際際滷

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于亠亟亠仆亳亠 于 GNU/LiNUX
Linux administration course.
January 25, 2020
1  从亠
2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux.
3 亳舒仍亳亰舒亳.
4 亳亳弍亳于 弌 Linux
5 仂仍亠仆亳亠 仗仂仄仂亳.
Linux administration course. 1
1  从亠
2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux.
3 亳舒仍亳亰舒亳.
4 亳亳弍亳于 弌 Linux
5 仂仍亠仆亳亠 仗仂仄仂亳.
Linux administration course. 2
About myself.
Vikentsi Lapa: Software Test Automation Engineer
 10 years hands on experience with
Linux:
 CDN
 Storage systems (DDN), HPC
 Coauthour of Linux Essentials
course (this course)
 Experienced trainer (Linux, Python,
Scratch)
 (MLUG) activist, LVEE speaker
Linux administration course. 2
丶亠仍亠于舒 舒亟亳仂亳
 Windows System Adminstrators
 IT Engineers, DevOps Engineers
 Junior Software Engineers/Software Engineers
 Test Engineers, Test Automation Engineers
 Students
Linux administration course. 3
丶亠仍亠于舒 舒亟亳仂亳
 Windows System Adminstrators
 IT Engineers, DevOps Engineers
 Junior Software Engineers/Software Engineers
 Test Engineers, Test Automation Engineers
 Students
丐亠弍仂于舒仆亳 从 舒仆亳从舒仄:
 仗 舒弍仂  Linux/Unix 仄亠仆亠 亞仂亟舒 亳仍亳 弍亠亰 仂仗舒
 亠仍舒亠仍仆仂: 仂仗 舒弍仂  亳亠仄仂亶 于亳舒仍亳亰舒亳亳
 TCP/IP basic knowledge and network configuration skills
Linux administration course. 3
丶亠仍亠于舒 舒亟亳仂亳
 Windows System Adminstrators
 IT Engineers, DevOps Engineers
 Junior Software Engineers/Software Engineers
 Test Engineers, Test Automation Engineers
 Students
丐亠弍仂于舒仆亳 从 舒仆亳从舒仄:
 仗 舒弍仂  Linux/Unix 仄亠仆亠 亞仂亟舒 亳仍亳 弍亠亰 仂仗舒
 亠仍舒亠仍仆仂: 仂仗 舒弍仂  亳亠仄仂亶 于亳舒仍亳亰舒亳亳
 TCP/IP basic knowledge and network configuration skills
 Engagement is essential: answer to questions, do practical
tasks, do homework, ask questions
Linux administration course. 3
亠仄 亰仆舒从仂仄亳
舒仍亳 亳 舒仗仂仍仂亢亳仍亳, 舒从 仂弍 于亳亟亠 于亠 舒仆亳从仂于
亠仆亳仆亞舒
 舒从 亰仂于?
 亟亠 亳 从舒从 仗仍舒仆亳亠亠 仗亳仄亠仆 亰仆舒仆亳 亳亠仄 Linux?
Linux administration course. 4
亠仄 亰仆舒从仂仄亳
舒亰弍亳仍亳 仆舒 2 从仂仄舒仆亟
 舒亢亟亶 于仗仂仄仆亳 仆亠从仂仍从仂 舒从仂于 仗仂 亳亠仄仆仂亞仂
舒亟仄亳仆亳舒仂舒 (Linux)
 舒仗亳仄亠: 亠亠仍亶, c亠亠仂亳仗, 仗仂于亠亟亠仆亳亠, 仂仂弍亠仆仆仂
仗仂亠亳亳.
 丼亠亠亰 5 仄亳仆 舒于仆亳仄, 仂 仗仂仍亳仍仂  从舒亢亟仂亶 从仂仄舒仆亟.
Linux administration course. 5
Why learning Linux is not so easy?
Your version.
Linux administration course. 6
Tacit knowledge.
Linux administration course. 7
Tacit knowledge.
Linux administration course. 7
Tacit knowledge.
Linux administration course. 7
Tacit knowledge.
Linux administration course. 7
Tacit knowledge.
Linux administration course. 7
亠仆从舒 于仂亰舒舒 亳亠仄 Unix.
舒舒 于亠亳.
Linux administration course. 8
亠仆从舒 于仂亰舒舒 亳亠仄 Unix.
舒舒 于亠亳.
1 $ date +%s # show c u r r e n t date in seconds
2 $ echo $ ( ( $ ( date +%s ) /(60*60*24*365) ) ) # show
years
3 $ date help | grep %s 
Linux administration course. 8
亠仆从舒 于仂亰舒舒 亳亠仄 Unix.
舒舒 于亠亳.
1 $ date +%s # show c u r r e n t date in seconds
2 $ echo $ ( ( $ ( date +%s ) /(60*60*24*365) ) ) # show
years
3 $ date help | grep %s 
Unix systems are characterized by a modular design or Unix
philosophy
 simple tools that each perform a limited,
welldefined function
 shell scripting and command language to
combine the tools to perform complex
workflows
 unified filesystem
Linux administration course. 8
亳仄亠 亳仗仂仍亰仂于舒仆亳 从仂仄舒仆亟仆仂亶 仂从亳
CLI (Command Line Interface)
Linux administration course. 9
亳仄亠 亳仗仂仍亰仂于舒仆亳 从仂仄舒仆亟仆仂亶 仂从亳
CLI (Command Line Interface)
 亳仆亠亠亶 仆舒仂亶从亳
亠亠于仂亞仂 仂弍仂亟仂于舒仆亳
 舒
 从仂仄仗ム亠仆亠 亳亞
 仂仗亠舒亳仂仆仆亠 亳亠仄
Linux administration course. 9
亠亳仄亠于舒 从仂仄舒仆亟仆仂亶 仂从亳
 仗仂仍亰ム 仄舒仍仂 亠仂于
 舒弍仂舒 亠亠亰 亠 仍亳弍仂 RS232, 于 仂仄 亳仍亠 仄亠亟仍亠仆仆
 亶 亟仂仗 从 从仂仄舒仆亟舒仄 亳亠仄
 仍舒亟从舒 仂仂弍亠于仂仄 CLI 仗亳仍仂亢亠仆亳 仗仂亠
 亠亞从仂 舒于仂仄舒亳亰舒亳亳
Linux administration course. 10
亠亟仂舒从亳 从仂仄舒仆亟仆仂亶 仂从亳
 O于ム 于仂亰仄仂亢仆仂亳
仂弍仆舒亢亠仆亳 (discoverabililty)
 于亳亠 束舒仆舒仍仂亞仂于仂亞仂損 于于仂亟舒.
