Service Monitor 0.6.0
 
Table of Contents
Start
Table of Contents
1. Conventions
2. General information about David system
3. Terminology
4. Installation
5. Service Manager requirements
6. Installation
7. General
8. Network Service Monitor (dnsmd)
9. Buttons the most often used in Web applications
10. Network Service Monitor Configurator
11. Network Service Browser
 
 

11.2. Description

Network Service Browser application is available in Network Services tab. The top part of the application is a toolbar characteristic of all Web applications. The view, below the toolbar, depends on a current mode of the application. Network Service Browser works in two modes: as a borwser of current (last) data and as a browser of historical data, the data in selected period of time.

11.2.1. Current data mode

If you want to show current, last data of moniotred network services, you should choose Now tab of the panel below the toolbar. Below the panel with tabs, a list of hosts and their monitored TCP ports is placed. The tab makes possible a filtration of the presented list of results. Open all button pulls the whole list presenting ports of all visible hosts.

The list is divided into columns presenting monitoring results of particular ports. Meaning of columns shows the table below:

Table 11.1. Meaning of columns of results list of monitored TCP ports

Column Meaning
Host/port A short description of the monitored host or TCP port.
State A result of port monitoring: OK or an error description.
Last check A date of the last port monitoring.
Connect time (ms) Time from a moment of running of the connection.
Total time (ms) Total time of monitoring of the port.
Script code Return code of external script, if it was run for a given port.

11.2.2. Historical data mode

If you want to show historical data of monitored network services, you should to choose History tab of the panel below the toolbar. A left panel of the view includes a list of hosts with monitored TCP ports, and the right one shows data of selected services.

The left panel, besides a pulled list of services, includes elements allowing to choose a way of data presenting, their time range etc. There is a searching parameter of service list describing its range, on the top of the panel. It is also accesible by Setting tab. Below the searching option, an edited filed is palced, that allows to give a searching string, and after them there is the service list according to searching criterions. Below the list elements are placed, that allow to select a graph type (hourly, daily, weekly, monthly, yearly), if Type of view option has a value Show as graphs. Then the data are shown as graphs of connection time and as graphs of duration of the operation. If option Type of view is set on Show as logs, the data are presented as a list of logs. In the case of presenting data as graphs, height of graph accesible as Graph's height option is additional parameter.

Common parameters for two type of presenting data is their time range. If you want to set time range, you can use two identical set of options, that are placed one set above the second one, below Graph's height parameter. The top options show beginning, while the bottom options show the end of range. Below there is a toolbar with buttons that enable to save data selected to the report.

When data are shown as logs, the list is divided into columns similarly to view of Now tab. Below table described meaning of particular columns:

Table 11.2. Meaning of columns of historical results list of monitored TCP ports

Column Meaning
No The next number of entry for a given service.
Time Time of service measurement.
State A result of port monitoring: OK or en error description.
Connect time (ms) Time from the moment of running of the connection.
Total time (ms) Total time of monitoring of the service.
Script code Return code of external script, if it was run for a given service.

11.2.2.1. Buttons of the index panel toolbar

Meaning of buttons placed on the bottom of the monitored service list is as follows:

Table 11.3. Network Service Browser - description of buttons on the index panel

Button Description
Add selected services to previously saved ones and show them all.
Save only currently visible and checked services and show them.
Save currently visible and checked services.
Add checked services to previously saved and show a list of all saved services.
Delete all saved selections of services.

11.2.3. Changing working parameters of the application

Only working parameter of the application, that can be set by Setting tab, is a way of searching of hosts list and their monitored services. The option can have one of three possibilities:

  • Search hosts only
  • Search ports only
  • Search all