ITC/3AV WIKI

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====== SSH MANAGEMENT ======

Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. Typical applications include remote command-line, login, and remote command execution, but any network service can be secured with SSH.

Next, a small scenario is carried out where a serial cable is connected from the PC to the Ruijie Switch and assign an IP address for the management of the Switch by Telnet.

===== 1. Network Topology =====

{{:ruijie:switch:system_management:ruijie_telnet_1.png?400|}}

===== 2. Configuration Steps =====

**- Enable SSH service**

//Ruijie#configure terminal   // 

//Ruijie(config)#enable service ssh-server// 


**- Generate key**

//Ruijie(config)#crypto key generate dsa //       

//Choose the size of the key modulus in the range of 360 to 2048 for your Signature Keys. Choosing a key modulus greater than 512 may take a few minute//

//How many bits in the modulus [512]://     //**Press enter**//

//% Generating 512 bit DSA keys ...[ok]//


**- Configure IP address**

//Ruijie(config)#interface gigabitEthernet 0/0//       

//Ruijie(config-if-GigabitEthernet 0/0)#ip address 192.168.1.1 255.255.255.0//      

//Ruijie(config-if-GigabitEthernet 0/0)#exit//


**- Password login**

//Ruijie(config)#line vty 0 4   //                                        

//Ruijie(config-line)#login//     

//Ruijie(config-line)#password ruijie //        

//Ruijie(config-line)#exit//      

//Ruijie(config)#enable password  ruijie//        

//Ruijie(config)#end//         

//Ruijie#write   //


**- Username & password login**

//Ruijie(config)#line vty 0 4//            

//Ruijie(config-line)#login local//           

//Ruijie(config-line)#exit  // 

//Ruijie(config)#username admin password ruijie//       

//Ruijie(config)#enable password ruijie   //  

//Ruijie(config)#end    //     

//Ruijie#write  // 


===== 3. Verification =====


**- Check SSH service**

{{:ruijie:switch:system_management:ruijie_ssh_1.png?400|}}


**- Check SSH services**

{{:ruijie:switch:system_management:ruijie_ssh_2.jpg?600|}}


**- Show users**

{{:ruijie:switch:system_management:ruijie_ssh_3.jpg?600|}}