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6.4.2. Configuring the Master RHN Satellite Server

To use the inter-satellite sync feature, you must first ensure that you have it enabled. Make sure that the /etc/rhn/rhn.conf contains the following line:
disable_iss=0
In the same file is the variable:
allowed_iss_slaves=
By default, no slave Satellites are specified to sync from the master server, so you must enter the hostname of each slave Satellite server, separated by commas. For example:
allowed_iss_slaves=slave1.satellite.example.org,slave2.satellite.example.org
Once you finished configuring the rhn.conf file, restart the httpd service by issuing the following command:
service httpd restart