Chapter 13. Customizing a Firewall Live Linux CD
Live Linux CDs make an excellent choice for a firewall, for a number of reasons. First, most firewall-specific distros require very little software, so they fit quite well on a single CD-ROM. Second, performance isn’t much of a factor because, again, not a lot of software is involved in setting up a Linux-based firewall; the system shouldn’t need to read from the CD-ROM very often, so it shouldn’t take a performance hit in reading from CD-ROM instead of a hard disk.
Third, the software on the CD-ROM is write-only, so you don’t have to worry about an intruder tampering with the software included with the live CD distro. Finally, you don’t usually need to write data to disk with a firewall distro, ...
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