57 lines
2.0 KiB
Markdown
57 lines
2.0 KiB
Markdown
|
# Conntrack Plugin
|
||
|
|
|
||
|
|
Collects stats from Netfilter's conntrack-tools.
|
||
|
|
|
||
|
|
The conntrack-tools provide a mechanism for tracking various aspects of
|
||
|
|
network connections as they are processed by netfilter. At runtime,
|
||
|
|
conntrack exposes many of those connection statistics within /proc/sys/net.
|
||
|
|
Depending on your kernel version, these files can be found in either
|
||
|
|
/proc/sys/net/ipv4/netfilter or /proc/sys/net/netfilter and will be
|
||
|
|
prefixed with either ip_ or nf_. This plugin reads the files specified
|
||
|
|
in its configuration and publishes each one as a field, with the prefix
|
||
|
|
normalized to ip_.
|
||
|
|
|
||
|
|
In order to simplify configuration in a heterogeneous environment, a superset
|
||
|
|
of directory and filenames can be specified. Any locations that don't exist
|
||
|
|
will be ignored.
|
||
|
|
|
||
|
|
For more information on conntrack-tools, see the
|
||
|
|
[Netfilter Documentation](http://conntrack-tools.netfilter.org/).
|
||
|
|
|
||
|
|
|
||
|
|
### Configuration:
|
||
|
|
|
||
|
|
```toml
|
||
|
|
# Collects conntrack stats from the configured directories and files.
|
||
|
|
[[inputs.conntrack]]
|
||
|
|
## The following defaults would work with multiple versions of conntrack.
|
||
|
|
## Note the nf_ and ip_ filename prefixes are mutually exclusive across
|
||
|
|
## kernel versions, as are the directory locations.
|
||
|
|
|
||
|
|
## Superset of filenames to look for within the conntrack dirs.
|
||
|
|
## Missing files will be ignored.
|
||
|
|
files = ["ip_conntrack_count","ip_conntrack_max",
|
||
|
|
"nf_conntrack_count","nf_conntrack_max"]
|
||
|
|
|
||
|
|
## Directories to search within for the conntrack files above.
|
||
|
|
## Missing directrories will be ignored.
|
||
|
|
dirs = ["/proc/sys/net/ipv4/netfilter","/proc/sys/net/netfilter"]
|
||
|
|
```
|
||
|
|
|
||
|
|
### Measurements & Fields:
|
||
|
|
|
||
|
|
- conntrack
|
||
|
|
- ip_conntrack_count (int, count): the number of entries in the conntrack table
|
||
|
|
- ip_conntrack_max (int, size): the max capacity of the conntrack table
|
||
|
|
|
||
|
|
### Tags:
|
||
|
|
|
||
|
|
This input does not use tags.
|
||
|
|
|
||
|
|
### Example Output:
|
||
|
|
|
||
|
|
```
|
||
|
|
$ ./telegraf -config telegraf.conf -input-filter conntrack -test
|
||
|
|
conntrack,host=myhost ip_conntrack_count=2,ip_conntrack_max=262144 1461620427667995735
|
||
|
|
```
|