All Administration Titles
Pro Open Source Mail
Pro Open Source Mail: Building an Enterprise Mail Solution presents a comprehensive guide to managing the most important services, including user administration, mail transfer agents, virus protection, spam and mail filtering, Web-based mail, and mailing list maintenance.
SSH, or Secure Shell, is the de facto standard among users and administrators who wish to establish secure communication between disparate networks. This book is authored by a Fortune 100 system administrator, who will provide you with a highly practical reference for configuring and deploying OpenSSH in your own environment.