SSL certs are required to use times in GMT per https://www.ietf.org/rfc/rfc5280.txt but the mktime() here assumes the current timezone.
Fix the time_t conversion to be done assuming GMT with timegm() and only do it once rather than twice. Display the expiry date and time with ISO format years and give an offset from GMT and a timezone to be very clear about exactly what time is being displayed. Time given is correct and now in the machine’s timezone. You can view, comment on, or merge this pull request online at: https://github.com/monitoring-plugins/monitoring-plugins/pull/1395 -- Commit Summary -- * Use GMT timezone in SSL certs -- File Changes -- M plugins/sslutils.c (6) -- Patch Links -- https://github.com/monitoring-plugins/monitoring-plugins/pull/1395.patch https://github.com/monitoring-plugins/monitoring-plugins/pull/1395.diff --- Reply to this email directly or view it on GitHub: https://github.com/monitoring-plugins/monitoring-plugins/pull/1395
