เครือข่าย เว็บ และอีเมล Wireless networking — Connect to wireless networks, including hidden networks and networks created from phone tethering. Contacts — Access your contacts. Email & email software — Set your default app and stay safe with email. Keeping safe on the internet — Understand firewalls, viruses, and other internet security topics. Network problems — Troubleshoot connectivity issues with wireless and wired networks. Networking terms & tips — Learn about IP address, internet proxies, and how to stay safe on the internet. Sharing — Share your desktop, files, or media. Web browsers — Change your default web browser. Wired networking — Use a wired internet connection and set a static IP address. ข้อมูลเพิ่มเติม วิธีใช้ GNOME — A guide for GNOME desktop users.