Installation guide
99
Installing the Engine on Intel-Compatible Platforms
Checking File Integrity
Before installing the IPS or Layer 2 Firewall engine from downloaded files, check that the
installation files have not become corrupt or been modified. Using corrupt files may cause
problems at any stage of the installation and use of the system. File integrity is checked by
generating an MD5 or SHA-1 file checksum of the downloaded files and by comparing the
checksum with the checksum on the download page.
Windows does not have MD5 or SHA-1 checksum tools by default, but there are several third-
party programs available.
To check MD5 or SHA-1 file checksum
1. Look up the correct checksum at https://my.stonesoft.com/download/.
2. Change to the directory that contains the file(s) to be checked.
3. Generate a checksum of the file using the command
md5sum filename or sha1sum
filename
, where filename is the name of the installation file.
4. Compare the displayed output to the checksum on the web site. They must match.
Creating the Installation DVD
Once you have checked the integrity of the installation files, create the installation DVD from the
files. Use a CD-burning application that can correctly read and burn the CD-structure stored in
the
.iso images. If the end result is a DVD file with the original .iso file on it, the DVD cannot
be used for installation.
Caution – Do not use files that have invalid checksums. If downloading the files again does
not help, contact McAfee support to resolve the issue.
What’s Next?
Continue by Creating the Installation DVD.
What’s Next?
Continue by Starting the Installation (page 100).