Linux

2nd Chapter: Installation Guide 2.1 Pre-Installation Preparation 1, collecting system data: In order to be able to successfully install and set up the Linux system, you must put the following information for the installation of the system to

The SSH full name Secure Shell, as its name implies, is the meaning of a very secure shell, an agreement developed by the network Working Group of the IETF (Internet Engineering Task Force). SSH's main purpose is to replace the traditional Telnet

This afternoon, the site two times the machine, the dispatch to Aliyun, found that the reason is the server's CPU 100%. After restarting the server, use the top command to see which processes are consuming so much CPU usage. Stare at a good more

Description: As a personal understanding, KVM is a kernel virtualization technology, and the kernel is not used on the interface, then QEMU provides a user-level interface to assist each other. Of course, using QEMU alone can also be a complete set

For Linux OPS workers, using SSH remote remote server is no longer familiar! Some of the strict settings for SSH also related to server security maintenance, today, I work in the use of SSH experience, do some summary records to the next. (1) After

Magic key: Linux Magic System Request key HacksWhen a Linux system does not respond properly to user requests, you can use the SysRq gadget to control Linux.One-SysRq enable and shutdownTo enable SYSRQ, you need to set the MAGIC sysrq key

Reprint to: http://beikeit.com/post-495.html simple translation: This Linux official information mainly describes the external fragments (external fragmentation), internal fragments (internal Fragmentation) concept and the related situation, it

Guide Linux is an open-source operating system, it supports a variety of hardware platforms, Linux server world-renowned, and it is the main difference between Windows is that the Linux server is generally not provided by default GUI (graphical

Linux, you can use the Chown command to modify the folder's user rights.1. Log in to Linux with normal user A, and use Su-to switch to the root user2. Under root user, you can see the contents of the folder3. But unable to open git folder through

Instruction: DFCheck the disk space usage of the file systemYou can view the total capacity, usage space, remaining space, mount location, and so on for all mounted disksSyntax:# DF [OPTION] [FILE]File is an optional list of one or more path names,

Example: compressing the contents of the current directory on the server as a xxx.zip fileZip-r xxx.zip./*Unzip the zip file to the current directoryUnzip Filename.zip============================Another: Some servers do not install the ZIP package

Iperf is a network performance testing tool. Iperf can test TCP and UDP bandwidth quality. The Iperf can measure the maximum TCP bandwidth with multiple parameters and UDP characteristics. Iperf can report bandwidth, delay jitter, and packet loss.

    Complete the SSL (Secure Socket Layer) Certificate Service through Linux + Apache + OpenSSL, and provide secure HTTPS (Hypertext Transfer Protocol over Secure Socket Layer) services. Device SSL 1. device OpenSSL Tar-zxvf openssl-0.9.8a.tar.gz CD

Install and run docker in linux, and run docker in linux Writer environment: 1. lsb_release- Hello @ hello :~ $ Lsb_release-No LSB modules are available.Distributor ID: UbuntuDescription: Ubuntu 16.04.3 LTSRelease: 16.04Codename: xenial 2. Update

Install freeradius + radius manager3.9 and lnmpfreeradius in LNMP Environment 1. Install the web environment and use the LNMP one-key installation packageFor detailed installation steps, referHttps://lnmp.org/install.html 2. install components

Linux-install Oracle (CentOS-Oracle 12c) and centos7 install oracle12c Step 1: network connection, which is described in my previous blog. Purpose of network connection: to use the yum command, download the file directly online. Step 2: Go to the

Graphic RAID 0, RAID 1, RAID 5, RAID 10 RAID (Redundant Array of Independent Disk Independent Redundant Disk Array) technology was proposed by the University of California at Berkeley in 1987, initially to combine small cheap disks to replace large

If you want to find the actual geographic location of an IP address on the Earth, you can use many online GeoIp lookup services (such as geoiptool.com ). Most of these online services are supported by a free GeoIP database such as MaxMind. When

I will talk about two tips, one about monitoring switch port traffic and the other about store value. 1. Monitor switch port traffic Switch monitoring document in the production environment on the Internet. Therefore, it is complete, and a key

Create a DOS file system on a low-level formatted disk. If the USE_2M parameter is opened during mtools programming, some parameters related to the 2 M format will function. Otherwise, these parameters (such as S, 2, 1, and M) will not