What is SSTP?
The Secure Socket Tunneling Protocol (SSTP) is a common protocol used in Virtual Private Network (VPN) connections.
The protocol was developed by Microsoft, so it’s more common in a Windows environment than Linux.
Microsoft developed the technology to replace the more insecure PPTP or L2TP/IPSec options available in Windows.
Native VPN connections in Windows mostly use SSTP, but the VPN provider and the ease of setup for users and administrators dictate the protocol.
SSTP Category
Asia
No available server
Bangladesh 
Bahrain 
China 
India 
Indonesia 
Japan 
Korea 
Kuwait 
Oman 
Philippines 
Singapore 
Thailand Africa
No available server
Africa 
Algeria 
Botswana 
Egypt 
Gabon 
Ghana 
Liberia 
Morocco 
Nigeria 
Senegal 
Somalia 
Zambia Europe
No available server
Belarus 
Finland 
France 
Germany 
Iceland 
Italy 
Luxembourg 
Netherlands 
Russia 
Spain 
Switzerland 
UK America
No available server
Argentina 
Bolivia 
Brazil 
Canada 
Chile 
Colombia 
Ecuador 
Guyana 
Paraguay 
Peru 
United States 
Venezuela Australia/Oceania
No available server
Australia 
Fiji 
Kiribati 
Nauru 
New Zealand 
Palau 
Papua NG 
Samoa 
Solomon Isl 
Tonga 
Tuvalu 
Vanuatu