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  • Sendmail + m4 - problem converting mc files into cf

    - by zbigh
    Hi I'm currently trying to configure sendmail fo the first time and setup a mail server on a small embedded computer ( running a custom linux distribution ). I'm having an issue with the m4 macros: I'm trying to convert this: VERSIONID(`$Id: generic-linux.mc,v 8.1 1999/09/24 22:48:05 gshapiro Exp $') OSTYPE(linux)dnl DOMAIN(generic)dnl define(HELPFILE, `/etc/mail/helpfile') FEATURE(nouucp, `noscpecial') MAILER(local)dnl MAILER(smtp)dnl to sendmail.cf, but all the output I get when running m4 is: VERSIONID($Id: generic-linux.mc,v 8.1 1999/09/24 22:48:05 gshapiro Exp $) OSTYPE(linux)DOMAIN(generic) FEATURE(nouucp, noscpecial) MAILER(local)MAILER(smtp) Am I doing something wrong?

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  • Select random row from MySQL (with probability)

    - by James Simpson
    I have a MySQL table that has a row called cur_odds which is a percent number with the percent probability that that row will get selected. How do I make a query that will actually select the rows in approximately that frequency when you run through 100 queries for example? I tried the following, but a row that has a probability of 0.35 ends up getting selected around 60-70% of the time. SELECT * FROM table ORDER BY RAND()*cur_odds DESC

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  • Playing an arbitrary tone with Android.

    - by fiXedd
    Is there any way to make Android emit a sound of arbitrary frequency (meaning, I don't want to have pre-recorded sound files)? I've looked around and ToneGenerator was the only thing I was able to find that was even close, but it seems to only be capable of outputting the standard DTMF tones. Any ideas?

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  • Fiber optic internet, final connection to lan

    - by RayQuang
    Hi, We have fiber optic internet coming to our office soon, and i would like to know if it would be worth installing fiber NIC's in our servers and machines instead of using cat6 gigabit. Here is the layout: (fiber) cable from distribution point in basement - fiber optic modem - Network gateway (debian lenny) - network computers and servers I was wondering if it would be worth installing a fiber connection from the modem to the gateway and the network clients. Will the costs be worth it in terms of speed, latency and stability? Thanks, RayQuang

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  • Grep and Awk in Windows Invalid Char in Expression Error

    - by Nathan
    I am new to grep and awk - using Windows 7 (I downloaded grep and awk for windows from GnuWin). I am have having trouble running this script: grep -Fwf dictionary.txt frequency.txt | awk '{print $2 "," $1}' I get the error: awk: '{print awk: ^ invalid char ''' in expression I believe it might have something to do with having to use double quotes in Windows, but I tried all the combinations I can think of and still it doesn't work. Can anyone help? Thanks

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  • Dynamic programming solution to the subset-sum decision problem

    - by Gail
    How can a dynamic programming solution for the unbounded knapsack decision problem be used to come up with a dynamic programming solution to the subset-sum decision problem? This limitation seems to render the unbounded knapsack problem useless. In the unbounded knapsack, we simply store true or false for if some subset of integers sum up to our target value. However, if we have a limit on the frequency of the use of these integers, the optimal substructure at least appears to fail. How can this be done?

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  • Creating simple waveforms with CoreAudio

    - by Koning Baard
    I am new to CoreAudio, and I would like to output a simple sine wave and square wave with a given frequency and amplitude through the speakers using CA. I don't want to use sound files as I want to synthesize the sound. What do I need to do this? And can you give me an example or tutorial? Thanks.

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  • Install GRUB on NTFS

    - by karatchov
    I would like to install 2 completely independent instances of Windows XP (no data should be shared) in my computer within 2 different primary partitions. I know that grub can handle booting them correctly, but I have no idea if it's possible to install it and configure it within a 100% NTFS system and without any extra linux partition/distribution.

