Search Results

Search found 12089 results on 484 pages for 'rule of three'.

Page 202/484 | < Previous Page | 198 199 200 201 202 203 204 205 206 207 208 209  | Next Page >

• UFW blocking webrick on port 3000

  - by t Book

  On a ubuntu 10.0.4 server runs redmine. starting webrick with: ./server webrick -e production -b lvps46-173-79-113.dedicated.hosteurope.de -d makes redmine available in browser. as soon as we enable ufw, webrick can´t be accessed anymore. of course we allowed Port 3000 from anywhere ufw allow 3000/tcp ufw allow 3000/udp also a grep for iptables doesn´t show a deny rule iptables -nL | grep 3000 find the whole iptables output here http://pastebin.com/k6WNqdPU checking lsof -ni tcp:2222 tells me ruby is listening on port 3000 ruby 3457 root 5u IPv4 864846667 0t0 TCP 46.173.79.113:3000 (LISTEN) What else can we check? what´s wrong with the ufw rules for port 3000?

  Read the article

• Sum and average over null values SQL Server 2008 Analysis Services

  - by Jonathan

  I have a simple problem, I think, but I have googled and can't find the solution. I have a cube that has MeasureA, MeasureB and MeasureC. Not all three measures have values for each record, sometimes they can be null, it's depending if it was applicable. Now for my totals, I need to average but the average must not take nulls into account. Any help will be much appreciated. When I view the measures, the null values show as zeros.

  Read the article

• XHTML/CSS layout to ASP.NET

  - by Zai

  I am trying to build a website consist of three pages but with a contact form using ASP.NET. Now that I have build the layout and all xhtml/css and some javascript and next I wan to convert it so that it's dynamic and can send email. Do I need to convert it using Visual Studio or just rename files from .html to .aspx? and then create a form in Visual studio?... Confused :(

  Read the article

• how to fast compute distance between high dimension vectors

  - by chyojn

  assume there are three group of high dimension vectors: {a_1, a_2, ..., a_N}, {b_1, b_2, ... , b_N}, {c_1, c_2, ..., c_N}. each of my vector can be represented as: x = a_i + b_j + c_k, where 1 <=i, j, k <= N. then the vector is encoded as (i, j, k) wich is then can be decoded as x = a_i + b_j + c_k. my question is, if there are two vector: x = (i_1, j_1, k_1), y = (i_2, j_2, k_2), is there a method to compute the euclidian distance of these two vector without decode x and y.

  Read the article

• algorithm to make easy my job

  - by gcc

  Iwill tell part of study material task but, dont afraid, I dont want write all of them , I will ask just specific question.okey; User will give me a function with three unknown. example: sin(a+b)+ln(5)*(log(ab)-32/sqrt(abc)) another example for function atan(23/a)-exp(a,b)*(123+asin(ac)) and there are some another input with funtion but in all input a,b and c, are doesnot determined, Anyway,I wont tell the other part,I just asking how I should take the fuction such that I can do my job with easy?

  Read the article

• LINQ - joining multiple lists

  - by kristian

  I've looked at the 101 Linq Samples here but I can't see anything like this in that list. If I'm just not seeing a relevant example there, please link to it. If I have these 3 classes: class Student { int id; string name } class Course { int id, string name } class Enrolment { int studentId; int courseId; } How would I use LINQ to get a list of courses a student is enrolled on? (assume I have an IList of all three classes)

  Read the article

• What is a good free ODBC viewer?

  - by wshato

  At my job I have to work with three different databases. One is a SQL Server 2008, for which I use SQL Server Management Studio, and another is MySQL, for which I use the MySQL tools. The third however is a Cache database that I can only access through a ODBC connection. Currently I use the SLIK software ODBC View tool to access it, but it is severely lacking when compared with the other two tools. Can anyone recommend a good tool for this type of work?

  Read the article

• How to find CPU-intensive class in Java?

  - by I.Randanad

  I have a big program in Java that uses multithreading. In some cases, the program starts using 100% of three cores of my eight core system. In normal use, the program use all cores at 1-2%. How can I find the class that's overloading cores?

  Read the article

• Nesting QDockWidgets

  - by Brent Parker

  Right now I have four customized QDockWidgets on the left side of my application. When you start the application, each one is visible, but very small because of the visibility of each one. I would like for three of the QDockWidgets to nest behind one primary one to give that one priority and the entire left side of the screen. Does anyone know how to tell QDockWidgets to nest when they are created?

