When going to this page, the first item you'll see is any ports down and needing attention in the 'Currently down' box. If the box shows zero, then all of your ports are up and available.
If any are down, this number will show how many and next to this, in the 'Down ports details', the ports that need attention.
Below this section, you'll find three simple graphs that give you a visual representation of how your monitored ports are performing.
The first graph shows which ports are the most problematic, then the average time that certain ports are down and finally, the average amount of time each port is down.
The next section is your raw data showing filterable details.
IP address
Some people have changing IP addresses and are likely using DDNS services. This column shows what the IP address was at the time of the port outage which could be useful information in some cases.
Note that yellow colored IP address entries mean that the IP changed while the port was still being monitored as being down. This is reflected in no entries being entered into the last three columns and the next new line is the continuation of the port being monitored using the new IP address.
Protocol
Currently, only TCP is supported. UDP could be added if there is enough demand for it.
Port
The port being monitored.
Port status
In most cases, this will show 'closed' as this was the result of the last scan. On some cases, the port may show as 'open' meaning that the scan may have occurred in a way that allowed the port to be seen as back online depending on the last scan timing.
Port service
This indicates the typical well known service name for the port. In some cases, this can be ignored if you are doing something custom.
First down
Shows when the port was first found to be unreachable.
Last down
Shows the last scan date/time when the port continued to be actively monitored as being down. In some cases, depending on the next scan timing, both the Last down and one of the remaining three ports could have the same date/time. This simply means the event ended with one of the following conditions.
Back up
The port was found to be back up or online and available again.
Cleared
Not used in this application. Allows for a software based entry.
Removed
The port was removed from the scanning list and is no longer being monitored.
Note that scanning times are based on your settings which must be kept in mind when looking at reports. In other words, a scan may have happened 30 seconds ago or will happen in the next five minutes, depending on your settings. The scanning cannot be done in real time as this would be an inappropriate use of the Internet and scanning policies.
Note also that we use a TCP based scanning method to again be Internet friendly.
