October 2019 - Cloud Network

Cloud Network

Networking | Support | Tricks | Troubleshoot | Tips

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    Thursday, October 31, 2019

    How to Install and Create Ubuntu 19.10 LTS Using Hyper-V on Windows 10

    October 31, 2019
    How to Install and Create Ubuntu 19.10 LTS Using Hyper-V on Windows 10

    Specification Required :-

    1. Windows 10 Pro or Enterprise license  - 64bit
    2. BIOS should support virtualization
    3. Version 1803/v1809 or v1903

    To verify Windows OS and Version type
    Press: win + r (keyboard)
    Type : winver

    To Verify BIOS Hardware type
    Type : systeminfo (cmd or command prompt)

    Open Hyper-V by typing
    copy : optionalfeatures (start Menu or win + r)





    Now Select Hyper-V see below screenshot


    • After the Hyper-V features had installed, I rebooted my system.
    • open Hyper-V quick create by typing on Start menu
    • Select Windows 10 or Ubuntu then click on create virutal machine
    • After Successfully created VM then selected "Edit settings to see how the VM configured
    • Then Click on cancel and connect and start it
    • Assign Login details like username and password
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    Download MS Hyper-V Server 2019

    October 31, 2019
    Download MS Hyper-V Server 2019
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    How to Switching Hyper-V Virtualization Off and On

    October 31, 2019
    How to Switching Hyper-V Virtualization Off and On

    How to Switching Hyper-V Virtualization Off and On

    Type command in your Start Menu search bar and select Run as Administrator. Then input the following command:

    bcdedit /set hypervisorlaunchtype off

    Then restart your system.

    Hyper-V virtualization will not start after the reboot, and you should find your performance returns to normal. If you want to turn Hyper-V virtualization on again, use the following command:

    bcdedit /set hypervisorlaunchtype on

    Restart your system again.
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    Tuesday, October 29, 2019

    How to Configure/Backup/Restore Cisco IOS Image in Router and Features

    October 29, 2019
    How to Configure/Backup/Restore Cisco IOS Image in Router and Features

    How to Configure/Backup/Restore Cisco IOS Image in Router Using RAM, NVRAM and TFTP

     

    Router Configuration Files are located in one of three places

    RAM, (Configuration File stored here)
    NVRAM and
    External Server (FTP,HTTP,TFTP, SCP)

    Saving Configuration Files from RAM to NVRAM

    Step1 :- copy running-config|startup-config flash:file_name

    Backup your configuration to an external server

    Step2 :- copy running-config URL_location
    examplge :- copy running-config tftp://192.168.1.10/mybackupfile.txt

    Step3 :- copy running-config tftp
    If the filename already exists on the server, the server overwrites the old file. After entering this information, you should see bang symbols (!) indicating the successful transfer of UDP segments to the TFTP server. If you see periods (.), this indicates an unsuccessful transfer. Plus, upon a successful transfer, you should also see how many bytes were copied to the server.

    Restoring Configuration Files

    Step4 :- copy URL_location running-config|startup-config
    example :- copy tftp startup-config (TFTP server to NVRAM)
    Step4 :- copy tftp running-config  (TFTP server to Active Memory)

    Restoring Configuration From NVRAM to RAM with this command

    Step5 :- copy startup-config running-config (From NVRAM)
    Step5 :- copy flash:file_name running-config|startup-config (From flash)

    The copy command backs up and restores configuration files: copy running-config  startup-config and copy running-config tftp back up the configuration file.
    The copy startup-config running-config and copy tftp running-config or copy tftp startup-config commands restore the configuration file.
    The erase startup-config command deletes the configuration file.

    For delete your configuration file

    Step6 :- erase startup-config|nvram
    or write erase

    To verify deleted file

    Step7 :- show startup-config

    Configuration Nomenclature (IFS) IOS File System

    Step8 :- more system:running-config (To view the active configuration)
    Step8 :- delete flash:file_name (delete a file in flash)

    Overview of IOS Process When Dealing with Configuration Files

    To View IOS Image Files

    Step9 :- show flash
    or dir (additional command)
    Step10 :- show version (how much flash you have installed on your IOS device)

    Example :- c1841-advipservicesk9-mz.124-6.T7.bin
    c1841 refers to the name of the platform on which the image will run.
    advipservicesk9 refers to the features included in this IOS version,
    mz or z means that the image is compressed and must be uncompressed before loading/running.
    124-6.T7 indicates the software version number of the IOS.
    and .bin at the end indicates that this is a binary image.

