cfe754f665
- What I did Add configuration to avoid ntpd from panic and exit if the drift between new time and current system time is large. - How I did it Added "tinker panic 0" in ntp.conf file. - How to verify it [this assumes that there is a valid NTP server IP in config_db/ntp.conf] Change the current system time to a bad time with a large drift from time in ntp server; drift should be greater than 1000s. Reboot the device. Before the fix: 3. upon reboot, ntp-config service comes up fine, ntp service goes to active(exited) state without any error message. This is because the offset between new time (from ntp server) and the current system time is very large, ntpd goes to panic mode and exits. The system continues to show the bad time. After the fix: 3. Upon reboot, ntp-config comes up fine, ntp services comes up from and stays in active (running) state. The system clock gets synced with the ntp server time.
81 lines
2.8 KiB
Django/Jinja
81 lines
2.8 KiB
Django/Jinja
###############################################################################
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# Managed by Ansible
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# file: ansible/roles/acs/templates/ntp.conf.j2
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###############################################################################
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# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help
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# To avoid ntpd from panic and exit if the drift between new time and
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# current system time is large.
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tinker panic 0
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driftfile /var/lib/ntp/ntp.drift
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# Enable this if you want statistics to be logged.
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#statsdir /var/log/ntpstats/
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statistics loopstats peerstats clockstats
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filegen loopstats file loopstats type day enable
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filegen peerstats file peerstats type day enable
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filegen clockstats file clockstats type day enable
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# You do need to talk to an NTP server or two (or three).
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#server ntp.your-provider.example
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# pool.ntp.org maps to about 1000 low-stratum NTP servers. Your server will
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# pick a different set every time it starts up. Please consider joining the
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# pool: <http://www.pool.ntp.org/join.html>
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{% for ntp_server in NTP_SERVER %}
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server {{ ntp_server }} iburst
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{% endfor %}
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#only listen on MGMT_INTERFACE, LOOPBACK_INTERFACE ip when MGMT_INTERFACE is not defined, or eth0
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# if we don't have both of them (default is to listen on all ip addresses)
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interface ignore wildcard
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{% if MGMT_INTERFACE %}
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{% for (mgmt_intf, mgmt_prefix) in MGMT_INTERFACE|pfx_filter %}
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interface listen {{ mgmt_prefix | ip }}
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{% endfor %}
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{% elif LOOPBACK_INTERFACE %}
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{% for (name, prefix) in LOOPBACK_INTERFACE|pfx_filter %}
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{% if prefix | ipv4 and name == 'Loopback0' %}
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interface listen {{ prefix | ip }}
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{% endif %}
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{% endfor %}
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{% else %}
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interface listen eth0
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{% endif %}
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interface listen 127.0.0.1
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# Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
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# details. The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions>
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# might also be helpful.
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#
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# Note that "restrict" applies to both servers and clients, so a configuration
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# that might be intended to block requests from certain clients could also end
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# up blocking replies from your own upstream servers.
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# By default, exchange time with everybody, but don't allow configuration.
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restrict -4 default kod notrap nomodify nopeer noquery
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restrict -6 default kod notrap nomodify nopeer noquery
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# Local users may interrogate the ntp server more closely.
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restrict 127.0.0.1
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restrict ::1
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# Clients from this (example!) subnet have unlimited access, but only if
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# cryptographically authenticated.
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#restrict 192.168.123.0 mask 255.255.255.0 notrust
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# If you want to provide time to your local subnet, change the next line.
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# (Again, the address is an example only.)
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#broadcast 192.168.123.255
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# If you want to listen to time broadcasts on your local subnet, de-comment the
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# next lines. Please do this only if you trust everybody on the network!
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#disable auth
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#broadcastclient
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