5-amaliy mashg‘ulot



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5 amaliy ishi Cisco Packet Tracer dasturida Telnet va SSH-1

Код

Комментарии к коду

Router> en




Router# enable




Router# conf t




Enter configuration commands, one per line. End
with CNTL/Z.




Router(config)# interface gigabitethernet 0/0

FastEthernet 0/0 interfeys konfiguratsiya rejimiga kirish uchun buyruq

Router(config-if)# ip address 192.168.0.1
255.255.255.0

IP manzilini sozlash

Router(config-if)# no shutdown

Barcha interfeyslar sukut bo'yicha o'chirilgan. Interfeysni yoqing

Router(config-if)#




%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up


%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up




Router(config-if)# exit







Telnet yoki ssh ulanishi virtual
terminal (vt) deb nomlanadi va




quyidagicha sozlanadi

Router(config)# line vty 0 4

0 4 - bu 5 foydalanuvchi virtual terminallari = telnet seanslari

Router(config-line)# login local




Router(config-line)# password telnet123




Router(config-line)# privilege level 15

bu foydalanuvchi huquqlari darajasi.
Hammasi bo'lib 16 daraja mavjud: 0-
15. imtiyoz darajasi 0 - bu barcha rejimlarda ishlaydigan o'chirish, yoqish, chiqish, yordam va chiqish buyruqlari 1-imtiyoz darajasi - Bular foydalanuvchi rejimi buyruqlari, ya'ni cis-ga etib borganingizdan va Router> buyruqni ko'rishingiz bilan siz 1- darajali imtiyoz darajasi 15 - bu imtiyozli rejim buyruqlari, Unix-dagi kabi

Router(config-line)# exit




Router(config)# username cisco privilege 15 password cisco123

foydalanuvchiga huquqlar darajasini tayinlang, foydalanuvchi yaratiladi

Router(config)# end




Router#




Router# wr




Building configuration...




[OK]




Router#








  1. После настройки маршрутизатора Cisco создали имя пользователя и пароль для Telnet-соединения. Перед подключение к Роутер настроим конфигурацию в ПК в рабочей области следующим образом:








  1. IP sozlamasini yoping va CMD buyruq satriga o'ting ( Command promt).

Buyruq satrida telnet 192.168.0.1 kiriting va Enter bosing. Keyin foydalanuvchi nomi va parol kiritiladi. Bunday holda, ism: cisco , parol: cisco123 ( parolni kiritish ko'rinmas ).



Cisco routeriga ulanganingizdan so'ng, siz LAN va WAN orqali qurilmangizni boshqarishingiz mumkin . Qurilmaga ulanishlarni ko'rish uchun show line. buyrug'ini bajaring .
Endi SSH-ni kommutatorda sozlaylik - buning uchun siz hostname, domen nomini ko'rsatishingiz va shifrlash kalitini yaratishingiz kerak.

Router-ni ikki marta bosing va buyruq satriga o'ting. Dastlabki sozlamalarni o'tkazib yuborish uchun Enter tugmasini bosing .


Чтобы подключить SSH на маршрутизатор, выполните следующие команды по порядку.



Router> enable




Router# conf t




Enter configuration commands, one per line.
End with CNTL/Z.




Router(config)# hostname ADMIN

Hostname belgilash

ADMIN(config)# interface gigabitethernet
0/0




ADMIN(config-if)# ip address 192.168.1.1
255.255.255.0




ADMIN(config-if)# no shutdown




ADMIN(config-if)#




%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up


%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up exit




ADMIN(config)# ip domain name
ciscoadmin

Biz domen nomini ko'rsatamiz

ADMIN(config)# crypto key generate rsa

Shifrlash kaliti yaratilmoqda

The name for the keys will be: ADMIN.ciscoadmin


General Purpose Keys. Choosing a key modulus greater than 512 may take a few minutes.




How many bits in the modulus [512]: 1024

Kalit uzunligini tanlang - 1024

% Generating 1024 bit RSA keys, keys will be
non-exportable...[OK]




ADMIN(config)#ip ssh version 2

SSH versiyasini belgilaydi

*мар 1 0:6:0.73: %SSH-5-ENABLED: SSH
1.99 has been enabled




ADMIN(config)#ip ssh time-out 10

Kutish vaqti

ADMIN(config)#ip ssh authentication-retries
3

Avtorizatsiya urinishlari soni

ADMIN(config)#line vty 0 4




ADMIN(config-line)#login local




ADMIN(config-line)#privilege level 15




ADMIN(config-line)#transport input ssh




ADMIN(config-line)#exit




ADMIN(config)#username cisco privilege 15 password cisco123




ADMIN(config)#end




ADMIN#




%SYS-5-CONFIG_I: Configured from
console by console




ADMIN#wr




Building configuration...




[OK]




ADMIN#




Endi IP-configuration bo'limida shaxsiy kompyuter parametrlarini sozlaylik :


:



Ulanish uchun, kompyuterga buyruq satriga o`tib, quyidagilarni kiriting va Enter tugmasini bosing :


ssh - l cisco 192.168.1.1
- l kirish (login) qiymati
сisco – marshrutizatorga ulangan foydalanuvchi nomi . 192.168.1.1 - marshrutizatorning ip manzili.
Yaratilgan parolni kiriting va ulanish o'rnatiladi. Show ssh buyrug`i bajarilgandan so'ng , buyruq satrida SSH protokoli versiyasini tekshirish mumkin.

Vazifa. TelNet va SSH protokollarini sozlang. O`zingizning IP - manzilingizni ko'rsating va foydalanuvchini o`zining nomi bilan ulang (username: ismingiz, password: ismi va guruh raqami).

Nazorat savollari:


    1. TelNet protokoli tavsifini bering .

    2. SSH protokolini tavsiflab bering .

    3. TelNet va SSH protokollari o'rtasidagi farqlarni aytib bering .

    4. Telnet va SSH protokollarining asosiy vazifalari.

    5. SSH protokolining nechta versiyasi mavjud?

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