Websites & SSL
- Keep certificates valid: Use unexpired SSL certificates and renew them ahead of time. Osto can auto-generate and renew certificates for you, or you can upload your own.
- Use a low DNS TTL during changes: Set your DNS record’s TTL to 600 seconds or lower before making changes so updates propagate quickly with minimal downtime.
- Start in Detect, then move to Prevent: Run a new website in Detect Mode first to observe traffic without blocking, then switch to Prevent Mode once you’re confident legitimate traffic isn’t affected.
- Tune the Advanced policy: Review the protections in your Website Protection Advanced policy (URL Protection, Parameter Protection, Data Theft Protection, Cookie Security, and rate/request limits) so coverage matches your application.
Endpoint user policies
- Principle of least privilege: Put users in groups and grant the minimum access each role needs.
- Review regularly: Periodically revisit Device Control, App Control, Domain Filtering, and DLP policies so they stay aligned with current needs.
- Update as roles change: Revise policies when roles change or new apps are introduced to avoid stale or overly permissive rules.
Secure server access
- Allow Osto connectivity: Make sure server firewalls permit the connections Osto needs for seamless access.
- Enable MFA: Keep multi-factor authentication on for secure-server access.
- Review session logs: Check Logs → Secure Server Logs for unauthorized or anomalous access.
Threat protection
- Set realistic rate limits: Configure strict-but-realistic rate limiting on sites and APIs to blunt brute-force and volumetric attacks.
- Keep bot & DDoS mitigation on: Leave Bot Mitigation and DDoS Protection enabled and review them as attack patterns evolve.
- Watch for anomalies: Use the dashboard and Logs to monitor unusual activity and act before it escalates.
Scan and secure proactively
- Scan before you ship: Run the Web Scanner on your sites and the App Scanner on mobile builds, and connect a Git provider to SAST (Code Security) to catch vulnerabilities, dependency issues, and secrets early.
- Connect your cloud: Add your AWS, Azure, or GCP accounts under Cloud Security for continuous posture findings.
- Stay audit-ready: Use Compliance → AutoComply to generate policies, track controls, and assign security awareness training.
See the How-to Guides for step-by-step walkthroughs of each area referenced above.

