Início / server / Perguntas / 913968
Accepted
BentCoder
Asked: 2018-05-28 00:12:07 +0800 CST

O NTP não parece estar ativado e sincronizado no Debian Jessie

  • 772

Quando sigo as etapas abaixo no Ubuntu, o NTP é ativado e sincronizado. No entanto, o caso é oposto no Debian Jessie. Alguém sabe a razão pela qual o Debian diz "não"? Também devo me preocupar, pois a "hora local" está correta?

Passos dados

$ timedatectl set-timezone Europe/London

$ sudo apt-get install -y ntp

$ cat /etc/ntp.conf
driftfile /var/lib/ntp/ntp.drift
server 0.uk.pool.ntp.org iburst
server 1.uk.pool.ntp.org iburst
server 2.uk.pool.ntp.org iburst
server 3.uk.pool.ntp.org iburst
restrict 127.0.0.1
restrict ::1

$ service ntp stop
$ ntpd -gq
$ service ntp start

$ systemctl enable ntp
$ systemctl restart ntp

Status do Debian

$ timedatectl
      Local time: Sun 2018-05-27 08:57:32 BST
  Universal time: Sun 2018-05-27 07:57:32 UTC
        RTC time: Sun 2018-05-27 07:57:30
       Time zone: Europe/London (BST, +0100)
     NTP enabled: no
NTP synchronized: no
 RTC in local TZ: no
      DST active: yes
 Last DST change: DST began at
                  Sun 2018-03-25 00:59:59 GMT
                  Sun 2018-03-25 02:00:00 BST
 Next DST change: DST ends (the clock jumps one hour backwards) at
                  Sun 2018-10-28 01:59:59 BST
                  Sun 2018-10-28 01:00:00 GMT


$ ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+h88-150-240-202 217.114.59.66    3 u   36   64    1   10.349   -1.919   0.882
*ntp3.wirehive.n 195.66.241.2     2 u   33   64    3   13.717   -0.094   1.398
+ns1.do.steersne 195.66.241.3     2 u   32   64    3    9.994   -1.230   0.947

Status do Ubuntu

$ timedatectl
      Local time: Sun 2018-03-14 10:51:48 GMT
  Universal time: Sun 2018-03-14 10:51:48 UTC
        RTC time: Sun 2018-03-14 10:51:46
       Time zone: Europe/London (GMT, +0000)
 Network time on: yes
NTP synchronized: yes
 RTC in local TZ: no
ntp

1 respostas

  1. Best Answer

    Para habilitar a sincronização de tempo com timedatectluse o comando a seguir.

    timedatectl set-ntp true

    Isso habilitará o systemdserviço systemd-timesyncd.service. De man timedatectl.

    set-ntp [BOOL]
     Takes a boolean argument. Controls whether network time synchronization is active and enabled (if
     available). This enables and starts, or disables and stops the systemd-timesyncd.service unit. It does not
     affect the state of any other, unrelated network time synchronization services that might be installed on
     the system. This command is hence mostly equivalent to: systemctl enable --now systemd-timesyncd.service
     and systemctl disable --now systemd-timesyncd.service, but is protected by a different access policy.

     Note that even if time synchronization is turned off with this command, another unrelated system service
     might still synchronize the clock with the network. Also note that, strictly speaking,
     systemd-timesyncd.service does more than just network time synchronization, as it ensures a monotonic
     clock on systems without RTC even if no network is available. See systemd-timesyncd.service(8) for details
     about this.

    Portanto, é possível que, por exemplo , ntpou chronyjá estejam em execução, mas timedatectlpodem não estar cientes disso.

    Além disso, você pode ter que configurar seus servidores NTP, a /etc/systemd/timesyncd.confmenos que obtenha seus servidores NTP via DHCP ou eles também podem ser configurados em uma systemd-networkd.serviceconfiguração correspondente. Para mais informações consulte man systemd-timesyncd.service.

    • 4

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