James is a former IT executive in the banking industry and author of five technology books, including Hardening Linux, Pulling Strings with Puppet and Pro Linux System Administration James has been involved in IT Operations for nearly twenty years and is an advocate of open source technology.
He has previously worked as manager of the CERT at National Australia Bank, Executive Manager of IT Security at the Commonwealth Bank of Australia, the CIO of a medical research foundation doing Web-based clinical trials, managing the architecture group of an outsourcing company and in a number of IT roles in gaming, telecommunications and government.
He currently works at Puppet Labs as head of Operations. James manages operations, documentation, testing, support and release management for Puppet Labs.
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Contributions from James Turnbull
- Beta flaws vs. security flaws
- Trojans, viruses and targeted browsers
- IPSec in the 2.6 kernel
- Scanning vs. manual audits of software
- Choosing the most secure distribution
- Cryptographic file system support in the 2.6 kernel
- Open source security tools
- Additional kernel security features with RHEL
- Integrating Nagios with BMC Patrol
- What is PAM?
- Monitoring Web pages using Nagios
- Linux kernel and U.S. government security standards
- Mitigating kernel vulnerabilities
- Basic Object Configuration, chapter 2 from 'Pro Nagios
- Built-in mechanisms for securing the kernel
- Chrooting and user privileges with Fedora Core 1.0
- Resources for configuring Astaro on VPNs
- Low cost VPN with Smoothwall
- Restricting user access to home directories
- Limiting access to single user accounts