 亠仂弍仂亟亳仄仂 亳亰亠仆亳
亳仆舒从亳舒 从仂仄舒仆亟 亳
亰舒仗仂仄亳仆舒仆亳 仂从舒亠仆亳亶.
(亳仆舒从亳 仄仂亢亠 舒亰仍亳舒)
 亠亰 舒于仂亟仂仗仂仍仆亠仆亳, 于于仂亟
亟仍亳仆仆 亳 仂亟亠亢舒亳
仗亠亳仄于仂仍 仗舒舒仄亠仂于 
从仍舒于亳舒 仄仂亢亠 弍
亰舒亟仆亳亠仍仆仄
Linux administration course. 11
Why learning Linux is not so easy?
弌仍仂亢仆仂亳: CLI 亳仆亠亠亶, 亰仆舒仆亳 仗仂仍舒ム 亠亠亰 仗舒从亳从
亳 仂亳弍从亳, 仄仆仂亞仂 于舒亳舒仆仂于 亠亠仆亳亶, 亠仄亳仆仂仍仂亞亳 (70x, 200x),
仂弍亳仍亳亠 亳仆仂仄舒亳亳 亳 仆亠仗亳于仆舒 亠亟舒.
弍亠仗亠亳 弍亶 舒 于 亠亟亠 GNU/Linux 亟仍
仂仗仆 仗仂仍亰仂于舒亠仍亠亶. 仂仆亳亰亳 仗仂仂亞 于仂亢亟亠仆亳.
舒亟舒 仆舒仗舒于仍亠仆亳亠.Linux administration course. 12
1  从亠
2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux.
3 亳舒仍亳亰舒亳.
4 亳亳弍亳于 弌 Linux
5 仂仍亠仆亳亠 仗仂仄仂亳.
Linux administration course. 13
Operation system functions.
 Is it possible to work without OS?
 Why it is necessary?
 What does OS do?
Linux administration course. 13
舒亟舒亳 磲舒 Linux
 舒亶于亠舒 仂亶于
 仆亳亳舒仍亳亰舒亳
亳亠仄
 丕仗舒于仍亠仆亳亠
 仗仂亠舒仄亳 亳
仗仂仂从舒仄亳
 CPU 亳 仗舒仄
 舒亶仍舒仄亳
 IPC (Inter Process
Communication)
 舒亰亞舒仆亳亠仆亳亠
亟仂仗舒
Linux administration course. 14
1  从亠
2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux.
3 亳舒仍亳亰舒亳.
4 亳亳弍亳于 弌 Linux
5 仂仍亠仆亳亠 仗仂仄仂亳.
Linux administration course. 15
舒亠仄 仆舒仄 仆亢仆舒 亳亠仄舒 于亳舒仍亳亰舒亳亳
 仂亰亟舒 亠亟 于 从仂仂仂亶 亠 仆亠从仂仍从仂 亠于亠仂于
 仂舒于亳 仂仗亠舒亳仂仆仆 亳亠仄 仗仂仍亰仂于舒亠仍 弍亠亰
亳亰仄亠仆亠仆亳亶
 仄仍亳仂于舒 舒弍仂  亠亠于仄亳 仂亶于舒仄亳 亳 仂亳
仂仗仂仍仂亞亳 亠亳
 仗舒舒仍仍亠仍仆仂 舒仆仂于亳 仆亠从仂仍从仂 仂仗亠舒亳仂仆仆 亳亠仄
Linux administration course. 15
仂亠仄 VirtualBox?
 舒弍仂舒亠 于 Windows, Linux, MacOS
 舒仆仂于仍亠仆 亳 仆舒仂亠仆 于 舒亟亳仂亳
  仗亠仗仂亟舒于舒亠仍 亠 仂仗 舒弍仂  仂亶 亳亠仄仂亶
 亠 亞舒亳亠从亳亶 亳仆亠亠亶
 仗仂亟亟亠亢亳于舒亠 亳仆仄亠仆舒亳亠仄 Vagrant
Linux administration course. 16
A nonvirtualized computer
Linux administration course. 17
Hosted virtualization
Linux administration course. 18
VM creation steps
 OS type
 Virtual Machine Name
 Specify disk size, type ( dynamic vs fixed size )
 Default network card type is NAT Network
Linux administration course. 19
Typing special characters
Special key combinations with the Host key (normally the right
Control key)
 Host key to return back to host system from virtual machine
 Host key + Del to send Ctrl+Alt+Del (to reboot the guest);
 Host key + F1 (or other function keys) to simulate Ctrl+Alt+F1
Linux administration course. 20
Virtualbox Network Host Only
 仂亠仆仆亶 DHCP 亠于亠
 仂仗 亳亰 仂 亳亠仄
 仂仗 从 仂亠亟仆亳仄
于亳舒仍仆仄 仄舒亳仆舒仄
Linux administration course. 21
Virtualbox Network Bridge
 亢亠仆 于仆亠仆亳亶 DHCP
亠于亠
 仂仗 于 Internet
 仂仗 亳亰 仂 亳亠仄
 仂仗 从 仂亠亟仆亳仄
于亳舒仍仆仄 仄舒亳仆舒仄
Linux administration course. 22
Virtualbox Internal Network
 仂仗 从 仂亠亟仆亳仄
于亳舒仍仆仄 仄舒亳仆舒仄
Linux administration course. 23
Virtualbox NAT
 仂亠仆仆亶 DHCP 亠于亠
 仂仗 于 Internet
 仂仗 亳亰 仂 亳亠仄
(仂仍从仂 亠亠亰 仗仂弍仂
仗仂仂于)
10.0.2.15  IP 舒亟亠, 于亟舒仆仆亶 于 仂仄 亠亢亳仄亠.
Linux administration course. 24
1  从亠
2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux.
