Also, is the server behind a firewall? Can it make DNS queries to the internet?
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Default DNS Server name cannot be resolved
I am configuring a new GroupWise system. I have the the GWIA, POA, Web Access Agent and MTA installed and running on the server without error. Outgoing email are not being delivered and the GWIA shows a 550 Host Unknown error message with every outgoing email. When I run nslookup I receive:
default DNS server name cannot be resolved
Default DNS Server 209.115.152.130
Address 209.115.152.130
I don't know where the address comes from or how to change it.
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Answers
When you say "running on the server" do you mean you have only one server for all services? Is this a "small business" OS setup? Since you say "6.6" I'm guessing yes.
Is it NetWare or Linux? You say NetWare 6.6, but there's never been a NetWare 6.6 released - do you mean Novell SB suite 6.6, which has NetWare 6.5 OS, or is it the Linux flavor? I ask because there were 2 flavors of SBS6.6.
Have you considered following "best practices" and placing your GWIA and GWWA on a server in your DMZ separate from your POA, and creating a secondary domain for GWIA? Unlike Microsoft's SB setup, you're not limited to one server for all services - you can have up to 5 NetWare 6.5 servers in a SBS6.6 network, IIRC, and the Linux flavor probably has no limit except perhaps how many servers you can install eDirectory on.
How is your server connected to the Internet - do you have a single NIC or is there a separate physical NIC for the Internet connection? If not, are you multihoming or using NAT for the internet connection public IP, or both?
What is the server's default route/gateway assigned to?
the nslookup is resolving your DNS server IP address from your TCP/IP configuration, do a IPCONFIG /ALL from your workstation command line (windows) to see your DNS server IP address.
As for your GWIA - is it Statically NAT'd to the Internet and do you have an MX (10) record associated to that Public NAT from your ISP?
Is your firewall opened for SMTP (incoming and outgoing) from your public IP address thru the NAT to the private IP address of your server hosting the GWIA?
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by: BudDurlandPosted on 2008-03-06 at 16:33:06ID: 21066194
What's in SYS:/etc/resolv.cfg ? This is where you define the DNS servers a NetWare server will use.
Notice it's 'resolv.cfg, not 'resolve.cfg'
General configuration is
domain <yourdomain>
nameserver 1.2.3.4
nameserver 6.7.8.9
IIRC, you are allowed up to 8 name servers. t