Skip to main content

Microsoft DNSLINT tool to diagnose common DNS name resolution issues.

 DNSLint tool:

DNSLint is a Microsoft Windows utility that helps you to diagnose common DNS name resolution issues.

The following file is available for download from the Microsoft Download Center:





Download the Dnslint.exe package now. (http://download.microsoft.com/downlo...slint.v204.exe)


For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591 (http://support.microsoft.com/kb/119591/ ) How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.


Source: http://support.microsoft.com/default.aspx?scid=kb;en-us;321045

The simplest method of using DNSLINT is to verify DNS records for domain
controllers. To do this, run:

DNSLINT /AD IP of dc you want to check /S IP of DNS server authoritative for MSDCS
subzone

It also has the /QL functionality in order to check SRV records and the like.

This will run and generate an HTML-based report of records on this DNS server for
AD, confirming that CNAME records match up with A records. The easiest way to
interpret the results is to scroll to the very bottom of the page and look at the
summary report - any warnings or errors will be noted. All issues in the body of
the report are color-coded for easy viewing as well.

Comments

Popular posts from this blog

Integration with vCloud Director failing after NSXT upgrade to 4.1.2.0 certificate expired

  Issue Clarification: after upgrade from 3.1.3 to 4.1.2.0 observed certificate to be expired related to various internal services.   Issue Verification: after Upgrade from 3.1.3 to 4.1.2.0 observed certificate to be expired related to various internal services.   Root Cause Identification: >>we confirmed the issue to be related to the below KB NSX alarms indicating certificates have expired or are expiring (94898)   Root Cause Justification:   There are two main factors that can contribute to this behaviour: NSX Managers have many certificates for internal services. In version NSX 3.2.1, Cluster Boot Manager (CBM) service certificates were incorrectly given a validity period of 825 days instead of 100 years. This was corrected to 100 years in NSX 3.2.3. However any environment originally installed on NSX 3.2.1 will have the internal CBM Corfu certs expire after 825 regardless of upgrade to the fixed version or not. On NSX-T 3.2.x interna...

Calculate how much data can be transferred in 24 hours based on link speed in data center

  In case you are planning for migration via DIA or IPVPN link and as example you have 200Mb stable speed so you could calculate using the below formula. (( 200Mb /8)x60x60x24) /1024/1024 = 2TB /per day In case you have different speed you could replace the 200Mb by any rate to calculate as example below. (( 5 00Mb /8)x60x60x24) /1024/1024 =  5.15TB  /per day So approximate each 100Mb would allow around 1TB per day.

Device expanded/shrank messages are reported in the VMkernel log for VMFS-5

    Symptoms A VMFS-5 datastore is no longer visible in vSphere 5 datastores view. A VMFS-5 datastore is no longer mounted in the vSphere 5 datastores view. In the  /var/log/vmkernel.log  file, you see an entry similar to: .. cpu1:44722)WARNING: LVM: 2884: [naa.6006048c7bc7febbf4db26ae0c3263cb:1] Device shrank (actual size 18424453 blocks, stored size 18424507 blocks) A VMFS-5 datastore is mounted in the vSphere 5 datastores view, but in the  /var/log/vmkernel.log  file you see an entry similar to: .. cpu0:44828)LVM: 2891: [naa.6006048c7bc7febbf4db26ae0c3263cb:1] Device expanded (actual size 18424506 blocks, stored size 18422953 blocks)   Purpose This article provides steps to correct the VMFS-5 partition table entry using  partedUtil . For more information see  Using the partedUtil command line utility on ESX and ESXi (1036609) .   Cause The device size discrepancy is caused by an incorrect ending sector for the VMFS-5 partition on the ...