3 亳舒仍亳亰舒亳.
4 亳亳弍亳于 弌 Linux
5 仂仍亠仆亳亠 仗仂仄仂亳.
Linux administration course. 25
GNU/Linux Distibution structure
Linux distro is an operation system.
 Software Collection
 Linux Kernel
 Package Management System (optional)
Linux administration course. 25
舒亰仆仂仂弍舒亰亳亠 Linux 亟亳亳弍亳于仂于 亳 仗仂弍仍亠仄舒
于弍仂舒.
丕亞舒亟舒亶从舒. 弌从仂仍从仂 仗仂 于舒亠仄 仄仆亠仆亳 亠于亠 舒从亳于仆
亟亳亳弍亳于仂于?
Linux administration course. 26
舒亰仆仂仂弍舒亰亳亠 Linux 亟亳亳弍亳于仂于 亳 仗仂弍仍亠仄舒
于弍仂舒.
丕亞舒亟舒亶从舒. 弌从仂仍从仂 仗仂 于舒亠仄 仄仆亠仆亳 亠于亠 舒从亳于仆
亟亳亳弍亳于仂于? 257  仗仂 于亠亳亳 distrowatch.com.
丼仂 亳 从舒从 于弍舒?
Linux administration course. 26
舒亰仆仂仂弍舒亰亳亠 Linux 亟亳亳弍亳于仂于 亳 仗仂弍仍亠仄舒
于弍仂舒.
丕亞舒亟舒亶从舒. 弌从仂仍从仂 仗仂 于舒亠仄 仄仆亠仆亳 亠于亠 舒从亳于仆
亟亳亳弍亳于仂于? 257  仗仂 于亠亳亳 distrowatch.com.
丼仂 亳 从舒从 于弍舒?
亠 亰舒于亳亳 仂 仆舒 舒仄亳.
弍仂 亟亳亳弍亳于舒 仂仗亠亟亠仍磳:
 仆舒亳仄 亢亠仍亠亰仂仄;
 仄亠仆亳亠仄 亳 仂仗仂仄 舒弍仂;
 仆舒亳仄亳 亰舒亟舒舒仄亳;
Linux administration course. 26
弍仂 亟亳亳弍亳于仂于 亟仍 仂弍亠仆亳
Ubuntu (Debian)
CentOS (Redhat)
 舒弍仂舒ム 仆舒 amd64 (舒亠 于亠亳亳 x86), 于 于亳舒仍仆
仄舒亳仆舒;
 舒仗o舒仆亠仆 仆舒 仗仂亠从舒 亰舒从舒亰亳从仂于;
 亳亟亠舒仍仆仂 仗仂亟仂亟 亟仍 仂弍亠仆亳: 亟亢亠于亠仆仆 从
仗仂仍亰仂于舒亠仍, 仗仂 于 舒仆仂于从亠 亳 仆舒仂亶从亠;
  仄亠仆 亠 仂仗 舒弍仂  仂弍仂亳仄亳 亟亳亳弍亳于舒仄亳;
Linux administration course. 27
亳仄亠 仗仂仗仍仆 Linux 亟亳亳弍亳于仂于.
 RedHat
 Fedora Core
 CentOS
 Scientific Linux
 Oracle Unbreakable
Linux
 Slackware
 Gentoo
 Arch
 OpenSUSE
 ALT Linux
 Debian
 Ubuntu
 Mint
 Knoppix
 BackTrack
Linux administration course. 28
舒亰仍亳亳 仄亠亢亟 亟亳亳弍亳于舒仄亳.
 仂 仆舒亰仆舒亠仆亳
亠于亠仆亶 亳仍亳
亟亠从仂仗仆亶, 亟仍
舒亰舒弍仂亳从仂于, 仂弍仆
仗仂仍亰仂于舒亠仍亠亶;
 仂 从仂仂亳 仂弍仆仂于仍亠仆亳:
舒弍亳仍仆亶 亳仍亳
仂弍仆仂于仍ム亳亶;
 仂亟亟亠亢亳于舒亠仄亠
舒亳亠从
 弌亳亠仄舒 仗舒于仍亠仆亳
仗舒从亠舒仄亳 (仄仂亢亠
仂于仂于舒)
 亳 从 舒亶仍舒仄
 仆舒仍仍仂, 仗亠于亳仆亠
仆舒仂亶从亳
 弌亠亟于舒 仗舒于仍亠仆亳
 舒弍仂 , 于亠亳亳 
Linux administration course. 29
弌仂亟于仂 仄亠亢亟 亟亳亳弍亳于舒仄亳.
 OS Linux 磦仍磳 Unixlike OS;
 Linux API 仂于仄亠亳仄 仂 舒仆亟舒仂仄 POSIX, Single UNIX
Specification (SUS);
 弌舒仆亟舒仆亶 仆舒弍仂 从仂仄舒仆亟 亳 舒亞仄亠仆仂于 亟仂仗仆亶 亳亰
亳仆亠舒从亳于仆仂亶 仂弍仂仍仂从亳;
 舒仗仂仍仂亢亠仆亳亠 亳 仆舒亰于舒仆亳亠 舒亶仍仂于;
Linux administration course. 30
丕舒仆仂于从舒  ISO 仂弍舒亰舒
丼仂 仄仂亢仆仂 从舒亰舒 仂 亟亳亳弍亳于亠 仗仂 亳仄亠仆亳 仂弍舒亰舒?
1 debian8.5.0amd64netinst.iso
2 CentOS7x86_64DVD.iso
3 debian8.5.0powerpcDVD1.iso
4 openSUSELeap42.1DVDx86_64.iso
5 archlinux2016.08.01dual.iso
Linux administration course. 31
Installation steps
Ubuntu
 time and language
 hostname
 sudo user/password
 partition
 proxy
 updates
 software choosing
 boot loader (GRUB)
CentOS
 localization
 software choosing
 partition/network
 root password
Linux administration course. 32
仂仍亰仂于舒亠仍从舒 亠亳
仆仂亞仂仗仂仍亰仂于舒亠仍从舒 亳亠仄舒?
