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  • How do I securely execute commands as root via a web control panel?

    - by Chris J
    I would like to build a very simple PHP based web based control panel to add and remove users to/from and add and remove sections to/from nginx config files on my linode vps (Ubuntu 8.04 LTS). What is the most secure way of executing commands as root based on input from a web based control panel? I am loathe to run PHP as root (even if behind an IP tables firewall) for the obvious reasons. Suggestions welcome. It must be possible as several commercial (and bloated, for my needs) control panels offer similar functionality. Thanks

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  • Sane(r) way to get character-encoding of CLI?

    - by danyowdee
    Hi all! I was writing a CLI-Tool for Mac OS X (10.5+) that has to deal with command-line arguments which are very likely to contain non-ASCII characters. For further processing, I convert these arguments using +[NSString stringWithCString:encoding:]. My problem is, that I couldn't find good information on how to determine the character-encoding used by the shell in which said cli-tool is running in. What I came up with as a solution is the following: NSDictionary *environment = [[NSProcessInfo processInfo] environment]; NSString *ianaName = [[environment objectForKey:@"LANG"] pathExtension]; NSStringEncoding encoding = CFStringConvertEncodingToNSStringEncoding( CFStringConvertIANACharSetNameToEncoding( (CFStringRef)ianaName ) ); NSString *someArgument = [NSString stringWithCString:argv[someIndex] encoding:encoding]; I find that a little crude, however -- which makes me think that I missed out something obvious...but what? Is there a saner/cleaner way of achieving essentially the same? Thanks in advance D

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  • overloading friend operator<< for template class

    - by starcorn
    Hello, I have read couple of the question regarding my problem on stackoverflow now, and none of it seems to solve my problem. Or I maybe have done it wrong... The overloaded << if I make it into an inline function. But how do I make it work in my case? warning: friend declaration std::ostream& operator<<(std::ostream&, const D<classT>&)' declares a non-template function warning: (if this is not what you intended, make sure the function template has already been declared and add <> after the function name here) -Wno-non-template-friend disables this warning /tmp/cc6VTWdv.o:uppgift4.cc:(.text+0x180): undefined reference to operator<<(std::basic_ostream<char, std::char_traits<char> >&, D<int> const&)' collect2: ld returned 1 exit status template <class T> T my_max(T a, T b) { if(a > b) return a; else return b; } template <class classT> class D { public: D(classT in) : d(in) {}; bool operator>(const D& rhs) const; classT operator=(const D<classT>& rhs); friend ostream& operator<< (ostream & os, const D<classT>& rhs); private: classT d; }; int main() { int i1 = 1; int i2 = 2; D<int> d1(i1); D<int> d2(i2); cout << my_max(d1,d2) << endl; return 0; } template <class classT> ostream& operator<<(ostream &os, const D<classT>& rhs) { os << rhs.d; return os; }

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  • How can I model the data in a multi-language data editor in WPF with MVVM?

    - by Patrick Szalapski
    Are there any good practices to follow when designing a model/ViewModel to represent data in an app that will view/edit that data in multiple languages? Our top-level class--let's call it Course--contains several collection properties, say Books and TopicsCovered, which each might have a collection property among its data. For example, the data needs to represent course1.Books.First().Title in different languages, and course1.TopicsCovered.First().Name in different languages. We want a app that can edit any of the data for one given course in any of the available languages--as well as edit non-language-specific data, perhaps the Author of a Book (i.e. course1.Books.First().Author). We are having trouble figuring out how best to set up the model to enable binding in the XAML view. For example, do we replace (in the single-language model) each String with a collection of LanguageSpecificString instances? So to get the author in the current language: course1.Books.First().Author.Where(Function(a) a.Language = CurrentLanguage).SingleOrDefault If we do that, we cannot easily bind to any value in one given language, only to the collection of language values such as in an ItemsControl. <TextBox Text={Binding Author.???} /> <!-- no way to bind to the current language author --> Do we replace the top-level Course class with a collection of language-specific Courses? So to get the author in the current language: course1.GetLanguage(CurrentLanguage).Books.First.Author If we do that, we can only easily work with one language at a time; we might want a view to show one language and let the user edit the other. <TextBox Text={Binding Author} /> <!-- good --> <TextBlock Text={Binding ??? } /> <!-- no way to bind to the other language author --> Also, that has the disadvantage of not representing language-neutral data as such; every property (such as Author) would seem to be in multiple languages. Even non-string properties would be in multiple languages. Is there an option in between those two? Is there another way that we aren't thinking of? I realize this is somewhat vague, but it would seem to be a somewhat common problem to design for. Note: This is not a question about providing a multilingual UI, but rather about actually editing multi-language data in a flexible way.

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  • sound volume increase beyond 100% whenever possible on linux

    - by fakedrake
    Some audio output from files or streams is too low. It is obvious that hardware is able to play the same sounds but louder but because of the data it just plays it at some low level even at 100% volume. Vlc can generally increase the volume of a file up to 200%. Is there a way to do the same thing VLC does system-wide and if possible for an arbitrary v percentage value. If there is no application that does this, where should i look into for libs to do it myself or what code should i modify(eg code in the alsamixer) thank you Note: Asked the same thing on stackoverflow and they directed me here.

