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  • Ssh швейцарский нож системного администратора Арутюнян Сурен


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    НазваниеSsh швейцарский нож системного администратора Арутюнян Сурен
    Дата18.01.2023
    Размер1.83 Mb.
    Формат файлаpptx
    Имя файлаssh.pptx
    ТипПротокол
    #892618

       SSH – швейцарский нож системного администратора

    Арутюнян Сурен

    ПИПЭ 15

    Что такое SSH?


    SSH — это защищённый протокол, по которому компьютеры могут отправлять друг другу команды и данные. В нашем случае с помощью SSH можно удалённо управлять каким-нибудь компьютером: давать ему команды, исполнять на нём программы и делать всё, что позволит нам командная строка. Если удалось связаться с компьютером по SSH, то это как будто вы подключили к удалённому компьютеру свою клавиатуру.

    Пример


    Представим ситуацию: вы работаете в Москве, ваш заказчик — в Санкт-Петербурге, и у него сломался интернет-магазин на собственном сервере.

    Тут два варианта: можно физически приехать в нужный город, подключить клавиатуру к серверу и исправить всё на месте. А можно подключиться к серверу удалённо по SSH и исправлять все ошибки, попивая сок у себя в квартире (в Москве).

    Что можно сделать с помощью SSH


    SSH

    Настраивать сервер;

    Программировать;

    Чинить неисправности на сайте;

    Запускать и останавливать программы, в том числе намертво зависшие;

    Копировать файлы;

    Управлять настройками безопасности;

    SSH

    Перезагружать компьютер;

    Отформатировать какой-нибудь диск;

    Устанавливать всё, что угодно;

    Забрать файл с удалённого компьютера или закинуть туда свой файл;

    Открыть этот файл удаленно;

    И Т.Д.

    Командная строка


    Физический интерфейс

    04

    Голосовой интерфейс

    03

    Командная строка

    02

    Графический интерфейс 

    01

    SSH-соединение

    Steampunk infographics


    Mercury

    Venus

    Jupiter

    Venus is the second planet from the Sun

    Mercury is the smallest planet of them all

    Mars

    Mercury is the closest planet to the Sun

    Ceres is located in the asteroid belt

    Saturn

    Pluto is now considered a dwarf planet

    Jupiter is the biggest planet of them all

    Neptune is the farthest planet from the Sun. It's also the fourth-largest planet by diameter in the Solar System

    Steampunk infographics


    01

    Jupiter

    Jupiter is the biggest planet in the Solar System

    02

    Mercury

    Mercury is the smallest planet in the Solar System

    03

    Venus

    Venus is extremely hot, even more than Mercury

    04

    Earth

    Earth is the only planet known to harbor life

    Steampunk infographics


    Venus has a beautiful name, but also high temperatures

    Venus

    Despite being red, Mars is actually a cold place

    Mars

    Jupiter is the biggest planet in the Solar System

    Jupiter

    Saturn is the second-largest planet in the Solar System

    Saturn

    Steampunk infographics


    Mercury is the smallest planet in the Solar System

    Mercury

    Earth is the only planet known to harbor life

    Earth

    Despite being red, Mars is very cold

    Mars

    It's located in the main asteroid belt

    Ceres

    Saturn is a gas giant and has rings

    Saturn

    Neptune is very far away from us

    Neptune

    Steampunk infographics


    It's the only planet that harbors life

    Earth

    Jupiter doesn’t have a solid surface

    Jupiter

    Despite being red, Mars is very cold

    Mars

    Venus has a beautiful name

    Venus

    Steampunk infographics


    Jupiter is the biggest planet of them all

    Jupiter

    Mercury is the closest planet to the Sun

    Mercury

    Venus is the second planet from the Sun

    Venus

    Saturn is a gas giant and has several rings

    Saturn

    Steampunk infographics


    Do it

    Venus

    Earth is a planet that harbors life

    Ceres

    It's located in the main asteroid belt

    Don't do it

    Mars

    Despite being red, Mars is very cold

    Mercury

    It's the closest planet to the Sun

    Steampunk infographics


    Follow the link in the graph to modify its data and then paste the new one here. For more info, click here

    Mars

    Mars is actually a very cold place

    100%

    Saturn is a gas giant and has several rings

    Saturn

    30%

    It’s the farthest planet from the Sun

    Neptune

    60%

    Steampunk infographics


    Follow the link in the graph to modify its data and then paste the new one here. For more info, click here

