#Ntp panic mode update
#Ntp panic mode windows

Without specialized equipment, your network is suddenly off by the better part of a second from NIST in the US or NPL in the UK. Add in switches, routers, and other network infrastructure, and that tenth of a second multiplies several times over. However, we all know that that ideal world doesn't exist. The speed of light is fast-in a vacuum, a photon could circle our world more than seven times per second-and even though it travels approximately 31 percent slower through a typical optical fiber network, you could easily transmit a single bit of data halfway around the world in less than a tenth of a second.

#Ntp panic mode update

Why can't we just update our computers to the public NTP servers at NIST, which runs one of the world's most accurate clocks, and call it a day? Unfortunately, latency exists everywhere, and it makes perfect synchronization impossible. For financial and scientific institutions, time synchronization must be accurate to a billionth-or in some specific cases, even a trillionth-of a second, but even commercial and industrial organizations are starting to push for synchronization accuracy in the sub-millisecond range. However, it can mean the difference between correctly troubleshooting a conflict in minutes and having no idea why the server is figuratively on fire. However if you want 'proper' NTP (especially with sub 1.0us accuracy and GPS/10MHz reference or being a pool host), then not having a dedicated box tuned for NTP and accuracy would be silly.Time synchronization serves a fundamental role in any network, but it's too often added as an afterthought. The only way to fix it really is to manually set the time and then let NTP do it's thing.ДЇinally, pfSense also uses OpenNTPD, which is a cut down and considerably simpler and smaller version of NTP, which is more than fine if you're only running stratum2/3 with a reference. The best way to deal with this is for pfSense to actually save the time at shutdown somewhere, and reset it (even if it's not totally accurate) at boot time, so NTP can then fix the time from this less-drifted reference rather than from 1970. When the date is completely out of whack, like 1970 vs 2009, it 'panics' (not a kernel panic, just an NTP panic) and its behaviour isn't really 100%. The reason is NTP under normal operation will only fix drift by up to 2 seconds per second (this is at least under Linux, not sure about FreeBSD). However, when a clock is out of sync but a HUGE margin like this, NTP sort of goes into a panic mode and starts wondering whether to believe the system clock or reset it. However NTPd is there precisely for the reason to compensate for the lack of a hardware clock. If you're not using ALIX, then chances are your CMOS battery is dead. ?ДЄre you running pfSense on an ALIX 2/3 machine? Because they don't have a clock battery, the clock resets every time it's rebooted (though you can add a battery if you want to get your soldering iron out). UPDATE: The NTPD service shows its running, but the OpenNTP log is empty. pfSense itself seems to know what the correct time and day it is. pfSense OpenNTPD configuration fileДЄny clues on what's going on? Otherwise the system is working perfectly, and it had no problem last week, and has been running for several months. The URL's below are working fine from my location.

I waited an hour after reboot and still no NTP. I tried freshly booting pfSense and everything else seems working.

#Ntp panic mode windows

None of the Windows or Linux boxes want to play NTP with the pfSense box anymore. After the unit rebooted I let it sit for a day, then retested NTP, and either we get the 'Peer's stratum is less than the Host Stratum' or 'NTP Rejected because its been too long since peer synchronized'. A couple days ago we noticed the NTP server now isn't working. Running pFsense 1.2.3-RC3 on an Alix board, and everything was running fine last week, and NTP was fine. HmmmвЂ¦I'm having trouble figuring this one out.