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IMPORTANT
NOTE: This document is based on RedHat Linux
7.3, Enterprise and CentOS. The concepts should be similar across operating
systems, but the commands will very likely be different.
Also, never assume the directory structures exist in your system
as written in the document. Never blindly follow security
instructions -- read, review, compare, apply as it fits your
system.
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Log into each server as root. Edit
the /etc/host.conf file.
Ensure this file has the following settings:
# Lookup names via DNS first then fall back to
etc/hosts.
order bind,hosts
# We have machines with multiple IP addresses.
multi on
# Check for IP address spoofing.
nospoof on
spoofalert on
Save the file. |
IMPORTANT
NOTE: This document and all
linked document is being provided as a good will gesture to the
Parallels H-Sphere community and to others who may benefit from its use.
Dynamic Net, Inc. makes no representations implied or explicit
as to their value or warranty. Dynamic Net, Inc. will not be
held liable for any damage resulting in the application of the
steps and procedures noted. If you feel uncomfortable at
all about doing any of the steps, make a complete system backup
and hire a third party like
We Manage Servers
to do the work for you.
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