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Subject: EMail on unexpected reboot
Message-Id: <83D445F4-677E-461F-B3FA-AA364B22C653@gushi.org>
Date: Wed, 15 May 2024 04:43:01 -0400
To: questions <questions@freebsd.org>
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X-Spamd-Bar: ------
X-Spamd-Result: default: False [-6.10 / 15.00];
	DWL_DNSWL_MED(-2.00)[gushi.org:dkim];
	NEURAL_HAM_MEDIUM(-1.00)[-1.000];
	NEURAL_HAM_LONG(-1.00)[-1.000];
	NEURAL_HAM_SHORT(-1.00)[-1.000];
	RCVD_DKIM_ARC_DNSWL_MED(-0.50)[];
	DMARC_POLICY_ALLOW(-0.50)[gushi.org,none];
	MV_CASE(0.50)[];
	R_SPF_ALLOW(-0.20)[+mx];
	R_DKIM_ALLOW(-0.20)[gushi.org:s=prime2014];
	RCVD_IN_DNSWL_MED(-0.20)[2620:137:6000:10::142:from];
	ONCE_RECEIVED(0.10)[];
	MIME_GOOD(-0.10)[text/plain];
	MIME_TRACE(0.00)[0:+];
	RCPT_COUNT_ONE(0.00)[1];
	TO_MATCH_ENVRCPT_ALL(0.00)[];
	TO_DN_ALL(0.00)[];
	RCVD_TLS_ALL(0.00)[];
	RCVD_COUNT_ONE(0.00)[1];
	ARC_NA(0.00)[];
	PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org];
	FROM_EQ_ENVFROM(0.00)[];
	FROM_HAS_DN(0.00)[];
	DKIM_TRACE(0.00)[gushi.org:+];
	MLMMJ_DEST(0.00)[questions@freebsd.org];
	RCVD_VIA_SMTP_AUTH(0.00)[];
	MID_RHS_MATCH_FROM(0.00)[];
	ASN(0.00)[asn:393507, ipnet:2620:137:6000::/44, country:US];
	HAS_XAW(0.00)[]
X-Rspamd-Queue-Id: 4VfRZb3tz9z4ZwV

Hey there all,

Is there something in the standard rc() structure that detects an =
unclean reboot and can take an action on it, like sending an email?

I=E2=80=99m not so interested in saving a core file or anything like =
that, just that some machines reboot so fast that the usual monitoring =
can miss it.

Thoughts welcome.

-Dan
(Will be at BSDCan, say Hi, I=E2=80=99ve got blue hair).=