Oct 13, 2015 · 이혼자 친구 부부의 처음으로 지내는 플레이스토크리카 TV 4K Streaming API. 1:09:10.
Apr 20, 2020
Kaggle's Cloud TV Instance API: Decoding of the 2016.
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Python 3.6.5 (default, Feb 9 2020, 13:10:41) [GCC 6.4.0 20170531.
A:
Your hosts file is preventing DNS requests to GitHub.
To fix this, you will need to add a rule to your hosts file that will allow your DNS requests to GitHub.
Relevant lines from your hosts file should look something like this:
127.0.0.1 github.com
The reason you cannot ping GitHub is that when you ping a DNS address it first does a DNS request to your current DNS server (in this case your ISP's DNS server) and then uses the DNS response to send an ICMP echo request to the IP address specified. Your ISP's DNS server blocks GitHub since it is not an authorized DNS server.
The code block above will send an ICMP echo request to GitHub's DNS servers when you ping a DNS address like github.com. GitHub's DNS servers then send an ICMP echo request to the IP address you specified, which is what you are seeing.
For a detailed explanation of how DNS works, please see ac619d1d87
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