Hardening the TCP/IP stack to SYN attacks Most people know how problematic protection against SYN denial of service attacks can be. Several methods, more or less effective, are usually used. In almost every case proper filtering of packets is a viable solution. In addition to creating packet filters, the modification of the TCP/IP stack of a given operating system can be performed by an administrator. This method, the tuning of the TCP/IP stack in various operating systems, will be described in depth in this article.
Middleware - Emerging Technologies and Its Controls Middleware technology is firmly entrenched in distributed computing horizon. It is enabler for enterprise application integration in todays state of business at the moment paradigm. While functional units across the enterprise may operate independently, middleware technology can be leveraged to provide integrated solution for better customer service and enhanced management information services.
Operating Systems Security Considerations Operating Systems can be viewed as a resource manager, responsible for fair resource sharing between different processes in the system. On the other hand, Operating systems control access to application memory and scheduling of the processor. Applications must be run like OS-Level services and the developer of these apps does not know the level of details needed to develop secure applications on their own, If the OS isn't doing these things securely, it generally compromise all security at higher levels, So The OS is a very logical place to enforce and support security. This paper presents the common built-in security criteria and mechanisms in OSs, it also introduces the common Vulnerabilities.
Implementing and Maintaining AIX Security Policies This paper is meant to serve as an introductory guide to the basic security and server hardening functions present in AIX. Many of the features and functions shown throughout this guide are applicable to AIX 4.3 and above, but are more directed toward AIX 5.2. Since security is and will always remain a major issue in server environments, it is crucial that system administrators have a strong working knowledge of security policy implementation and hardening features. This knowledge can be applied to new systems, or to bring older systems up to date.
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