Linux

Toss an afternoon, finally success can use the handle and then Chromebook to play arcade game (Slam Dunk, fist, assault Cavalry)Download the corresponding MAME version in http://sdlmame.wallyweek.org/download/(both the main installation package and

RETURN-TO-LIBC attack Experiment One, experimental description 缓冲区溢出的常用攻击方法是用 shellcode 的地址来覆盖漏洞程序的返回地址，使得漏洞程序去执行存放在栈中 shellcode。为了阻止这种类型的攻击，一些操作系统使得系统管理员具有使栈不可执行的能力。这样的话，一旦程序执行存放在栈中的 shellcode 就会崩溃，从而阻止了攻击。 不幸的是上面的保护方式并不是完全有效的，现在存在一种缓冲区溢出的变体攻击，

The zero-based Linux 21st ChapterIn the tense study, and ushered in a new week ~ ~ Small in the students urged to continue to update the blog.Students: "We did not ask you!" ”Alas?? Students do not cooperate at all ~ ~ Don't be embarrassed.OK ~

The grep command in a Linux system is a powerful text search tool that uses regular expressions to search for text and print matching lines. The grep full name is global Regular expression Print, which represents the globally regular expression

Two virtual machines, all to be detected1. is yum available2. Firewall default zone modified to trusted3. Whether the IP address is configured-----------------------------------------------------------------------------------------Samba file Share

In the development of Linux products, it is often necessary to pay attention to the system memory usage, and to evaluate the memory usage of a single process, so that we can choose the appropriate machine configuration to deploy our products.Linux

If you want to get into the business of operations it? Not aware of the prospects and roadmap for Linux OPS engineers? It is unclear what system is optimized for Linux operations? Then what are you waiting for? To listen to the old boy teacher's

Directory Operations command name function Description Examples of Use Mkdir Create a Directory mkdir dirname RmDir Delete a directory RmDir dirname Mvdir

Format a USB flash drive using the MKFS commandAfter the computer inserted the USB flash drive, the first DF command to check the confirmation disk, you can format the USB flash drive into ext2/ext3/fat32 format, the specific command is MKFS-T

It is well known that vmareworkstion is a powerful desktop-based virtualization software that compares Windows virtual machines, Linux virtual machines, and even network operating systems, such as Cisco ASA, Juniper SRX, and so on. And you can use

The following describes the Linux security settings, network firewalls (iptables, NAT, Layer7, diff, Patch, SELinux)First, the firewall1. Firewall Foundation(1), firewallFirewall, which is an isolation tool that works on the host and network edge.

Target Environment,3DeskCentOS 6.6, a set asNTPDServices and external publicNTPService synchronization time, as well as the intranetNTPDservers, and other machines do time synchronization with this service. 650) this.width=650; "src="

The following table lists the default directories or files for Linux and their uses: Catalog/File Use Source / /At the top of the Linux file system tree structure, it is the gateway to the Linux file system,

Know that SSH friends should know what it is used to do, if you do not know what is SSH telnet, you can go to see my previous blog, about the network foundation of Linux knowledge.Note:ssh is used to log in remotely. Execute the SSH command to open

What is itThe uptime is used to see how long the system has been started. It displays the same information as the header of the W command (the first line). Give me a chestnut.To give an actual application scenario: such as the discovery of some

Ls:list (List contents)Cd:change directory (change directory)Su:switch User Switch usersRpm:redhat Package Manager Red Hat Pack ManagerPwd:print Work Directory Print current directory displays the absolute path of the current working

Company recently to a batch of CDN server, need to change the password regularly, originally wanted to use automation tools to achieve this function, but recently busy no time to do, so the first way to modify the script, the Internet search for a

Sometimes the Tomcat port is occupied, the process ID needs to be detected and the process is killed.1. Find the process ID that occupies the port (Windows and Linux as 8005 can also be quoted)6904 is the process ID that occupies the port. In order

Python iterator, generator and decorator, and python generator Decoration 1. Principles and usage of the iterator:1> principle:An iterator is a way to access a set element. The iterator object is accessed from the first element of the set until all

Install NodeJS, mongoDB, and nodejsmongodb in LinuxPrevious This article describes how to install NodeJS and mongoDB in Linux  NodeJS 1. Download The NodeJS installation package in the Linux environment from the official website. 2. Upload the