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  • Is xterm the terminal window we open in Ubuntu

    - by blog.adaptivesoftware.biz
    I know this is a very naive question. I was reading somewhere that Linux allows 7 xterm's. However, I can start more than 7 terminal apps from my Ubuntu system (Application - Accessories - Terminal). There is definetely a hole in my knowledge... will help if someone helped me understand the difference between an xterm and the Terminal application in a Linux distribution such as Ubuntu.

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  • Is the Finch audio library for iPhone capable of doing this?

    - by mystify
    I need to: - start / stop sounds with lengths between 0.1 and 10 seconds - change the playback volume I want to / would like to / would be nice to have to: - change the playback speed - change the playback pitch / frequency - pause an sound and resume playing it later - play a sound backwards Is Finch my best friend here?

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  • What is the best graphical terminal/console for Linux?

    - by bgy
    Well, I'm often tired of the basic functionalities of terminal provided as is when installing a new distribution. What is the best console in a graphical mode? For now, all I want to is: Tabs management Easy copy/paste (^C/^V support) UTF-8 support Should be available for both KDE/Gnome environnement Please be argumentative, don't answer with 'my favorite is' only. Try to tell me why and which features it offers.

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  • SSL certificate for Oracle Application Server 11g

    - by Easter Sunshine
    I was asked to get an SSL certificate for an "Oracle Application Server 11g" which has a soon-to-expire certificate. Brushing aside the fact that 10g seems to be the newest version, I got a certificate from InCommon, as I usually do without problem (except this is the first time I supplied Oracle Application Server 11g as the software type on the CSR form). On the email containing links to download the certificate, it mentioned: Certificate Details: SSL Type : InCommon SSL Server : OTHER I forwarded the email over to the person responsible for installing it and got a reply that the server type must be Oracle Application Server for the certificate to work (the CN is the same as before). They were unable to install this certificate (no details provided to me) and mentioned they had this issue previously with Thawte when they didn't supply Oracle Application Server as the server type. I don't see any significant difference between the currently installed certificate (working) and the new one I just got signed by InCommon (not working). $ openssl x509 -in sso-current.cer -text shows, with irrelevant information ommitted. Data: Version: 3 (0x2) Signature Algorithm: sha1WithRSAEncryption Issuer: C=ZA, ST=Western Cape, L=Cape Town, O=Thawte Consulting cc, OU=Certification Services Division, CN=Thawte Premium Server CA/[email protected] Validity Not Before: Oct 1 00:00:00 2009 GMT Not After : Nov 28 23:59:59 2012 GMT Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (2048 bit) Modulus: Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Basic Constraints: critical CA:FALSE X509v3 CRL Distribution Points: Full Name: URI:http://crl.thawte.com/ThawteServerPremiumCA.crl X509v3 Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication Authority Information Access: OCSP - URI:http://ocsp.thawte.com Signature Algorithm: sha1WithRSAEncryption and $ openssl x509 -in sso-new.cer -text shows Data: Version: 3 (0x2) Signature Algorithm: sha1WithRSAEncryption Issuer: C=US, O=Internet2, OU=InCommon, CN=InCommon Server CA Validity Not Before: Nov 8 00:00:00 2012 GMT Not After : Nov 8 23:59:59 2014 GMT Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (2048 bit) Modulus: Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Authority Key Identifier: keyid:48:4F:5A:FA:2F:4A:9A:5E:E0:50:F3:6B:7B:55:A5:DE:F5:BE:34:5D X509v3 Subject Key Identifier: 18:8D:F6:F5:87:4D:C4:08:7B:2B:3F:02:A1:C7:AC:6D:A7:90:93:02 X509v3 Key Usage: critical Digital Signature, Key Encipherment X509v3 Basic Constraints: critical CA:FALSE X509v3 Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication X509v3 Certificate Policies: Policy: 1.3.6.1.4.1.5923.1.4.3.1.1 CPS: https://www.incommon.org/cert/repository/cps_ssl.pdf X509v3 CRL Distribution Points: Full Name: URI:http://crl.incommon.org/InCommonServerCA.crl Authority Information Access: CA Issuers - URI:http://cert.incommon.org/InCommonServerCA.crt OCSP - URI:http://ocsp.incommon.org Nothing jumps out at me as the reason one would not work so I don't have a specific request for the signer for what to do differently when re-signing.

