Network Security
Troubleshoot Expired Server Certificates (Strata Cloud Manager)
Table of Contents
Expand All
|
Collapse All
Network Security Docs
-
- Security Policy
-
- Security Profile Groups
- Security Profile: AI Security
- Security Profile: WildFire® Analysis
- Security Profile: Antivirus
- Security Profile: Vulnerability Protection
- Security Profile: Anti-Spyware
- Security Profile: DNS Security
- Security Profile: DoS Protection Profile
- Security Profile: File Blocking
- Security Profile: URL Filtering
- Security Profile: Data Filtering
- Security Profile: Zone Protection
-
- Policy Object: Address Groups
- Policy Object: Regions
- Policy Object: Traffic Objects
- Policy Object: Applications
- Policy Object: Application Groups
- Policy Object: Application Filter
- Policy Object: Services
- Policy Object: Auto-Tag Actions
- Policy Object: Devices
-
- Uses for External Dynamic Lists in Policy
- Formatting Guidelines for an External Dynamic List
- Built-in External Dynamic Lists
- Configure Your Environment to Access an External Dynamic List
- Configure your Environment to Access an External Dynamic List from the EDL Hosting Service
- Retrieve an External Dynamic List from the Web Server
- View External Dynamic List Entries
- Enforce Policy on an External Dynamic List
- Find External Dynamic Lists That Failed Authentication
- Disable Authentication for an External Dynamic List
- Policy Object: HIP Objects
- Policy Object: Schedules
- Policy Object: Quarantine Device Lists
- Policy Object: Dynamic User Groups
- Policy Object: Custom Objects
- Policy Object: Log Forwarding
- Policy Object: Authentication
- Policy Object: Decryption Profile
- Policy Object: Packet Broker Profile
-
-
-
- The Quantum Computing Threat
- How RFC 8784 Resists Quantum Computing Threats
- How RFC 9242 and RFC 9370 Resist Quantum Computing Threats
- Support for Post-Quantum Features
- Post-Quantum Migration Planning and Preparation
- Best Practices for Resisting Post-Quantum Attacks
- Learn More About Post-Quantum Security
-
-
-
- Investigate Reasons for Decryption Failure
- Identify Weak Protocols and Cipher Suites
- Troubleshoot Version Errors
- Troubleshoot Unsupported Cipher Suites
- Identify Untrusted CA Certificates
- Repair Incomplete Certificate Chains
- Troubleshoot Pinned Certificates
- Troubleshoot Expired Certificates
- Troubleshoot Revoked Certificates
Troubleshoot Expired Server Certificates (Strata Cloud Manager)
- Filter the decryption logs for expired certificates.
- Select Incidents and Alerts Log Viewer and select Firewall/Decryption.
- In the search field, enter the query Error Message = ‘Expired server certificate’.This query identifies servers that generate Expired server certificate errors. The NGFW blocks access to these servers because of the expired certificate.
- (Optional) Double-check the certificate expiration date at the Qualys SSL Labs site.Enter the hostname of the server (Server Name Identification column of the decryption log) in the Hostname field and Submit it to view certificate information for the host.
- Filter the decryption logs for certificates that will expire soon.
- Select Incidents and Alerts Log Viewer and select Firewall/Decryption.
- In the search field, enter a query that identifies upcoming certificate end dates: For example, suppose today’s date is December 1, 2024, and you want to give yourself two months to evaluate and prepare in case sites don’t update their certificates, query the decryption logs for certificates that expire February 1, 2025 or earlier (Time Not After <=‘2020-01-01’)).
The Certificate End Date column shows the exact date on which the certificate expires. - Determine the action to take for sites with expired certificates.
- If you don’t need to access the site for business purposes, the safest action is to continue to block access to the site.
- If you need to access the site for business purposes, take one of the following actions:
- Contact the administrator of the site with the expired certificate and notify them that they need to update or renew their certificate.
- Create a decryption policy rule that targets business-critical sites with expired certificates and a decryption profile that allows access to sites with expired certificates. Apply the rule exclusively to business-critical sites. As sites update their certificates, promptly remove them from the rule.