Collection of Tools, Scripts & Templates

Ethereum-Specific

Tools	Risk mitigation	Description	Purpose	Links
Doppelbuster	SLS1 SLS14 SLS15	This tool operates independently from the Ethereum validator client, providing an extra layer of protection against double signing.	prevent double signing	https://github.com/SimplyStaking/DoppelBuster
ethereum-validators-monitoring	GIR4	Ethereum validators monitoring bot aimed to keep track of the validators performance	monitoring + alerts	https://github.com/lidofinance/ethereum-validators-monitoring
eth-block-proposal-monitor	GIR4	Monitor block proposals and rewards of validators	monitoring + alerts	https://github.com/SimplyStaking/eth-block-proposal-monitor
esd	GIR4	Watches for slashing events included on the Ethereum beacon chain and runs a script when found	monitoring slashing	https://github.com/attestantio/esd
vouch + dirk	SLS1 DOW1 DOW2 DOW6 DOW7	Splits your validator keys and replaces the standard validator client software.	multi-node validator client	https://github.com/attestantio/vouch https://github.com/attestantio/dirk
web3signer	DOW1 DOW2 DOW6 DOW7	Can sign on multiple platforms using private keys stored in an external vault, or encrypted on a disk	validator client	https://github.com/Consensys/web3signer

Monitoring

Tools	Risk mitigation	Description	Purpose	Links
Grafana	GIR4 DOW1 DOW2 DOW3 DOW7 DOW15	Observability and data visualization platform	monitoring + alerts	https://grafana.com/docs/https://github.com/grafana/grafana
Prometheus	GIR4 DOW1 DOW2 DOW3 DOW7 DOW15	Monitoring system and time series database.	monitoring + alerts	https://prometheus.io/docs/introduction/overview/https://github.com/prometheus/prometheus

Inventory tracking

Tools	Risk mitigation	Description	Purpose	Links
Internal Wiki	KEC9	Keep an updated inventory list, including the server type, purpose, and responsible team.	tracking	https://www.jetbrains.com/help/youtrack/server/knowledge-base.html
arp-scan, arpwatch	KEC4 KEC7 SLS12 SLS13	Use automation tools to detect and report any unauthorized machines	detecting	https://man.archlinux.org/man/arp-scan.1.en https://man.archlinux.org/man/arpwatch.8.en

Automation

Tools	Risk mitigation	Description	Purpose	Links
Ansible-Playbooks	GIR12 GIR21 GIR24 DOW6 DOW14	Leverage Ansible for automation of infrastructure deployment. Ensure consistency and reliability through version-controlled playbooks	automation of deployment	https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_intro.html
Helm	GIR12 GIR21 GIR24 DOW6 DOW14	The package manager for Kubernetes. Helm helps you manage Kubernetes applications	automation of deployment	https://helm.sh/
AWS-Launch Templates	GIR12 GIR21 GIR24 DOW6 DOW14	Employ AWS Launch Templates for efficient and standardized instance provisioning. Push templates into a repository and ensure it is version-controlled. Leverage template parameters to customize instances as per specific requirements.	automation of deployment	https://docs.aws.amazon.com/autoscaling/ec2/userguide/launch-templates.html
Terraform	GIR12 GIR21 GIR24 DOW6 DOW14	Automate infrastructure on any cloud	automation of deployment	https://www.terraform.io/

MFA on Servers

Tools	Risk mitigation	Description	Purpose	Links
Google Authenticator PAM module	GIR7 GIR14 KEC1 KEC7 KEC8 KEC9 KEC10 DOW16 DOW17 DOW18 SLS8 SLS9 SLS10	Implement MFA for all administrative access.	secure your server	https://github.com/google/google-authenticator-libpam
YubiHSM	GIR7 GIR14 KEC1 KEC7 KEC8 KEC9 KEC10 DOW16 DOW17 DOW18 SLS8 SLS9 SLS10	Hardware-based authentication methods	secure your server	https://developers.yubico.com/YubiHSM2/Usage_Guides/
SSH Key rotation	GIR7 GIR14 KEC1 KEC7 KEC8 KEC9 KEC10 DOW16 DOW17 DOW18 SLS8 SLS9 SLS10	Use SSH Private Keys Instead of Passwords	secure your server	https://docs.aws.amazon.com/secretsmanager/

