When installing Veeam Agent for Linux in CentOS 6, the installation fails with the "Failed to install Veeam Agent for Linux: Error: Cannot find a valid baseurl for repo: base" error.
CentOS 6 has reached End Of Life on November 30th, 2020. Official repositories are no longer available.
OR
CentOS Product Specifications: https://wiki.centos.org/About/Product.