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  • How can I solve the apache2 httpd error "mixing * ports and non-* ports with a NameVirtualHost addre

    - by rrc7cz
    Here is the error I get when booting up Apache2: * Starting web server apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [Wed Oct 21 16:37:26 2009] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results [Wed Oct 21 16:37:26 2009] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results [Wed Oct 21 16:37:26 2009] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results [Wed Oct 21 16:37:26 2009] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results [Wed Oct 21 16:37:26 2009] [warn] NameVirtualHost *:80 has no VirtualHosts I first followed this guide on setting up Apache to host multiple sites: http://www.debian-administration.org/articles/412 I then found a similar question on ServerFault and tried applying the solution, but it didn't help. Here is an example of my final VirtualHost config: <VirtualHost *:80> ServerAdmin [email protected] ServerName www.xxx.com ServerAlias xxx.com # Indexes + Directory Root. DirectoryIndex index.html DocumentRoot /var/www/www.xxx.com # Logfiles ErrorLog /var/www/www.xxx.com/logs/error.log CustomLog /var/www/www.xxx.com/logs/access.log combined </VirtualHost> with the domain X'd out to protect the innocent :-) Also, I have the conf.d/virtual.conf file mentioned in the guide looking like this: NameVirtualHost * The odd thing is that everything appears to work fine for two of the three sites.

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  • Faut-il faire des études supérieures pour être un bon développeur ? Non, d'après les fondateurs de 37signals

    Faut-il faire des études supérieures pour être un bon développeur ? Non d'après les fondateurs de 37signals « Oubliez la formation conventionnelle », peut-on lire en grand titre sur le best-seller « Rework », écrit par Jason Fried et David H. Hanson. Dans ce chapitre d'un livre atypique qui inspire depuis sa sortie de nombreux entrepreneurs et start-ups, les deux fondateurs de 37signals se moquent ouvertement les recruteurs qui exigent aux prétendants à leurs postes des diplômes uni...

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  • Have you ever used a non mainstream language in a project? Why?

    - by EpsilonVector
    I was thinking about my academic experience with Smalltalk (well, Squeak) a while ago and whether I would like to use it for something, and it got me thinking: sure, it's as good and capable as any popular language, and it has some nice ideas, but there are certain languages that are already well entrenched in certain niches of programming (C is for systems programming, Java is for portability, and so on...), and Smalltalk and co. don't seem to have any obvious differentiating features to make them the right choice under certain circumstances, or at least not as far as I can tell, and when you add to it the fact that it's harder to find programmers who know it it adds all sorts of other problems for the organization itself. So if you ever worked on a project where a non-mainstream language (like Smalltalk) was used over a more mainstream one, what was the reason for it? To clarify: I'd like to focus this on imperative languages, since other paradigms like functional and logic programming language, while not necessarily mainstream, can still be good choices for certain projects for obvious reasons.

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  • How do you explain refactoring to a non-technical person?

    - by Benjol
    (This question was inspired by the most-voted answer here) How do you go about explaining refactoring (and technical debt) to a non-technical person (typically a PHB or customer)? ("What, it's going to cost me a month of your work with no visible difference?!") UPDATE Thanks for all the answers so far, I think this list will provide several useful analogies to which we can point the appropriate people (though editing out references to PHBs may be wise!)

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  • Are non Turing-complete languages considered programming languages at all?

    - by user1598390
    Reading a recent question: Is it actually possible to have a 'useful' programming language that isn't Turing complete?, I've come to wonder if non Turing-complete programming languages are considered programming languages at all. Since Turing-completeness means a language has to have variables to store values as well as control structures ( for, while )... Is a language that lacks these features considered a programming language ?

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  • What non-programming books should a programmer read to help develop programming/thinking skills?

    - by FeatureCreep
    There are a lot of questions about what programming books should be on the programmer's bookshelf. How about non-programming related books that can help you become a better programmer or developer? It would also be interesting to know why they would help. My first choice would be Sun Tzu's "Art of War" (however cliché), because it made it obvious that the success of any project depends on the strength of its weakest link (and warfare is a big project).

