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trial awaits: Download a 30 day, fully functional, free trial which also includes GFI technical support. No credit card required 10 different ways dns ip resolver to troubleshoot DNS resolutions issues. Introduction We all need proper DNS resolution for our network applications. When it this is not working, what do you do? Let us find out… Let’s face it, when DNS resolution is dns resolver tool not working, using anything on your computer that has to do with networking is painful because there is good chance it will not work. DNS really is not a “nice feature” of a network, it is a requirement. As a network admin, I have heard the alarming cry of end users moaning that the network is down, when it would be the cause of the DNS servers. In these cases I assure them that the

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network is up and running fine but it is the DNS servers that are down! As you can imagine, that does not go over very well with them because to an end user, it is all the same thing. DNS is “the network” (not that they know what DNS is anyway). So how do you troubleshoot this critical network infrastructure service when you are on an end user PC (or your PC) and DNS is not resolving a DNS name? Here are the 10 tips and tricks that I recommend you try to get DNS working again… 1. Check for network connectivity Many times, if you open your web browser, go to a URL, and that URL fails to bring up a website, you might erroneously blame DNS. In reality, the issue is much more likely to be caused by your network connectivity. This is especially true if you are using wireless networking on a laptop. With wireless security protocols, the key will be periodically renegotiated or the signal strength will fade, causing a loss of network connectivity. Of course, you can lose network connectivity on any type of network. In other words, before blaming DNS for your problems, start troubleshooting by checking “OSI Layer 1 – Physical” first and then check your network connectivity. Here you should find a wireless connection with

in console Router: DNS Resolver failed to initialize; error ; DNSServer; Debug_DNSServer; NameServer; TCPIP; Parameters Technote (troubleshooting) Problem When server started, the error open dns resolver occurs as following. "Router: DNS Resolver failed to initialize" Cause The "NameServer" dns resolver cache value in Windows registry key indicated below is NOT properly configured. Environment Domino 9 64-bit on Windows 2008

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R2 64-bit Resolving the problem You can work around this issue by editing the Registry to correct DNS server settings. NOTE: The information in this technote is presented as a guideline http://www.windowsnetworking.com/articles-tutorials/trouble/10-Ways-Troubleshoot-DNS-Resolution-Issues.html for making changes within the Windows Registry. The Windows Registry is central to the operation of Windows, and any changes must be performed with care. As with any configuration change, it is highly recommended that customers have complete backups of computer systems and data files before attempting the following procedure, in order to facilitate recovery from system file corruption or other possible http://www-01.ibm.com/support/docview.wss?uid=swg21656232 failures. IBM does NOT recommend that customers make changes to the Windows Registry without the assistance of Microsoft Technical Support. Further, customers who manually modify the Windows Registry may not be eligible for Microsoft Technical Support until Windows is reinstalled. Customers making changes to the Windows Registry do so at their own risk. 1. Launch the Registry (Start, Run, and type regedit). 2. Look for the Registry key identified as HKEY_LOCAL_MACHINE-SYSTEM-CurrentControlSet-Services-TCPIP-Parameters 3. Confirm the "NameServer" string contains the correct IP address for DNS purposes; if it does not contain the correct IP address, enter it in that string. 4. If a change is made to the registry, restart the whole server to ensure the change takes effect. Cross reference information Segment Product Component Platform Version Edition Messaging Applications IBM Domino Router Windows 64bit 9.0 Social Edition Document information More support for: IBM Domino Mail Server Software version: 9.0 Operating system(s): Windows Reference #: 1656232 Modified date: 2013-11-19 Site availability Site assistance Contact and feedback Need support? Submit feedback to IBM Support 1-800-IBM-7378 (USA) Directory of worldwide contacts Contact Privacy Terms of use Accessibility

Training Support Forums & community Events Rational Tivoli WebSphere Java technology Linux Open source SOA and http://www-10.lotus.com/ldd/nd8forum.nsf/0/aa0b4d775d1ce397852579500039444e?OpenDocument Web services Web development XML My developerWorks About dW Submit content Feedback developerWorks>Lotus>Forums & community>Notes/Domino 8 Forum Notes/Domino 8 Forum Sign in to participate Subject: "Router: DNS Resolver failed to initialize.: DNS resolver error" Feedback Type: Problem Product Area: Domino Server Technical Area: Administration Platform: Windows 2003 server Release: 8.0 Reproducible: Always Dear dns resolver All, Lotus Domino Server restarts automatically for every 3 hours once from morning. Mail routing is working fine.Finally I have found the error message that DNS Resolver failed to initialize Please help urgent......... Performing consistency check on log.nsf... Completed consistency check on log.nsf 17/11/2011 02:28:17 PM Event Monitor started 17/11/2011 02:28:20 PM Begin scan dns resolver error of databases to be consistency checked 17/11/2011 02:28:20 PM End scan of databases: 2 found 17/11/2011 02:28:21 PM Successfully registered 2 system filters. 17/11/2011 02:28:21 PM The Console file is E:\Lotus\Domino\data\IBM_TECHNICAL_S UPPORT\console.log 17/11/2011 02:28:21 PM Console Logging is ENABLED 17/11/2011 02:28:21 PM Server aeinportal/hcltech has faulted and is now back up and running. 17/11/2011 02:28:22 PM Index update process started 17/11/2011 02:28:22 PM Database Replicator started 17/11/2011 02:28:22 PM Replicator is set to Ignore Database Quotas 17/11/2011 02:28:22 PM Calendar Connector started 17/11/2011 02:28:22 PM Admin Process: aeinportal/hcltech is the Administration Server of the Domino Directory. 17/11/2011 02:28:22 PM Schedule Manager started 17/11/2011 02:28:22 PM Rooms and Resources Manager started 17/11/2011 02:28:23 PM Performing consistency check on admin4.nsf... 17/11/2011 02:28:23 PM RnRMgr: Informational: Schedule Manager is responsible for the busytime database on this server. 17/11/2011 02:28:23 PM SchedMgr: Informational: Schedule Manager is responsiblefor the busytime database on this server. 17/11/2011 02:28:23 PM IMAP Server: Starting... 17/11/2011 02:28:23 PM I

 

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