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The way to avoid inputting this passphrase for every device is using the PuTTY authentication agent or pageant. This passphrase is what is used to buy some time if someone accesses your SSH keys.
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Which is where you enter the passphrase you configured on the keypair. It will also say: Passphrase for key "rsa-key-20150225": Now when you connect it will say the following in the PuTTY window: Authenticating with public key Its under \Connection\SSH\Auth in the PuTTY configuration categories.
#CISCO ASA KEY GENERATOR PASSWORD#
So the default setup for a user on the ASA is as follows: username johndoe password this password is no mean feat to remember although everyone is using password managers anyway, but still, inconvenient to have to keep entering it.
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#CISCO ASA KEY GENERATOR PC#
The private key is private in that you should guard it with your life! (Not quite but don’t transfer it about, leave it on your PC only, this is why I mentioned to have a key per device) ASA Configuration The public key is public in that you can give it to any old weirdo and in itself is useless. 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.
#CISCO ASA KEY GENERATOR WINDOWS#
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. SSH is a truly great and secure protocol.