Installation and Setup Guide

Table Of Contents
n
Is the certificate signed by an unknown or untrusted certificate authority (CA)? Self-signed certificates
are one type of untrusted CA.
To pass this check, the certificate's chain of trust must be rooted in the device's local certificate store.
Note For information about distributing a self-signed root certificate that users can install on their Linux
client systems, see the Ubuntu documentation.
Horizon Client uses the PEM-formatted certificates stored in the /etc/ssl/certs directory on the client
system. For information about importing a root certificate stored in this location, see "Importing a
Certificate into the System-Wide Certificate Authority Database" in the document at
https://help.ubuntu.com/community/OpenSSL.
In addition to presenting a server certificate, the server also sends a certificate thumbprint to
Horizon Client. The thumbprint is a hash of the certificate public key and is used as an abbreviation of the
public key. If the server does not send a thumbprint, you see a warning that the connection is untrusted.
If your Horizon administrator has allowed it, you can set the certificate checking mode. To set the
certificate checking mode, start Horizon Client and select File > Preferences from the menu bar. You
have three choices:
n
Never connect to untrusted servers. If any of the certificate checks fails, the client cannot connect
to the server. An error message lists the checks that failed.
n
Warn before connecting to untrusted servers. If a certificate check fails because the server uses a
self-signed certificate, you can click Continue to ignore the warning. For self-signed certificates, the
certificate name is not required to match the server name you entered in Horizon Client.
n
Do not verify server identity certificates. This setting means that no certificate checking occurs.
Switch Remote Desktops or Published Applications
If you are connected to a remote desktop, you can switch to another desktop. You can also connect to
published applications while you are connected to a remote desktop.
VMware Horizon Client for Linux Installation and Setup Guide
VMware, Inc. 64