Posted 13 March 2010 - 06:14 PM
What is clear the DNS cache?
Is there any risk?
Sorry for my English. I am Brazilian and I used the Google translator.
Posted 13 March 2010 - 09:46 PM
When a computer visits a website for the first time, it stores the website's DNS information in cache. The next time the computer visits a website, it looks in the cache to see if the website's information is present to use. This can cause problems if the website's DNS information has changed since the computer's last visit. Flushing the cache removes all the information stored in cache, forcing the computer to find the new DNS information for the website.
You can safely clear the DNS Cache if you're having trouble accessing a website due to a DNS error which may or may not fix the problem.
The DNS Cache does list websites visited by name, so clearing it can also help protect privacy.
Posted 14 March 2010 - 05:32 AM
If you have lots of entries in your hosts file ( %SYSTEMROOT%\system32\drivers\etc\hosts ) these will still appear after you have flushed the cache, because these are your explicit DNS overrides.
As Jamin4u says, privacy is probably the main benefit of clearing this in CCleaner.
Posted 16 March 2010 - 07:41 PM
It is even clear the DNS cache?
The only problem would be privacy?
In short: It is best to clean or not clean?
Thanks to Jamin4u and marmite.
Posted 17 March 2010 - 12:00 PM
The only thing it really effects is privacy unless, as Jamin4u says, you have a DNS problem. It doesn't save much space or improve performance. Cached content expires after a while anyway.
How you set this isn't really a big issue either way, unless you're obsessed with privacy issues, in which case you may as well turn the caching service (DNS Client) off in the first place.
Posted 20 March 2010 - 05:00 PM