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Improving the Security of a Default Install of Mac OS X (v10.1) While bringing the power of Unix and the usability of Mac OS into a single operating system allows users and administrators to explore new levels of functionality and stability, Mac OS X also brings the potential of Unix-like operating systems’ darker side in regards to security. Apple has done a good job in giving administrators a reasonably secure base from which to start, but more can be done. The onus is on administrators to take these further steps. While some procedures are typical of any Unix-like operating system, others are peculiar to Mac OS X. This paper will take administrators through the processes, both common and unique, of providing a more secure installation of Mac OS X.
04/15/2004
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Securing FreeBSD under Macintosh OSX As the twenty year old Mac OS is slowly phased out in favour of the new, FreeBSD Unix-based OSX, the security picture for networked Macintosh hosts and servers changes dramatically. This instructional paper introduces a broad range of applicable security measures that can be taken to provide a basic level of resistance to intruders, malicious code and damage or compromise to ones PC and/or its electronic contents when using Macintosh OSX. The original, single-user Mac operating system was extremely secure out of the box. Essentially this is true of all incarnations of the OS since its original inception up to and, for the most part, including OS 9.x. Why?
04/15/2004
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Mac OS X 10.0 Security Essentials On March 24th, 2001, Apple shipped the first release of its next generation operating system called Mac OS X (Apple 7, p. 1). Version 10.0 was preceded by a Public Beta release on September 13, 2000 (Apple 4, p.1). A discussion of the lineage of the operating system and a preliminary analysis of the security implications of the Public Beta has already been conducted (Crow, p.1). This report constitutes an evaluation of the out-of-the-box security of the shipping version of Mac OS X. The security features and vulnerabilities evaluated in this report form the foundation for most security aspects of the operating system and therefore should be considered essentials for anyone involved in maintaining a Mac OS X system. As of this writing, the current version of Mac OS X is 10.0.4 Build 4Q12 for most systems. This report will evaluate this particular version and build with the Web Sharing Update 1.0 installed (Apple 10, p.1).
04/15/2004
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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.
03/22/2004
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Novell Small Business Suite Security Recommendations The Novell Small Business Suite is a powerful tool for a small business, at a low price. Because small businesses have limited budgets, they have limited capability to install, configure, patch and maintain their servers. Because of the technical complexity of such products, it can be easy for security holes to be found and taken advantage of without a small business being aware. Novell has a reputation for strong security. But, since converting their product to become TCP/IP based, it has many potential security risks not yet recognized.
02/17/2004
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Securing a Unix Server Particular examples of the specific commands and configuration options are
02/16/2004
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