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• How to make ghci support ^p to go up?

  - by Kit

  I use Ctrl p a lot instead of up arrow to go up on Terminal. How to make ghci support Ctrl p to go up? I use ghci from ghc98 from port. Mac OS X 10.5.8.

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• Controlling the USB from Windows

  - by b-gen-jack-o-neill

  Hi, I know this probably is not the easiest thing to do, but I am trying to connect Microcontroller and PC using USB. I dont want to use internal USART of Microcontroller or USB to RS232 converted, its project indended to help me understand various principles. So, getting the communication done from the Microcontroller side is piece of cake - I mean, when I know he protocol, its relativelly easy to implement it on Micro, becouse I am in direct control of evrything, even precise timing. But this is not the case of PC. I am not very familiar with concept of Windows handling the devices connected. In one of my previous question I ask about how Windows works with devices thru drivers. I understood that for internal use of Windows, drivers must have some default set of functions available to OS. I mean, when OS wants to access HDD, it calls HDD driver (which is probably internal in OS), with specific "questions" so that means that HDD driver has to be written to cooperate with Windows, to have write function in the proper place to be called by the OS. Something similiar is for GPU, Even DirectX, I mean DirectX must call specific functions from drivers, so drivers must be written to work with DX. I know, many functions from WinAPI works on their own, but even "simple" window must be in the end written into framebuffer, using MMIO to adress specified by drivers. Am I right? So, I expected that Windows have internal functions, parts of WinAPI designed to work with certain comonly used things. To call manufacturer-designed drivers. But this seems to not be entirely true becouse Windows has no way to communicate thru Paralel port. I mean, there is no function in the WinAPI to work with serial port, but there are funcions to work with HDD,GPU and so. But now there comes the part I am getting very lost at. So, I think Windows must have some built-in functions to communicate thru USB, becouse for example it handles USB flash memory. So, is there any WinAPI function designed to let user to operate USB thru that function, or when I want to use USB myself, do I have to call desired USB-driver function myself? Becouse all you need to send to USB controller is device adress and the infromation right? I mean, I don´t have to write any new drivers, am I right? Just to call WinAPI function if there is such, or directly call original USB driver. Does any of this make some sense?

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• RewriteRule causes POST data to get dumped before I can access it

  - by MatthewMcGovern

  I'm currently setting up my own 'webserver' (a Ubuntu Server on some old hardware) so I can have a mess around with PHP and get some experience managing a server. I'm using my own little MVC framework and I've hit a snag... In order for all requests to make it through the dispatcher, I am using: <Directory /var/www/> RewriteEngine On RewriteCond %{REQUEST_URI} !\.(png|jpg|jpeg|bmp|gif|css|js)$ [NC] RewriteRule . HomeProjects/index.php [L] </Directory> Which works great. I read on Stackoverflow to change the [L] to [P] to preserve post data. However, this causes every page to return: Not Found The requested URL <url> was not found on this server. So after some more searching, I found, "Note that you need to enable the proxy module, and the proxy_http_module in the config files for this to work." The problem is, I have no idea how to do this and everything I google has people using examples with virtual hosts and I don't know how to 'translate' that into something useful for my setup. I'm accessing my webserver via my public IP and forwarding traffic on port 80 to the web server (like I'm pretending I have a domain/server). How can I get this enabled/get post data working again? Edit: When I use the following, the server never responds and the page loads indefinately? LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so <Directory /var/www/> RewriteEngine On RewriteCond %{HTTP_REFERER} !^http://(.+\.)?82\.6\.150\.51/ [NC] RewriteRule .*\.(jpe?g|gif|bmp|png|jpg)$ /no-hotlink.png [L] RewriteCond %{REQUEST_URI} !\.(png|jpg|jpeg|bmp|gif|css|js)$ [NC] RewriteRule . HomeProjects/index.php [P] </Directory>

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• Xcode debugger query

  - by Saurabh

  Hi guys, I m using Xcode version 3.1.4 for developing my i-phone application.Now I want to port & debug my application on my i-phone device. So when the i-phone is in debugging mode, the i-phone uses its USB lines to communicate with the debugger?Is the RX,TX lines of the i-phone free during my debugging activity?

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• WCF TCP Protocol

  - by jobless-spt

  I want to host a WCF service with TCP Protocol. I can host the service using IIS or Windows Service. I need to know what port I need to open for this service for it to be accessible by client?

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• send and recive packet in the Lan with multiple mac Addresses in C#

  - by MGH

  Hi , in our Network bandwith assign to mac address and if you can get more than one , you can get more bandwith :) if there any application or class in C# that can do this .... I'm already have the http proxy or port maper to send packets in different ip addresses but because of they are use same mac address it won't work . Any help is appreciated .