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  • MS Access MSChart.Graph.8 not printing

    - by Tanj
    Software: Microsoft Access 2007 SP2 Database File Version: Access 2000 I have an access program that I inherited from a previous employee. It uses forms for reports and since I don't have much experience in access I have continued to do this. I have created a copy of the program for another project and modified it to suit. I am having trouble getting more then one chart to print. All the charts display in form view, they all have the same properties (excepting data, position, etc.) For some reason they are not printing. They don't even show up in the print preview. I am thinking it must be something with the graphs themselves as they sometimes lose all information. I have to open the graphs in edit mode and change the data source from column to row and back again so that it gets redrawn. (Refresh doesn't fix it) So right now I don't even have a clue as to where to look so ideas are welcome. Edit #1 It seems to be a problem with linking to an unbound form. Subform Field Linker: Can't build a link between unbound forms. The query for the main form is SELECT tTest.ixTest, tMotorTypes.ixMotorType, tMotorTypes.asMotorType, tMotorTypes.fDeprecated, tTestType.asTest, tTest.asSerialNum, tTest.asOrderNum, tTest.asFrameNum, tTest.asRotorNum, tTest.asOperator, tTest.iStation, tTest.dtTestDate, tTest.ixTestType FROM tMotorTypes INNER JOIN (tTestType INNER JOIN tTest ON tTestType.ixTestType=tTest.ixTestType) ON tMotorTypes.ixMotorType=tTest.ixMotorType; The query for the chart is: SELECT qGraphRSTTemperatures.Frequency, qGraphRSTTemperatures.[Drive End], qGraphRSTTemperatures.[Non Drive End], qGraphRSTTemperatures.[Air In], qGraphRSTTemperatures.Core FROM qGraphRSTTemperatures ORDER BY qGraphRSTTemperatures.ixTemperature; Query qGraphRSTTemperatures: SELECT tElectricalData.dblFrequency AS Frequency, tTemperatures.dblDrvEnd AS [Drive End], tTemperatures.dblNonDrvEnd AS [Non Drive End], tTemperatures.dblAirIn AS [Air In], tTemperatures.dblCore AS Core, tSubTest.ixTest, tTemperatures.ixTemperature FROM (tSubTest INNER JOIN tElectricalData ON tSubTest.ixSubTest = tElectricalData.ixSubTest) LEFT JOIN tTemperatures ON tElectricalData.ixElectrical = tTemperatures.ixElectrical WHERE (((tSubTest.ixSubTestType)=5)) ORDER BY tSubTest.ixTest, tTemperatures.ixTemperature; So how come, in the form view it shows the graph with the correct data when linked thus: Child field: ixTest Master field: ixTest but won't print the graph. The graph will print if I remove the links, but then I have all the data from chart query as it is not limited by ixTest. edit #2 It seems to be a data retrieval/rendering issue in printing. Is there anything in printing that changes the context of records with respect to parent/child relationships?

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  • Schema changes with replication

    - by Even Mien
    What are the steps to make a schema change to a SQL Server 2005 database using transactional replication? I'm trying to add a database column. I thought if I removed the article for the table, made the schema change, and then added the article for the table back that the schema change would replicate. I am now getting the following error every minute or so: SQL Server errors Replication-Replication Distribution Subsystem: agent [jobname] failed. Invalid column name 'NewColumn'.

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  • how to programatically determine Bluetooth master/slave roles?

