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NTP Servers Master List (Zero Data Loss)

Best Practices for Using NTP

• Use multiple servers: Always configure at least 3–4 servers from different providers to avoid single points of failure.
• Mix vendors & geographies: Don’t rely solely on one provider (e.g., all Google or all NIST). Spread across commercial, academic, and public pools.
• Prefer Anycast where possible: For global reach, use pool.ntp.org, time.google.com, ntp.se, etc. These automatically route you to the nearest healthy server.
• Favor stratum 1/2 servers: Stratum 1 servers are closest to the reference clock; stratum 2 are usually fine and often less overloaded.
• Regional selection: Pick servers close to your geography (e.g., europe.pool.ntp.org in Europe, north-america.pool.ntp.org in North America).
• Fallbacks: Include a mix of pool.ntp.org and vendor-specific (Google, Cloudflare, Microsoft) for redundancy.

krisarmstrong

#!/usr/bin/env bash

# Disable DMG integrity verification process
defaults write com.apple.frameworks.diskimages skip-verify true

# Speed up Time machine backups 
sudo sysctl debug.lowpri_throttle_enabled=0

krisarmstrong

Open OVA/OVF file with VirtualBox
Right click the virtual machine and select 'Clone'
Import the generated .vbox file with Parallels Desktop

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def main(argv):
    inputfile = ''
    outputfile = ''
    try:
        opts, args = getopt.getopt(argv,"hi:o:", ["ifile=", "ofile="])
    except getopt.GetoptError:
        print('test.py -i <inputfile> -o <outputfile>')
        sys.exit(2)
    for opt, arg in opts:
        if opt == '-h':

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def getmount(path):
    path = os.path.abspath(path)
    while path != os.path.sep:
        if os.path.ismount(path):
            return path
        path = os.path.abspath(os.path.join(path, os.pardir))
    return path

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    system_os = sys.platform

    if sys.platform.startswith('win32'):
        # Win32-specific code here...
        print("DEBUG: Windows Version", system_os)
    elif sys.platform.startswith('linux'):
        # Linux-specific code here...
        print("DEBUG: Linux Version", system_os)
    elif sys.platform.startswith("darwin"):
        # OSX-specific code here...