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I dont think we need an introduction to the most widely used Remote console utility, PUTTY. Putty support SSH, Telnet, RLogin & RAW connections.

If you telnet or SSH to your Cisco IOS routers or switches or Juniper Firewalls and ofcourse anything that support CLI and SSH or Telnet then one of the things you would prefer to do is to take a backup of the config (Running or Startup) or even capture session text including logs tech information etc. We discussed here about using Hypereterminal to capture text and hence backup and restore config on Cisco IOS Routers and Switches.

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Using Telnet for remote administration of Cisco Routers and Switches (infact for any other device like a unix,linux or a solaris seerver) is not very secure as the data including the passwords are sent in clear text. It will only be a matter of time for a malicous attacker who can sniff the packets to gain access to the passwords and infact the whole network.

It is recommended that Secure Shell (SSH) is used for remote administration of Cisco Routers and Switches. 

NOTE: Cisco IOS on the Catalyst switches are by default supplied with the SSH feature bultin. However, the basic Cisco IOS for the routers do not have the SSH facility built-in. To use the SSH feature on Cisco Routers, you need to have the Cisco IOS version with the IPSec(DES or 3DES) encryption software.

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Kiwi CatTools automates configuration backups and management on routers, switches and firewalls. It provides e-mail notification and compare reports highlighting config changes. Supports Telnet, SSH, TFTP and SNMP.

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