The Spacewalk server is your custom rpm server which hosts all your rpm packages. If you want to connect to an Spacewalk server, you need to viers install the following package:
$ yum install rhn-setup
https://access.redhat.com/documentation/en-US/Red_Hat_Network_Satellite/5.5/html/Channel_Management_Guide/chap-Red_Hat_Network_Satellite-Channel_Management_Guide-Introduction_to_RHN_Channels.html
http://www.spacewalkproject.org/
the following lists all channels a machine is subscribed to:
# rhn-channel --list
Alternatively do:
$ spacewalk-channel --list
to register a client to a spacewalk server, you use the rhnreg_ks command:
$ rhnreg_ks --activationkey {channel name}
To subscribe to a new channel, we do:
https://access.redhat.com/solutions/57504
See also:
https://access.redhat.com/solutions/57504
also run the following command to check what repos you're connected to:
$ yum repolist