plugin is alternative to the MySQL Enterprise Audit Plugin made by Percona. This plugin is a part of Percona 5.6 version, so you can download the latest 5.6 version from http://www.percona.com ind extract .so file Continue reading Installing Percona Audit Plugin on MySQL 5.6.21 community server
For your convenience, a short phrase book, starting with explanation of process states where MySQL is mostly working to look up data from tables: “Sending data” – reading data from tables (or looking it up) “Copying to tmp table” – Continue reading MySQL processlist phrases
On-line device verification is not enabled for resources by default. To enable it, add the following lines to your resource configuration in /etc/drbd.conf: resource resource syncer { verify-alg algorithm; } … } algorithm may be any message digest algorithm supported Continue reading DRBD online verification
This page describes how to integrate Nginx with JIRA, utilising Nginx as a reverse-proxy over HTTP. Configurin Nginx: # force HTTP to HTTPS – /etc/nginx/conf.d/nonssl.conf server { listen 80; server_name jira.itsol.biz; access_log off; return 301 https://$server_name$request_uri; Continue reading Integratin Atlassian JIRA with Nginx and SSL
The server is SQL 2005 sp2, and it’s acting as a main server for one application. Everything is working fine, and the onliest problem I have is that MSDBLog file is growing. The MSDB dB is currently about 100M and Continue reading MS SQL system database MSDB log file is huge
The ARP timeouts are vendor dependent and can very drastically from one vendor to another. Here is some information about ARP timeouts. Cisco 3750 switch # show interfaces vlan 1 Vlan1 is up, line protocol is down Hardware is EtherSVI, Continue reading ARP Timeout Value for Cisco 3750, Linux and Windows
This tutorial will take you through creating an LVM snapshot. Suppose you have a NAS serving files for a company that operates 24 hours per day. There is no time you can stop the servers to run backups. Using LVM Continue reading Using LVM Snapshots – CentOS Short How To