GitHub Enterprise Server Implementation

An Indian public sector banking and financial services institution headquartered in Mumbai, operating globally across 15+ countries with over 5,000 branches in India.

Summary: Setting up the GitHub Enterprise Server with UAT and DC on KVM

Tech Stack: GitHub Enterprise server 3.15.1, Nutanix Cloud (QCOW2 VM on KVM), Git and GitHub Desktop, IBM QRadar.

Requirements	Solution	Results
Establish GitHub Enterprise Server (GHES) for Banking Client Provide two distinct GHES environments: UAT (staging) and Production (live). Enable secure access using PAM/PUM (ARCON). Integrate GitHub with CBS (Core Banking System) for file sync. Ensure compliance with security policies (SIEM, Vulnerability reports). Guarantee high availability and disaster recovery readiness. Configure Disaster Recovery (DR) and Backup environments for resilience. Provide training for developers and administrators to adopt GHES effectively.	Deployed GHES on Nutanix Cloud (QCOW2 VM, KVM hypervisor). UAT (staging server) – used for testing new GHES updates, patches, SSL/DNS configurations, and PAM/PUM access before rollout. Production server – live instance with DNS, certificates, and admin accounts for day-to-day usage. Configured hostname, DNS, and ports (122, 25, 443, 8443). Implemented SSL (self-signed + CSR). Integrated PAM/PUM (ARCON) for secure access flow. Installed GitHub Desktop & Git Bash on Windows servers for developers. Automated CBS integration and backups; repository creation handled via SOPs and manual setup. Configured DR server and backup using GitHub Backup Utils v3.16.0 with daily scheduling. Prepared SOP for repository creation & migration. Conducted training sessions for developers and administrators on GHES usage, access workflows, and governance. Integration with IBM QRadar SIEM for monitoring & vulnerability management.	Fully functional GHES setup with UAT, Production, DR, and Backup environments. UAT server ensured risk-free validation of GHES updates before production rollout. Secure user access flow enforced via PAM/PUM, preventing direct server access. Daily automated backups established for data protection and recovery assurance. CBS integration automated for smooth synchronization of modified files. Repository creation standardized through SOPs for governance and compliance. Developers and administrators trained on GHES operations, improving adoption and reducing support overhead. Improved governance, security, and resilience with planned IBM QRadar SIEM integration.