    Backing Up an IOS Image

    Step11 :- copy flash tftp (tftp is URL)

    Loading an IOS Image

    Step12 :- copy tftp flash




    Reboot your Router in two ways
    turn it off and back on, or use the Privilege EXEC reload command.
    The first method is a hard reboot, and the second one is a soft reboot.

    Caution : If you place an incorrect image on your router—for instance, a 3600 series image on a 2800 series router—the router will not boot up. You’ll need to break into ROMMON mode and either do a TFTP boot or boot from the Mini-IOS in ROM  (if this exists).

    Example : copy tftp://192.168.101.66/iosimage.bin flash

    Remote Access to Your IOS Device

    SSH Configuration
    Step13 :- username itcloudnet secret password@123
    Step14 :- hostname cloudnetwork
    Step15 :- ip domain-name itcloudnet.blogspt.com
    Step16 :- ip ssh version 2
    Step17 :- line vty 0 15
    Step18 :- login local
    Step19 :- transport input ssh
    Step20 :- exit

    Local ARP Table

    Step21 :- show ip arp





    CDP Configuration

    Step22 :- [no] cdp run
    Step23 :- interface type (for enable or disable)
    Step24 :- [no] cdp
    Step25 :- show cdp (cdp status)
    Step26 :- show cdp interface
    Step27 :- show cdp neighbors
    Step28 :- show cdp neighbors detail
    Step29 :- show cdp traffic

    Using Ping

    Step30 :- ping destination_IP_address_or_host_name
    or ping (additional command)
    example : ping 192.168.1.10

    Using Traceroute

    Step31 :- traceroute destination_IP_address_or_host_name
    or traceroute (extended traceroute command)
    example : traceroute 65.32.13.30

    Using Telnet





    Step32 :- name_of_the_destination | destination_IP_address
    or telnet name_of_the_destination | destination_IP_address
    or connect name_of_the_destination | destination_IP_address
    example : resume connection_# (connection_# should be enter Conn Name of coloum)
    disconnect connection_#  (connection_# should be enter Conn Name of coloum)
    clear line line_# (If you see a * in the first column, this indicates your current session. If you want to terminate someone’s session, use the Privilege EXEC clear line command)

    Debug

    Step33 :- no debug all
    or undebug all
    service timestamps debug datetime msec

    SELF TEST

    The following Self Test questions will help you measure your understanding of the material presented in this chapter. Read all the choices carefully, as there may be more than one correct answer. Choose all correct answers for each question.

    Router Configuration Files
    1. Which router commands perform an overwrite process? (choose two)
    A. copy running-config startup-config
    B. copy startup-config running-config
    C. copy tftp running-config
    D. copy running-config tftp




    2. Enter the router command to delete your configuration file in NVRAM:__________.

    3. You have executed the show startup-config command and see the following message: “%%Non-volatile configuration memory is not present”. Which of the following answers are correct about these two things? (choose two)
    A. This command displays the running configuration in NVRAM.
    B. This command displays the saved configuration in NVRAM.
    C. This command displays the saved configuration in flash.
    D. The message indicates that flash needs to be reformatted.
    E. This message indicates that NVRAM needs to be reformatted.
    F. This message indicates that there is nothing stored in this memory location.

    IOS Image Files
    4. When backing up your IOS image from flash, which of the following will the copy flash tftp command prompt you for? (choose three)
    A. TFTP server IP address
    B. Verification to copy
    C. Source filename
    D. Destination filename

    5. What IOS command will display the version of software your device is running?
    A. show startup-config
    B. show flash
    C. show version
    D. dir and show version




    Remote Access to Your IOS Device
    6. Enter the IOS configuration on the first five VTYs to allow only SSH access and to prompt for both a username and password for line authentication:___________________.

    7. Enter the IOS command that will create RSA public and private keys to encrypt and decrypt traffic for an SSH session:__________.

    Basic Troubleshooting
    8. Which of the following is true of CDP?
    A. The show cdp neighbor command displays what version of software the neighbor is running.
    B. The no cdp run command disables CDP on an interface.
    C. CDP sends out broadcasts every 60 seconds.
    D. CDP can be used to validate layer 2 connectivity.

    9. Which router command would you use to test only layer 3 connectivity?
    A. telnet
    B. show cdp traffic
    C. show interfaces
    D. traceroute

    10. How would you suspend a telnet session?
    A. CTRL-SHIFT-X, 6
    B. CTRL-SHIFT-6, X
    C. CTRL-6, X
    D. CTRL-C
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