diff -Nur xymon-4.3.29.bak/lib/sig.c xymon-4.3.29/lib/sig.c

--- xymon-4.3.29.bak/lib/sig.c	2019-07-23 18:46:51.000000000 +0400

+++ xymon-4.3.29/lib/sig.c	2019-09-11 17:25:11.294099216 +0400

@@ -91,18 +91,15 @@

 	lim.rlim_cur = RLIM_INFINITY;

 	setrlimit(RLIMIT_CORE, &lim);

-	if (xgetenv("XYMON") == NULL) return;

-	if (xgetenv("XYMSRV") == NULL) return;

-

 	/*

 	 * Used inside signal-handler. Must be setup in

 	 * advance.

 	 */

-	strncpy(signal_xymoncmd, xgetenv("XYMON"), sizeof(signal_xymoncmd));

-	strncpy(signal_xymondserver, xgetenv("XYMSRV"), sizeof(signal_xymondserver));

+	strncpy(signal_xymoncmd, (xgetenv("XYMON") ? xgetenv("XYMON") : "xymon"), sizeof(signal_xymoncmd));

+	strncpy(signal_xymondserver, (xgetenv("XYMSRV") ? xgetenv("XYMSRV") : "0.0.0.0"), sizeof(signal_xymondserver));

 	strncpy(signal_tmpdir, xgetenv("XYMONTMP"), sizeof(signal_tmpdir));

-	snprintf(signal_msg, sizeof(signal_msg), "status %s.%s red - Program crashed\n\nFatal signal caught!\n", 

-		(xgetenv("MACHINE") ? xgetenv("MACHINE") : "XYMSERVERS"), programname);

+	snprintf(signal_msg, sizeof(signal_msg), "status+1d/group:signal %s.xymond red Check time of report - %s program crashed\n\nFatal signal caught!\n",

+		(xgetenv("MACHINE") ? xgetenv("MACHINE") : xgetenv("HOSTNAME")), programname);

 	sigaction(SIGSEGV, &sa, NULL);

 	sigaction(SIGILL, &sa, NULL);