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Plesk administrator receives mails: Cron error: /usr/sbin/ntpdate: not found

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Plesk for Linux kb: technical ABT: Group A

Applicable to:

  • Plesk for Linux

Symptoms

Emails with the following error are sent to Plesk server administrator:

Subject: Cron <root@example.com> /usr/sbin/ntpdate -b -s 3.pool.ntp.org  
/bin/sh: 1: /usr/sbin/ntpdate: not found

Cause

The package ntpdate used by scheduled task is not installed.

Resolution

When ntpdate is not used

Note: In modern operating systems nptd, chrony or systemd-timesyncd may be installed by default and ntpdate package is deprecated or not available. It is suggested to synchronize server time using NTP Timesync extension instead.

  1. Log into Plesk
  2. Navigate to Tools & Settings > Scheduled Tasks (Cron jobs)
  3. Select the scheduled task /usr/sbin/ntpdate -b -s [n].pool.ntp.org:
    Remove ntpdate scheduled task
  4. Click Remove
When ntpdate should be used

  1. Connect to the server via SSH

  2. Install the ntpdate package:

    • On Debian / Ubuntu operating systems:

      # apt-get update && apt-get install ntpdate

    • On RHEL / CentOS / Cloudlinux operating systems:

      # yum install ntpdate

Comments

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  • Avatar
    Rucosoft

    ntpdate is not available on the repos, you need to update to chrony

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