osmo learning system

directory; 2. Get the step flow: Under the newly established directory, go to the INSTALL and README and other related files (important steps!); 3. Dependency Properties Software Installation: According to the content of Install/readme and install some dependent software (not necessary); 4. Establish makefile: detect the working environment with the Automatic detection program (configure or config) and establish the makefile file; 5. Compile: Make this program and use the Makefile in this direc

. A 100.200.210.220$GENERATE 1-60 stu$ A 192.168.10.$2. Restart named service3. Verification: nslookup www.bj.tedu.cn 192.168.4.7Recursive parsing: A DNS server that interacts with other DNS servers, eventually bringing the results back to the processIterative parsing: DNS server, interacting with other DNS servers#####################################################DNS server for child domains, capable of resolving tedu.cn end-of-host namesVirtual Machine B:1. Modify the master configuration fi

My path to operating system development and learning. Below I will list the time used in each stage 1) Assembly, I used the longest time at this stage. I have never played low-level before learning Assembly. I am not used to having to do not like for-loop, and I am not used to allocating memory myself, I spent almost 3-4 years

Data can not be separated from server storage, Linux is free, open source, relatively stable and secure relative to other operating systems, is the preferred operating system for server-side deployment.There are a lot of learning materials about Linux on the web, just a simple list of Linux Learning Essentials.The most important thing is usually more practice, no

This document is a learning note on the ArchLinux system configuration, which is referenced and studied in the ArchLinux official website: general recommendations.The configuration here is primarily for the basic arch Linux system that has just been installed on the official website, with the first two steps of System

program in sequence .That is, each program processes all the necessary input data, performs the necessary calculations, prepares all the required outputs, and then returns control to the system to initialize the file strip preparation and sequence the next program's load.There is the system entries available to every program. Twelve of the entries is for initialization and execution of General subroutine o

a file> Echo content > FileName//Add content to file [overwrite add content, original content is deleted]> Echo content >> filename//Add content to a file> Echo Content >/>> newfilename//Creates a new file with add content [redirect mode]18. Add a user to the systemUser Add/mod/del> Useradd username//Add a userThe user is created by the way, and the set user's group is not displayed> useradd-g NNN username//Add user and set group> useradd-g nnn-d Directory user name//add user and set home direc

= +, effective uid= +lienhua34:demo$su# ChownRoot tsys#chmodu+s tsys#ls-L Tsys-rwsrwxr-x1Root Lienhua347358October the at:Panax Notoginsengtsys# exitexitlienhua34:demo$./tsys./printuidsreal UID= +, effective uid=0During the execution of the above, we set the owner of the Tsys file to Superuser root and set the user ID bit. Thus, when executing the Tsys file, the process has a valid user ID of 0 (that is, root). The child process that calls the system

Android 5.0 kernel and source code learning (2)-source code download and system startup process analysis, android5.0 I,AndroidSource code download The last time I briefly introduced the hierarchical structure of the Android system, I started to figure it out-download the source code and analyze the source code! So where is the Android source code? Of course is G

-Close all running processes and restart the system ( the system will restart continuously ).Run-level switching:[[Email protected] ~]# Init 5Inittab File Analysis:In Inittab, all entries take the following format: id:run-levels:action:processID: identifier, typically two-bit letters or numbersRun-levels: Specifies the run level, you can specify multipleAction: Specifying the Run stateProcess: Specify the s

In those years, I learned the main contents of machine learning:1. Basic introduction to machine learning, getting started with machine learning; 2. Linear regression and logistic. XX Performance Prediction System, intelligent interactive statistical system, etc. 3. Ridge re

That years. I learn the main contents of machine learning:1. Basic introduction to machine learning, getting started with machine learning; 2. Linear regression and logistic. XX Performance Prediction System. Intelligent interactive statistics System, and so on. 3. Ridge ret

novice, Look at the information, the more confused. By chance, I came into contactwith the "Linux should learn this" book, this book is the latest RHEL7 system for the background with RHCE as the goal is also handy, this book is a practical thing, very little nonsense, Be able to check your progress at any time. Learning Linux is not a short time to learn very well, this requires knowledge of precipitation

This article was reproduced from: http://blog.csdn.net/fengyuwuzu0519/article/details/74080109Copyright NOTICE: This article for Bo Master original article, reprint please specify http://blog.csdn.net/fengyuwuzu0519.Directory (?) [+] Hardware platform: tiny4412 System: linux-3.5-20151029 File system: BUSYBOX-1.22.1.TAR.BZ2 Compiler: arm-linux-gcc-4.5.1 Objective: Use Uboot

Label:First contact with the ASP. NET development, hope to write down their learning journey, on the one hand to do a summary of knowledge induction technology, on the other hand open to the blog, and everyone to exchange learning! ASP. NET is one of the most popular web development technologies, and it is a free network application framework developed by Microsoft. Because of its strong professional backgr

(Recursive) display (directories under subdirectories are displayed recursively)Cd:change Directory (toggle current directory)CD back to home directory, home directories, home directoryCD ~username: Enter the home directory of the specified userCD-: Switch back and forth between the current directory and the previous directoryType: Shows which type the specified command belongs toCommand type:Built-in command (shell built-in), internal, built-inExternal command: There is an executable file corr

changes the destination address of the locally generated package. The postrouting chain changes its source address before the package leaves the firewall.The mangle is primarily used to modify the TOS (type Ofservice, service type), TTL (Time tolive, lifetime) value of the packet, and to set the mark mark for the packet to implement QoS (Quality of service,Service quality) tuning and Policy Routing applications are not widely available due to the need for appropriate routing device support. Fiv

is:Owner-->facl,user-->group-->facl,group-->otherUse ACLs to set additional permissions for a fileSetfacl [-m|-x] [ug]:[username| GROUPNAME]:P erm FILE (Prem is an octal number )-M: Set ACL-x: Remove the ACL, Note that it is time to cancel the ACL, and do not need to add permissions. -U: Specifies the permissions that the user has on the file-G: Specifies the permissions that the user group has to the fileSo how do you get an ACL that is already set?Getfacl FILENext, we introduce several comman

Linux Operating system Basics First, the basic principles of Linux:1, consisting of a small program with a single purpose; a combination of small procedures to complete complex tasks;2, all documents;3, try to avoid capturing user interface;4. The configuration file is saved as a plain text file.Second, the interface :GUI Interface (Graphics interface):Gnome:cKde:c++XFaceCLI Interface (command line interface):(Command Prompt):#:root Users$: Normal

the/var directory under the master root and belong to the group mail;Find/var-user Root-group Mail2. Find files that do not belong to Root,bin or student in the/USR directory;Find/usr-not-user root-a-not-user bin-a-not-user StudentFind/usr-not \ (-user root-o-user bin-o-user student \)3. Find files that have been modified in the last week and not belonging to root and student users in/etc directory;Find/etc-mtime-7-not \ (-user root-o-user student \)Find/etc-mtime-7-not-user root-a-not-user Stu