舒亟仂 仗亠亟舒于亳 亳亠仄亠. 仂亞亳仆 亳 仗舒仂仍.
Linux administration course. 33
仂仍亰仂于舒亠仍从舒 亠亳
仆仂亞仂仗仂仍亰仂于舒亠仍从舒 亳亠仄舒?
舒亟仂 仗亠亟舒于亳 亳亠仄亠. 仂亞亳仆 亳 仗舒仂仍.
舒从 仄仂亢亠 于亞仍磲亠
Linux administration course. 33
仂仍亰仂于舒亠仍从舒 亠亳
仆仂亞仂仗仂仍亰仂于舒亠仍从舒 亳亠仄舒?
舒亟仂 仗亠亟舒于亳 亳亠仄亠. 仂亞亳仆 亳 仗舒仂仍.
舒从 仄仂亢亠 于亞仍磲亠
亳亟 亠亳亶
 仍仂从舒仍仆亠 亳 亟舒仍仆仆亠 (亠亠于亠)
 亠从仂于亠 亳 亞舒亳亠从亳亠
Linux administration course. 33
Secure Shell (SSH)
Used for:
 execute commands
 copy files (SFTP, SCP)
 forwarding TCP ports and X11 connections
 tunneling
SSH uses the clientserver model
The standard TCP port 22
Linux administration course. 34
仂亟亳仄 亟舒仍仆仆仂.
仆仂亞仂 亠舒仍亳亰舒亳亶 从仍亳亠仆仂于 亳 亠于亠仂于.
舒从 仄仂亢亠 于亞仍磲亠:
Linux administration course. 35
SSH address
Access parameters
IP address: 192.168.10.10
Username: root, val, user
Port: 22 default or any
Full path: root@192.168.10.10:22
Linux administration course. 36
仂仆亳亞舒亳 从仍亳亠仆舒
Linux: .ssh/config
1 Host updateserver
2 Port 8022
3 User k9repo
4 IdentityFile ~ / . ssh / git_rsa
5
6 Host mailtunnel
7 HostName mail . my_isp . net
8 LocalForward 2525: localhost :25
9 GatewayPorts no
10
11 Host elinux
12 User MINSK  vshakhov
13 ForwardX11 yes
14 PreferredAuthentications publickey
Windows: PuTTY session
Linux administration course. 37
仂亟 亳亰 仄舒亳
Linux administration course. 38
仂亟 亳亰 仄舒亳
 仂仄舒仆亟舒 exit, 从仂仄舒仆亟舒 shell logout
 Hotkey Ctrl+d
 舒从 从仍亳亠仆
Linux administration course. 38
1  从亠
2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux.
3 亳舒仍亳亰舒亳.
4 亳亳弍亳于 弌 Linux
5 仂仍亠仆亳亠 仗仂仄仂亳.
Linux administration course. 39
From FAQ How To Ask Questions The Smart Way
Before You Ask try to find an answer
 by reading (RTFM): manual, FAQ, archives of the forum, by
searching the Web;
 by inspection or experimentation;
 by asking a skilled friend;
 by reading the source code;
Linux administration course. 39
仂亠仆仆舒 亟仂从仄亠仆舒亳
 man  仗仂仄仂 仗仂 于仆亠仆亳仄 从仂仄舒仆亟舒仄
Linux administration course. 40
仂亠仆仆舒 亟仂从仄亠仆舒亳
 man  仗仂仄仂 仗仂 于仆亠仆亳仄 从仂仄舒仆亟舒仄
 info  舒亳亠仆仆舒 仗仂仄仂 仗仂 仆亠从仂仂仄 从仂仄舒仆亟舒仄
(texinfo format)
Linux administration course. 40
仂亠仆仆舒 亟仂从仄亠仆舒亳
 man  仗仂仄仂 仗仂 于仆亠仆亳仄 从仂仄舒仆亟舒仄
 info  舒亳亠仆仆舒 仗仂仄仂 仗仂 仆亠从仂仂仄 从仂仄舒仆亟舒仄
(texinfo format)
 find /usr/share/doc/  舒亶仍 亟仂从仄亠仆舒亳亳 仗仂舒于仍磳仄亠
于仄亠亠  仗亳仍仂亢亠仆亳亠仄 (仗亳仄亠 从仂仆亳亞仂于, README)
 h, help option  于仂亠仆仆舒 于 仗亳仍仂亢亠仆亳亠 仗舒于从舒
 help  于仂亠仆仆舒 仗仂仄仂 仗仂 于仆亠仆仆亳仄 从仂仄舒仆亟舒仄 bash
(舒从亢亠 man bash)
Linux administration course. 40
仆仂于仆仂亠 仂 man
man <command_name>
Example: show uptime manual page
man man
 仂亳舒亶亠 man man !
Linux administration course. 41
man page navigation
 up, down  scroll one line
 q  exit
 /pattern  search pattern
 n  next text pattern
 N  repeat search in back direction
 h  help
Linux administration course. 42
Page structure
 NAME
 SYNOPSIS
 DESCRIPTION
 EXAMPLES
 SEE ALSO
Linux administration course. 43
舒亰亟亠仍 仗仂仄仂亳
1 仆仂于仆舒 亠从亳(ミ経却从亳亠 仗仂亞舒仄仄)
2 Syscalls
3 弌 library
5 仂仆亳亞舒亳仂仆仆亠 舒亶仍
8 Sysadmih commands
Linux administration course. 44
More than one section of the manual
name(section)
man(1) and man(7), or exit(2) and exit(3)
Example: show manual in section 5 and 1
1 man f passwd # or whatis passwd
2 man 5 passwd ; man 1 passwd ; man wa passwd
Linux administration course. 45
仂亳从 仗仂 舒仆亳舒仄 仗仂仄仂亳
丕仗舒亢仆亠仆亳亠. 仂亳从 舒仆亳  从仍ム亠于仄 仍仂于仂仄.
