CentOS

How do I install cisco anyconnect secure mobility client? I would like to have that option in the list of the vpn connections.

You could try using the opensource 'vpnc' package from EPEL instead. There's also NetworkManager-vpnc.x86_64 and NetworkManager-vpnc-gnome.x86_64

Complete these steps in order to download the driver bundle:

• In a web browser, navigate to http://www.cisco.com.
  Under Support, navigate to Downloads > All Downloads.
  Click Servers - Unified Computing.
  Choose UCS M-Series Modular Server Software
  Click Unified Computing System (UCS) Drivers.
  Select the bundle you want to download, and click Download Now.

Here is the next steps: Installing Cisco with CentOS and if you are looking how VPN works, here is the VPN Encryption guide.

I have read the CentOS is not officially suported, there are some requirements listed to check on Linux systems:

https://onplanners.com/planners/best-pl ... al-setting

Does the user in both cases have superuser privileges?

Do the respective installation directories have the same ownership, read, write and execute privileges?

Or, as said above, you can ignore the proprietary closed source cisco software and use vpnc which just works and can also be set up to be used by non-root users.