"The No. 1 challenge in configuring Linux routers is the lack of good-quality documentation for newer features and more advanced functionality," Mancill said. "Even when there is ample documentation, there may not be a single, canonical source for it."
On many Web sites, Linux and open-source community members offer router configuration tips, product reviews, how-tos and support. "This goes with the territory of using a community-supported operating system, but it does mean that you may have to spend extra time sifting through mailing list archives and multiple HOWTO documents to get what you're looking for," Mancill said. "In extreme cases, I've had to refer to the source code itself to determine exactly how a feature should be used."
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