Category Archives: ntp

Correct way to run an ntp server

Intro Concerns about DOS and DDOS have been heightened recently, for instance http://securityaffairs.co/wordpress/20934/cyber-crime/symantec-network-time-protocol-ntp-reflection-ddos-attacks.html. A more bare-bones, antiseptic description is here in CVE-2013-5211. Unfortunately those inventive hackers have found new ways to create headaches for us good guys. Last month saw … Continue reading

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The IT Detective Agency: ntp server shows the wrong time after patching

Intro One of my ntp servers hadn’t been patched in awhile so it was time. Other systems rely on it for time synchronization. The next morning after the patching I noticed that the ntp service wasn’t even running. I started … Continue reading

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