    Neptune

    It’s far away from us

    16,7%

    Saturn is the ringed planet

    Saturn

    27,8%

    Jupiter

    It was named after a god

    55,6%

    Steampunk infographics


    Despite being red, Mars is a cold place

    Mars

    10%

    Venus is the second planet from the Sun

    Venus

    50%

    Saturn is a gas giant and has several rings

    Saturn

    10%

    It’s the biggest planet in the Solar System

    Jupiter

    30%

    Steampunk infographics


    December, 2xxx

    Mon

    Tue

    Wed

    Thu

    Fri

    Sat

    Sun

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    17

    18

    19

    20

    21

    22

    23

    24

    25

    26

    27

    28

    29

    30

    31

    Mars is actually a cold place

    12/09/2XXX

    Jupiter is a gas giant

    12/25/2XXX

    Steampunk infographics


    It's an ice giant

    Neptune

    01

    It has rings

    Saturn

    02

    It's a gas giant

    Jupiter

    03

    It's made of basalt

    Mars

    04

    Earth has life

    Earth

    05

    It's a dwarf planet

    Pluto

    06

    It’s a bright star

    Sun

    07

    It's terribly hot

    Venus

    08

    Steampunk infographics


    Saturn was named after a Roman god

    Saturn

    01

    Jupiter doesn’t have a solid surface

    Jupiter

    03

    Neptune is very far away from the Sun

    Neptune

    02

    Earth is the third planet from the Sun

    Earth

    04

    Venus is the second planet from the Sun

    Venus

    05

    Mercury is the closest planet to the Sun

    Mercury

    06

    Steampunk infographics


    It's the fourth-largest planet by diameter in the Solar System

    Neptune

    Mercury is the smallest planet in the Solar System

    Mercury

    It's a dwarf planet

    Pluto

    It has several rings

    Saturn

    Mars is a cold planet

    Mars

    It's in the asteroid belt

    Ceres

    It’s a gas giant

    Jupiter

    We all live on Earth

    Earth

    Steampunk infographics


    Jupiter

    It’s the biggest planet of them all

    100

    20

    Saturn

    It's a gas giant and has several rings

    40

    60

    Mars

    Mars is actually a very cold place

    90

    50

    Follow the link in the graph to modify its data and then paste the new one here. For more info, click here

    Steampunk infographics


    Venus

    01

    Mercury is small

    02

    Venus is terribly hot

    03

    Earth has life

    04

    Mars is a red planet

    05

    The Sun is a star

    Jupiter

    It's the biggest planet of them all

    Saturn

    Saturn was named after a Roman god

    The Moon

    It’s our planet’s natural satellite

    Neptune

    It's very far away from the Sun

    Steampunk infographics


    Saturn has several rings

    Saturn

    01

    Neptune is far away from us

    Neptune

    02

    It's considered a dwarf planet

    Pluto

    03

    Mercury is quite a small planet

    Mercury

    06

    Earth is the planet with life

    Earth

    05

    Mars is full of iron oxide dust

    Mars

    04

    Steampunk infographics


    Earth is the third planet from the Sun

    40%

    Pluto is now considered a dwarf planet

    30%

    Jupiter

    Venus

    Despite being red, Mars is very cold

    20%

    Neptune is very far away from us

    10%

    Steampunk infographics


    Jupiter is the biggest planet in the Solar System

    Jupiter

    01

    Mercury is the closest planet to the Sun and the smallest in the Solar System. It was named after a Roman god

    Despite being red, Mars is actually a cold place

    Mars

    02

    Earth is the only planet known to harbor life

    Earth

    03

    Steampunk infographics


    01

    Mercury

    Mercury is the closest planet to the Sun

    02

    Venus

    Venus is the second planet from the Sun

    03

    Earth

    Earth is the third planet from the Sun

    04

    Mars

    Despite being red, Mars is very cold

    05

    Jupiter

    Jupiter doesn’t have a solid surface

    06

    Saturn

    Saturn was named after a Roman god

    Steampunk infographics


    Venus has a beautiful name and is the second planet from the Sun

    Venus

    Mercury is the closest planet to the Sun and the smallest of them all

    Mercury

    Despite being red, It's actually a cold place. It’s full of iron oxide dust

    Mars

    Steampunk infographics


    Mars

    Mars was named after a god

    01

    Venus

    Venus has a beautiful name

    03

    Earth

    It's the third planet from the Sun

    02

    Steampunk infographics


    It's a cold place

    Mars

    Venus is very hot

    Venus

    Earth has life

    Earth

    It’s a gas giant

    Jupiter

    Steampunk infographics


    It was named after a god

    Jupiter

    03

    It’s far away from us

    Neptune

    04

    It's the planet with life

    Earth

    05

    Venus is terribly hot

    Venus

    02

    It was named after a god

    Mars

    01

    Steampunk infographics


    Venus has a beautiful name and is the second planet from the Sun

    Venus

    Saturn

    Mars

    Mercury is the closest planet to the Sun and the smallest of them all

    Mercury

    Neptune

    Jupiter

    Steampunk infographics


    Earth is the only planet known to harbor life

    Earth

    2XXX

    It's extremely hot, even more than Mercury

    Venus

    2XXX

    Despite being red, Mars is actually a cold place

    Mars

    2XXX

    It’s the farthest planet from the Sun

    Neptune

    2XXX

    Steampunk infographics


    Venus is terribly hot, even hotter than Mercury, and its atmosphere is extremely poisonous
    • Saturn has rings
    • Mercury is very small
    • Pluto is a dwarf planet
    • Neptune is far away from us
    • Jupiter is a gas giant

    Venus

    It's the closest planet to the Sun and the smallest one in the entire Solar System

    Mercury

    01

    Earth is the third planet from the Sun and the only one that harbors life

    Earth

    02

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