IOS

SSH (Secure Shell)

as a network administrator our job is to protect our network
well there is too many ways and telnet is  not one of them
using hacking software can show the Password in a clear text so now you fired

Secure Shell (SSH) is a cryptography network protocol provides a secure channel over an unsecured network
i will guide you in the way to configure it in Switch

First Configure the Hostname
1
Then Configure the Domain Name2.png
Then Generate Key and Choose your Encryption 3
Last thing Enable SSH Version
4
Finally under VTY Configure the Transport Input to Allow SSH only5
Now Configure the User 6
Now there is many tools you can use for SSH
I Choose Putty
My Switch IP : 192.168.188.5
Connection Type: SSH
7
Accept the Security Alert
8
Login with my User that i created earlier
username:ccieroot
password:ccieroot9
That it  ;D

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DHCP, IOS

Configure DHCP on IOS

this post will walk you through configuring a Cisco Router to serve as a DHCP server for client

I Define two pool one for Data and name it CCIEROOTDATA and second pool for IP Phone Name CCIEROOTVOIP

we define the dhcp pool by the command:
IP DHCP Pool “name”
then define the Network Subnet by Network command
third  Default router which is their Gateway and last is the DNS
for voice we add extra command “option 150” which is the IP Phone TFTP
in our case its also the Publisher IP Address 192.168.200.10
1
Then Configure Different VLAN for DATA and VOIP on our CORE Switch
2
Third we configure two Virtual interface for Each VLAN
4
Last Configure the Access Port that connect to the User PC & IP Phone
3

Now Confirm the PC took the Correct IP Address from the Correct VLAN 3000

10

and IP Phone DX650 took the correct VLAN 3001
Photo Mar 10, 5 55 51 PM

and the TFTP Configuration Showing Correctly
Photo Mar 10, 6 48 52 PM.jpg
The IP Phone Took the Correct IP Address Configuration
Photo Mar 10, 5 59 47 PM

and this is the steps to configure DHCP in IOS

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