Dns cache time windows xp

I hope you find this post helpful. Then Nas1 goes down. Make any sense? Yo might just need to change the DNS cache timeout for positive responses where a lookup was successful. For Windows XP and. Set the value to equal the required timeout in seconds the default is 1 day. To change the DNS cache timeout for negative responses where a lookup failed. Windows XP and.

Set the value to equal the required timeout in seconds the default is 5 minutes. Restart Windows for the changes to take effect. You can always have the client show its DNS cache info and then have it register within DNS if its showing incorrect info to see if that fixes the issue. If it does, it can be a setting within your DNS servers.

Not sure there though. The only way to have this server queried earlier will be to set it in the first three positions. Shall the client have more than one NIC active with different DNS servers configured on them, the client resolution behavior is slightly different. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. That way, you won't have to go out to a DNS server and wait for the response before visiting a web site.

Open it in Notepad and enter the IP addresses and hostnames of your commonly visited web sites, like this:. Each entry in the file should be on one line. The IP address should be in the first column, and the corresponding hostname in the next column. At least one space should separate the two columns.

You can add comments to the file by preceding the line with a , in which case the entire line will be ignored by the file, or by putting a after the hostname, in which case only the comment after will be ignored.

You might want to comment on individual entries? Make sure to check your HOSTS file regularly and keep it up to date, or else you may deny yourself access to certain web sites. So, when you want to go to a site, XP first looks in its local DNS cache, called the resolve cache , to see whether the DNS information is contained there. That way, if it finds the information locally, it doesn't have to query a remote DNS server to find IP information. The cache contains both negative and positive entries.

Positive entries are those in which the DNS lookup succeeded, and you were able to connect to the web site. When XP looks in the cache, if it finds a positive entry, it immediately uses that DNS information and sends you to the requested web site. Negative entries are those in which no match was found, and you end up getting a 'Cannot find server or DNS Error' in your browser. Similarly, when XP looks in the cache and finds a negative entry, it gives you the error message without bothering to go out to the site.

Negative entries can lead to problems. When you try to make a connection to a site that has a negative entry in your cache, you'll get an error message, even if the site's problems have been resolved and it's now reachable. You can solve this problem, though, using a Registry hack. By default, XP caches negative entries for five minutes.

After five minutes, they're cleared from your cache. Your computer can quickly refer to it whenever trying to load a website. The DNS cache is like a phonebook that stores an index of all public websites and their IP addresses. Its main purpose is to speed up a request to load a website by handling name resolution of addresses that you recently visited before the request is sent out to tons of public DNS servers.

Since the information is available locally, the process is much quicker. As noted earlier, there are various ways to display DNS cache on Windows This can be useful if you want to diagnose DNS issues, for example, where an invalid or out of date DNS record might be cached. To display the contents of the DNS cache, you need to execute the following command in an elevated Command Prompt:. And like in Command Prompt, you can also export or save the database.

When you run into Internet connectivity issues, flushing or clearing the DNS cache usually resolves the problem. DNS cache ensures quick access to websites, and when you clear it, the first time you visit a website, it may take longer than usual to load. But afterward, the results will be quicker again.