by skufel | Mar 14, 2016 | HA/DR, Infrastructure, Messaging, SysAdmin
Set of screenshots from old archives. It shows how to setup DAG on Microsoft Exchange Server 2010. If there will be interest in that subject I will put some description around that, just request that in comments. Otherwise, enjoy step-by-step screenshot guide for DAG...
by skufel | Sep 7, 2015 | HA/DR, Infrastructure, Linux, Network, SysAdmin, Web Servers
Many times there is a need to publish multiple websites from internal network, but there is only one public IP address available. How this can be done easy way? HAProxy can help us with it. In example configuration I have 2 URLs registered to same public IP address:...
by skufel | Jul 27, 2015 | Databases, HA/DR, Infrastructure
SQL Server 2012 has very nice HADR technology built-in, AlwaysOn Availability Groups. It allows to have multiple replicas of selected databases across multiple servers, which can be even located across multiple sites. AlwaysOn itself provides mechanism to keep all...
by skufel | May 20, 2015 | HA/DR, Infrastructure, Linux
Current expectations from all type of systems and services is to be available without any disruption. One of mission critical systems is gateway/firewall. Of course you can use multiple products available on the market. One of them is openSUSE, which is perfect to act...
