OK, I have a few problems with this post.
#1 Fedora is NOT CentOS, so this post is clearly in the wrong place.
#2 you have posted TWICE (see
https://www.linuxquestions.org/quest...ne-4175617191/ which is clearly against the site rules. Please do not try to multi-post your questions.
As the other post is in a (slightly) more correct place, I will respond to content over there.