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  • How do you explain refactoring to a non-technical person?

    - by Benjol
    (This question was inspired by the most-voted answer here) How do you go about explaining refactoring (and technical debt) to a non-technical person (typically a PHB or customer)? ("What, it's going to cost me a month of your work with no visible difference?!") UPDATE Thanks for all the answers so far, I think this list will provide several useful analogies to which we can point the appropriate people (though editing out references to PHBs may be wise!)

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  • What non-programming books should a programmer read (that helps developing programming skills/thinking)?

    - by FeatureCreep
    There are a lot of questions about what programming books should be on the programmer's bookshelf. How about non-programming related books that can help you become a better programmer or developer? It would also be interesting to know why they would help. My first choice would be Sun Tzu's "Art of War" (however cliché), because it made it obvious that the success of any project depends on the strength of its weakest link (and warfare is a big project).

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  • How to fix: "NPMethod called on non-NPObject wrapped JSObject" error?

    - by chandra
    HI, I am trying to call a method defined in flash object from javascript (firefox-3.0/Linux) and getting the exception: "NPMethod called on non- NPObject wrapped JSObject". If I use eval on window.document.flash_object.func() it throws "NPMethod called on non-NPObject wrapped JSObject". Where as, if I define a javascript function in side the page as given below: function myFunc() { return flash_object.func(); } and later do a eval of window.document.myFunc() it works fine. I am running the two evals through a test framework called Selenium. [eval(window.document.flash_object.func()) and eval(window.document.myFunc())]. The issues seems to be issue with invoking the flash-object method without passing 'this' reference. Here is sample html/js code to reproduce this issue: "NPMethod called on non-NPObject wrapped JSObject". <script> function changeColor() { mymovie.changeColor(); } function getColorNP() { var func = mymovie.getColor; func(); } </script> <button type="button" onclick="getColorNP();">getColorNP</button> <button type="button" onclick="getColor();">getColor</button> getColorNP throws the exception Error: NPMethod called on non-NPObject wrapped JSObject! Source File: http://my.host/Colors/colors.html getColorNP throws the exception Error: NPMethod called on non-NPObject wrapped JSObject! Source File: http://my.host/Colors/colors.html Now, question to javascript gurus: Given flash object and a method name, how do I invoke the method on that object. Lets say, a function takes two arguments: a flash object, and a method name as string. I want to do an eval on object.method() inside that function. Is this possible, if so, can you please explain me how this can be done. As flash object's method is not a standard javascript function, i think its not possible to function binding through bind(). Is there any other alternative? Thx, Chandra

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  • How do I use a dependency on a Perl module installed in a non-standard location?

    - by Kinopiko
    I need to install two Perl modules on a web host. Let's call them A::B and X::Y. X::Y depends on A::B (needs A::B to run). Both of them use Module::Install. I have successfully installed A::B into a non-system location using perl Makefile.PL PREFIX=/non/system/location make; make test; make install Now I want to install X::Y, so I try the same thing perl Makefile.PL PREFIX=/non/system/location The output is $ perl Makefile.PL PREFIX=/non/system/location/ Cannot determine perl version info from lib/X/Y.pm *** Module::AutoInstall version 1.03 *** Checking for Perl dependencies... [Core Features] - Test::More ...loaded. (0.94) - ExtUtils::MakeMaker ...loaded. (6.54 >= 6.11) - File::ShareDir ...loaded. (1.00) - A::B ...missing. ==> Auto-install the 1 mandatory module(s) from CPAN? [y] It can't seem to find A::B in the system, although it is installed, and when it tries to auto-install the module from CPAN, it tries to write it into the system directory (ignoring PREFIX). I have tried using variables like PERL_LIB and LIB on the command line, after PREFIX=..., but nothing I have done seems to work. I can do make and make install successfully, but I can't do make test because of this problem. Any suggestions? I found some advice at http://servers.digitaldaze.com/extensions/perl/modules.html to use an environment variable PERL5LIB, but this also doesn't seem to work: export PERL5LIB=/non/system/location/lib/perl5/ didn't solve the problem.

