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08/06/2007 Relevance: 9.05Some entertaining lguest documentation discussed in an earlier story was merged into the mainline kernel with the commit message,"the netfilter code had very good documentation: the Netfilter Hacking HOWTO. Noone ever read it. So this time I'm trying something different, using a bit of Knuthiness." Both Netfliter and lguest, as well as the documentation for both, were written by Rusty Russell. He describes the lguest driver as,"a simple hypervisor for Linux on Linux. Unlike kvm it doesn't need VT/SVM hardware. Unlike Xen it's simply 'modprobe and go'. Unlike both, it's 5000 lines and self-contained."Search further
02/16/2007 Relevance: 6.10As is reminiscent of many of the books written by authors for Packt Publishing, the first chapter begins with descriptions and re-introductions to many of the basic networking concepts. These include the OSI model, subnetting, supernetting, and a brief overview of the routing protocols. Chapter 2 discusses the need for network security and how it applies to each of the layers of the OSI model.Search further
02/05/2007 Relevance: 6.01Fully updated introduction to networking on Linux now covers firewalls, including the use of ipchains and iptables (netfilter), masquerading, and accounting. Other new topics include Novell (NCP/IPX) support and INN (news administration). Original material on serial connections, UUCP, routing and DNS, mail and News, SLIP and PPP, NFS, and NIS has been thoroughly updated.Search further
12/15/2007 Relevance: 5.46With IT budgets getting tighter, managers need to trim costs. Service contracts are expensive for any technology; firewalls are no exception. Netfilter, the project that provides the packet filtering program iptables, is a free firewall alternative. While it lacks the service contract of commercial solutions and a pretty interfaces to make firewall modification easy, it has solid performance, performs effectively at firewalling, and allows for add-on functionality to enhance its reporting and response functions.Search further