1 man f passwd # or whatis passwd
2 man k passwd # or apropos passwd
3 whatis l w  * 
4 man s 3 Kw passwd
Linux administration course. 46

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01 linux-course

  • 1. 于亠亟亠仆亳亠 于 GNU/LiNUX Linux administration course. January 25, 2020
  • 2. 1 从亠 2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux. 3 亳舒仍亳亰舒亳. 4 亳亳弍亳于 弌 Linux 5 仂仍亠仆亳亠 仗仂仄仂亳. Linux administration course. 1
  • 3. 1 从亠 2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux. 3 亳舒仍亳亰舒亳. 4 亳亳弍亳于 弌 Linux 5 仂仍亠仆亳亠 仗仂仄仂亳. Linux administration course. 2
  • 4. About myself. Vikentsi Lapa: Software Test Automation Engineer 10 years hands on experience with Linux: CDN Storage systems (DDN), HPC Coauthour of Linux Essentials course (this course) Experienced trainer (Linux, Python, Scratch) (MLUG) activist, LVEE speaker Linux administration course. 2
  • 5. 丶亠仍亠于舒 舒亟亳仂亳 Windows System Adminstrators IT Engineers, DevOps Engineers Junior Software Engineers/Software Engineers Test Engineers, Test Automation Engineers Students Linux administration course. 3
  • 6. 丶亠仍亠于舒 舒亟亳仂亳 Windows System Adminstrators IT Engineers, DevOps Engineers Junior Software Engineers/Software Engineers Test Engineers, Test Automation Engineers Students 丐亠弍仂于舒仆亳 从 舒仆亳从舒仄: 仗 舒弍仂 Linux/Unix 仄亠仆亠 亞仂亟舒 亳仍亳 弍亠亰 仂仗舒 亠仍舒亠仍仆仂: 仂仗 舒弍仂 亳亠仄仂亶 于亳舒仍亳亰舒亳亳 TCP/IP basic knowledge and network configuration skills Linux administration course. 3
  • 7. 丶亠仍亠于舒 舒亟亳仂亳 Windows System Adminstrators IT Engineers, DevOps Engineers Junior Software Engineers/Software Engineers Test Engineers, Test Automation Engineers Students 丐亠弍仂于舒仆亳 从 舒仆亳从舒仄: 仗 舒弍仂 Linux/Unix 仄亠仆亠 亞仂亟舒 亳仍亳 弍亠亰 仂仗舒 亠仍舒亠仍仆仂: 仂仗 舒弍仂 亳亠仄仂亶 于亳舒仍亳亰舒亳亳 TCP/IP basic knowledge and network configuration skills Engagement is essential: answer to questions, do practical tasks, do homework, ask questions Linux administration course. 3
  • 8. 亠仄 亰仆舒从仂仄亳 舒仍亳 亳 舒仗仂仍仂亢亳仍亳, 舒从 仂弍 于亳亟亠 于亠 舒仆亳从仂于 亠仆亳仆亞舒 舒从 亰仂于? 亟亠 亳 从舒从 仗仍舒仆亳亠亠 仗亳仄亠仆 亰仆舒仆亳 亳亠仄 Linux? Linux administration course. 4
  • 9. 亠仄 亰仆舒从仂仄亳 舒亰弍亳仍亳 仆舒 2 从仂仄舒仆亟 舒亢亟亶 于仗仂仄仆亳 仆亠从仂仍从仂 舒从仂于 仗仂 亳亠仄仆仂亞仂 舒亟仄亳仆亳舒仂舒 (Linux) 舒仗亳仄亠: 亠亠仍亶, c亠亠仂亳仗, 仗仂于亠亟亠仆亳亠, 仂仂弍亠仆仆仂 仗仂亠亳亳. 丼亠亠亰 5 仄亳仆 舒于仆亳仄, 仂 仗仂仍亳仍仂 从舒亢亟仂亶 从仂仄舒仆亟. Linux administration course. 5
  • 10. Why learning Linux is not so easy? Your version. Linux administration course. 6
  • 16. 亠仆从舒 于仂亰舒舒 亳亠仄 Unix. 舒舒 于亠亳. Linux administration course. 8
  • 17. 亠仆从舒 于仂亰舒舒 亳亠仄 Unix. 舒舒 于亠亳. 1 $ date +%s # show c u r r e n t date in seconds 2 $ echo $ ( ( $ ( date +%s ) /(60*60*24*365) ) ) # show years 3 $ date help | grep %s Linux administration course. 8
  • 18. 亠仆从舒 于仂亰舒舒 亳亠仄 Unix. 舒舒 于亠亳. 1 $ date +%s # show c u r r e n t date in seconds 2 $ echo $ ( ( $ ( date +%s ) /(60*60*24*365) ) ) # show years 3 $ date help | grep %s Unix systems are characterized by a modular design or Unix philosophy simple tools that each perform a limited, welldefined function shell scripting and command language to combine the tools to perform complex workflows unified filesystem Linux administration course. 8