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• execl doesn't work in a while(1) cicle, server side; C script

  - by Possa

  Hi guys, I have a problem with a little C script who should run as a server and launch a popup for every message arriving. The execl syntax is correct because if I try a little script with main() { execl(...); } it works. When I put it in a while(1) cicle it doesn't work. Everything else is working, like printf or string operation, but not the execl. Even if I fork it doesn't work. I really don't know what I can do ... can anyone help me? Thanks in advice for your help and sorry for my bad english. Here's the complete server C code. #include <arpa/inet.h> #include <netinet/in.h> #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <sys/socket.h> #include <unistd.h> #include <string.h> #define BUFLEN 512 #define PORT 9930 void diep(char *s) { perror(s); exit(1); } int main() { struct sockaddr_in si_me, si_other; int s, i, slen=sizeof(si_other), broadcastPermission; char buf[100], zeni[BUFLEN]; if ((s=socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP))==-1) diep("socket"); broadcastPermission = 1; if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, (void *) &broadcastPermission, sizeof(broadcastPermission)) < 0) diep("setsockopt() failed"); memset((char *) &si_me, 0, sizeof(si_me)); si_me.sin_family = AF_INET; si_me.sin_port = htons(PORT); si_me.sin_addr.s_addr = htonl(INADDR_ANY); if (bind(s, &si_me, sizeof(si_me))==-1) diep("bind"); while (1) { if (recvfrom(s, buf, BUFLEN, 0, &si_other, &slen)==-1) diep("recvfrom()"); //printf("Received packet from %s:%d\nData: %s\n", inet_ntoa(si_other.sin_addr), ntohs(si_other.sin_port), buf); strcpy(zeni, ""); strcat(zeni, "zenity --warning --title Hack!! --text "); strcat(zeni, buf); printf("cmd: %s\n", zeni); //system (zeni); execl("/usr/bin/zenity", "/usr/bin/zenity", "--warning", "--title", "Warn!", "--text", buf, (char *) NULL); } close(s); return 0; }

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• Configuring already installed PHP to work with already installed ncurses (MAMP).

  - by Tom

  I have installed MAMP and the PHP it came with wasn't compiled with ncurses. I've tried to use port to install ncurses and it seems that it already exists on my system so now I was wondering if there was a way to get PHP to use it without having to recompile PHP --with-ncurses. In other words: Can PHP be configured to use ncurses without the recompilation?

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• glassfish v3 asadmin how to specify XA on connection factory

  - by NDK

  This worked in GFV2: $AS_HOME/bin/asadmin \ --host $AS_ADMIN_HOST \ --user $AS_ADMIN_USER \ --port $AS_ADMIN_PORT \ create-jms-resource \ --restype javax.jms.QueueConnectionFactory \ --description XA\ Queue\ Connection\ Factory \ --property Name=myXAQueueConnectionFactory:SupportsXA=true \ jms/myXAQueueConnectionFactory But the SupportsXA=true no longer works. Maybe I can't find it in the GFV3 manuals, nor can I find it via our friend Google: how to specify XA transactionality using asadmin to configure the factory? Anybody out there know how?

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• scale random 3d model to fit in a viewport

  - by John Qualis

  How can I scale a random 3d model to fit in an opengl viewport? I am able to center the model in the middle of the view port. How do I scale it to fit it in the viewport. The model could be an airplane, a cone, an 3d object or any other random model. Appreciate any help.

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• Is a server an infinite loop running as a background process?

  - by Tony

  Is a server essentially a background process running an infinite loop listening on a port? For example: while(1){ command = read(127.0.0.1:xxxx); if(command){ execute(command); } } When I say server, I obviously am not referring to a physical server (computer). I am referring to a MySQL server, or Apache, etc. Full disclosure - I haven't had time to poke through any source code. Actual code examples would be great!

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• Sizing Switches for Storage and Production

  - by Untalented

  Couple questions. Should you always completely separate the storage network switches from production switches or are VLANs fine to segment this traffic? Is there a golden rule here? How do you properly size a switch for your environment based on the specifications the manufacturer provide (Throughput, Forwarding Throughput, Stacking Throughput, Max Mac)? If you have two switch options and one has a maximum Mac address of 8,000 vs. another with 16,0000. What does this really mean to me? How do make sure one vs. another is sized properly for me? Besides VLAN and Jumbo Frame support, is there any other "Must" haves for a virtual environments production or storage networks? There is a wealth of knowledge on sizing SANs and such, but this seems equally important and it's quite challenging to find as much information. -- Just to add some tidbits of information for the environment. This setup above is referring to the data centers which supports two different locations which have about 100 users between the two in total. The storage traffic will be iSCSI and will be 3 ESXi Hosts and one SAN housing about 2.7TB of data. Since there is currently no storage network in place (no SAN), I'm having a hard time regarding #2 to really determine what backplane throughput and switch specifications will be sufficient.

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• Zend_Search_Lucene vs SOLR

  - by spacemonkey

  Hi, I have recenlty stumbled into Zend Lucene port of Lucene project. I have a little bit experience with SOLR so I would like to know what is the difference between two of them especially from performance and installation side. As much as I know SOLR requires Tomcat serverlet running in web hosting in order to work, what about Zend Lucene library? I am also a bit confused what means "being implemented on the top of Lucene"?

