Posted 19 June 2012 - 10:45 PM
I'm not able to resolve Internet from any pc or from the server in my company when i use my dns server with root hints !!.
Note:. Root Hints are available and validates
but when i put Google DNS IP "188.8.131.52" in forwarders Tab then all of pc & server can surf the internet normally wihtout problems ?
I Have 2 Modules Of Firewall "ASA & FortiGate " But no Rule Applied on the server !!!!
can anyone help me on this case please ?
Thanks A lot Guys,
Posted 20 June 2012 - 07:42 AM
or this http://www.itgeared....s-issues-edns0/
or any of these
Using DNS Security Extensions (DNSSEC) Windows 2003
Distribute Trust Anchors
DNS Security Extensions (DNSSEC)
Modify DNSSEC configuration: (DNS)
Server 2008 and don't forget to read the comments.
One of them will relate to your problem but also look at your firewall because of this "DNSSec utilizes UDP DNS packets larger than 512 bytes and many firewalls don't recognize the larger packet size as being legitimate DNS packets" so read this http://technet.micro...y/hh972393.aspx
and this for general guidance if you FW is cisco but just follow the guidelines as it applies to protocol rather than vendor so its based around the Core DNSSEC RFCs are RFC 4033, RFC 4034, and RFC 4035
Posted 20 June 2012 - 06:35 PM
google dns is working but root hints are not working, when i switch forwarders to 184.108.40.206 i can get to the internet and i've tried to put the root hints IP's in Forwarders tab but still not working too .
Posted 21 June 2012 - 05:13 AM
Posted 21 June 2012 - 07:26 AM
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