DNS Failure

DNS Failure

Issue

Via proxy sometimes an error "DNS Lookup for safesqddns.com failed" occurs.


Root Causes

  1. If the FQDN of the website is incorrect.
  1. The local DNS server service is not running.
  1. If the forwarder DNS server is not able to resolve the query.
  1. If network service is down.

Solution

  1. If the FQDN of the website is incorrect you will face a DNS failure issue to that particular website while accessing via proxy. So you should have to enter the correct FQDN of that particular website.
  1. If the FQDN of a particular website is correct but the local DNS server service is not running still you can face a DNS failure issue. So you make sure that the local DNS server service is running.
Run the below commands to verify DNS server service
nslookup (FQDN of the site)
  1. example:
  2. nslookup www.safesquiddns.com
  3. Server:         127.0.0.1
  4. Address:        127.0.0.1#53
  5. Non-authoritative answer:
  6. www.safesquiddns.com       canonical name = safesquiddns.com.
  7. Name:   safesquiddns.com
  8. Address: 164.177.149.146
If the website is not able to resolve:
  1. root@dev:~# nslookup www.safesquiddns.com
  2. Server:         127.0.0.1
  3. Address:        127.0.0.1#53
  4. server can't find test.safesquiddns.com: NXDOMAIN




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