You can also save the public key which is what you will use on the ASA or any other SSH server hosting device. You just need to save the private key which contains both the public and private keys within it in a sensible location. This is an extra layer of security so if your private keys were compromised it would buy you some invaluable time to replace them. use one key for each device you use to access routers, switches, servers etc.) There is also the option to configure a passphrase. (I recommend a key pair per client device.
Now there are some options to create a comment, which you can use to track which PC the key is for. Now the default is 1024 bits in PuTTY, this can be safely doubled for increased security and all systems these days would cope without issue with a key this size. Generate the key as an SSH-2 RSA key pair. Firstly you need to generate a PuTTY key pair.
To configure PuTTY to login with a username and password is easy but to use key pairs is slightly more involved. I suggest on windows going with the installer for everything. Now there are a great many SSH programs available but the one everyone knows and it is of course completely free, is PuTTY. Certificate Creationįirst step is to disable SSH v1 on your ASA (config)#ssh version 2 Now when we talk about SSH, I’m talking about version 2. Version 1 has holes. What does need explanation however is the use of SSH key pairs. That works, it needs no real explanation. SSH on the ASA is a fairly simple affair configured the default way, with users, passwords and restricting ssh internet access to specific IP addresses. Right, but are you using all of its amazing abilities? Probably not is my guess, cause I wasn’t for quite some time. We all know we should be using it instead of telnet right. It does not store any personal data.SSH is a truly great and secure protocol. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. In the case of connecting the USB cable, the Type-A side should be connected to the computer side and the type-B side should be connected to the outer side. If the USB cable is not plugged into the USB port, the RJ-45 port becomes active. When someone connects the USB cable to the USB console port, the RJ-45 console port becomes inactive.
The driver for this type of cable is available from These routers are using two console ports, only one console port can be active at a time. It should use USB Type-A to USB Type-B cable, as well as an operating system device driver. The Cisco Integrated Service Router G2 supports a USB connection.
For this purpose, a USB-to-RS-232 compatible serial port adapter is required when using the USB port. If the host is using a computer without a serial port then the USB port can be used to establish a console access connection. The majority of computers and notebooks are now manufactured without built-in serial ports. The cable is used to connect the serial port of the host and the console port on the device. The figure below shows the terminal window of putty.
Most People use Putty software for console access. The Tera Term, Putty, and Hyper Terminal are usually used to access the router and switches on a console port. The terminal software is also required for accessing the router and switches. It has to type RJ-45 to DB9 Console access cable and RJ-45 to RJ-45 Console access cable. A Rollover cable is used to connect the Serial/COM port of the computer to the router or switch console port. Normally router console port is an RJ45 port. The console port is also used for initial configuration. It is used to connect a computer directly to a router or switch and manage the router or switch. All Cisco router and switches have a console port also known as the management interface. Console Access is an important topic for networking students, so in this lesson, I am going to explain console access to Cisco devices.