By default ssh password login is disabled on above cloud provider
To enable SSH root login edit /etc/ssh/sshd_config and enable below options and restart sshd service.PasswordAuthentication yes
PermitRootLogin yes
Restart SSH Servicesystemctl restart sshd
# Install Prometheus https://prometheus.io/download/wget https://github.com/prometheus/prometheus/releases/download/v2.13.1/prometheus-2.13.1.linux-amd64.tar.gztar -xf prometheus-2.13.1.linux-amd64.tar.gznano /etc/systemd/system/prometheus.service
mv prometheus-2.13.1.linux-amd64 /etc/prometheus
[Unit]
Description=Prometheus
Wants=network-online.target
After=network-online.target
[Service]
User=root
Group=root
Type=simple
ExecStart=/usr/local/bin/prometheus \
–config.file /etc/prometheus/prometheus.yml \
–storage.tsdb.path /var/lib/prometheus/ \
–web.console.templates=/etc/prometheus/consoles \
–web.console.libraries=/etc/prometheus/console_libraries
[Install]
WantedBy=multi-user.target
cd /etc/prometheus
cp prometheus promtool tsdb /usr/local/bin/
systemctl daemon-reload
systemctl enable prometheus
systemctl start prometheus
Prometheus port : 9090
# Install node_exporter
wget https://github.com/prometheus/node_exporter/releases/download/v0.18.1/node_exporter-0.18.1.linux-amd64.tar.gz
tar -xf node_exporter-0.18.1.linux-amd64.tar.gz
cp node_exporter-0.18.1.linux-amd64 /node_exporter /usr/local/bin/
nano /etc/systemd/system/node_exporter.service
[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target
[Service]
User=root
Group=root
Type=simple
ExecStart=/usr/local/bin/node_exporter
[Install]
WantedBy=multi-user.target
systemctl daemon-reload
systemctl start node_exporter
systemctl status node_exporter
systemctl enable node_exporter
# add node_exporter to prometheus.yml
systemctl restart prometheus
iptables -A INPUT -p tcp --dport 22 -s 192.168.0.10 -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -s 10.16.10.10 -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j DROP
#Drop All rules
iptables -F