For AIX:

https://github.com/thorhs/node_exporter_aix/releases

Other ways to export metrics:

If you want to integrate your AIX into Prometheus monitoring, the best way imho is to use Nigel's njmon and telegraf agent to produce “Prometheus-compatible” output. It will deliver much more output as you can expect from the Node Exporter.

This is the link to Nigel's description - https://www.ibm.com/support/pages/nimon-working-prometheus

Telegraf for AIX can be found here - https://www.power-devops.com/telegraf https://nmon.sourceforge.io/pmwiki.php?n=Site.Njmon

For Linux:

https://sourceforge.net/projects/node-exporter.mirror/files/

Example of installation on Linux:

# Download and unpack
curl -LO https://github.com/prometheus/node_exporter/releases/download/v0.18.1/node_exporter-0.18.1.linux-amd64.tar.gz
tar -xvf node_exporter-0.18.1.linux-amd64.tar.gz	
sudo mv node_exporter-0.18.1.linux-amd64/node_exporter /usr/local/bin

# Add user
sudo useradd -rs /bin/false node_exporter

# Configure service
sudo vi /etc/systemd/system/node_exporter.service

### Configuration
[Unit]
Description=Node Exporter
After=network.target
 
[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter
 
[Install]
WantedBy=multi-user.target

# Start exporter	
sudo systemctl daemon-reload
sudo systemctl start node_exporter