  • 19. 亳仄亠 亳仗仂仍亰仂于舒仆亳 从仂仄舒仆亟仆仂亶 仂从亳 CLI (Command Line Interface) Linux administration course. 9
  • 20. 亳仄亠 亳仗仂仍亰仂于舒仆亳 从仂仄舒仆亟仆仂亶 仂从亳 CLI (Command Line Interface) 亳仆亠亠亶 仆舒仂亶从亳 亠亠于仂亞仂 仂弍仂亟仂于舒仆亳 舒 从仂仄仗ム亠仆亠 亳亞 仂仗亠舒亳仂仆仆亠 亳亠仄 Linux administration course. 9
  • 21. 亠亳仄亠于舒 从仂仄舒仆亟仆仂亶 仂从亳 仗仂仍亰ム 仄舒仍仂 亠仂于 舒弍仂舒 亠亠亰 亠 仍亳弍仂 RS232, 于 仂仄 亳仍亠 仄亠亟仍亠仆仆 亶 亟仂仗 从 从仂仄舒仆亟舒仄 亳亠仄 仍舒亟从舒 仂仂弍亠于仂仄 CLI 仗亳仍仂亢亠仆亳 仗仂亠 亠亞从仂 舒于仂仄舒亳亰舒亳亳 Linux administration course. 10
  • 22. 亠亟仂舒从亳 从仂仄舒仆亟仆仂亶 仂从亳 O于ム 于仂亰仄仂亢仆仂亳 仂弍仆舒亢亠仆亳 (discoverabililty) 于亳亠 束舒仆舒仍仂亞仂于仂亞仂損 于于仂亟舒. 亠仂弍仂亟亳仄仂 亳亰亠仆亳 亳仆舒从亳舒 从仂仄舒仆亟 亳 亰舒仗仂仄亳仆舒仆亳 仂从舒亠仆亳亶. (亳仆舒从亳 仄仂亢亠 舒亰仍亳舒) 亠亰 舒于仂亟仂仗仂仍仆亠仆亳, 于于仂亟 亟仍亳仆仆 亳 仂亟亠亢舒亳 仗亠亳仄于仂仍 仗舒舒仄亠仂于 从仍舒于亳舒 仄仂亢亠 弍 亰舒亟仆亳亠仍仆仄 Linux administration course. 11
  • 23. Why learning Linux is not so easy? 弌仍仂亢仆仂亳: CLI 亳仆亠亠亶, 亰仆舒仆亳 仗仂仍舒ム 亠亠亰 仗舒从亳从 亳 仂亳弍从亳, 仄仆仂亞仂 于舒亳舒仆仂于 亠亠仆亳亶, 亠仄亳仆仂仍仂亞亳 (70x, 200x), 仂弍亳仍亳亠 亳仆仂仄舒亳亳 亳 仆亠仗亳于仆舒 亠亟舒. 弍亠仗亠亳 弍亶 舒 于 亠亟亠 GNU/Linux 亟仍 仂仗仆 仗仂仍亰仂于舒亠仍亠亶. 仂仆亳亰亳 仗仂仂亞 于仂亢亟亠仆亳. 舒亟舒 仆舒仗舒于仍亠仆亳亠.Linux administration course. 12
  • 24. 1 从亠 2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux. 3 亳舒仍亳亰舒亳. 4 亳亳弍亳于 弌 Linux 5 仂仍亠仆亳亠 仗仂仄仂亳. Linux administration course. 13
  • 25. Operation system functions. Is it possible to work without OS? Why it is necessary? What does OS do? Linux administration course. 13
  • 26. 舒亟舒亳 磲舒 Linux 舒亶于亠舒 仂亶于 仆亳亳舒仍亳亰舒亳 亳亠仄 丕仗舒于仍亠仆亳亠 仗仂亠舒仄亳 亳 仗仂仂从舒仄亳 CPU 亳 仗舒仄 舒亶仍舒仄亳 IPC (Inter Process Communication) 舒亰亞舒仆亳亠仆亳亠 亟仂仗舒 Linux administration course. 14
  • 27. 1 从亠 2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux. 3 亳舒仍亳亰舒亳. 4 亳亳弍亳于 弌 Linux 5 仂仍亠仆亳亠 仗仂仄仂亳. Linux administration course. 15
  • 28. 舒亠仄 仆舒仄 仆亢仆舒 亳亠仄舒 于亳舒仍亳亰舒亳亳 仂亰亟舒 亠亟 于 从仂仂仂亶 亠 仆亠从仂仍从仂 亠于亠仂于 仂舒于亳 仂仗亠舒亳仂仆仆 亳亠仄 仗仂仍亰仂于舒亠仍 弍亠亰 亳亰仄亠仆亠仆亳亶 仄仍亳仂于舒 舒弍仂 亠亠于仄亳 仂亶于舒仄亳 亳 仂亳 仂仗仂仍仂亞亳 亠亳 仗舒舒仍仍亠仍仆仂 舒仆仂于亳 仆亠从仂仍从仂 仂仗亠舒亳仂仆仆 亳亠仄 Linux administration course. 15
  • 29. 仂亠仄 VirtualBox? 舒弍仂舒亠 于 Windows, Linux, MacOS 舒仆仂于仍亠仆 亳 仆舒仂亠仆 于 舒亟亳仂亳 仗亠仗仂亟舒于舒亠仍 亠 仂仗 舒弍仂 仂亶 亳亠仄仂亶 亠 亞舒亳亠从亳亶 亳仆亠亠亶 仗仂亟亟亠亢亳于舒亠 亳仆仄亠仆舒亳亠仄 Vagrant Linux administration course. 16
  • 30. A nonvirtualized computer Linux administration course. 17
  • 32. VM creation steps OS type Virtual Machine Name Specify disk size, type ( dynamic vs fixed size ) Default network card type is NAT Network Linux administration course. 19
  • 33. Typing special characters Special key combinations with the Host key (normally the right Control key) Host key to return back to host system from virtual machine Host key + Del to send Ctrl+Alt+Del (to reboot the guest); Host key + F1 (or other function keys) to simulate Ctrl+Alt+F1 Linux administration course. 20
  • 34. Virtualbox Network Host Only 仂亠仆仆亶 DHCP 亠于亠 仂仗 亳亰 仂 亳亠仄 仂仗 从 仂亠亟仆亳仄 于亳舒仍仆仄 仄舒亳仆舒仄 Linux administration course. 21
  • 35. Virtualbox Network Bridge 亢亠仆 于仆亠仆亳亶 DHCP 亠于亠 仂仗 于 Internet 仂仗 亳亰 仂 亳亠仄 仂仗 从 仂亠亟仆亳仄 于亳舒仍仆仄 仄舒亳仆舒仄 Linux administration course. 22
  • 36. Virtualbox Internal Network 仂仗 从 仂亠亟仆亳仄 于亳舒仍仆仄 仄舒亳仆舒仄 Linux administration course. 23
