Hello, got an AWS machine. All works well with root, if I run yum update, but while using ansible or just logged in with a normal user and running: sudo yum update, it fails with:

Does anybody know how to fix this or why does it happen?

NOTE: I use some AWS proxy for http/https which is setup in /etc/profile.d/proxy.sh and its accessible by all users.

If it works as root, the issue is most likely related to the user account.

1. Have you made sure, that the user account does have permissions to run sudo?
2. Have you made sure, that indeed all users have access to the proxy?
3. Did you try with a different user?

Looks like, whenever you try to connect with a regular user, the connection fails. I am fairly sure that the connection is the issue, because I suppose if it was for missing sudo permissions, you would get an access denied error and not just the connection timing out.

Unfortunately I am not too familiar with AWS - I will consult with a fellow Linux tech, who does work with this kind of stuff and see if he has an answer.

1. Yes, otherwise I would get a different kind of error
2. Yes, doing echo $http_proxy, works for all users
3. Yes, 2 users in fact

Actually, if I try manually to download the repomd.xml file from the failed repo, I can do it as a normal user.

Found the issue, seems that sudo didn't export everything, so adding following line to sudoers file:

fixed the issue.

Glad you got it fixed.
Also good that you have shared your solution. Sorry I could not be of more help. AWS really isn't my strong point.

This is not AWS issue, this was a stupid sudo setup issue.