GitHub Blocking AWS IP Addresses

[fletc3her]

GitHub is blocking me from accessing either HTTPS or SSL endpoints from the 54.213.. IP address block which is used by EC2 at AWS. This is preventing my production and development machines which are virtually hosted from accessing my source code.

# time git pull
ssh: connect to host github.com port 22: Connection timed out
fatal: The remote end hung up unexpectedly
real 1m3.685s

user 0m0.028s

sys 0m0.079s

Testing SSL and HTTPS connectivity both time out from these servers but work from my local machines and from other IP address blocks at AWS.

# ssh -T git@github.com
# curl https://github.com/ -I

[fletc3her]

I have contacted support as well.

[fletc3her]

For some reason github.com was hard-coded in /etc/hosts.

I think that this was an old practice to prevent the system from adding many hosts to the known hosts file and prompting for permission every time.

[AndreaGriffiths11]

Dropping the link to the other request here as it might help someone else. Thanks for updating this post @fletc3her!

[silverark]

I was also facing the same issue, thatnks to the comments above I traced my issue.

I had a section in my ~/.ssh/config for github.com which was specifying the host separately as ssh.github.com. I think this fixed an issue in the past, but was no longer needed.