Writing
Practical notes on architecture, implementation and troubleshooting — documented so the next person finds the answer faster.
By technology
5 posts
High-speed file transfer covering HSTS, Faspex, Shares, deployment and troubleshooting.
1 post
IBM App Connect Enterprise architecture, configuration, integration and troubleshooting.
1 post
IBM API Connect administration, security, lifecycle management and troubleshooting.
3 posts
HashiCorp Vault architecture, HA/DR, authentication, secrets management and PKI.
All articles
What regular standby and performance standby nodes actually do in a Vault HA cluster, how requests flow, what runs locally, how load balancers should treat them, and where read scaling really comes from.
A field-tested walkthrough for installing and configuring IBM Aspera High-Speed Transfer Server 4.4.8 on RHEL or Rocky Linux, including licensing, SSH, FASP ports, transfer users, Node API and first-transfer validation.
A practical architecture guide for running IBM Aspera HSTS in active/active mode behind an external load balancer, including FASP session affinity, shared storage, configuration sync, Redis, health checks and failover testing.
A practical step-by-step guide to exposing IBM Aspera Shares and Faspex 5 through one secure Nginx endpoint using path-based routing.
A crisp guide to IBM Aspera on Cloud — how it works, what each edition includes, how tethered HSTS nodes fit, and the transfer, egress and storage charges that matter.
Step-by-step guide to placing IBM Aspera Proxy in front of multiple HSTS nodes, load-balancing FASP transfers, publishing Node API through HTTPS, and integrating Aspera Shares through a single endpoint.
A practical troubleshooting guide for IBM App Connect Enterprise node-wide HTTP listener 404 errors caused by MQ availability, stale or duplicate SYSTEM.BROKER.WS.ACK registrations, listener conflicts and deployment-state inconsistencies.
A practical VMware guide to configure scheduled and on-demand IBM API Connect Management and Developer Portal backups to Amazon S3 using apicup, with validation, restore guidance and production notes.
When a Vault primary and its DR secondary sit on opposite sides of NAT, cluster address advertisement can quietly break reconnection. How the mechanism works and how to design around it.
A practical guide to placing HashiCorp Vault behind a load balancer: Layer 4 TLS passthrough, health checks, standby request forwarding, performance standbys, ports, certificates and failure testing.