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  • Is there an use case for non-blocking receive when I have threads?

    - by Gabriel Šcerbák
    I know non-blocking receive is not used as much in message passing, but still some intuition tells me, it is needed. Take for example GUI event driven applications, you need some way to wait for a message in a non-blocking way, so your program can execute some computations. One of the ways to solve this is to have a special thread with message queue. Is there some use case, where you would really need non-blocking receive even if you have threads?

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  • Why would I want to have a non-standard attribute?

    - by dontWatchMyProfile
    The documentation on Core Data entities says: You might implement a custom class, for example, to provide custom accessor or validation methods, to use non-standard attributes, to specify dependent keys, to calculate derived values, or to implement any other custom logic. I stumbled over the non-standard attributes claim. It's just a guess: If my attribute is anything other than NSString, NSNumber or NSDate I will want to have a non-standard Attribute with special setter and getter methods? So, for example, if I wanted to store an image, this would be a non-standard Attribute with type NSData and a special method, say -(void)setImageWithFileURL:(NSURL*)url which then pulls the image data from the file, puts in in an NSData and assigns it to core data? Or did I get that wrong?

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  • How to disable "sender non-delivery notification" in postfix?

    - by David MZ
    I want postfix to stop sending non-delivery notifications to my local account, here is example from my log 17:47:08 A727B62C6F61: message-id=<20121124174708.A727B62C6F61@mail.***********> 17:47:08 F151362C6F5F: sender non-delivery notification: A727B62C6F61 17:47:08 A727B62C6F61: from=<>, size=4676, nrcpt=1 (queue active) 17:47:08 F151362C6F5F: removed 17:47:08 warning: dict_nis_init: NIS domain name not set - NIS lookups disabled 17:47:08 A727B62C6F61: to=<**********>, relay=local, delay=0.01, delays=0/0.01/0/0, ... How can I configure this in my main.cf?

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  • What are some good hosted issue tracking systems for non-developers?

    - by Knox
    This question is similar to Good Open Source issue tracking systems for non-developers but in our case, we would prefer a hosted solution. The users are end-users, on the low end of computer literate, non developers. We have around 5 support people and 50 or so end users. We are interested in simple issue tracking, like a printer being down, as opposed to project or bug tracking. Email integration is desired.

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  • Documentation in RETL, RIB, and RSL Release 13.2.4

    - by Oracle Retail Documentation Team
    The Patch Release 13.2.4 of the integration-related products, Oracle Retail Extract, Transform and Load (RETL), Oracle Retail Integration Bus (RIB), and Oracle Retail Service Layer (RSL), is now available from My Oracle Support. End User Documentation Enhancements The following enhancements have been made to the documentation: New RETL Installation GuideNew in Release 13.2.4, the RETL Installation Guide includes complete instructions to install and configure RETL 13.2.4. Installation instructions were previously in the Programmer’s Guide. As part of this enhancement, content was added to and tested in the RETL Installation Guide to ensure that it contain similar chapters and sections included in other Oracle Retail Installation Guides. Template Creator documentation, under the RIB product umbrellaThe Oracle Retail Functional Artifact Guide and the Oracle Retail Functional ArtifactGenerator Guide contain new information about a new tool called the Template Creator. The Functional Artifacts Generator tool has been enhanced to generate custom and localized payloads business objects on demand, based on Oracle Retail Functional Artifact rules. A new tool called the Template Creator has been provided to create the placeholder XSDs and the import hooks in the base objects on an as-needed basis. In other words, this tool constructs the appropriate placeholders in the packaging structure in the correct locations. The Artifact Generator tools, including the Template Creator, can be used either as a command line or GUI tool set.   List of Documents in RETL, RIB, and the Oracle Retail Service Layer (RSL) 13.2.4  The following documents are included in release 13.2.4 of the applications noted above: RIB Oracle Retail Integration Bus Release Notes Oracle Retail Integration Bus Implementation Guide Oracle Retail Integration Bus Installation Guide Oracle Retail Integration Bus Operations Guide Oracle Retail Functional Artifact Generator Guide Oracle Retail Functional Artifacts Guide Oracle Retail Service Layer Installation Guide Oracle Retail SOA Enabler Tool Guide RIB Integration Guide (ID 1277421.1) RETL Oracle Retail Extract, Transform, and Load Release Notes Oracle Retail Extract, Transform, and Load Installation Guide Oracle Retail Extract, Transform, and Load Programmer’s Guide RSL Oracle Retail Service Layer Release Notes Oracle Retail Service Layer Installation Guide Oracle Retail Service Layer Programmer’s Guide

