We need to access the Internet through a proxy server. What is to do?

When accessing deskMate desktops with the deskMate WebClient (means via the browser) there is usually nothing to consider. The necessary proxy server entry was already made when setting up the browser.
If you still can't access the deskMate desktops, your proxy server probably doesn't support websockets. You can test this with the following link:
https://www.websocket.org/echo.html

If the deskMate native client is used, the tab "settings" and then "Network" must be opened before the first access. Here the proxy server entries must be made. You get the data from the system administrator who is responsible for the company network.

If this does not lead to success, your company network is very restrictive. In this case, please pass on the information below to your system administrator. He can then unlock the accesses in the firewall.

The native software client will not work if a proxy is used which breaks the certificate chain for content/ssl inspection.
The native software client and the deskMate connection proxies communicate over a proprietary realtime protocol over TCP/443 which differs from HTTPS and must not be intercepted.

The web client uses a secure WebSocket connection (wss://) over TCP/443 to the deskMate connection proxies.
A company proxy must allow WebSockets and the HTTP protocol upgrade mechanism for this connection to work.

Following FQDNs/IPs could be whitelisted (TCP/443):
    connproxy-1.tocario.com (185.14.48.150)
    connproxy-2.tocario.com (185.14.48.151)
    …
    connproxy-9.tocario.com (185.14.48.158)