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Refresh NTP sources specified by hostname periodically (every 2 weeks by default) to avoid long-running instances using a server which is no longer intended for service, even if it is still responding correctly and would not be replaced as unreachable, and help redistributing load in large pools like pool.ntp.org. Only one source is refreshed at a time to not interrupt clock updates if there are multiple selectable servers. The refresh directive configures the interval. A value of 0 disables the periodic refreshment. Suggested-by: Ask Bjørn Hansen <ask@develooper.com>
This is a collection of simulation tests using the clknetsim simulator (supported on Linux only). https://github.com/mlichvar/clknetsim The CLKNETSIM_PATH environment variable should point to the directory where clknetsim was downloaded and compiled. If the variable is not set, the tests will look for clknetsim in ./clknetsim in the current directory. The tests are written in bash and they can be run directly. The ./run script runs all tests.