SSH, acronym for Secure Socket Shell, is the de facto standard among users and administrators wishing to establish secure communication between disparate networks. Pro OpenSSH, authored by two Fortune 100 system administrators, provides readers with a highly practical reference for configuring and deploying OpenSSH in their own environment. OpenSSH installation and configuration, key management, secure logging, client/server architectures, and digital certificates are just some of the topics covered in this book. Readers are also treated to complete deployment scenarios that come up almost daily in enterprise environments, large or small.

Autorentext
Michael Stahnke works as a Unix security administrator at a Fortune 100 company in the Midwest. He has headed implementation of Secure Shell for his corporate IT group and assisted with global production rollouts. Additionally, he has led several studies and projects to improve the security state of his large-scale UNIX/Linux environment. When not devoting his time to improving security at work, Michael spends time researching and applying new open-source technologies and practices. Michael has also done contract programming to create content management solutions utilizing PHP, Perl, MySQL and C++.

Klappentext

• Authored by two Fortune 100 system administrators responsible for the architecture and deployment of OpenSSH across several hundred corporate servers. * Covers commonplace yet often confusing deployment scenarios that come up daily in enterprise environments, large and small.

• Focuses upon the worlds most prevalent SSH implementation, OpenSSH.

Inhalt
Legacy Protocols: Why replace telnet, ftp, rsh, rcp, rlogin, etc with SSH?- Introducing SSH.- Order of precedence for settings: Whose settings are honored in what order?- Configuring the client: Exploring each configuration in detail.- Configuring the server: Ditto.- SSH Communications administrative console: Automating the manual.- PAM & Passwords.- Cryptographic Keys for hosts and users.- Unique Authentication options: digital Certificates & SecurID.- Tunneling legacy protocols into ssh.- Mixed environments: Open and Commercial SSH.- Securing SSH.- Efficient secure automation designs.- Client alternatives.- Scripting SSH.- Client configuration file switches, their meanings and the defaults table.- Server configuration file switches, their meanings, and the defaults table.