linux security book

Enterprise Linux security System protection is divided into four steps:1, file system security maintenance;2, process security protection;3, user security management;4, log security statistics;1. File system security:Setgit and se

- 设置关注变量 - 18.9 detection system 18.9.1 using UID as selection criteria if (current->uid! = 7777) { / old algorithm / Else { / New Algorithm / } 18.9.2 Using condition variables You can use conditional variables if your code is not process-independent, or if you want to have a mechanism that can be used for all situations to control an attribute. This is easier than using UID, just to create a global variable as a conditional selector

The following is the "high-performance Linux server Building combat Ⅱ" a book or typographical errors, if found to have related error information, I will be published here, but also hope that you can find the error message to me, thank you for the support of readers! Your support is my greatest power to improve the book!1, 30th pageSecond Small segment: 2, instal

series solved with this method)Log in with super privileges, set environment variablesCommand: sudo gedit/etc/profileEnter at the bottom of the document: (Hint: The path entered after Pythonpath= is the Caffe path installed under Linux)Pythonpath=caffe/python: $PYTHONPATHExport PYTHONPATHCommand: Source/etc/profilePythonImport Caffe6.test:Command: Python draw_net.py e.g. ./python/draw_net.py./examples/mnist/lenet_train_test.prototxt lenet.pngNote: Th

Lea EAX,[EBX+ECX] Leal (%EBX,%ECX),%eax Sub eax,[ebx+ecx*4h-20h] subl-0x20 (%ebx,%ecx,0x4),%eax As can be seen from the table, the grammar of at-and-T is more obscure, because [Base+index*scale+disp] can see its meaning at a glance, and disp (Base,index,scale) is unlikely to do so.This approach is often used to access a field within a particular element of the data structure array, where base is the starting address of the array, and scale is the s

Reading is not tiring: Linux's book grabbing tool-Linux general technology-Linux technology and application information. The following is a detailed description. The home page is here. Home Page 2 is also described here. In addition, after downloading a book, you must convert the code. Otherwise, you will not be abl

Tags: operations database python Java managementThe history of human reading is almost the history of human civilization. Book is the carrier of human spiritual wealth, human progress and achievements are recorded in the book, Inherit and flourish. "World Study Day" is only one day, but its meaning is to make every day a "reading Day". Let reading become our lifelong pursuit of "fashion." In this special da

In the previous article, I introduced how to improve Linux system security through system optimization. Here we will continue to introduce how to improve Linux system security through security configuration, in this way, the Linux

1. Turn off the firewallTo view the firewall status:[Email protected]_study ~]# service iptables statusiptables: The firewall is not running. To turn off and turn on the firewall:Requires a reboot to take effect, permanent:Open: Chkconfig iptables onOFF: Chkconfig iptables offNo reboot required, effective immediately, but failed after reboot:Open: Service iptables startClose: Service iptables stop2, turn off SELinuxView SELinux Status[Email protected]_study ~]#/usr/sbin/sestatus-vselinux Status:

My name Guo Dongjie, after the old boy education ops 5-6 months after study, I must achieve the salary target is 15K, in order to achieve this goal I will take the following 10 big lines to:1, every day to learn the old boy video tutorials more than 5 hours;2. Sum up all the orders in class and class;3, earnestly complete the homework left by the teacher;4, do not live up to the expectations of teachers, live up to the old boys education;5, every night to go home to review the commands learned b

entries that do not copy the parent process.The implementation of the Vfork () system call is done by passing a special flag to the clone () system call.3.4 Implementation of threads in Linux3.4.1 Creating ThreadsCreating a thread is similar to creating a normal process, except that you need to pass some parameter flags when invoking clone () to indicate which resources need to be shared:Clone (CLONE_VM | Clone_fs | Clone_files | clone_sighand,0);The parameter flags passed to clone () determine

My name is Zhang Zhiqiang, in the old boy education to learn Linux operation and maintenance to graduate, I must achieve the goal is, after-tax monthly salary of 10K. In order to achieve this goal I take the following measures:First: Get up 6 o'clock in the morning every day. Sleep 11 o'clock in the evening. No less than 5 hours of study time per day. Minimum sleep time 6 hoursSecond: Follow the teacher's thinking in class. Preview, organize, take not

Linux programming is a very good book with comprehensive content and detailed explanations of the examples given. In addition, it is explained through a small project: the first is to use shell for programming, and then gradually improve, use C language for implementation, use the ncurses library for implementation, and use the DBM database instead, use a MySQL database and add a socket. Finally, use GTK an

My name is Wang Xiaofu, after the old boy education ops 5-6 months to study, I must achieve the salary target is 25k/m , in order to achieve this goal, I will take the following ten actions:1. Listen carefully in class, follow the rhythm of the teacher, do a good lesson notes;2. Carefully preview before class, write good preparation notes;3. After-class review carefully, write good review notes;4. Diligent thinking, more hands-on, more practice, do not understand the problem must be understood,

My name Jiang from the good, after the old boy education transport Viban 5-6 After months of study , I have to meet the salary target is 9 K in order to achieve this goal I will take the following actions:1. Pre-class preview, class do not play mobile phones, do not answer the phone, after the completion of the notes to write the whole.2. Study Linux3-5 hours a day3. The first time to finish the homework carefully.4. Write 3-5 python applet per day.5. Read a management

};//version is double-byte, here is the high-byte, low -byteRET = gtp_i2c_read (client, buf,sizeof(BUF)); = U8 buf[8] = {Gtp_reg_version >>8, Gtp_reg_version 0xFF}; //The first 2 bytes have been stored in gtp_reg_version, starting from buf[2], where the data structure remains consistent for subsequent code BUF[8]RET =i2c_read0 (0x5c, Gtp_reg_version, buf[2],6) i2c_read0 (0x5c, gtp_reg_version)//U16 with Double byte.3, overwrite interrupt function processing,look at the driver code, delete all th

Linux Study Plan BookMy name Liu Xinwei after the old boy education ops 5-6 months after study I must achieve the salary goal is 15~20k/month. In order to achieve this goal, I will take the following action or plan1 study no less than 3-5 hours per day.2 review before class to prepare.3 Not addicted to games4 conditions allow to watch video learning while working and leisure5 is good at summing up after each class or after watching the video in their

Learn the Linux project bookMy name is Dong Chen, in the old boy education operation and maintenance class after 5-6 months, I must achieve the monthly salary target is 12K, in order to achieve this goal, I will take the following 10 actions:1. Develop good listening habits: eyes, ears, thinking, notes;2. "Empty cup mentality", responsible for themselves;3. Study the teacher's thinking and problem-solving methods;4. Learn the way of thinking of the te

I believe that the students who are familiar with Linux have a problem is that if you want to view a file to a level or multilevel to the CD switch directory, which has a convenient way to switch the wood? Just like shortcut keys.This is the configuration of the custom command in the Linux system, very simple??In file/ROOT/.BASHRC, add the following line:Alias mycommand = "Cd/root"Executing mycommand direct

My name is Liu Hongbo, after learning the old boy Linux ops video, I will reach more than 10K in the next year, in order to achieve the goal will take 10 major actions or programs.1. Empty cup mentality.2. Get up 6 o'clock every day to watch videos and learn.3. Attitude decides everything, improve self-quality accomplishment, learn to Thanksgiving!4. Home clothes and clothing hygiene every day to tidy up.5. Two or three times a week of physical exerci