  Read the article

• Windows 7 Laptop, cursor jumping after typing the letters "y" or "t" [closed]

  - by Dave K

  My wife has an HP laptop running windows 7. She has a very frustrating problem when typing: in some, but not all cases, typing the letter's "y" or "t" will cause the cursor to jump back a few lines or some number of words. The result is that she ends up typing over whatever it was that she was working on. (as a matter of fact, I just experienced this while typing this question on her computer with the phrase: "typing the letter..." above.) I've installed the latest drivers for her touchpad from Synaptic and disabled tap touching and gesture features to rule out simple unintended mouse clicks. Still the "y" and "t" keys continue to cause problems.

  Read the article

• Small utilities useful while programming [closed]

  - by subSeven

  What small and cool applications that can be helpful for programmer do you know ? I think about programs that not very famous. I know three: http://advsys.net/ken/download.htm EvalDraw - for protoyping games http://www.drpetter.se/project_sfxr.html sfxr - for makeing sound http://www.kloonigames.com/blog/general/timelog timelog - for mangament time of project

  Read the article

• Fedora: "Login Incorrect"

  - by darkblackcorner

  I've just set up a minimal install on my netbook (the default was too resource hungry, so I figured I'd customize the install and learn something about linux at the same time!) No problems logging in as root, but when I create a new user and try to login as them I just get the "Login incorrect" error. I'm certain the password is correct, though the secure log displays an authentication error. Am I missing a permission somewhere? useradd test usermod -p [pwd] test Shell is added automatically I think (checking password file says shell is /bin/bash) I've tried adding the user to the sudo-ers group usermod -a -G wheel which doesn't help. I've kept the password simple in order to rule out human error.

  Read the article

• Unable to connect to FTP sites

  - by Fariborz Navidan

  Since a few days ago I am unable to connect to any FTP site neither through Windows's FTP client nor through other software like WinSCP. But I can login through command line FTP client. I am using Windows 7. ESET firewall is disabled and did not find any blocking rule in windows firewall. A symptom is when enter ftp://my-server.com in windows explorer address bar it says "windows cannot access the folder" and there is no further info in Details section. Please help!

  Read the article

• i++ or i+=1 or i= i+1 which one is better for good performance

  - by Ram

  I have 3 options to increment value of an integer by 1 in a C# application i++ i+=1 i=i+1 The result of all three operations would be same but I would like to know which one would be the best to use if I need to use this statement in an application where the performance is critical.

  Read the article

• Is it OK to put a standard, pure C header #include directive inside a namespace?

  - by mic_e

  I've got a project with a class log in the global namespace (::log). So, naturally, after #include <cmath>, the compiler gives an error message each time I try to instantiate an object of my log class, because <cmath> pollutes the global namespace with lots of three-letter methods, one of them being the logarithm function log(). So there are three possible solutions, each having their unique ugly side-effects. Move the log class to it's own namespace and always access it with it's fully qualified name. I really want to avoid this because the logger should be as convenient as possible to use. Write a mathwrapper.cpp file which is the only file in the project that includes <cmath>, and makes all the required <cmath> functions available through wrappers in a namespace math. I don't want to use this approach because I have to write a wrapper for every single required math function, and it would add additional call penalty (cancelled out partially by the -flto compiler flag) The solution I'm currently considering: Replace #include <cmath> by namespace math { #include "math.h" } and then calculating the logarithm function via math::log(). I have tried it out and it does, indeed, compile, link and run as expected. It does, however, have multiple downsides: It's (obviously) impossible to use <cmath>, because the <cmath> code accesses the functions by their fully qualified names, and it's deprecated to use in C++. I've got a really, really bad feeling about it, like I'm gonna get attacked and eaten alive by raptors. So my question is: Is there any recommendation/convention/etc that forbid putting include directives in namespaces? Could anything go wrong with diferent C standard library implementations (I use glibc), different compilers (I use g++ 4.7, -std=c++11), linking? Have you ever tried doing this? Are there any alternate ways to banish the math functions from the global namespace? I've found several similar questions on stackoverflow, but most were about including other C++ headers, which obviously is a bad idea, and those that weren't made contradictory statements about linking behaviour for C libraries. Also, would it be beneficial to additionally put the #include <math.h> inside extern "C" {}?

  Read the article

• Selecting countries with largest populations in SQL

  - by Dharmendra

  table is bbc(name, region, area, population, gdp) Some countries have populations more than three times that of any of their neighbours (in the same region). Give the countries and regions. Please help.

