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
- Resources for configuring Astaro on VPNs
- Restricting user access to home directories
- Limiting access to single user accounts
- Scanning and virus protection on Red Hat
- Keeping your Apache server safe
- Security audits for Linux
- Creating your own CA for SSL encryption
- CAN vs. CVE numbers
- Sources of free code for intrusion detection systems
- Best server fits and configuration for firewalls
- Taking the initiative with open source security strategies and policies
- Important security issues in open source
- The pros and cons of IPsec
- Achieving B1 Orange book levels with Linux
- Linux firewall filtration by application
- Linux vs. Microsoft: Blocking unwanted e-mail advances
- Linux security features: Advantages of Security Enhanced Linux and IPsec
- 2.6 security tools and commands: Making them work
- What security tools are added to the kernel by distro manufacturers?
- Securing your perimeter against former employees