Centos yum proxy Unauthorized

Dears,
i am trying to create yum proxy for centos 7 packages and i have followed below video

also below is my configuration on nexus side and client side but yum makecache give me ://192.168.5.15:8081/repository/yum-base/repodata/repomd.xml: [Errno 14] HTTP Error 401 - Unauthorized

server base url : CentOS Mirror
client repo details :
[base]
name=Centos-Base
baseurl=192.168.5.15:8081/repository/yum-base/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-Centos-7
repo_gpgcheck=0

note: i removed http word as i am new user and hit limit of 2 url per post

any one could help plz

The error message tells you 401 unauthorized, I would imagine you need to allow anonymous access or use authentication.

how could i enable anonymous access