... | ... | @@ -433,6 +433,13 @@ That script (actually called `dsa-check-mirrorsync`) actually makes an |
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HTTP request to every mirror and checks the timestamp inside a "trace"
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file (`.serial`) to make sure everyone has the same copy of the site.
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There's also a miniature reimplementation of [Nagios](howto/nagios) called
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[mininag](https://gitweb.torproject.org/admin/dns/mini-nag.git/) which runs on the DNS server. It performs health checks
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on the mirrors and takes them out of the DNS zonefiles if they become
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unavailable or have a scheduled reboot. This makes it possible to
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reboot a server and have the server taken out of rotation
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automatically.
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## Logs and metrics
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All tor webservers keep a minimal amount of logs. The IP address and
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