    - by Rich
    So in a bluetooth piconet, there is one master with upto seven slaves. The master sets the clock and frequency hop that the slaves sync with. But is there a way to determine which device is the master and which is the slave? I'm mainly interested in portable devices (Android,iPhone) but beggars can't be choosers, if anybody has info in this field I would be interested. Thanks

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  • Xorg: How can I map AltGr to the CapsLock Key (to toggle 3rd level symbols)

    - by basweber
    Hi, as many others I don't need Capslock. I want to reassign it to have the function of AltGr. I use Kubuntu 9.10 but I think there must be a solution which is distribution independent. I already tried to use setxkbmap or xmodmap. Using xmodmap at least I managed that the CapsLock key to behaves like the Delete key by following this description. But I could not achieve assigning the AltGr behavior to CapsLock.

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  • using either notify-send or zenity in Cron

    - by kerry scott
    I am trying to get cron to provide a screen alert when it spots a particular situation. I know the script is executed each minute but it will not display on the screen script executed is :DISPLAY=:0.0 /usr/bin/notify-send -t 1000 Test "This is a test" Run Gnome from the Mandriva distribution Any ideas

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  • Is it good practice to use std::size_t all over the place?

    - by dehmann
    I have a lot of constants in my code that are unsigned numbers, e.g. counters, frequency cutoffs, lengths, etc. I started using std::size_t for all of these, instead of int or unsigned int. Is that the right thing to do? I started it because the STL containers use it for their sizes, it's used for string position, etc.

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  • How to increment counters based on a printed array

    - by Sam Liew
    I managed to developed a simple board of 5x5 using random numbers and array. Big achievement for someone like me! :) Now I have to increment the counters depending on the frequency of the numbers. If the value within 0-49 is printed..then nCounter++ If the value within 50-75 is printed..then pCounter++ something like that. The problem is that I don't know how to increase the counters based on the printed board. Here is the code: #include <stdio.h> #include <stdlib.h> #include <time.h> int main() { //Initialize Variables int randomNumber; int rows; int columns; int hdCounter =0; int hCounter = 0; int cCounter = 0; int pCounter = 0; int nCounter = 0; //Declare board size int board[5][5]; //size of board is 5 x 5 //Create the random number generator seed srand(time(NULL)); //Assign the random numbers from 1 - 25 into variable randomNumber //Create the rows for the board for ( rows = 1; rows <= 5 ; rows++ ) { //Create the colimns for the board for ( columns = 1; columns <= 5 ; columns++ ) { //Assign variable randomNumber into variable board randomNumber = rand() %100 + 1; board[rows][columns] = randomNumber; //print the board printf("%d\t", board[rows][columns]); //calculate the frequency of numbers on the printed board if (randomNumber >= 85 && randomNumber <= 100 ) hdCounter++; else if ( randomNumber >= 75 ) hCounter++; else if ( randomNumber >= 65 ) cCounter++; else if ( randomNumber >= 50 ) pCounter++; else if ( randomNumber >= 1 ) nCounter++; else continue; } //Newline after the end of 5th column. printf("\n\n"); } printf( "N \t P \t C \t H \t HD\n\n" ); printf("%d \t %d \t %d \t %d \t %d \t", nCounter, pCounter, cCounter, hCounter, hdCounter); }//end main I tried replacing randomNumber in the if-statement with board[rows][columns] but I seem to get the same undesired results.

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  • Centos mysql version is 5.5 however PHPmyadmin still says version 5.1

    - by Marc Rasmussen
    When i run the following in my console: [root@****~]# mysql -u root -p -e 'SELECT VERSION();' Enter password: +-----------+ | VERSION() | +-----------+ | 5.5.39 | +-----------+ Which should be the correct version. However when i enter my PHPMYADMIN on my server it has the following specs: Server: Localhost via UNIX socket Program: MySQL Programversion: 5.1.73 - Source distribution So which version is the correct one and how do i make sure that the database is running on 5.5? Note I have already restarted sql several times without any changes

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  • Return only the new database items since last check in Rails

