Kernel configurationa

Code maturity level options
Prompt for development and/or incomplete code/drivers (CONFIG_EXPERIMENTAL) [N/y/?]
Processor type and features (Далее…)

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Securing the kernel

The secure Linux kernel patches from the Openwall Project are a great way to prevent attacks like Stack Buffer Overflows, and others. The Openwall patch is a collection of security-related features for the Linux kernel, all configurable via the new “‘Security options” configuration section that will be added to your new Linux kernel. This patch may change from version to version, and some may contain various other security fixes. (Далее…)

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Configuring and Building a secure, optimized Kernels

Linux Kernel
Overview
Well, our Linux server seems to be getting in shape now! But wait, what is the most important part of our server? Yes, it’s the kernel. The Linux kernel is the core of our operating system, and without it there is no Linux at all. So we must take care of our kernel and configure it to fit our needs and compile just features we really need. (Далее…)

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Tuning IDE Hard Disk Performance

Performance increases have been reported on massive disk I/O operations by setting the IDE drivers to use DMA, 32-bit transfers and multiple sector modes. The kernel seems to use more conservative settings unless told otherwise. The magic command to change the setting of your drive is “hdparm”. (Далее…)

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The “noatime” attribute

Linux has a special mount option for file systems called noatime that can be added to each line that addresses one file system in the 7etc/fstab” file. If a file system has been mounted with this option, reading accesses to the file system will no longer result in an update to the atime information associated with the file like we have explained above. (Далее…)