:::tip This section provides the installation steps for the ElastiFlow Unified SNMP Collector. Many users get started using ElastiFlow with the Elastic Stack (Elasticsearch and Kibana). To install and configure the Elastic Stack step-by-step instructions are provided for both Ubuntu/Debian and RedHat/CentOS. :::
The ElastiFlow Unified SNMP Collector can be installed natively on Linux. Packages are currently provided for and supported on the Linux distributions and versions listed in the following table.
Distribution
Versions
Ubuntu/Debian
18.04 LTS, 20.04 LTS, 22.04 LTS
RHEL/CentOS
7.x, 8.x
Ubuntu/Debian Installation (deb)
The Debian package for the Unified SNMP Collector can be downloaded from here. It can be used for installation on most Debian-based systems such as Debian and Ubuntu.
Download the .deb Package
The package can be easily downloaded using either the wget or curl command:
To ensure the downloaded file was fully downloaded and wasn't corrupted or tampered with, you can verify the provided checksum matches.
# get checksum of the downloaded file:sha256sumsnmp-collector_6.4.2_linux_amd64.deb# verify the checksum provided from the previous command matches the checksum here:https://elastiflow-releases.s3.us-east-2.amazonaws.com/snmp-collector/snmp-collector_6.4.2_linux_amd64.deb.sha256
GPG Verification
ElastiFlow signs the Debian package with a GNU Privacy Guard (GPG) key. To verify the Debian package, download and import the ElastiFlow GPG public key:
Next, download the signature file:
Finally, verify the file with the signature:
Ensure that libpcap-dev is Installed
The collector requires libpcap-dev. Check if the libpcap-dev package is installed:
If installed, the output will look similar to the follow:
If it is not present, install it:
Install the .deb Package
There are two methods to install the Unified SNMP Collector package, apt or dpkg.
Install with apt
Install with dpkg
RedHat/CentOS Installation (rpm)
The RPM package for the Unified SNMP Collector can be downloaded from here. It can be used for installation on most RedHat-based systems such as RHEL and CentOS.
Download the .rpm Package
The package can be easily downloaded using wget or curl:
Verify the Package
Checksum Verification
To ensure the downloaded file was fully downloaded and wasn't corrupted or tampered with, you can verify the provided checksum matches.
GPG Verification
ElastiFlow signs the RPM package with a GNU Privacy Guard (GPG) key. To verify the RPM package, download and import the ElastiFlow GPG public key:
Next, download the signature file:
Finally, verify the file with the signature:
Ensure that libpcap-dev is Installed
The Unified SNMP Collector package can be installed using yum. The collector requires that libpcap-devel also be installed.
Install libpcap & libpcap-devel on RHEL/CentOS 7.x
Install libpcap & libpcap-devel on RHEL/CentOS 8.x
Install/Upgrade the .rpm Package
If installing the Unified SNMP Collector package for the first time, i.e. NOT upgrading, run the following:
If upgrading from a previously installed Unified SNMP Collector package, run the following:
Configuration
The Unified SNMP Collector will be installed to run as a daemon manged by systemd. Configuration of the collector is provided via environment variables and, depending on the enabled options, via various configuration files which by default are located within /etc/elastiflow.
To configure the environment variables, edit the file /etc/systemd/system/snmpcoll.service.d/snmpcoll.conf. For details on all of the configuration options, please refer to the Configuration Reference.
:::tip At a minimum the Unified SNMP Collector must point to a valid data store. The most common installation uses Elasticsearch and Kibana as the data store.
To install and configure the Elastic Stack step-by-step instructions are provided for both Ubuntu/Debian and RedHat/CentOS. :::
Running the Collector
To start the collector, execute the follow commands:
To ensure the collector has started and is running, execute:
The collector can be stopped using:
If you want the collector to be started automatically when the system is booted, it must be enabled:
# get checksum of the downloaded file:
sha256sum snmp-collector-6.4.2-1.x86_64.rpm
# verify the checksum provided from the previous command matches the checksum here:
https://elastiflow-releases.s3.us-east-2.amazonaws.com/snmp-collector/snmp-collector-6.4.2-1.x86_64.rpm.sha256
# import public key into gpg keychain
curl -o- https://elastiflow-releases.s3.us-east-2.amazonaws.com/elastiflow.pgp | gpg --import -
# trust the public key
echo "6A2E26EFDE24AA7A634A442ED5C0572E5D212F6B:6:" | gpg --import-ownertrust
# import public key into rpm trust store
rpm --import https://elastiflow-releases.s3.us-east-2.amazonaws.com/elastiflow.pgp