WildFly hardening requires strict management interface control, Elytron-based auth/TLS, and safe subsystem exposure.
- Bind management interface to private IP only.
- Disable remote management unless required.
- Require strong management users and rotate credentials.
- Restrict management ports via firewall.
¶ 2) Use Elytron for auth and TLS
- Configure Elytron security domains and HTTPS listeners.
- Use mutual TLS for sensitive admin/API use cases.
- Protect keystore/truststore files and permissions.
- Disable legacy/unused security realms.
- Disable unused subsystems (messaging, remoting, etc.) if not needed.
- Deploy with non-root account and strict file permissions.
- Keep WildFly + JDK updated on each release cycle.
- Centralize logs and alert on auth and deployment failures.
¶ Verification commands
/opt/wildfly/bin/jboss-cli.sh --connect --commands=':read-attribute(name=product-version)'
grep -R "management-interface\|elytron\|ssl-context" /opt/wildfly/standalone/configuration
sudo ss -tulpn | grep -E ':8080|:8443|:9990'
- WildFly security guide (Elytron): https://docs.wildfly.org/39/WildFly_Elytron_Security.html
- WildFly security docs index: https://docs.wildfly.org/
- WildFly releases: https://github.com/wildfly/wildfly/releases