General Database Discussions

hi am having following issue when installing oracle database 19c
yum install -y oracle-database-preinstall-19c
Oracle Linux 0.0 B/s | 0 B 00:00
Errors during downloading metadata for repository 'base':

• Curl error (6): Couldn't resolve host name for https://yum.oracle.com/repo/OracleLinux/OL8/3/baseos/base/x86_64/repodata/repomd.xml [Could not resolve host: yum.oracle.com]
  Error: Failed to download metadata for repo 'base': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried