If mirroring from Anaconda.org is not an option for you you may want to mirror offline. In order to do this, first have your Implementation or Support Engineer send you the link to air gap archives from airgap.demo.continuum.io. The air gap archives are generated monthly. This tar file is very large so it may take several hours to download. After you have downloaded it successfully, you can extract the tarball and then reference the location of these packages in your mirror config.
In your mirror config, /home/anaconda-server/repo/etc/anaconda-server/mirrors/your-config.yaml add the line:
channels: - /tmp/mirror/pkgs
In this case, /tmp/mirror/pkgs will be the path where you extracted the tarball.
Then run the anaconda-server-sync command as you would normally, making sure to reference your mirror config.
anaconda-server-sync-conda --mirror-config /etc/anaconda-server/mirrors/your-config.yaml
This will mirror the contents of the local Anaconda repository to your Anaconda Server installation under the username ‘anaconda.’