1190774200      boh1      199.7.50.75     2007092600
1190774202      boh2      199.7.54.75     DOWN
1190774202      boh3      199.7.60.75     2007092600
1190774212      boh4      199.7.55.75     2007092600



set xdata time                                  # The x axis data is time
set timefmt "%s"                                # Time since epoch
set xlabel "Time"                               # The label for x axis
set ylabel "Availability"               # The label for y axis
set format x "%b %d"                    # On the x axis, we want tics like Jun 10
plot 'acns_audit.txt' using 1:4 with linespoints