  Read the article

• Centos 6.2, Apache 2 and Listen port for socket connection

  - by salvosav

  I'm trying to make a socket connection between a client and my server through a php script. To do this, I opened a port on iptables, and configure a virtual host with apache to redirect all traffic from my door to the folder that contains the file index.php, which is my script. Doing some tests the door is open, but using command netstat -ltn , I see ':::35100'. Looking on the net I understand if in this way is only listen inward and not outward. But I don't understand how can I turn this ':::35100 '-' in this '0.0.0.0:35100 '. Or, better yet, how to add this rule. Any ideas? thanks

  Read the article

• python objects confusion

  - by james

  wow i thought i knew python untill tonight.. what is the correct way to do something like this.. heres my code a = ["one", "two", "three"] b = a #here i want a complete copy that when b is changed, has absolutely no effect on a b.append["four"] print a #a now has "four" in it.. so basically i want to know, instead of the b = a step, how would i correctly make a copy of a list or dictionary so that when b is changed a does not change along with it.. thanks guys

  Read the article

• DNS lookup fails when forwarding to subdomain

  - by Kitaro

  In order to migrate to a new mailserver with little dns problems/downtime, I have set up a second postfix that is currently accessible on a subdomain mx record, eg. the main postfix accepts mail for [email protected] while the second postfix also accepts mail for [email protected]. I added a forwarding rule to postfix saying that postfix should forward mail destined for [email protected] to [email protected] (for regular local delivery) and to [email protected]. Local delivery still works as expected, but when trying forward the mail to the new mx, postfix appeds the domain part at the end of the forwarding address, resulting in [email protected], which of course fails and the mail bounces. Why does postfix mess with the alias name in that way and how can I turn that of?

  Read the article

• How to make silverlight datagrid editable?

  - by Nair

  I created a simple collection of Person with name, age and sex where all three fields have getters and setters. I bound the collection to the data grid using the itemssource. I can see the data been showed up in the data grid but it does not allow me to edit any of the rows. What do I make so that it becomes editable? Thanks.

  Read the article

• Can't access sub domain from my network [closed]

  - by Maninder

  I am trying to access http://www.abc.xyz.com from my network, but not able to do so. However, http://www.xyz.com is opening fine in my browser. Asked a friend to open abc.xyz.com from his machine(in a different network), its opening fine. Checked my firewall settings as well. There's no such rule to deny the specific site or something that could be denying access to the sub domain. Kindly advise, how I can troubleshoot my problem.

  Read the article

• How to differenciate two tables

  - by Nemat

  Hi friends.... I have two tables.I want to get all records from one table that are different from the records in second table. For eg. if we have four records in first table like A,B,C,D and three records in second table thats A,B,C then the answer of query should be D. I have tried "EXCEPT" operator but it doesnt work fine.Kindly help me in writing correct query for the given problem. Any help is appreciated.... Thanks in Advance Nemat

  Read the article

• My textarea won't accept any width attributes.

  - by Kyle Sevenoaks

  Hi, for some odd reason the text area I have in my site won't accept the width I tell it to, I've tried to select it three times in the CSS just to make sure! Here is a jsfiddle example that shows what I want, and here is the page where it doesn't want to work. I have searched through the CSS to find any conflicting textarea properties, but there are none. Thanks for the help!

  Read the article

• Retrieving Data in A NSTableView

  - by Heisennberg

  I have a three column Table View populated by two NSMutableDictionaries which share the same keys (ie key | value1 | value2 ) with dict1(key,value1) and dict2(key,value2). I want to manually enter data in the third column and create the key/value objects in dict2. But when I do that, my code picks the wrong key :S Here's the code for the delegate : - (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex { if ([[aTableColumn identifier] isEqualToString:@"value2"]) { [dict2 setValue:anObject forKey:[[[aTableView tableColumnWithIdentifier:@"key"] dataCellForRow:rowIndex] stringValue ]]; } } Any idea ?

  Read the article

• How iptables behaves on timezone change?

  - by pradipta

  I have doubt how iptables keep changing the info in iptables when timezone is change. I am using iptables s v 1.4.8 I have blocked one IP with following details # date Thu Jun 6 12:46:42 IST 2013 #iptables -A INPUT -s 10.0.3.128 -m time --datestart 2013-6-6T12:0:00 --datestop 2013-6-6T13:0:00 -j DROP # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination DROP all -- 10.0.3.128 anywhere TIME starting from 2013-06-06 12:00:00 until date 2013-06-06 13:00:00 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination But after I change the timezone following things happened automatically . AFTER TIME ZONE CHANGE +++++++++++++++++++++++ #date Thu Jun 6 15:17:48 HKT 2013 # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination DROP all -- 10.0.3.128 anywhere TIME starting from 2013-06-06 14:30:00 until date 2013-06-06 15:30:00 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # The time value is changed in the rule . It is changing with the timezone how. Where iptables keeps track of timezone. Kindly explain me.

  Read the article

< Previous Page | 198 199 200 201 202 203 204 205 206 207 208 209  | Next Page >