linux security book

My name Jiang Hao, after the old boy education 4-5 months of study, I must reach the salary of 12K, in order to achieve this goal I will take the following actions:1, multi-directional experienced people learn to ask!2, empty cup of mind, everything from zero start!3, do a good job of each lesson notes!4, working days on average at least 5 hours a day study time, weekend at least 8 hours!5, daily reasonable arrangement of time, less to do with the work of learning unrelated things!6, encountered

My name Yin Sihan , after the old boys education Viban 5-6 months of study, I must achieve the salary goal is 8 k, in order to achieve this goal I will take the following big action or plan: 1. strive for 3 hours of study per day for work reasons. 2. Review the notes every day, get into the habit of reviewing after class and previewing before class. 3. Follow the teacher's train of thought in class, listen carefully, look carefully, write. 4. do not ask for more questions until you understand

My name is strong, after the old boy education ops 5-6 months after the study, I must achieve the salary goal is 10000, in order to achieve this goal, I will take the following ten actions:1, on time class, not late, do not leave early2, carefully arrange their own time. 3, Pre-study before the preview4, make full use of classroom time, do not nap, do not wander5, after study to remember to review6, not playing computer games, dota,lol, etc.7, learn to affirm their courage to turn the lack into

Hello, teachers and classmates all good:I am the old boy education student Jingjing, is honored here and everybody acquaintance, hoped after the old boy education operation and maintenance class several months diligently study, can with everybody grows together progress together realizes the self-worth, I believe we in the old boy education led, One small step in IT operations can be a big step in the development of the IT industry, and what can we do to achieve such a meaningful goal and to emb

After the old boy education ops 5-6 months study, by the end of 16, the target salary is 8k-10k, in order to achieve this goal, I will take the following 10 actions:1, before learning to conduct self-analysis, clear learning purposes.2, correct learning attitude, change the past passive learning situation.3, listen carefully, remember good notes, not late, do not leave early.4, to do the pre-class preview, after class to ask the teacher for difficult questions.5, every night to ensure that work

Section III File operations File attribute Ls–al (the first character of the filename is. for hidden files)Number of connections: How many file names are connected to the secondary node (i-node)Display the full time format: "Ls-l–full-time"File type permissions:-rwxrwx-The first file type: D-directory directory;-Files; l-link file link files; B-accessible random access device; C Serial Port deviceR Readable, W writable, x executable第2-4 for file owner rights, 5-7 for group permissions,

queue, and then call Schedule () to select and execute a different process.The process of waking up is just the opposite of the process being set to executable state, and then moving from the wait queue to the executable red-black tree.4.6 Preemption and Context switching4.6.1 User preemptionArises in the following cases:When the user space is returned from the system, when the user space is returned from the interrupt handler;4.6.2 kernel preemptionOccurs in the following situations:The interr

Http://edu.51cto.com/course/course_id-2199.htmlCourse ObjectivesFrom the perspective of "security", this paper introduces the Common Security optimization measures of red Hat Enterprise Linux Server System, the SELinux principle and application, port and vulnerability scanning, iptables firewall and other network security