Unable to PIng FQDN of Server

If the server is not responding to ping even from the IP address or FQDN then make sure that the server 's firewall is configured to allow Responding to incoming ICMP requests

Byty,

Can you let me know where I can find the local host file?

vikshi,

This is a test network and I don't have a firewall currently installed.

Cheers

Carlton

For simplicity, I would indeed start with
ping IP
ping name only
nslookup name only
nslookup FQDN

That gives a hint where to look next.

Qlemo

I can ping IP.
Can't ping name
can't do nslookup on name
can't do nslookup on FQDN

However, i get a successful reply when do a ping -a 192.168.1.10 which returns hostname and IP address

Weird

Cheers

>> I can ping IP
No firewall issue (at least related to ICMP).

>> Can't ping name
>> [...] successful reply when do a ping -a 192.168.1.10 which returns hostname
Which hostname? The FQDN or the WINS (NetBIOS) name only?

>> can't do nslookup on name
Try again with nslookup -d2 (or in nslookup cli mode, set d2).
If you can see the DNS suffices are tried correctly, and it is the correct DNS server, then there is no DNS record.
If the suffixes are wrong, you will have to check that in your TCP properties.

Make sure you only use internal DNS server for direct resolving.
Output of ipconfig/all?

I was talking about the windows firewall.

Please do check it.

You told that "can't do nslookup on name" what this meeans what error do you get?
Can you ping the DNS server?
Other names are rezolved from this computer?

Hi guys,

Sorry I haven't responded to your suggestions - I had to step away from the computer.
I'm going to check out your suggestions, recommendations and get back to you in a bit.

Cheers

Hi guys,

Below are the outputs from various commands.
I don't have windows firewall installed. As a matter of fact when I click on 'windows firewall' I get the following message ('windows firewall cannot be run because another program or service is running that might use the network address translation component (Ipnat.sys))' I'm not sure what that means.

Byty,
As regards nslookup, I can only get results from the server itself, not for the server I'm trying to ping.

Guys, I hope I've give enough info to assist me in getting this working.

Oh, I should mention, I have managed once to ping the FQDN of the server but it then suddenly stopped when I pinged it back from the other server - does that help?

C:\Documents and Settings\Administrator>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : keyloop-017982a
   Primary Dns Suffix  . . . . . . . : keyloop.com
   Node Type . . . . . . . . . . . . : Unknown
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : keyloop.com

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : HP NC7781 Gigabit Server Adapter #2
   Physical Address. . . . . . . . . : 00-0B-CD-4E-40-CA
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.1.5
   Subnet Mask . . . . . . . . . . . : 255.255.255.252
   Default Gateway . . . . . . . . . : 192.168.1.6
   DNS Servers . . . . . . . . . . . : 192.168.1.5
                                       192.168.1.10

C:\Documents and Settings\Administrator>ping -a 192.168.1.10

Pinging KEYLOOOP-4D20E4 [192.168.1.10] with 32 bytes of data:

Reply from 192.168.1.10: bytes=32 time<1ms TTL=127
Reply from 192.168.1.10: bytes=32 time<1ms TTL=127
Reply from 192.168.1.10: bytes=32 time<1ms TTL=127
Reply from 192.168.1.10: bytes=32 time<1ms TTL=127

Ping statistics for 192.168.1.10:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Documents and Settings\Administrator>ping KEYLOOOP-4D20E4
Ping request could not find host KEYLOOOP-4D20E4. Please check the name and try
again.

C:\Documents and Settings\Administrator>ping keylooop-4d20e4.keylooop.local
Ping request could not find host keylooop-4d20e4.keylooop.local. Please check th
e name and try again.

C:\Documents and Settings\Administrator>

Thanks again guys

Do you have A records in the DNS Server for the server KEYLOOOP-4D20E4.keylooop.local
Q: your domain is keylooop.local or keylooop.com?

ipconfig/all displays keyloop.com (2 o in loop with .com) and you're trying communicate with <hostname>.keylooop.local (3 o in looop with .local)

The same thing with the other server's name. the local host is spelled with 2 o in keyloop and you're trying to communicate with servername spelled with 3 o in keylooop.

If this is correct with keyloop.com existing one server and keylooop.local exists on the other server, you nead to configure conditional forwarding to forward the other domain's DNS suffix to the correct server.
DNS server properties -> Forwarders -> New, and add the correct DNS server for the other domain.

You can also create a stub or secondary zone on the local DNS server with the remote server as primary server for the other domain.

henjoh09

You D Man. Configuring conditonal forwarding did the trick. I will award you the points but you can please tell me why conditional forwarding needed to be configured?

Cheers

Carlton