You can easily capture or copy/Save the configuration file from any network devices like Cisco Routers, Switches etc.. with putty and also you can capture complete PUTTY session, it will save all configuration changes and output of all issued commands throughout the session.
PUTTY is a small free open source tool which is used as client for SSH, Telnet, rlogin and raw TCP computing protocols. Most of the computer professionals might use PUTTY to connect remote machine and to work in terminal.
Steps to take a Configuration Backup with Putty:
Follow the below steps to capture the Router backup configuration or complete session log with PUTTY….
1. Launch Putty and connect to your Cisco Router/Switch
2. Enter the Privilege Exec mode by entering enable password.
3. Enter the terminal length 0 command in order to force the Router to return the entire response at once, rather than one screen at a time.
Router# terminal length 0
This allows you to capture the configuration without extraneous −−more−− prompts generated when the router responds one screen at a time.
4. Right-click on the menu bar of the Putty screen and select “change Settings”
5. Go to Session and click on Logging, select “Log all session output”
6. Click on Browse and choose the location and name of the file (I like to place my config file on my desktop – C:\Documents and Settings\Administrator\Desktop\config.txt)
7. Click apply
8. Now enter the show run command, Loggout and see the output in config.txt on your desktop (or the location you chose).
Router# show run
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