SSH configuration

1. Specify the Host name.

   Router(config)#hostname <host name>
   

2. Define a default domain name.
   

   Router(config)#ip domain-name <Domain Name>
   

3. Generate RSA key pairs.
   

   Router(config)#crypto key generate rsa
   

4. Configure SSH-RSA keys for user and server authentication.
   

   Router(config)#ip ssh pubkey-chain
   

5. Configure the SSH username.
   

   Router(conf-ssh-pubkey)#username <user name>
   

6. Specify the RSA public key of the remote peer.
   

   Router(conf-ssh-pubkey-user)#key-string
   

7. Specify the SSH key type and version. (optional)
   

   Router(conf-ssh-pubkey-data)#key-hash ssh-rsa <key ID>
   

8. Exit the current mode and return to privileged EXEC mode.
   

   Router(conf-ssh-pubkey-data)#end
   

some troubleshooting skill related to CPU usage

process cpu threshold type total rising 80 interval 5

 event syslog pattern "%SYS-1-CPURISINGTHRESHOLD"

 action 1 cli command "enable"

 action 1 cli command "<enable password>"

 action 3 cli command "show clock | append flash:risecpu_info"

 action 4 cli command "show proc cpu sorted | append flash:risecpu_info"

 action 5 cli command "show proc cpu history | append flash:risecpu_info"

 action 6 cli command "show interface | append flash:risecpu_info"

 action 7 cli command "show int switching | append flash:risecpu_info"

 action 8 cli command "show ip traffic | append flash:risecpu_info"

 action 9 cli command "show ip cef switching stat feature | append flash:risecpu_info"

 action 10 cli command "show debug | append flash:risecpu_info"

  action 11 cli command "show align | append flash:risecpu_info"