Linux

1.ssh-keygenSsh-keygen is a tool used by the unix-like system to generate and manage SSH public and private keys. 2. UsageThe most important options that are commonly used are:-B num Specifies how many bit-length keys are generated, in the units of

People who have played Linux will know that there are really a lot of commands in Linux, but people who have played Linux have never bothered by the fact that Linux commands are so many, because we only need to master the commands we use most often.

After installing the CENTOS7, determine the following points1. Turn on the network cardUse VIM/ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ENS33 (here Ens33 is the name of My network card) to see if the NIC is booting, as. Each time you start or restart the

I. Open/Close Firewall command under Linux 1) permanent, no recovery after restart: Chkconfig iptables on off: chkconfig iptables off 2) immediate effect, restart   restore:/etc/ Init.d/iptables start off:/etc/init.d/iptables stop  It is necessary

User and file Rights Management One, Experiment Introduction 1.1 experiment Content Create, delete users, and user groups in Linux. The file permission settings in Linux. 1.2 Experimental Knowledge points Linux User

The network route is usually in the home, or in the company, are necessary to configure, so it is very important, today's small series will give you a configuration of network routing configuration of small experiments, for your reference only.

Original link: http://blog.chinaunix.net/uid-28541347-id-4926054.htmlWhen we use the top command to see the system's resource usage, we see load average, as shown in. It represents the average workload of the system at 1, 5, 15 minutes. So what's

Some users when using Azure Linux virtual machine installation software, some software license and the current system's MAC address binding, then the Azure VM restart, Reszie (change size), stop and then boot, the virtual machine MAC address will

1. Download UltraISOFILE--Open, check centos.iso image; Start-to-write HDD image--Hard drive (select U disk) write mode (USB-HDD+V2)--write;2. Delete into the ASUS motherboardSelect the U-disk start selection Test & CentOS Install3. Install the

grep (keyword: intercept) text-gathering tool, combined with regular expression is very powerfulMain parameters []-C: Output only matching rows-I: Case insensitive-H: Do not display file names when querying multiple files-L: Only file names with

One, Linux under the CP/RM/MV Force overwrite (a), backslash (\) temporarily de-alias [email protected] ~]# \cp filename new/filename ~]#(b), Unalias cancel AliasNote: This is only a temporary cancellation of the CP alias, not Permanent

Linux system under the decompression zip or rar files may produce garbled files or directories, using RM-RF fileName cannot be deleted, RM-RF delete the previous level of the directory can be, but need to back up, compare time,Can actually be

Because the Gitlab data is stored in shared storage, the play of this configuration is turned into Mount iSCSI.Os:centos 7.2ip:172.16.1.191/192.168.2.191iSCSI Sub-target (server side) [disk cabinet] and initiator (client) [Windows,linux], this time

In Linux systems, there are two types of links: One called hard link, and the other is called symbolic or soft link (symbolic link).1) By default without parameters, the LN command creates a hard link, and the ln command with the-s parameter creates

To configure the Nginx configuration file/etc/nginx/nginx.conf First, enable the SSL feature as follows:[email protected] ~]# vim/etc/nginx/nginx.conf650) this.width=650; "src="

ObjectiveGlances can provide Unix and Linux performance experts with the ability to monitor and analyze performance data, including: CPU usage Memory usage Kernel statistics and running queue information Disk I/O speed,

1.man page　　　 Code Content Description NAME Short instructions, data description Synopsis Brief introduction to the syntax of the instruction release DESCRIPTION A more

Interview , the interviewer may ask you what work you've done before. Through your answer, he can determine whether you have ever done operation. Below I give some answers, hope can help you. 1. Look at the monitoring center, to deal with the

The following is a centos7 test done on the versionUse the following command to view disk usagels -lh file system capacity used% mount point Devtmpfs 3.9G 0 3.9G 0%/devtmpfs 3.9G 0 3.9G 0%/dev/shmtmpfs 3.9G 2.9M 3.9G 1%/runtmpfs 3.9g 0 3.9G

Kickstart and kickstart There are many options for kickstart to automatically respond to files. The following only describes several common options that may be used in CentOS 6. In addition, the options of CentOS 6 and CentOS 7 are quite different,