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Comwave and Rogers · 2021 to 2026
Voice certificate programme
An expired certificate stops phones and clients. I ran the certificate work across the voice platform for five years, then moved it to multi-domain certificates.
Time loggedAbout 231 hours
Changes36 worked, 20 authored
Programme54 certificate changes, 2021 to 2026
Final stageMulti-domain, 150 hours
Wildcard renewals
Renewed wildcard certificates across the web, device, messaging and load-balancer tiers each year, tier by tier, from the first 4 changes in 2021.
Moving to multi-domain certificates
From June 2025 to January 2026 (150 hours) I led the move from wildcard to multi-domain certificates.
- Tested self-signed and signed certificates in pre-production.
- Moved certificates from the load balancers to the back end.
- Moved the web, device and client services, including the web application firewall.
- Replaced the test certificates with signed ones in production.
When a certificate does expire
Restored DRM after a certificate expiry, and handled the follow-up process and troubleshooting.
Stack
TLSX.509Cisco BroadWorksLoad balancersWAFLinux