** Things on this page arefragmentary and immature notes/thoughts of the author. It is not meant to readersbut rather for convenient reference of the author and future improvement. **

1. You might have difficulties to visit some web pages when you are using VPN. This is probably because the location set by VPN bans the web pages you visit. You can simple choose another location to avoid this issue.

2. The VPN (connections) information are saved in the directory /etc/NetworkManager/system-connections/.