Category / Cisco

  • If you’re following best security practices then you should be using SSH with an RSA modulus length of at least 2048 and have telnet disabled on your devices.  There isn’t a command to view the RSA modulus length in Cisco IOS other than running sh crypto key mypubkey rsa and then calculating the modulus length […]

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  • When you try to run the Cisco VPN Client on a Mac you get “Error 51: Unable to communicate with the VPN subsystem”.  I ran into this issue while trying to get the Mac version of Cisco VPN Client to run on the only Mac user’s system I support.  After a little bit of searching […]

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