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Fault Injection
Time Travel Experiment

Time Travel Experiment

Supported platforms:

Linux
,

The Time Travel experiment modifies the system time of the target's operating system. This experiment also optionally blocks all traffic over the standard NTP port, which is equivalent to running a Blackhole Gremlin against outgoing port <span class="code-class-custom">123</span>.

Linux

The Time Travel experiment issues a <span class="code-class-custom">settimeofday</span> syscall. See settimeofday(2)

This experiment requires the <span class="code-class-custom">SYS_TIME</span> capability, which is enabled by default at installation time. See capabilities(7)

Options

ParameterFlagRequiredDefaultVersionDescription
NTP-nFalseFalse1.5.0Disable NTP from correcting systemtime.
Offset-o intFalse864001.5.0The offset to the current time (seconds).
Length-l intFalse601.5.0The length of the experiment (seconds).

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Privilege Description
FAULT_TIME_TRAVELAllows performing time travel experiments

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