Harmful

The following items are considered harmful by various VTLUUG members and should be avoided:

• TrendNET managed switches (e.g. TEG-240WS). These lack basic management features as well as SSH and telnet capabilities and are incompatible with modern browsers.
• Comcast
• NTC
• DyKnow
• Respondus LockDown Browser
• Tablet requirement
• Duo 2FA. VTLUUG, while mostly strong supporters of 2-factor authentication, agrees Duo is a poor implementation
• HTML email
• Web-CAT
• Hostnames that violate RFC 1178
• USB serial adapters with a Prolific chipset
• Mastering Physics
• Internet of Things