  • 37. Virtualbox NAT 仂亠仆仆亶 DHCP 亠于亠 仂仗 于 Internet 仂仗 亳亰 仂 亳亠仄 (仂仍从仂 亠亠亰 仗仂弍仂 仗仂仂于) 10.0.2.15 IP 舒亟亠, 于亟舒仆仆亶 于 仂仄 亠亢亳仄亠. Linux administration course. 24
  • 38. 1 从亠 2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux. 3 亳舒仍亳亰舒亳. 4 亳亳弍亳于 弌 Linux 5 仂仍亠仆亳亠 仗仂仄仂亳. Linux administration course. 25
  • 39. GNU/Linux Distibution structure Linux distro is an operation system. Software Collection Linux Kernel Package Management System (optional) Linux administration course. 25
  • 40. 舒亰仆仂仂弍舒亰亳亠 Linux 亟亳亳弍亳于仂于 亳 仗仂弍仍亠仄舒 于弍仂舒. 丕亞舒亟舒亶从舒. 弌从仂仍从仂 仗仂 于舒亠仄 仄仆亠仆亳 亠于亠 舒从亳于仆 亟亳亳弍亳于仂于? Linux administration course. 26
  • 41. 舒亰仆仂仂弍舒亰亳亠 Linux 亟亳亳弍亳于仂于 亳 仗仂弍仍亠仄舒 于弍仂舒. 丕亞舒亟舒亶从舒. 弌从仂仍从仂 仗仂 于舒亠仄 仄仆亠仆亳 亠于亠 舒从亳于仆 亟亳亳弍亳于仂于? 257 仗仂 于亠亳亳 distrowatch.com. 丼仂 亳 从舒从 于弍舒? Linux administration course. 26
  • 42. 舒亰仆仂仂弍舒亰亳亠 Linux 亟亳亳弍亳于仂于 亳 仗仂弍仍亠仄舒 于弍仂舒. 丕亞舒亟舒亶从舒. 弌从仂仍从仂 仗仂 于舒亠仄 仄仆亠仆亳 亠于亠 舒从亳于仆 亟亳亳弍亳于仂于? 257 仗仂 于亠亳亳 distrowatch.com. 丼仂 亳 从舒从 于弍舒? 亠 亰舒于亳亳 仂 仆舒 舒仄亳. 弍仂 亟亳亳弍亳于舒 仂仗亠亟亠仍磳: 仆舒亳仄 亢亠仍亠亰仂仄; 仄亠仆亳亠仄 亳 仂仗仂仄 舒弍仂; 仆舒亳仄亳 亰舒亟舒舒仄亳; Linux administration course. 26
  • 43. 弍仂 亟亳亳弍亳于仂于 亟仍 仂弍亠仆亳 Ubuntu (Debian) CentOS (Redhat) 舒弍仂舒ム 仆舒 amd64 (舒亠 于亠亳亳 x86), 于 于亳舒仍仆 仄舒亳仆舒; 舒仗o舒仆亠仆 仆舒 仗仂亠从舒 亰舒从舒亰亳从仂于; 亳亟亠舒仍仆仂 仗仂亟仂亟 亟仍 仂弍亠仆亳: 亟亢亠于亠仆仆 从 仗仂仍亰仂于舒亠仍, 仗仂 于 舒仆仂于从亠 亳 仆舒仂亶从亠; 仄亠仆 亠 仂仗 舒弍仂 仂弍仂亳仄亳 亟亳亳弍亳于舒仄亳; Linux administration course. 27
  • 44. 亳仄亠 仗仂仗仍仆 Linux 亟亳亳弍亳于仂于. RedHat Fedora Core CentOS Scientific Linux Oracle Unbreakable Linux Slackware Gentoo Arch OpenSUSE ALT Linux Debian Ubuntu Mint Knoppix BackTrack Linux administration course. 28
  • 45. 舒亰仍亳亳 仄亠亢亟 亟亳亳弍亳于舒仄亳. 仂 仆舒亰仆舒亠仆亳 亠于亠仆亶 亳仍亳 亟亠从仂仗仆亶, 亟仍 舒亰舒弍仂亳从仂于, 仂弍仆 仗仂仍亰仂于舒亠仍亠亶; 仂 从仂仂亳 仂弍仆仂于仍亠仆亳: 舒弍亳仍仆亶 亳仍亳 仂弍仆仂于仍ム亳亶; 仂亟亟亠亢亳于舒亠仄亠 舒亳亠从 弌亳亠仄舒 仗舒于仍亠仆亳 仗舒从亠舒仄亳 (仄仂亢亠 仂于仂于舒) 亳 从 舒亶仍舒仄 仆舒仍仍仂, 仗亠于亳仆亠 仆舒仂亶从亳 弌亠亟于舒 仗舒于仍亠仆亳 舒弍仂 , 于亠亳亳 Linux administration course. 29
  • 46. 弌仂亟于仂 仄亠亢亟 亟亳亳弍亳于舒仄亳. OS Linux 磦仍磳 Unixlike OS; Linux API 仂于仄亠亳仄 仂 舒仆亟舒仂仄 POSIX, Single UNIX Specification (SUS); 弌舒仆亟舒仆亶 仆舒弍仂 从仂仄舒仆亟 亳 舒亞仄亠仆仂于 亟仂仗仆亶 亳亰 亳仆亠舒从亳于仆仂亶 仂弍仂仍仂从亳; 舒仗仂仍仂亢亠仆亳亠 亳 仆舒亰于舒仆亳亠 舒亶仍仂于; Linux administration course. 30
  • 47. 丕舒仆仂于从舒 ISO 仂弍舒亰舒 丼仂 仄仂亢仆仂 从舒亰舒 仂 亟亳亳弍亳于亠 仗仂 亳仄亠仆亳 仂弍舒亰舒? 1 debian8.5.0amd64netinst.iso 2 CentOS7x86_64DVD.iso 3 debian8.5.0powerpcDVD1.iso 4 openSUSELeap42.1DVDx86_64.iso 5 archlinux2016.08.01dual.iso Linux administration course. 31
  • 48. Installation steps Ubuntu time and language hostname sudo user/password partition proxy updates software choosing boot loader (GRUB) CentOS localization software choosing partition/network root password Linux administration course. 32
  • 49. 仂仍亰仂于舒亠仍从舒 亠亳 仆仂亞仂仗仂仍亰仂于舒亠仍从舒 亳亠仄舒? 舒亟仂 仗亠亟舒于亳 亳亠仄亠. 仂亞亳仆 亳 仗舒仂仍. Linux administration course. 33
  • 50. 仂仍亰仂于舒亠仍从舒 亠亳 仆仂亞仂仗仂仍亰仂于舒亠仍从舒 亳亠仄舒? 舒亟仂 仗亠亟舒于亳 亳亠仄亠. 仂亞亳仆 亳 仗舒仂仍. 舒从 仄仂亢亠 于亞仍磲亠 Linux administration course. 33
  • 51. 仂仍亰仂于舒亠仍从舒 亠亳 仆仂亞仂仗仂仍亰仂于舒亠仍从舒 亳亠仄舒? 舒亟仂 仗亠亟舒于亳 亳亠仄亠. 仂亞亳仆 亳 仗舒仂仍. 舒从 仄仂亢亠 于亞仍磲亠 亳亟 亠亳亶 仍仂从舒仍仆亠 亳 亟舒仍仆仆亠 (亠亠于亠) 亠从仂于亠 亳 亞舒亳亠从亳亠 Linux administration course. 33
