Category Archives: General

vCenter Appliance Management – WebSite Login Issue

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Scenario: You can not login to VMware vCenter Server Appliance via Web interface (https://vCenterServer:5480) with root account, but you can login via CLI with SSH. Solution: In this statement, check the VMware vCenter server by accessing the appliance via SSH and then going to Shell. You have to check the… Read more »

Remove Server Information, .Net and MVC Information From Response Header

microsoft-iis-logo

In order to prevent information leak findings such as identified server and .NET version in the response of the web server like below, there are some actions to be taken. Especially while hosting an application in Azure as a webapp, owners are unable to configure settings in IIS level and… Read more »

Software Defined Storage – VMware VSAN

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Recently software defined storage is a part of software defined data center concept which we hear so much more. Storage is a pillar in our data center. While naming software define storage concept “the simplified structure of traditional storage systems” becuase of it provides easy installation/usage/management platform. As you know,… Read more »

Logon failed for login due to trigger execution

microsoft-sql-server

If there is an damaged logon trigger on your Microsoft SQL Server, all login attempts will fail. Cannot connect to servername ADDITIONAL INFORMATION: Logon failed for login ‘DOMAIN\USERNAME’ due to trigger execution. Changed database context to ‘master’. Changed language setting to us_english. (Microsoft SQL Server, Error: 17892) We need to… Read more »