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  • unit level testing, agile, and refactoring

    - by dsollen
    I'm working on a very agile development system, a small number of people with my doing the vast majority of progaming myself. I've gotten to the testing phase and find myself writing mostly functional level testing, which I should in theory be leavning for our tester (in practice I don't entirely...trust our tester to detect and identify defects enough to leave him the sole writter of functional tests). In theory what I should be writing is Unit level tests. However, I'm not sure it's worth the expense. Unit testing takes some time to do, more then functional testing since I have to set up mocks and plugs into smaller units that weren't design to run in issolation. More importantly, I find I refactor and redesign heavily-part of this is due to my inherriting code that needed heavy redesign and is still being cleaned up, but even once I've finished removing parts that need work I'm sure in the act of expanding the code I'll still do a decent amount of refactoring and redesign. It feels as if I will break my unit tests, forcing wasted time to refactor them as well, often due to unit test, by definition, having to be coupled so closely to the code structure. So.is it worth all the wasted time when functional tests, that will never break when I refactor/redesign, should find most defects? Do unit tests really provide that much extra defect detetection over through functional? and how does one create good unit tests that work with very quick and agile code that is modified rapidly? ps, I would be fine/happy with links to anything one considers an excellent resource for how to 'do' unit testing in a highly changing enviroment. edit: to clarify I am doing a bit of very unoffical TDD, I just seem to be writing tests on what would be considered a functional level rather then unit level. I think part of this is becaus I own nearly all of the project I don't feel I need to limit the scope as much; and part of it is that it's daunting to think of trying to go back and retroactively add the unit tests needed to cover enough code that I can feel comfortable testing only a unit without the full functionality and trust that unit still works with the rest of the units.

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  • Should I use non-standard tags in a HTML page for highlighting words?

    - by rcs20
    I would like to know if it's a good practice or legal to use non-standard tags in an HTML page for certain custom purposes. For example: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam consequat, felis sit amet suscipit laoreet, nisi arcu accumsan arcu, vel pulvinar odio magna suscipit mi. I want to highlight "consectetur adipiscing elit" as important and "nisi arcu accumsan arcu" as highlighted. So in the HTML I would put: Lorem ipsum dolor sit amet, <important>consectetur adipiscing elit</important>. Nullam consequat, felis sit amet suscipit laoreet, <highlighted>nisi arcu accumsan arcu</highlighted>, vel pulvinar odio magna suscipit mi. and in the CSS: important { background: red color: white; } highlighted { background: yellow; color: black; } However, since these are not valid HTML tags, is this ok?

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  • Removing existing filtered pages from Google's index: noindex / 301 / canonical to non-filtered page?

    - by Noam
    I've decided to remove some of my site's pages from the Google index to focus more of the indexed pages on higher quality pages. The pages I'm going to remove are already in the index. These removed pages are filtered pages which will continue to exist, I just don't want them in the google index because they add little quality to the same page without any filter selected. I've added in webmaster tools specification of narrow for the parameters that set these filters, but it doesn't seem this changes anything in how he handles these pages. So I'm considering three options: Adding <meta name="robots" content="noindex" /> to the html header of these filtered pages 301 to the non-filtered page that contains the most similar information and will remain in the index Canonical tag. Which I'm not sure is exactly the mainstream use case, as these aren't really the same pages. Which should I use?

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