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Virtual IP to name resolution

Hi, Recently I added a pool and Virtual IP for one of our web url into BIG-IP version 12.1.2 Build 0.0.249 We are able to access the url using the IP address but not able to access using the name.

192.168.10.14 --> dev2.oitssystem.com

So when we do https://192.168.10.14 it works, but i want to have that work when we put the name. https://dev2.oitssystem.com

Any help is appreciated... Thanks!!

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Answers to this Question

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USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER
  • What diagnostics have you performed?
  • Is the entry in DNS? Can your client resolve it?
  • Have you tested from a client using curl? What did curl say?
  • Does your client have a proxy config that is sending the traffic a different way with name vs IP?
  • Have you performed a tcpdump at either end of the connection?
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Comments on this Answer
Comment made 3 weeks ago by shre 54

yea. I did added these IP/url entries into our DNS name server zone files and restarted the DNS server. The resolution is not working either forward or reverse. I tried all possible ways at DNS level but no luck so far. So was thinking if any workaround at router or bigip level..

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Comment made 3 weeks ago by Hamish 3379

No. You need to fix your DNS unless you want to add that host to the host files of all your clients

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Comment made 3 weeks ago by Shaun Simmons 313

Does the workstation have the correct DNS IP ? I.E. ipconfig /all --will list "DNS Servers"

You should also be able to ping the DNS IP, if not, you have networking issues.

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USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER

From the client machine, if you can't resolve the domain (dev2.oitssystem.com) to the IP address, you have a problem at the DNS level that needs to be sorted and not the F5, especially since you can directly access the IP address and get the relevant data.

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Comments on this Answer
Comment made 3 weeks ago by shre 54

thanks all.. working on fixing the dns

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USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER

There is no magic in IT!

If the dns server don’t resolve the hostname, the client won’t know where it may send the request!

If the request doesn’t arrive on bigip, it can’t do anything!!!

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