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  • virtualbox ose windows binaries

    - by Eye of Hell
    Hello Sun's virtualbox windows binaries are under 'non-commercial' license so can't be used in any company. But source code is GPL. Is it any resource on the network that has a virtualbox compiled binaries for windows? Added a bounty to see if I can get a little more feedback.

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  • getting Ceil() of Decimal in python?

    - by Gunjan
    Is there a way to get the ceil of a high precision Decimal in python? >>> import decimal; >>> decimal.Decimal(800000000000000000001)/100000000000000000000 Decimal('8.00000000000000000001') >>> math.ceil(decimal.Decimal(800000000000000000001)/100000000000000000000) 8.0 math rounds the value and returns non precise value

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  • how to know who is accessing my system? [closed]

    - by calvin
    Is it possible to know if anyone is accessing any of folders or drives in my system(32 bit windows 2003)? I mean shared folders or non-shared folders, anything. And once if we know, how to deny access to particular host. For shared folders i know how to do, but if anyone is accessing some folder with proper credentials, i don't know how to control.

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  • Simple java regular expression replace question.

    - by Yang
    I have a simple xml file and I want to remove everything before the first tag. ..... item1 .... The following java code is not working: String cleanxml = rawxml.replace("^[\\s\\S]+<item>", ""); What is the correct way to do this? And how do I address the non-greedy issue? Sorry I'm a C# programmer.

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  • knife server create- finding lists of flavors

    - by JohnMetta
    I'm new to Chef and I think I'm missing something in reading the docs. I want to create servers using knife server create (options) but can't seem to find fully complete documentation on the options. Specifically, how do I find a mapping of server flavors to whatever knife is looking for? Given the official wiki entry for "Launch Cloud Instances with Knife," the following is an example server creation on Rackspace: knife rackspace server create 'role[webserver]' --server-name server01 --image 49 --flavor 2 Likewise, on the Knife Man Page, there are commands for EC2 server images (using --d --distro DISTRO) and for Slicehost servers (using -f --flavor FLAVOR) However, what none of the documentation I've found describes is how to translate what I want to build on Rackspace ("I want Ubuntu 10.04 LTS") to what the integer entry that knife is seeking. It strikes me that, given the lack of a description in the documentation for how to find the flavor, this should be obvious. Thus, I think I'm missing something.

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  • How do i replace a key up keyCode with another in jQuery?

    - by Brian Scott
    I currently have a table which only has a single editable column. I have a jQCuery change() event associated with the column's input controls to prevent any non numeric keys being pressed, other than tab / delete / backspace. I would like to replace the Enter key with a Tab press. Can someone please show me the relevant statement to replace the keyCode based on the Enter character being intercepted?

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  • How hard programming is? Really. [closed]

    - by Bubba88
    Hi! The question is about your perception of programming activity. How hard/exacting this task is? There is much buzz about programming nowadays, people say that programmers are smart, very technical and abstract at a time, know much about world, psychology etc.. They say, that programmers got really powerful brain thing, cause there is much to keep in consideration simultaneously again with much information folded into each other associatively (up 10 levels of folding they say))) Still, there are some terms to specify at our own.. So that is the question: What do you think about programming in general? Is it hard? Is it 'for everyone' or for the particular kind of people only? How much non-CS background do you need to program (just to program, really; enterprise applications for example)? How long is the learning curve? (again, for programming in general) And another bunch of random questions: - If you were not to like/love programming, would that be a serious trouble bothering your current employment? - If you were to start from the beginning, would you chose that direction this time? - What other areas (jobs or maybe hobbies) are comparable to programming in the way they can explode someone's lovely brain? - Is 'non turing-complete programming' (SQL, XML, etc.) comparable to what we do or is it really way easier, less requiring, cheap and akin to cooking :)? Well, the essence is: How would you describe programming activity WRT to its difficulty? Or, on the other hand: Did you ever catch yourself thinking at some point: OMG, it's sooo hard! I don't know how would I ever program, even carried away this way and doing programming just for fun? It's very interesting to know your opinion, your'e the programmers after all. I mean much people must be exaggerating/speculating about the thing they do not really know about. But that musn't be the case here on SO :) P.S.: I'll try my best to update this post later, and you please edit it too. At least I'll get decent English in my question text :)

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  • In Java What is the guaranteed way to get a FileLock from FileChannel while accessing a RandomAcces

    - by narasimha.bhat
    I am trying to use FileLock lock(long position, long size,boolean shared) in FileChannel object As per the javadoc it can throw OverlappingFileLockException. When I create a test program with 2 threads lock method seems to be waiting to acquire the lock (both exclusive and non exclusive) But when the number threads increases in the acutal scenario over lapping file lock exception is thrown and processing slows down due the block at File lock table. What is the best way to acquire lock avoiding the OverlappingFileLockException ?

