Download E-books Perl for System Administration (en anglais) PDF
By David N. Blank-Edelman
Some humans plan to develop into directors. the remainder of us are thrust into it: we're site owners, hobbyists, or simply the default "technical humans" on employees who're anticipated to maintain issues working. After a few stumbling round repeating an analogous steps time and again (and sometimes paying the associated fee after we disregard one), we become aware of that we needs to automate those initiatives, or undergo never-ending frustration. hence enters Perl.The Perl programming language is perfect for writing fast but strong scripts that automate many administrative projects. it is modular, it truly is robust, and it is ideal for handling platforms and companies on many platforms.Perl for procedure Administration is designed for all degrees of administrators--from hobbyists to card-carrying SAGE members--sysadmins on multi-platform websites. Written for a number of various systems (Unix, home windows NT, and Mac OS), it is a consultant to the wallet of management the place Perl should be most respected for websites huge and small, including:
- Filesystem management
- User management with a touch of XML
- DNS and different community identify services
- Database management utilizing DBI and ODBC
- Directory prone and frameworks like LDAP and ADSI
- Using e mail for procedure administration
- Working with log records of all kinds
Each bankruptcy concentrates on a unmarried administrative zone, discusses the prospective pitfalls, after which indicates how Perl involves the rescue. alongside the best way we stumble upon attention-grabbing Perl gains and tips, with many prolonged examples and whole courses. The scripts incorporated within the publication can easily be used as written or with minimum edition. yet it really is most likely that readers also will get a flavor of what Perl can do, and begin extending these scripts for initiatives that we've not dreamed of.Perl for procedure Adminstration does not try and train the Perl language, however it is a wonderful advent to the chronic and adaptability of Perl, and it whets the urge for food to benefit extra. it really is for an individual who must use Perl for approach management and wishes to hit the floor running.
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The setowner binary, a part of the NTSEC utilities bought by means of Pedestal software program at http://www. pedestalsoftware. com. I favor this binary since it is the main versatile whereas nonetheless requiring the smallest amount of overhead. • The Win32::Perms module written by means of Dave Roth, positioned at http://www. roth. net/perl/perms. here is a few pattern code that may switch the landlord of a listing and its contents together with subdirectories: use Win32::Perms; $acl = new Win32::Perms( ); $acl−>Owner($NewAccountName); $result = $acl−>SetRecurse($dir); $acl−>Close( ); three. 2. three. NT/2000 Passwords The algorithms used to imprecise the passwords that guard entry to a user's identification in NT/2000 and Unix are cryptologically incompatible. as soon as encrypted, you can't move the encrypted password info from one OS to the opposite and count on to exploit it for password alterations or account creations. accordingly, separate units of passwords must be used and/or saved in sync. This distinction is the bane of each process administrator who has to manage a combined Unix−NT/2000 surroundings. a few directors get round this by utilizing customized authentication modules, advertisement or in a different way. three. 2. three. NT/2000 Passwords ninety one The Five−Minute RCS instructional (Perl for approach management) As a Perl programmer, the single factor you are able to do while you are no longer utilizing customized authentication mechanisms is to create a procedure wherein the consumer presents her or his password in undeniable textual content. This simple textual content password then will get used to accomplish separate password−related operations (changes, and so forth. ), one for every OS. three. 2. four. NT teams thus far in our dialogue of person id for either working platforms, i have been in a position to gloss over any contrast among garage of a user's identification on a neighborhood laptop and garage in a few community carrier like NIS. For the knowledge we've got encountered, it hasn't quite mattered if that details was once used on a unmarried approach or all the platforms in a community or workgroup. to be able to speak cogently approximately NT/2000 person teams and their intersection with Perl, we regrettably need to holiday from this conference. we will focus totally on home windows NT four. zero teams. For home windows 2000, one other layer of trouble used to be extra, so information regarding home windows 2000 teams has been banished to the sidebar "Windows 2000 crew alterations" later during this bankruptcy. On NT structures, a user's id might be kept in a single of 2 areas: the SAM of a selected computer or the SAM of a website controller. this is often the excellence among an area consumer, who can in basic terms log right into a unmarried computing device, and a site consumer, who can log into any of the approved machines that perform that area. NT teams additionally are available in flavors, worldwide and native. the variation among those isn't accurately what the identify could lead you to anticipate. One is not only composed of area clients whereas the opposite of neighborhood clients. Nor, as individuals with Unix backgrounds may possibly anticipate, is one kind powerful on just one desktop whereas the opposite is in impression globally on a community.