Linux

Tools: Daemontools Daemontools is a set of UNIX service Administration tools developed by QMail's author DJB, where a program named supervise can be used for service startup, stop service restart, and so on.Installation:Create A/package

Yum installation and uninstall background For some reason deleted the/usr/share in the Yum-plugins, Yum-cli folder, resulting in the Yum command invalidation, after discovery, the two folders imported from other virtual machines, but still missing

Linux to compile the installation source code is nothing more than three steps,./configure,make,make Install The first step into the source code directory Run command 1./configure--prefix= installation directory--target= target platform Above these

VMware download, you can go to his official website: https://www.vmware.com/cn/products/workstation-pro/workstation-pro-evaluation.html 360 and other software installation centers are available to download, but it is estimated that only the latest

Using LibreOffice to draw a table is really a bit of a pain in the egg, inefficient. deep understanding of computer system-> virtual memory Kernel Virtual Storage The operating system process time is user state and kernel state. In virtual storage,

Single Board software Linux kernel appears crash, how to use the GDB tool to debug. The basic method process is as follows: 1. In order to test GDB operation, intentionally in the Kernel/linux/fs/ioctl.c file Do_vfs_ioctl method to add null pointer

Formatting and mounting To be used, a hard drive should be partitioned and formatted to mount these three steps. We've talked about MBR partitions and GPT partitions before. Now let's talk about if you format a partition. In fact, it is very

Clear: Clean screen Date: Show current date Echo: Shows a date DF: Displaying disk consumption Free: Displays system memory usage, physical memory and swap memory Uptime: Show how long the system has been running Sync: Writes system memory

After installing the Liunx with VirtualBox, after the general situation, will go to install the corresponding enhancement function, but after the call SH Vboxlinuxadditions.run, often will appear the following one failed information: Building the

From XP to Linux is really uncomfortable, not only the operating system unfamiliar, even a variety of familiar software are missing, into the system really do not know where to begin. 1. Install Uubuntu A simple point can be installed directly

1.Linux Link ConceptThere are two kinds of Linux links, one is called hard link (Hard link), the other is called Symbolic link (symbolic link). By default, the LN command produces a hard link. "Hard Connection"A hard connection refers to a

1. Use VM to install Centos6.0-sio image files, install Linux 32-bit system, kernel 2.6, set root password, install complete login system, open Terminal Command window. #uname-A View system version #gcc-v View gcc compiler version #g + +-V view g++

Linux Driver Pen Test summary The questions are taken from the network and used for the people. Recently in the study of Linux drivers, driving development in the written test when the knowledge points are the law to follow, and these pastries are

Nginx static file processing ability is very good, we can further optimize it. The reading of static files will consume IO resources. Consider moving a static file into Linux memory, which should be much better if you read the resource from memory

There is a hardware access to the Linux system can be mounted by the Mount command to mount a path to the hardware device to access the contents of the Hardware Device 1 Insert Disc Find the inserted disc name (if the Vmvare virtual machine can

Mans Page The man page is the most commonly used reference manual for Linux development, consisting of a number of pages, each describing a theme that is organized into several section pages. The FHS (filesystem hierarchy Standard) standard

1, if not root user, switch root user Su Root Enter root password2, check whether the installation of JDK Java-version If already installed, the following figure, then do not install ...Otherwise, continue the installation: Yum-y Install java-1.8.0

Reference http://blog.sina.com.cn/s/blog_e59371cc0102vg4n.html http://www.tuicool.com/articles/rUzEJ3 # The client uses TCP to send packets, to retransmit several times net.ipv4.tcp_syn_retries = 6 # Kernel.shmall = 4294967296 net.ipv4.tcp_max_

Problem Description:Uninstall the CentOS system and delete the partition volume of the CentOS hard drive directly under Windows. The reboot encountered a problem, could not get into windows, and went into grub or something because the previous MBR (

Topic Xiaoming is a server administrator, he needs to back up the forum data every day (here we use log substitution), back up the day's log and delete the previous log. And the file name is the year-month-day format after the backup.