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Some crazy DNS issue by My ISP

Today I faced an interesting DNS issue with my Internet Service Provider. The issue is very simple I can go online but ping request to open DNS server returns request timed out. It is very interesting, right?

The complete story is like below. While browsing I suddenly went offline and as usual to check the connectivity I ping to global DNS address. I got Request Timed Out message. So desperately I tried other open DNS addresses like and but they too failed to get a valid reply. Then I just ping and it gave me to reply and my browser can go to

Screenshot of my ping operation is attached below.

Crazy DNS issue by my ISP where I am online but cannot ping global dns

After the result, I again ping and got Request Timed Out message. Meantime I can browse to any website without any issue. I called the ISP and asked what is the actual reason for this issue. After some escalation (Normal procedure :-) )
they told me it was their server mistake and it is corrected now.

Solution to DNS issues from ISP

In case if your ISP's DNS server is not working or not up to full satisfaction we can use open DNS address on your computer. The open DNS addresses are

Steps to assign open DNS in Ubuntu Linux


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Alex George
Alex George has Engineering graduation in Computer Science and an MBA in Finance. He had been working as a senior Network Engineer for ten years. His specialization is in Cisco products. Traveling is one of his hobbies and visited various places as part of his onsite work. He visited different places as part of his onsite work like New York, Dubai, London, etc. Right now Alex is a director of one of the leading career development firms in India, which trains students for UPSC, SSC, and PSC examinations. He guides a lot of students to get selection for various prestigious institutions like CBI, Income Tax Department, etc. Alex George is a stock market investor and a very active intraday trader. Engineering Background: He has a B.Tech in Computer Science and Engineering and passed different network and security courses like CCNA, CCNP (Security), CEH, and various Microsoft certifications. Finance Background: Alex has an MBA in Finance. He is an active intraday trader and a Share Market Investor. Webmaster Skills: Alex is a blogger since 2004. He has a working knowledge of HTML, CSS, PHP, and JavaScrip.