11/28/2023 0 Comments Bastion linuxWhen one considers the free licensing, the free software, and the free access to solutions online, system administrators may find that top decision makers within their respective organizations do not care so much about the pragmatism involved with such a move as they care about the bottom line. With budget restrictions, staffing reductions and increasing demands for functionality, it may be a safe assumption that a move toward an open source solution such as Linux could be rapidly approaching. So, for those who are ready to dive into the realm of OpenLDAP, they need only download the open-source software, and begin the install. Furthermore, most current Linux distributions offer their own version of an LDAP client, which should allow for a smoother implementation in the enterprise. However, the premise here is freedom, and a natural extension of that is affordability.įortunately for the enterprising system administrator, LDAP is not a proprietary standard, so the naming conventions from platform to platform will remain roughly the same. Windows servers typically intertwine Active Directory with LDAP, and as far as Windows products are concerned, the level of granularity and restrictive access to users is fairly robust. LDAP works rather similarly to the way DNS works, and the level of complexity is roughly the same. Basically, when a client needs to locate information on an LDAP server, certain naming conventions are practiced that allow for the location of certain information within certain folders on a server. The question is, is the network secure? An Open Mind Regarding OpenLDAPĪccording to RFC 1960, the Lightweight Directory Access Protocol (LDAP) defines a network representation of a search filter transmitted to an LDAP server. The possible combinations are almost too numerous to count, while the level of understanding needed to assign permissions is no more than what's required to play "Angry Birds" on an iPhone.Ĭonversely, if a system administrator can understand the many intricacies of Windows permissions categories such as full control, modify, list folder contents, etc., and if she can fully grasp the many nuances of the group policy object, then it may be possible to accurately say that she’s smarter than everyone else. To a system administrator with any semblance of Linux experience, this should seem like a simple review of the fundamentals, but therein lies the genius of Linux permissions – their simplicity! Does the system administrator want Group A to run certain executables as opposed to reading and writing them? Or maybe the administrator would like User B to simply read the contents of certain files. (To learn more check out this Linux tutorial on understanding file permissions.) When assigning permissions to actual files, administrators can categorize a user’s options as read, write or execute. When assigning permissions to groups or individuals, system administrators may choose between owner, group and all users. Linux tends to place more isolation between its shared libraries, as well as more separation between application-level processes and background processes. In a Windows environment, a differentiation may be made between administrators and everyone else, but non-administrators are often able to create and/or manipulate the infamous dynamic-link libraries. One of the reasons Linux is so appealing in an enterprise environment (aside from its cost) is the obsessive way that each Linux distribution implements permissions. Just sign on as root and let Ker rip, right? Well, this may be satisfactory at home, where there are very few nodes to keep track of, but what about in an enterprise environment? While working on a network at home, one may or may not give any thought to file, group, or individual permissions. Fedora is currently the open-source version of the Red Hat Linux distribution. Whereas Mint and Ubuntu are Debian-based in terms of package management and repositories, Fedora is Red Hat Package Manager-based, and it fits rather nicely into a Red Hat enterprise environment. Rounding out the top three is the Fedora distribution. In terms of intuitiveness, aesthetically pleasing graphics and overall functionality, Ubuntu is perhaps the most robust of all of the Linux distributions. Mint, along with several other Linux distributions, are rooted heavily in Ubuntu, which makes Ubuntu and Ubuntu-based operating systems far and away the most common of all of the Linux distributions. But to say that Ubuntu is No.2 on the popularity list is really a misnomer.
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