Implementing Server Failover; The Package Updater Applet - Red Hat NETWORK SATELLITE 5.3.0 - CLIENT Configuration Manual

with the fully qualified domain name (FQDN) for the RHN Proxy Server or RHN Satellite Server. For
example:
serverURL[comment]=Remote server URL
serverURL=https://your_primary.your_domain.com/XMLRPC
noSSLServerURL[comment]=Remote server URL without SSL
noSSLServerURL=http://your_primary.your_domain.com/XMLRPC
Warning
The httpProxy setting in /etc/sysconfig/rhn/up2date does not refer to the RHN
Proxy Server. It is used to configure an optional HTTP proxy for the client. With an RHN
Proxy Server in place, the httpProxy setting must be blank (not set to any value).

2.2.4. Implementing Server Failover

Beginning with up2date-4.2.38, the Red Hat Update Agent can be configured to seek updates
from a series of RHN Servers. This can be especially helpful in sustaining constant updates if your
primary RHN Proxy Server or RHN Satellite Server may be taken offline.
To use this feature, first ensure that you are running the required version of up2date. Then manually
add the secondary servers to the serverURL and noSSLServerURL settings in the /etc/
sysconfig/rhn/up2date configuration file (as root). Add the fully qualified domain names (FQDN)
for the Proxy or Satellite immediately after the primary server, separated by a semicolon (;). For
example:
serverURL[comment]=Remote server URL
serverURL=https://your_primary.your_domain.com/XMLRPC; \
https://your_secondary.your_domain.com/XMLRPC;
noSSLServerURL[comment]=Remote server URL without SSL
noSSLServerURL=http://your_primary.your_domain.com/XMLRPC; \
https://your_secondary.your_domain.com/XMLRPC;
Connection to the servers is attempted in the order provided here. You can include as many servers as
you wish. You may list the central RHN Servers, as well. This makes sense, however, only if the client
systems can reach the Internet.

2.3. The Package Updater Applet

Red Hat Enterprise Linux 5 features a running program on the graphical desktop panel that
periodically checks for updates from the RHN or Satellite server and will alert users when a new
update is available.
Implementing Server Failover
7