Netfilter
Netfilter
Plugin: nfacct.plugin Module: nfacct.plugin
Overview
Monitor Netfilter metrics for optimal packet filtering and manipulation. Keep tabs on packet counts, dropped packets, and error rates to secure network operations.
Netdata uses libmnl (https://www.netfilter.org/projects/libmnl/index.html) to collect information.
This collector is supported on all platforms.
This collector supports collecting metrics from multiple instances of this integration, including remote instances.
This plugin needs setuid.
Default Behavior
Auto-Detection
This plugin uses socket to connect with netfilter to collect data
Limits
The default configuration for this integration does not impose any limits on data collection.
Performance Impact
The default configuration for this integration is not expected to impose a significant performance impact on the system.
Setup
Prerequisites
Install required packages
Install libmnl-dev and libnetfilter-acct-dev using the package manager of your system.
Configuration
File
The configuration file name for this integration is netdata.conf.
Configuration for this specific integration is located in the [plugin:nfacct] section within that file.
The file format is a modified INI syntax. The general structure is:
[section1]
option1 = some value
option2 = some other value
[section2]
option3 = some third value
You can edit the configuration file using the edit-config script from the
Netdata config directory.
cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config netdata.conf
Options
| Name | Description | Default | Required |
|---|---|---|---|
| update every | Data collection frequency. | 1 | no |
| command options | Additinal parameters for collector | no |
Examples
There are no configuration examples.
Metrics
Metrics grouped by scope.
The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
Per Netfilter instance
This scope has no labels.
Metrics:
| Metric | Dimensions | Unit |
|---|---|---|
| netfilter.netlink_new | new, ignore, invalid | connections/s |
| netfilter.netlink_changes | insert, delete, delete_list | changes/s |
| netfilter.netlink_search | searched, search_restart, found | searches/s |
| netfilter.netlink_errors | icmp_error, insert_failed, drop, early_drop | events/s |
| netfilter.netlink_expect | created, deleted, new | expectations/s |
| netfilter.nfacct_packets | a dimension per nfacct object | packets/s |
| netfilter.nfacct_bytes | a dimension per nfacct object | kilobytes/s |
Alerts
There are no alerts configured by default for this integration.