DNS issue - No Internet after a couple of days

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i have installed new 2008 server r2, along ad. dc. dns installed automatically during ad set-up.

the issue have after 2 days can no longer access internet. if restart dns service ok, @ least 2 days. 1 thing noticed sheer chance while likes of google, yahoo, etc. don't work, uk.msn.com , within domain working quite happily! - these pages not cached either. mean?

when open server manager, there no errors or warnings in dns server events. however, when scan role best practice analyzer get:

error: dns servers on lan should include loopback address, not first entry

* not sure add: 127.0.0.1

warning: lan should configured use preferred , alternate dns server

* have 2008 member server, can secondary dns or have dc

warning: dns server should have scavenging enabled

* ticked box @scavenge stale resource records (7 days) still message

i have restarted server no avail.

 

any advice appreciated.

 

 

 

hi,

to configure ipv4 dns settings
========================
1. on dns server, click start, click run, type control netconnections, , click ok.

2. right-click network adapter wish configure, , click properties.

3. click internet protocol version 4 (tcp/ipv4), click properties, , click advanced.

4. on dns tab, under dns server addresses, in order of use, click add, type ip address of dns server wish add, , click add. add ipv4 loopback address, type 127.0.0.1.

5. change order of dns servers, click arrow or down arrow on right side of list. when have completed configuring list of dns servers, click ok twice, , click close.

for details:

dns: dns servers on <adapter name> should include loopback address, not first entry
http://technet.microsoft.com/en-us/library/ff807362(ws.10).aspx

to configure primary , secondary dns ipv4 addresses
===========================================
1. click start, click control panel, click network , internet, click network , sharing center, click change adapter settings, double-click network connection want change, , click properties.

2. click internet protocol version 4 (tcp/ipv4), , click properties.

3. click use following dns server addresses.

4. in preferred dns server , alternate dns server, type primary , secondary dns server addresses.

to enable scavenging on dns server
==============================
1. click start, click run, type dnsmgmt.msc, , press enter. dns manager console open.

2. click advanced tab.

3. select enable automatic scavenging of stale records check box.

4. adjust scavenging period, in drop-down list, select interval in either hours or days, , type number in text box. default value scavenging interval 7 days. values less 6 hours or greater 28 days not recommended.

hope helps!

best regards
elytis cheng

 

please remember click “mark answer” on post

elytis cheng

technet community support



Windows Server  >  Windows Server General Forum



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