The Linux booting process involves 6 main stages:
1. BIOS performs integrity checks and loads the MBR bootloader.
2. The MBR bootloader loads the Linux bootloader (GRUB).
3. GRUB loads and initializes the Linux kernel.
4. The kernel initializes memory and hardware before starting init.
5. Init reads /etc/inittab to determine the default runlevel and starts programs to launch that runlevel.
6. Each runlevel directory (/etc/rc.d/rc#.d/) contains programs starting with S and K that control services for that runlevel.
Oracle Databaseの既存バージョンの10gや11gOracle Zero Data Loss Recovery Applianceの登場で、ますます重要な機能となってきたOracle Recovery Managerについて、OTN人気連載シリーズ「しばちょう先生の試して納得!DBAへの道」の執筆者が語ります。RMANバックアップの運用例から、高速増分バックアップの内部動作とチューニング方法まで、出し惜しみなく解説します。
I've uploaded my own Japanese translation of Jos's speech at Stanford University at http://www.slideshare.net/haradats/youve-got-to-find-what-you-love-jobs-says.
If you treasure the original speech like I do, why don't you make and share your version in your language?
This kit is a LaTeX template including the speech text. All you need is replace "*Your*" with translations and compile.
Enjoy.
Hint:
To adjust the horizontal positions of paragraphs, \baselineskip is handy.
Note:
The original text which has been published at the Stanford University is slightly different from the spoken words. My guess is that Stanford text is based on Job's memo received from Jobs.
My own Japanese translation of the legendary Steven Jobs's speech at the Stanford university.
Browser version available in http://slides.com/haradats/deck#/
この翻訳および文書の作成は、2015年10月23日に芝浦工業大学で行った講義、「人生をより良く生きるためのプレゼンーション入門」の資料として作成したものです。
PDFファイルは下記でダウンロードできます。
http://www11.plala.or.jp/tsh/stanford.pdf
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
This document discusses the advantages and disadvantages of label-based access control versus pathname-based access control. It notes that while label-based access control is robust against changes to pathnames and namespaces, the location and name of a file still have meaning in terms of how the system behaves and provides services. The document argues that restricting pathname changes is important for preventing unintended system behavior and maintaining system availability. It suggests that both label-based and pathname-based access controls are needed and that the LSM should support both.
TOMOYO Linux is an extension of the Linux kernel that adds process tracing capabilities. It automatically stores the "process invocation history" which shows how each process was created. This allows users to browse the entire process tree and see the relationships between running processes. The TOMOYO Linux policy editor provides a command line interface to view the stored process histories on a system and monitor actions caused by each process. TOMOYO Linux can help provide visibility into process activity and is maintained as an open source project with repositories of patched kernels and tools.
This document provides an introduction to securing Linux systems. It begins by explaining the types of exploits that can compromise Linux systems and gain root access. It then discusses how traditional Linux security methods like discretionary access controls (DAC) and firewalls are insufficient to prevent exploits. The document introduces mandatory access controls (MAC) as an enhancement that can restrict what programs are allowed to do even with root privileges. It emphasizes that MAC systems require security policies to define which accesses should be allowed or denied to provide protection while maintaining usability. The goal of secure Linux extensions is to grant necessary access according to policies while rejecting all other access attempts.
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This document discusses the TOMOYO Linux access control system. It describes two versions of TOMOYO - version 1.6 which does not use Linux Security Modules (LSM) and version 2.2 which modifies TOMOYO to use LSM. The document then provides examples of how TOMOYO can provide access control based on file/directory names and parameters to address scenarios like restricting file uploads and executions. It argues that while label-based access control controls permissions, name-based controls like TOMOYO can address additional factors around how file contents are processed once in userspace.
The document proposes a method called "login authentication multiplexing" to strengthen login authentication security by enforcing multiple authentications rather than a single authentication. It involves placing extra authentication programs after the initial login that must be passed before accessing protected resources. This approach reduces vulnerabilities, allows flexible policies, and prevents damage until all authentications are passed. Practical issues like restricting shell access and remote access programs are also discussed.