3.7. Configuring an Oracle Linux 5 System to Use yum with ULN

3.7. Configuring an Oracle Linux 5 System to Use yum with ULN
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If your Oracle Linux 5 system is registered with ULN, you can use yum instead of up2date to download and install packages. If you have installed a full update since Oracle Linux 5.6 was released on January 20, 2010, your system should already be able to use yum with ULN.

To enable yum support:

Install yum-rhn-plugin.
```
# up2date --install yum-rhn-plugin
```
If your organization uses a proxy server as an intermediary for Internet access, specify the enableProxy and httpProxy settings in /etc/sysconfig/rhn/up2date as shown in this example.
```
enableProxy=1
httpProxy=http://proxysvr.yourdom.com:3128
```
If the proxy server requires authentication, additionally specify the enableProxyAuth, proxyUser, and proxyPassword settings:
```
enableProxy=1
enableProxyAuth=1
httpProxy=http://proxysvr.yourdom.com:3128
proxyUser=yumacc
proxyPassword=clydenw
```
Caution
All yum users require read access to /etc/sysconfig/rhn/up2date. If this file must be world-readable, do not use a password that is the same as any user's login password, and especially not root's password.

With the plugin installed, you can immediately start to use yum instead of up2date.

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