Hi, I configured and installed the Cisco Anconnect 4.6, but allways when we initiate the VPN I receive a Windows with mesage Untrusted Server Certificate.
How can I install this certificate on Windows Machine for don´t show this mesage again?
Solved! Go to Solution.
You're receiving this message because the certificate on asa is a self signed certificate not trusted by any public ca you've in your machine.
The only way to get rid of this message is to install a public certificate for your ssl vpn. You can buy any public certificate using your domain name or you can use letsencrypt to get free public certificates for your domain name. You'll need to see on their website or certbot website. They will show you how to configure a Linux machine to automatically download and renew this public cert valid for 90 days. You'll need to a script to change it on asa if you want it automatic otherwise you'll need to renew it manually every 90 days.