Added check_syslog, which checks that all hosts logs to syslog.

Makefile

 DESTDIR = /usr/local/nagios/libexec/
 SCRIPTS = check_cups check_glsa check_saned check_lpd check_hddtemp \
-	check_link_status check_true check_lysrdiff
+	check_link_status check_true check_lysrdiff check_syslog
 
 all:;
 

check_syslog

+#!/usr/bin/env python
+
+# Check that the syslog file for a certain host has changed recently.
+# This script assumes that syslog log files are created using the
+# following hierarchy:
+#
+#   /misc/syslogs/2006-12/2006-12-18/sellafield
+#
+# where 2006 is a year, 12 a month, 18 a day, and sellafield a hostname.
+
+import time
+import os
+import errno
+
+def filename(y, m, d, host):
+    return "/misc/syslogs/%04d-%02d/%04d-%02d-%02d/%s" % (
+        y, m, y, m, d, host)
+
+def find_newest_file(hostname):
+    t = time.time()
+    for attempts in range(14):
+        tm = time.localtime(t)
+        fn = filename(tm.tm_year, tm.tm_mon, tm.tm_mday, hostname)
+        try:
+            statval = os.stat(fn)
+        except OSError, e:
+            if e.errno != errno.ENOENT:
+                raise
+        else:
+            return fn, statval
+        t -= 24 * 3600
+    return None, None
+
+def check_host(hostname):
+    fn, statval = find_newest_file(hostname)
+    if fn is None:
+        print "CRITICAL - no activity within the last 14 days"
+        sys.exit(2)
+    age = time.time() - statval.st_mtime
+    if age > 10 * 3600:
+        print "WARNING - no activity for %.1g hours" % (age / 3600.0)
+        sys.exit(1)
+    else:
+        print "OK - activity %.2g hours ago" % (age / 3600.0)
+    
+
+if __name__ == '__main__':
+    import sys
+
+    check_host(sys.argv[1])