<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: HTTP Apache ModStatus Totals Sensor

SRP ciphers

• This sensor does not support Secure Remote Password (SRP) ciphers.

Smart URL replacement

• This sensor supports smart URL replacement.

IPv6

• This sensor supports IPv6.

Performance impact

• This sensor has a low performance impact.

Knowledge Base

• Knowledge Base: Which HTTP status code leads to which HTTP sensor status?

Timeout (Sec.)

Enter a timeout in seconds for the request. Enter an integer. The maximum timeout value is 900 seconds (15 minutes).

If the reply takes longer than this value, the sensor cancels the request and shows a corresponding error message.

URL

Enter the URL to the mod_status module on your Apache server. PRTG automatically appends /server-status?auto to it. If you enter an absolute URL, the sensor uses this address independently of the IP Address/DNS Name setting of the parent device.

PRTG uses a smart URL replacement with which you can use the parent device's IP address or Domain Name System (DNS) name setting as part of the URL. For more information, see section Smart URL Replacement.

Authentication

Define if authentication is necessary on the web page:

• Web page does not need authentication (default)
• Web page needs authentication

User Name

This setting is only visible if you select Web page needs authentication above.

If the proxy requires authentication, enter the user name for the proxy login. Enter a string.

Password

This setting is only visible if you select Web page needs authentication above.

Enter a password.

Authentication Method

This setting is only visible if you select Web page needs authentication above.

Select the authentication method that the URL uses:

• HTTP authentication (default): Use simple HTTP authentication.
  This authentication method transmits credentials as plain text.
• NT LAN Manager authentication: Use the Microsoft NT LAN Manager (NTLM) protocol for authentication.
• Digest access authentication: Use digest access authentication. This applies a hash function to the password, which is safer than HTTP authentication (default).

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how this sensor shows different channels:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Accesses

The number of accesses

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status

KBytes

The data transferred

This channel is the primary channel by default.