"OK, last week we took a quick look at Red Hat's new
business initiative, the Red Hat Network (RHN). This week we're
going to get jiggy with some of the system administration issues
that the RHN forces us to consider when dealing with it."
"The first thing that you will need to know is that currently
only Red Hat Linux 7 is supported by the RHN, although soon 6.2
will also be supported. So if your company is running an old 5.2
box, as well you might be, for 5.2 was quite a reliable release,
then forget about the RHN. It's not supported. I very much doubt
that many people are running version 7 of Red Hat Linux on trusted
servers yet anyhow, so this is more of an option you might want to
look at when you start installing new Red Hat servers."
"Secondly, using the RHN will involve a little daemon running on
supported machines. This daemon is called the 'rhnsd' or Red Hat
Network Service Daemon, and it's run via the normal init scripts. A
simple way to turn this on and off is to use the utility 'ntsysv'
which is packaged with Red Hat. Saves you all the hassle of
modifying those scripts yourself. On the systems I was looking at,
this daemon did not seem to take up much system resources at all.
If you're worried, try running 'top'."
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