How does Site24x7 detect the network interface status of a Linux server?
Site24x7's Linux server monitoring agent checks the network interface status of your server using the below command: 
/bin/cat /sys/class/net/<interface_name>/operstate
This command has three possible outputs:
- Up - Indicates that data transfer is happening through this interface.
- Down - Indicates that data transfer is not happening through this interface.
- Unknown - Some drivers do not report link state, usually due to hardware limitations. In these cases, the state is shown as Unknown.
 
It is important to note that Site24x7 does not use the ifconfig command (example: ifconfig -a ). This is because the ifconfig command only states whether the network interface has a connection or not and doesn't state whether there is any data transfer happening through that interface.
- Related Articles
- How to set up alerts for network device data collection issues- When your network monitoring interfaces are not collecting data due to issues in the Network Module, you'll want to be alerted. To set up alerts, you need to add or edit the threshold and availability profile of the On-Premise Poller, which is used ... 
- Alert Suppression – achieve better false alerts protection through dependency configuration in monitor groups- To help limit the number of alerts sent when critical devices fail, Site24x7 allows you to create dependency relationships between the critical device monitors and the monitors for resources that lay beyond these devices. A network outage usually ... 
- How to configure the NGINX status page for monitoring NGINX performance- The NGINX plugin uses the NGINX status page to pull the performance metrics of the NGINX server. You may encounter the following errors while installing the NGINX plugin integration: Error_code : HTTP Error 404: This error usually indicates that the ... 
- Steps taken by Site24x7 to prevent false alerts- Site24x7 is committed to zero false alerts and we have numerous measures in place to make sure downtime alerts from Site24x7 are genuine. Site24x7 eliminates false alarms by applying the "False Alarm Protector". Threshold and Availability Profiles ... 
- Alert Notifications badge- What is Alert Notification badge? View real-time status updates for all your monitors with the Alert Notifications badge on the top-right corner of the client dashboard. This feature ensures that no critical updates are missed, even on a static ...