{"id":10295,"date":"2018-10-19T18:59:48","date_gmt":"2018-10-20T01:59:48","guid":{"rendered":"https:\/\/www.zubairalexander.com\/stage\/?p=10295"},"modified":"2018-10-19T19:17:37","modified_gmt":"2018-10-20T02:17:37","slug":"how-to-clear-the-dns-resolver-cache-and-flush-socket-pools-in-chrome-browser","status":"publish","type":"post","link":"https:\/\/www.zubairalexander.com\/blog\/how-to-clear-the-dns-resolver-cache-and-flush-socket-pools-in-chrome-browser\/","title":{"rendered":"How to Clear the DNS Resolver Cache and Flush Socket Pools in Chrome Browser"},"content":{"rendered":"

Once in a while you may have a need to clear the DNS host resolver cache in Google Chrome. This is typically useful if you are having connectivity issues with certain Web sites, or Web pages. You can also flush the socket pools, but this is normally not necessary. In addition to troubleshooting connectivity problems, sometimes these actions are taken for security reasons.<\/p>\n

The Chrome net-internal page capture events while the browser is running and then displays the data in real-time. You can look at various events, timeline, DNS resolver cache, socket pools and much more. In this article I will focus on the DNS cache and the socket pools.<\/p>\n

Clearing the Host Resolver Cache<\/strong><\/h4>\n

In your Chrome browser, go to the URL\u00a0chrome:\/\/net-internals\/#dns<\/strong>. Here you will find your DNS cache. By default, there is room for 1000 entries. You can see that under Capacity in the graphic below. You will see the state of the entries. In the screenshot below, out of the 1000 entries listed on this page, there are 997 expired entries and 3 active entries.<\/p>\n

\"Clear<\/a><\/p>\n

To clear the cache, click Clear host cache<\/strong>.<\/p>\n

Flushing the Socket Pools<\/strong><\/h4>\n

To flush the socket pools, go to\u00a0chrome:\/\/net-internals\/#sockets<\/strong>\u00a0and click Flush socket pools<\/strong>. If you are already on the DNS page, just select Sockets<\/strong> in the left hand column. Usually you don’t need to worry about flushing the socket pools.\u00a0In fact, if you don’t fully understand what sockets are and how they work then you should leave the socket pools alone because flushing the pools may break some of your pages that have active connections.<\/p>\n

\"\"<\/a><\/p>\n

If you are familiar with sockets then under certain situations you may want to use this feature. Click View live sockets<\/strong>, select an SSL socket to see more information about the connection, such as:<\/p>\n