PRTG Manual: SSL Security Check Sensor
The SSL Security Check sensor monitors Secure Sockets Layer (SSL)/Transport Layer Security (TLS) connectivity to the port of a device. It tries to connect to the specified TCP/IP port number of a device with different SSL/TLS versions and shows if the device supports a particular protocol.
For a detailed list and descriptions of the channels that this sensor can show, see section Channel List.
- Dutch: SSL Security Check
- French: SSL vérification de sécurité
- German: SSL-Sicherheitsüberprüfung
- Japanese: SSL セキュリティーチェック
- Portuguese: Verificação de segurança SSL
- Russian: Проверка безопасности SSL
- Simplified Chinese: SSL 安全检查
- Spanish: Comprobación de seguridad SSL
Consider the following remarks and requirements for this sensor:
Remark |
Description |
---|---|
Protocols |
This sensor only checks accepted protocols. It does not consider the used ciphers. |
IPv6 |
This sensor supports IPv6. |
Performance impact |
This sensor has a very low performance impact. |
Lookups |
This sensor uses lookups to determine the status values of one or more channels. |
Knowledge Base |
Knowledge Base: How do you determine the protocol security ratings of the SSL Security Check sensor? |
The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:
- sslsensor
For more information about basic sensor settings, see section Sensor Settings.
Setting |
Description |
---|---|
Timeout (Sec.) |
Enter a timeout in seconds for the request. Enter an integer. The maximum timeout value is 900 seconds (15 minutes).
|
Port |
Enter the number of the port to which this sensor connects. Enter an integer. The default port is 443. |
Virtual Host (SNI Domain) |
Enter the host name that the sensor queries. The sensor uses this host for the connection if the target server has multiple certificates on the same IP address and IP port when using Server Name Indication (SNI). |
Setting |
Description |
---|---|
Use SOCKS Proxy (v5 only) |
Define if the sensor uses a SOCKS proxy server for the sensor connection:
|
Server |
This setting is only visible if you select Use SOCKS proxy above. Enter the IP address or host name of the proxy server that the sensor uses for connection. |
Port |
This setting is only visible if you select Use SOCKS proxy above. Enter the port number of the proxy server that the sensor uses for connection. |
User Name |
This setting is only visible if you select Use SOCKS proxy above. If the proxy server requires authentication, enter a user name. |
Password |
This setting is only visible if you select Use SOCKS proxy above. If the proxy server requires authentication, enter the password for the user you specified above. |
Setting |
Description |
---|---|
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.
|
Graph Type |
Define how this sensor shows different channels:
|
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. |
By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click under the corresponding setting name to disable the inheritance and to display its options.
For more information, see section Inheritance of Settings.
Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.
Channel |
Description |
---|---|
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 |
Security Rating |
The security of the connection to the defined port
|
SSL 2.0 (Deprecated) |
No longer available |
SSL 3.0 (Weak) |
The status of connections using SSL v3
|
TLS 1.0 (Weak) |
The status of connections using TLS 1.0
|
TLS 1.1 (Weak) |
The status of connections using TLS 1.1
|
TLS 1.2 (Strong) |
The status of connections using TLS 1.2
|
TLS 1.3 (Perfect) |
The status of connections using TLS 1.3
|
KNOWLEDGE BASE
What security features does PRTG include?
How do you determine the protocol security ratings of the SSL Security Check sensor?