[CentOS] Changing hostname?

nate centos at linuxpowered.net
Sat Sep 13 12:06:36 UTC 2008

William L. Maltby wrote:

> HWADDR=xx:xx:xx:xx:xx:xx  # I've masked out MAC address for this post

Out of curiosity why ? You are aware that someone knowing
your MAC address outside your local network is fairly
useless right?

I just find it funny how people tend to mask MAC/IP/host/domain
names. If your system is not secure, and is on the internet,
people on this list(and those scanning the archives etc) are
the least of your worries.

for reference, my IP addresses are

DSL Line(retiring after 8 years, ISP says they are changing
my IPs after they got bought out for the 3rd time since I've
been with them):,,,,

Personal co-location (just moved my services from DSL to
here in the past couple hours):,,,

and my cable modem IP is

MAC addresses:
(OpenBSD firewall protecting my Cable and DSL lines)
00:03:47:08:a9:fe 00:03:47:08:a9:ff 00:02:b3:be:82:cc 00:02:b3:be:82:cd
00:02:b3:be:86:f4 00:02:b3:be:86:f5

MACs for servers on my DSL
00:0F:1F:72:15:3F 00:04:23:C0:09:BC 00:04:23:C0:09:BD 00:0C:29:13:58:14

(Same MACs on the migrated systems at co-location, they are
virtual machines)


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