PUBLIC MARKS with tags server & architecture

Puppet, Chef, cfengine, and Bcfg2 are all players in the configuration management space. If you’re looking for Linux automation solutions, or server configuration management tools, the two technologies you’re most likely to come across are Puppet and Opscode Chef. They are broadly similar in architecture and solve the same kinds of problems. Puppet, from Reductive Labs, has been around longer, and has a large user base. Chef, from Opscode, has learned some of the lessons from Puppet’s development, and has a high-profile client: EngineYard.

This document describes reverse proxies, and how they are used to improve Web server performance. Section 1 gives an introduction to reverse proxies, describing what they are and what they are used for. Section 2 compares reverse proxy caches with standard and transparent proxy caches, explaining the different functionality each provides. Section 3 illustrates how the reverse proxy actually caches the content and delivers it to the client. Section 4 describes how to configure Squid as a reverse proxy cache.

As stated previously, an LDAP proxy server accesses services (in our case, LDAP services) on behalf of a client's request. This architecture is used frequently if the user is behind a firewall and wishes to access resources outside, normally on the Internet. More generally, the LDAP proxy provides a way of giving controlled access via the LDAP protocol to resources outside the actual domain; therefore, you may use it to join different domains in your intranet (e.g., different LANs located in different countries of your enterprise intranet).

This following sections describe alternative architectures for a WebLogic Server cluster: * Architectural and Cluster Terminology * Recommended Basic Architecture * Recommended Multi-Tier Architecture * Recommended Proxy Architectures * Security Options for Cluster Architectures

The key to the speed and reliability of Google search is cutting up data into chunks, its top engineer said. Urs Hoelzle, Google vice president of operations and vice president of engineering, offered a rare behind-the-scenes tour of Google's architecture