OpenNTPD Review
OpenNTPD is a free, security-focused NTP daemon for Unix-like systems developed by the OpenBSD project.
Verdict
OpenNTPD is a minimal, security-hardened alternative to ntpd, originating from OpenBSD and widely ported to other Unix systems. Its main strength is simplicity and a small attack surface, making it a solid choice for servers where accurate but low-complexity timekeeping is needed. It lacks advanced features like hardware clock support found in chrony or full NTPv4 implementations, so demanding environments may prefer alternatives.
What it does
the main OpenNTPD page
Best for
OpenNTPD is best for system administrators and users who require a simple and secure NTP implementation for their Unix-like systems.
At a glance
Pros & cons
- Security-focused, minimal attack surface
- Simple configuration
- Open source and free
- Lacks advanced NTP features
- No hardware clock support
- Limited to Unix-like systems
Frequently asked
- Is OpenNTPD free to use?
- Yes. OpenNTPD has a free plan — Open source, free
- Does OpenNTPD have memory?
- No persistent memory — sessions don't carry over by default.
- Can OpenNTPD do voice or images?
- Voice: no. Image generation: no.
- What are the best alternatives to OpenNTPD?
- Browse the AI Tools Directory for related tools.
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