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JUNOS software updates are contained in four packages

  • jkernel–Operating system
  • jroute–Routing Engine software
  • jpfe–Packet Forwarding Engine software

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Juniper Basic Connection and Configuration

When new Juniper device you purchase from your vendor. What should you do first ?

First you have connect with console connection.
To connect console setting are 9600, 8, N, 1 with VT100 Terminal Emulation

When you connect to console cable then power on the device and wait until for the system boot.

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About Junos OS 

  • One operating system
  • One software release
  • One modular software architecture
  • J Series Services Routers (J2300, J4300, and J6300) are deployed at the remote edge of distributed networks.

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Set Juniper Host Name

# set system host-name Juniper1
[Juniper1 is your router name]

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Juniper Hardware Inventory Information
 
You are taking a hardware inventory to track which hardware components are installed in which router, along with serial numbers.
The following command lists all the hardware components installed in the router:
 
source@router> show chassis hardware

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Creating Login Banners at Juniper

 # set system login message “ Welcome \n to \n JUNOS Training\n “
[When you login to your juniper device then the Message will show "Welcome to JUNOS Training]

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Creating Login Banners at Juniper

 # set system login message “ Welcome \n to \n JUNOS Training\n “
[When you login to your juniper device then the Message will show "Welcome to JUNOS Training]

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Juniper save Rescue Configuration and restore rescue configuration

A rescue configuration is designed to restore basic connectivity in the event of configuration problems
Contents of configuration are user-defined and, by default, no rescue configuration exists

> request system configuration rescue save

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Juniper Domain Name System (DNS) Server

Configure DNS Name Server at Juniper Router
root@juniper1# set system name-server 172.26.27.2
root@juniper1# set system name-server 172.26.27.3

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Juniper Shutdown and Reboot Command

This is from operational mode.

> request system power-off
[It will Shutdown the system]

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