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  • Recommendations for Spam Filter

    - by dotdev
    We are currently using MxGuardDog for spam filtering. It works by pointing our MX records at their mail servers. The service seems pretty good, it keeps out the obvious spam, but I would still say it let's through mail that to me is spam, but I accept that on the surface those emails may not flag any of the universally recognised indicators for spam. If an email comes through that I believe is spam, I can login to the Web Console and blacklist the email/domain. However, 99% of the time I don't because it's inconvenient - or, should i say, it's far less convenient than a button in Outlook that allows me to report the email/domain as spam. So, what we're looking for is a similar service i.e. cloud spam filtering that has an Outlook plugin so that Administrators/Users can report spam. We are only a small company, 10 users, so cost is of course an issue for us. Many thanks dotdev

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  • Port iPhone application to Android

    - by wgpubs
    What is the most efficient way to port an iPhone app to Android? I know Apple doesn't like 3rd-party, non-Objective C platforms generating code for their platform ... but is there something out there that can take an iPhone app and convert it to Android friendly code? If not, how have folks out there been creating Android versions of their existing iPhone apps? Thanks

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  • What about optional generic type parameters in C# 5.0?

    - by Lars Corneliussen
    Just a thought. Wouldn't it be useful to have optional type parameters in C#? This would make life simpler. I'm tired of having multiple classes with the same name, but different type parameters. Also VS doesn't support this very vell (file names) :-) This would eliminate the need for a non-generic IEnumerable: interface IEnumerable<out T=object>{ IEnumerator<T> GetEnumerator() } What do you think?

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  • Batch equivilant of Bash backticks

    - by MiffTheFox
    When working with Bash, I can put the output of one command into another command like so: my_command `echo Test` would be the same thing as my_command Test (Obviously, this is just a non-practical example.) I'm just wondering if you can do the same thing in Batch.

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  • Do SSD hybrid drives perform better than HDD + ReadyBoost flash?

    - by Chris W. Rea
    Seagate has released a product called the Momentus XT Solid State Hybrid Drive. This looks exactly like what Windows ReadyBoost attempts to do with software at the OS level: Pairing the benefits of a large hard drive together with the performance of solid-state flash memory. Does the Momentus XT out-perform a similar ad-hoc pairing of a decent hard drive with similar flash memory storage under Windows ReadyBoost? Other than the obvious "a hardware implementation ought to be faster than a software implementation", why would ReadyBoost not be able to perform as well as such a hybrid device?

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  • Oracle RAC interconnect in a Dell M1000e Blade Enclosure

    - by Antitribu
    We are looking at a Dell M1000e enclosure and appropriate Blades with 4 NICs each. We are planning on running Linux/Oracle 11g RAC on two blades, storage will be handled on an iSCSI SAN for which two NICs (via passthrough) will be connected leaving us with two NICs (via blade centre switches). We would like to have an interconnect (obviously) , an external IP and an internal IP. Would best practice be to: bond the remaining two interfaces and VLAN as appropriate to provide three virtual interfaces? run the interconnect on one interface and VLAN the external/internal interfaces? purchase a blade with more NICs as the above is a terrible idea? Another option? Please feel free to point out the blindingly obvious or to relevant documentation on support.oracle. I am specifically interested in supported configurations and best practices. Thanks!

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  • Is it a good idea to mock/stub in integration tests?

    - by ez
    Say there are multiple requests in a integration test, some of them are sphinx calls(locator for example). Should we just stub out the entire response of these sphinx call, or, since it is a integration test, we want to excise the entire test without stubbing. If that is the case, how do we still keep test independent in the situation when sphinx fails, no internet connection, or third party server non-responsive. Give reasons. Thanks

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  • PECL on Mac OS X 10.6

    - by Rowan
    I'm having trouble finding PECL on a Mac OS X 10.6 machine. I'm using the default install of Apache and PHP for development and have installed MongoDB, however I can't work with Mongo/PHP without the mongo PECL extension. Is there a copy of PECL on a Mac or will I have to install it? If so, where is it? If not, do you know of a good tutorial for getting it up-and-running? I've tried the obvious stuff: sudo find / -name "pecl" -print returns nothing Thanks very much

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  • Google Search w/ Chrome Incognito w/ Gnome Do

    - by jrc03c
    I've installed Google Chrome as my default browser in Ubuntu, and recently installed Gnome Do and enabled the Google Search plugin. The Google Search from Gnome Do works exactly as expected but for one thing: Chrome (which is typically set to open in "incognito" mode) does not open in "incognito" mode. The shortcuts on my desktop, taskbar, and menus all have the --incognito flag attached (which works just fine), but the browser refuses to open in this mode when launched from Gnome Do. Any suggestions? Also, please note the settings for the Google Search plugin in Gnome Do: It's obvious that Gnome Do just passes the Google Search blindly to the default browser. In other words, there are no configurable settings specifically for Chrome. Any thoughts?

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