Flush DNS Cache

Hello @aliskander,

aliskander said:

.
command run as admin: ipconfig/flushdns
result: Successfully flushed the DNS Resolver Cache.

. . . but with the command ipconfg/displaydns I still see 139 entries

The two commands should actually be . . .

Code:

ipconfig /flushdns

Code:

ipconfig /displaydns

hope this helps!

aliskander said:

thanks for the answer but the result is the same.

What do you have in your HOSTS file? Display it with Notepad or similar and see if you get the same 139 recs. The HOSTS file becomes part of your active DNS cache.

"C:\Windows\System32\drivers\etc\hosts"

Personally I disable the service using Autoruns before rebooting and flushing then re-enable the service.

Or else I use Hostsman:

aliskander said:

yes, I do have quite a number of entrie is my hosts file; all pointing at my computer : 127.0.0.1
and I see these entries reappear in the DNS cache but alse other entries NOT in the hosts file with
entries pointing to existing websites.
these are not flushed by the command ipconfig /flushdns
Should I delete all entries in the hosts file, flush dns and then rewrite the hosts file?

No, that wouldn't accomplish anything. The entries that are coming back seem to be persistent entries, so as soon as you flush them they come back from some process using the web. Like Callender is saying, those autoruns may likely be starting processes that periodically go out to the 'net. It would be very rare for the cache to be totally empty. As a test, you could disable your LAN card for a bit, run the flushdns, and check it.

Keep in mind you really do not have a problem, you're just messing around with, per post #1. Be careful and don't break something.

aliskander said:

thanks for all the help.
I suppose I leave it as it is.
much appreciated

You're welcome.

New:

DNS Cache Viewer (DCV)

The purpose of DCV is to allow you to view what Windows has in it's local DNS Cache, and allow you to flush it if you want.

Virus Total Report:

For me:

After flush (without manually disabling or stopping the service)

Most of those cached entries are contained in HOSTS file. (27642 after excluding the first 5 lines)