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* Change NTP client to systemd-timesyncd.Guilhem Moulin2020-11-151
| | | | | | | | | (Excluding our NTP master.) It's simpler, arguably more secure, and provides enough functionality when only simple client use-cases are desired. We allow outgoing connections to 123/udp also on NTP slaves so systemd-timesyncd can connect to the fallbacks NTP servers.
* Upgrade baseline to Debian 10.Guilhem Moulin2020-05-161
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* tr/-/_/ in group names.Guilhem Moulin2020-01-221
| | | | | | | | | | | | This avoids [DEPRECATION WARNING]: The TRANSFORM_INVALID_GROUP_CHARS settings is set to allow bad characters in group names by default, this will change, but still be user configurable on deprecation. This feature will be removed in version 2.10. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg. [WARNING]: Invalid characters were found in group names but not replaced, use -vvvv to see details
* ntp.conf: reduce delta with the packaged version.Guilhem Moulin2018-12-091
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* Localize the NTP pool hostnames.Guilhem Moulin2016-07-091
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* Tunnel internal NTP traffic through IPSec.Guilhem Moulin2016-05-221
| | | | | | | More precisely, between our NTP-master (stratum 1) host and the other machines (all stratum 2). Providing authentification and integrity for internal NTP traffic ensures a consistent time within our internal infrastructure.
* Fix NTP configuration.Guilhem Moulin2015-06-071
| | | | We've yet to get authenticated time, though.
* Assume a DNS entry for each role.Guilhem Moulin2015-06-071
| | | | | | E.g., ldap.fripost.org, ntp.fripost.org, etc. (Ideally the DNS zone would be provisioned by ansible, too.) It's a bit unclear how to index the subdomains (mx{1,2,3}, etc), though.
* Configure NTP.Guilhem Moulin2015-06-071
We use a "master" NTP server, which synchronizes against stratum 1 servers (hence is a stratum 2 itself); all other clients synchronize to this master server through IPSec.