    - by Smith
    I'm fairly new to Ruby, and currently trying to implement an AJAX style commenting system. When the user views a topic, all the current comments on that topic will be displayed. The user can post a comment on the page of a topic and it should automatically display without having to refresh the page, along with any new comments that have been posted since the last comment currently displayed to the user. The comments should also automatically refresh at a specified frequency. I currently have the following code: views/idea/view.html.erb <%= periodically_call_remote(:update => "div_chat", :frequency => 1, :position => "top", :url => {:controller => "comment", :action => :test_view, :idea_id => @idea.id } ) %> <div id="div_chat"> </div> views/comment/test_view.html.erb <% @comments.each do |c| %><div id="comment"> <%= c.comment %> </div> <% end %> controllers/comment_controller.rb class CommentController < ApplicationController before_filter :start_defs def add_comment @comment = Comment.new params[:comment] if @comment.save flash[:notice] = "Successfully commented." else flash[:notice] = "UnSuccessfully commented." end end def test_render @comments = Comment.find_all_by_idea_id(params[:idea_id], :order => "created_at DESC", :conditions => ["created_at > ?", @latest_time] ) @latest = Comment.find(:first, :order => "created_at DESC") @latest_time = @latest.created_at end def start_defs @latest = Comment.find(:first, :order => "created_at ASC") @latest_time = @latest.created_at end end The problem is that every time periodically_call_remote makes a call, it returns the entire list of comments for that topic. From what I can tell, the @latest_time gets constantly reset to the earliest created_at, rather than staying updated to the latest created_at after the comments have been retrieved. I'm also not sure how I should directly refresh the comments when a comment is posted. Is it possible to force a call to periodically_call_remote on a successful save?

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  • Visual Studio C++ list iterator not decementable

    - by user69514
    I keep getting an error on visual studio that says list iterator not decrementable: line 256 My program works fine on Linux, but visual studio compiler throws this error. Dammit this is why I hate windows. Why can't the world run on Linux? Anyway, do you see what my problem is? #include <iostream> #include <fstream> #include <sstream> #include <list> using namespace std; int main(){ /** create the list **/ list<int> l; /** create input stream to read file **/ ifstream inputstream("numbers.txt"); /** read the numbers and add them to list **/ if( inputstream.is_open() ){ string line; istringstream instream; while( getline(inputstream, line) ){ instream.clear(); instream.str(line); /** get he five int's **/ int one, two, three, four, five; instream >> one >> two >> three >> four >> five; /** add them to the list **/ l.push_back(one); l.push_back(two); l.push_back(three); l.push_back(four); l.push_back(five); }//end while loop }//end if /** close the stream **/ inputstream.close(); /** display the list **/ cout << "List Read:" << endl; list<int>::iterator i; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** now sort the list **/ l.sort(); /** display the list **/ cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; list<int> lReversed; for(i=l.begin(); i != l.end(); ++i){ lReversed.push_front(*i); } cout << "Sorted List (tail to head):" << endl; for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** remove first biggest element and display **/ l.pop_back(); cout << "List after removing first biggest element:" << endl; cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; cout << "Sorted List (tail to head):" << endl; lReversed.pop_front(); for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** remove second biggest element and display **/ l.pop_back(); cout << "List after removing second biggest element:" << endl; cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; lReversed.pop_front(); cout << "Sorted List (tail to head):" << endl; for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** remove third biggest element and display **/ l.pop_back(); cout << "List after removing third biggest element:" << endl; cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; cout << "Sorted List (tail to head):" << endl; lReversed.pop_front(); for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** create frequency table **/ const int biggest = 1000; //create array size of biggest element int arr[biggest]; //set everything to zero for(int j=0; j<biggest+1; j++){ arr[j] = 0; } //now update number of occurences for( i=l.begin(); i != l.end(); i++){ arr[*i]++; } //now print the frequency table. only print where occurences greater than zero cout << "Final list frequency table: " << endl; for(int j=0; j<biggest+1; j++){ if( arr[j] > 0 ){ cout << j << ": " << arr[j] << " occurences" << endl; } } return 0; }//end main

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