![]() In this article, learn some of the theory behind dealing with legacy code, including what not to do. Porting legacy Perl to Python can be a daunting task. While many people agree that Python is designed in a way that makes it a highly readable language, there can still be problems with legacy, untested Python code too. Python programmers shouldn't get too smug. ( : User space memory access from the Linux kernel Submitted by Noel Wed ) "An introduction to Linux memory and user space APIs" Explore the ideas behind virtual address spaces and the kernel APIs for data movement to and from user space, and learn some of the other mapping techniques used to map memory. ![]() User space memory access from the Linux kernelĪs the kernel and user space exist in different virtual address spaces, there are special considerations for moving data between them. ( : Bazaar: source control system Submitted by Noel Fri ) "Intro to Bazaar, a great place to keep your code" This article introduces you to Bazaar's many appealing features. Bazaar is flexible enough to accommodate Subversion - a centralized system and Git - a decentralized system. If you're using a UNIX or Linux system, chances are that your distribution offers a pre-built Bazaar package. ( : Block crackers with 3 locks to your SSH door Submitted by Noel Mon )īazaar is used to produce the Ubuntu Linux distribution, which is an enormous software project with thousands of components. "Learn 3 ways of hardening SSH access to your system to block would-be crackers" Applying these techniques can make life much harder for possible intruders, who will have to go past three unusual barriers. Methods range from simple sshd configuration through the use of PAM to specify who can use SSH, to application of port-knocking techniques, or to hide the fact that SSH access even exists. Security always requires a multi-layered scheme. ![]() ![]() Block crackers with 3 locks to your SSH door ![]()
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