  • 52. Secure Shell (SSH) Used for: execute commands copy files (SFTP, SCP) forwarding TCP ports and X11 connections tunneling SSH uses the clientserver model The standard TCP port 22 Linux administration course. 34
  • 53. 仂亟亳仄 亟舒仍仆仆仂. 仆仂亞仂 亠舒仍亳亰舒亳亶 从仍亳亠仆仂于 亳 亠于亠仂于. 舒从 仄仂亢亠 于亞仍磲亠: Linux administration course. 35
  • 54. SSH address Access parameters IP address: 192.168.10.10 Username: root, val, user Port: 22 default or any Full path: root@192.168.10.10:22 Linux administration course. 36
  • 55. 仂仆亳亞舒亳 从仍亳亠仆舒 Linux: .ssh/config 1 Host updateserver 2 Port 8022 3 User k9repo 4 IdentityFile ~ / . ssh / git_rsa 5 6 Host mailtunnel 7 HostName mail . my_isp . net 8 LocalForward 2525: localhost :25 9 GatewayPorts no 10 11 Host elinux 12 User MINSK vshakhov 13 ForwardX11 yes 14 PreferredAuthentications publickey Windows: PuTTY session Linux administration course. 37
  • 56. 仂亟 亳亰 仄舒亳 Linux administration course. 38
  • 57. 仂亟 亳亰 仄舒亳 仂仄舒仆亟舒 exit, 从仂仄舒仆亟舒 shell logout Hotkey Ctrl+d 舒从 从仍亳亠仆 Linux administration course. 38
  • 58. 1 从亠 2 亳亠从舒 仂仗亠舒亳仂仆仆仂亶 亳亠仄 Linux. 3 亳舒仍亳亰舒亳. 4 亳亳弍亳于 弌 Linux 5 仂仍亠仆亳亠 仗仂仄仂亳. Linux administration course. 39
  • 59. From FAQ How To Ask Questions The Smart Way Before You Ask try to find an answer by reading (RTFM): manual, FAQ, archives of the forum, by searching the Web; by inspection or experimentation; by asking a skilled friend; by reading the source code; Linux administration course. 39
  • 60. 仂亠仆仆舒 亟仂从仄亠仆舒亳 man 仗仂仄仂 仗仂 于仆亠仆亳仄 从仂仄舒仆亟舒仄 Linux administration course. 40
  • 61. 仂亠仆仆舒 亟仂从仄亠仆舒亳 man 仗仂仄仂 仗仂 于仆亠仆亳仄 从仂仄舒仆亟舒仄 info 舒亳亠仆仆舒 仗仂仄仂 仗仂 仆亠从仂仂仄 从仂仄舒仆亟舒仄 (texinfo format) Linux administration course. 40
  • 62. 仂亠仆仆舒 亟仂从仄亠仆舒亳 man 仗仂仄仂 仗仂 于仆亠仆亳仄 从仂仄舒仆亟舒仄 info 舒亳亠仆仆舒 仗仂仄仂 仗仂 仆亠从仂仂仄 从仂仄舒仆亟舒仄 (texinfo format) find /usr/share/doc/ 舒亶仍 亟仂从仄亠仆舒亳亳 仗仂舒于仍磳仄亠 于仄亠亠 仗亳仍仂亢亠仆亳亠仄 (仗亳仄亠 从仂仆亳亞仂于, README) h, help option 于仂亠仆仆舒 于 仗亳仍仂亢亠仆亳亠 仗舒于从舒 help 于仂亠仆仆舒 仗仂仄仂 仗仂 于仆亠仆仆亳仄 从仂仄舒仆亟舒仄 bash (舒从亢亠 man bash) Linux administration course. 40
  • 63. 仆仂于仆仂亠 仂 man man <command_name> Example: show uptime manual page man man 仂亳舒亶亠 man man ! Linux administration course. 41
  • 64. man page navigation up, down scroll one line q exit /pattern search pattern n next text pattern N repeat search in back direction h help Linux administration course. 42
  • 65. Page structure NAME SYNOPSIS DESCRIPTION EXAMPLES SEE ALSO Linux administration course. 43
  • 66. 舒亰亟亠仍 仗仂仄仂亳 1 仆仂于仆舒 亠从亳(ミ経却从亳亠 仗仂亞舒仄仄) 2 Syscalls 3 弌 library 5 仂仆亳亞舒亳仂仆仆亠 舒亶仍 8 Sysadmih commands Linux administration course. 44
  • 67. More than one section of the manual name(section) man(1) and man(7), or exit(2) and exit(3) Example: show manual in section 5 and 1 1 man f passwd # or whatis passwd 2 man 5 passwd ; man 1 passwd ; man wa passwd Linux administration course. 45
  • 68. 仂亳从 仗仂 舒仆亳舒仄 仗仂仄仂亳 丕仗舒亢仆亠仆亳亠. 仂亳从 舒仆亳 从仍ム亠于仄 仍仂于仂仄. 1 man f passwd # or whatis passwd 2 man k passwd # or apropos passwd 3 whatis l w * 4 man s 3 Kw passwd Linux administration course. 46