Key Security

Tools	Risk mitigation	Description	Purpose	Links
Bitwarden	GIR1 GIR6 GIR7 GIR22 KEC1 KEC2 KEC4	Store keys securely in a key vault	secure your keys, access management	https://bitwarden.com/
Vault	GIR1 GIR6 GIR7 GIR22 KEC1 KEC2 KEC4	Another key management store that seamlessly integrates your keys into your infrastructure, such as within a Kubernetes environment	secure your keys, access management	https://www.vaultproject.io/ https://github.com/hashicorp/vault

Firewall

Tools	Risk mitigation	Description	Purpose	Links
UFW	GIR9	No direct SSH/RDP should be accessible from the internet.	protect servers	https://wiki.archlinux.org/title/Uncomplicated_Firewall
AWS Security Groups	GIR9	Control traffic to your AWS resources using security groups. Access should be enabled through an MFA-enabled VPN.	protect servers	https://docs.aws.amazon.com/vpc/latest/userguide/security-group-rules.html#security-group-rule-characteristics

IP-based DDoS Mitigation

Tools	Risk mitigation	Description	Purpose	Links
fail2ban	DOW10	Daemon to ban hosts that cause multiple authentication errors	DDoS protection	https://github.com/fail2ban/fail2ban
AWS Shield	DOW1 DOW3 DOW7 DOW10	All AWS customers benefit from the automatic protections of AWS Shield.	DDoS protection	https://aws.amazon.com/shield/
Setup Nodeexporter for Grafana	GIR4	Setup Grafana Alerts with thresholds for incoming and outgoing Traffic.	Regularly monitor network traffic for anomalies.	https://github.com/prometheus/node_exporter

Engine API Being Filtered + Auth for Engine API

Tools	Risk mitigation	Description	Purpose	Links
nginx, firewalls + your el/cl-configuration files	GIR9	Filter access to the Engine API or disable unnecessary API's in your Beacon/Execution-layer nodes configuration files.*	prevent api attacks	https://www.nginx.com/

* Note By default, account unlocking is forbidden when HTTP or Websocket access is enabled (i.e. by passing --http or ws flag). This is because an attacker that manages to access the node via the externally-exposed HTTP/WS port can then control the unlocked account. It is possible to force account unlock by including the --allow-insecure-unlock flag but this is unsafe and not recommended except for expert users that completely understand how it can be used safely. This is not a hypothetical risk: there are bots that continually scan for http-enabled Ethereum nodes to attack

VLAN Segmentation

Tools	Risk mitigation	Description	Purpose	Links
mikrotik	GIR10	Group related servers and services into VLANs. Subnet and connect your network and cloud networks.	Limit inter-VLAN routing to only necessary services with Site to Site IPsec (IKEv2) tunnel	https://mikrotik.com/download, https://help.mikrotik.com/docs/display/ROS/IPsec#IPsec-SitetoSiteGREtunneloverIPsec(IKEv2)usingDNS

OS Hardening

Tools	Risk mitigation	Description	Purpose	Links
SELinux	GIR13 GIR14 GIR17 KEC7	Use hardening playbooks that automate many of these processes and activate SELinux.	OS security	https://wiki.archlinux.org/title/Security, https://wiki.archlinux.org/title/SELinux

EDR, SIEM, NDR

Tools	Risk mitigation	Description	Purpose	Links
EDR	GIR14	EDR for endpoint-level visibility	secure endpoint	multiple provider
SIEM	GIR15	SIEM for comprehensive security event management and reporting.	security events and reporting	https://github.com/wazuh/wazuh
NDR	GIR10	NDR for network-level monitoring and response.	monitor network	multiple provider