Linux

Linux version for note there are two ways to install, one is through the compilation of the source to install, this technology through the small white many attempts, all failed. Another way is to run the official green version of the executable file

/root directory is the only directory that must be mounted. Don't hesitate to choose a partition and mount it! (in the vast majority of cases, 10G capacity should be sufficient.) Of course, a lot of things are more and more./boot it contains the

In an Internet environment, an overly simple password can put the server at an important risk. As a manager, we should identify those user accounts with weak passwords to facilitate the next step of security.We can install John the Ripper software

Create swap partition[Email protected]:~# Mkdir/swap[Email protected]:~# cd/swap/[Email protected]:/swap# ls[Email protected]:/swap# dd If=/dev/zero of=swapfile bs=1m count=8k4096+0 Records in4096+0 Records out4294967296 bytes (4.3 GB) copied, 95.358

Tag: request semaphore no str key value image stdout Inux operation A semaphore is a counter that is typically implemented in the kernel for simultaneous access to shared data objects by multiple processes. Header files using semaphores are #

Cat connection file, print to standard output deviceIntroduction to Grammar Cat [OPTION] ... [FILE] ...-a--show-all equivalent to-vet-B Display number strip blank line-N display number includes blank line-E Display line terminator-s

1.[[email protected] ~]# vim/etc/sysconfig/networkNetworking=yes whether to use network functionsHOSTNAME=WWW Host Name2.[[email protected] ~]# vim/etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4:: 1 localhost

IP acquisition with static acquisition and dynamic acquisitionCan modify the configuration file/etc/sysconfig/network-script/ifcfg-eth0 Static accessDevice=eth0 NIC NameBootproto=none whether to use DHCP to obtain IP automaticallyHwaddr=mac

1. Install the JDK before installing Tomcat (subject to the premise)2. Download the installation package apache-tomcat-8.0.36.tar.gz decompression: TAR-ZXVF apache-tomcat-8.0.36.tar.gz3. Start Tomcat:Switch into: Apache-tomcat-8.0.36/bin,

For shared resources, I have been in touch with GitHub before, and now it still has a lot of resources, which facilitates the exchange and sharing of resources between people. But there is another way to store data, he is SVN, now many companies

operating system: CentOS release 6.9 (Final)Software: nginx-1.10.3Task: Install NginxCombat skills: Set Nginx auto-start service1. get Nginx software[Email protected] tools]#wget http://nginx.org/download/nginx-1.10.3.tar.gz[Email protected] tools]#

First, the automatic acquisition of IPThere is only one situation where you can automatically get an IP address, which is the DHCP service in the network environment where your Linux resides. As long as your real machine can get IP automatically,

touch 创建空文件夹及改变文件的时间戳Syntax format: Touch "option" "File" touch [options] [file]Attention:1.mkdir commands and subsequent options and directories, each of which must have at least one space between each element2. Everything in Linux is a file.

Linux file structure/：根目录，所有的目录、文件、设备都在/之下，/就是Linux文件系统的组织者，也是最上级的领导者。`/bin：bin 就是二进制（binary）英文缩写。在一般的系统当中，都可以在这个目录下找到linux常用的命令。系统所需要的那些命令位于此目录。/boot：Linux的内核及引导系统程序所需要的文件目录，比如 vmlinuz initrd.img 文件都位于这个目录中。在一般情况下，GRUB或LILO系统引导管理器也位于这个目录。/cdrom:

Weak passwords (weak password) are not strictly and accurately defined, and are often considered weak passwords that are easily guessed or cracked by someone else (they might know you well). A weak password is a password that contains only simple

The Linux file system consists of three parts: file name, Inode, block (really save data)[[email protected] desktop]$ stat/etc/passwd File: '/etc/passwd ' size:2358 blocks:8 IO block:4096regular filedevice:fd00h/64768dinode:35729195

Linux timed Task crontab Cron Service Cron is a timed execution tool under Linux that can run a job without human intervention. Service Crond Start//Startup servicesService Crond stop//Shutdown servicesService Crond restart/

The ideas added are:Extended hard Disk---Add new primary partition--partition format to file--mount--Auto mount settingsOne, extended hard driveVMware increases hard disk spaceSecond, add a new primary partitionView partition fdisk-l[Email

Rz upload Files directorySz download file to local directory./ Execute file (relative path) current directory/ Path (absolute path)Absolute path: Starting from the root directory, complete file pathRelative path: Not the full path, depending on the

Supplement :| : Channel character (left of the processing result as the execution input on the right )cat aa1.txt | grep AAgrep –R: recursive query ( sub- folders and sub-files under the current folder) Recursive query character )Grep–r Half *