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• How can I pass a C++ member function to a C API as a parameter

  - by michael

  Hi, In my C++ program, I need to call this c API: GConn* gnet_conn_new (const gchar *hostname, gint port, GConnFunc func); where GConnFunc is defined as: void (*GConnFunc) (GConn *conn); My question is if I have a C++ class and have a member function like Class A { public: A(); void my_func (GConn* conn); } In my A::A() Constructor, how can I pass this-myfunc to gnet_conn_new as the GConnFunc parameter? Thank you.

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• Issues with returned mail sent to web-based email domains

  - by Beeder

  My company is having issues with returned mail that we send out to external domains. A few weeks ago we replaced a firewall and changed ISP providers and began subsequently having issues RECEIVING emails from external sources because we hadn't updated our new IPs in the DNS records. After making the necessary configuration changes and setting up SMTP forwarding over port 25 to our mail server, everything was working fine up until a few days ago when we started having mail sent out returned to us. We aren't having any trouble communicating internally (to recipients on our domain) but it seems we're having trouble with outbound messages to web-based email recipients. (@hotmail, @live, @yahoo, @gmail...etc) Currently we are running Server 2003 SP2 and exchange 2003. I'm very unfamiliar with configuring Exchange and could really use some help in narrowing down the possibilities. I did some research and am becoming suspicious of Sender ID being the culprit due to our recent IP address change and the likelihood that Sender ID is identifying us as a fake domain. Am I going in entirely the wrong direction? Any input or guidance would be infinitely appreciated. This is the message that is returned when an outbound message fails...this particular one was sent to my @live.com account for testing purposes... Your message did not reach some or all of the intended recipients. The following recipient(s) could not be reached: [email protected] on 5/17/2012 3:02 PM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. Unfortunately, messages from xx.x.xx.x weren't sent. Please contact your Internet service provider since part of their network is on our block list. I tried a reverse DNS lookup and found that we are set up as a Forward-confirmed reverse DNS. So do I just need to contact my ISP and have them correct their DNS records or is this something I can solve on our end??

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• How to find multiple words on the same line in Notepad++

  - by Mike

  I have a 4MB log file from the Windows XP firewall which I'm trying to find lines that have both DROP and an IP and a port number. My regex-fu is weak and I'm assuming this is the reason I'm struggling. The words "DROP", "10.1.1.1" (for example) and "8801" need to be found on the same line and may be spread across the line and separated by one or more other words. Any help (or suggestions of another method to do this) are much appreciated.

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• Web service security not working. Java

  - by Nitesh Panchal

  Hello, I have a ejb module which contains my ejbs as well as web services. I am using Netbeans 6.8 and Glassfish V3 I right clicked on my web service and clicked "edit web service attributes" and then checked "secure service" and then selected keystore of my server. This is my sun-ejb-jar.xml file :- <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE sun-ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 9.0 Servlet 2.5//EN" "http://www.sun.com/software/appserver/dtds/sun-web-app_2_5-0.dtd"> <sun-ejb-jar> <security-role-mapping> <role-name>Admin</role-name> <group-name>Admin</group-name> </security-role-mapping> <security-role-mapping> <role-name>General</role-name> <group-name>General</group-name> </security-role-mapping> <security-role-mapping> <role-name>Member</role-name> <group-name>Member</group-name> </security-role-mapping> <enterprise-beans> <ejb> <ejb-name>MemberBean</ejb-name> <webservice-endpoint> <port-component-name>wsMember</port-component-name> <login-config> <auth-method>BASIC</auth-method> <realm>file</realm> </login-config> </webservice-endpoint> </ejb> </enterprise-beans> </sun-ejb-jar> Here MemberBean is my ejb and wsMember is my webservice. Then i made another project and added web service client and again right clicked on "edit web service attributes" and gave password as test and test. This username and password (test) is in Glassfish server in file realm. But when i try to invoke my webservice i always get SEC5046: Audit: Authentication refused for [test]. SEC1201: Login failed for user: test What am i doing wrong? Am i missing something?

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• how to know smtp server name of my ISP?

  - by Piyush

  I want to send a mail from localhost. I am using XAMPP to develop my php app.I found in google that I have to modify php.ini file, localhost must be replaced by server name of my ISP.Whats that??? [mail function] ; For Win32 only. ; http://php.net/smtp SMTP = localhost ; http://php.net/smtp-port smtp_port = 25

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• Saving Data to Registry on Windows 7

  - by Jim Fell

  I heard that Windows 7 restricts access to its registry, so that applications cannot write directly to it. Is this so? I am developing an application in C#, and I would like to be able to save things such as port settings, last file used, etc. between sessions. Is the registry still a good option, or is there another preferred means of doing this now? Thanks.

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• Tunnell network requests with Windows 7

  - by mark

  I've Windows 7 64bit Pro client in a private LAN behind a Netgear wgr614v7 router. I've also a remote Debian server machine outside. I'd like to tunnel all (or specified ports/protocols) over this outside server, so when I'm on the Windows machine and I request serverfault.com it would not appear from the wgr614v7 public IP but from the server. But it's not only about HTTP traffic, it's basically about everything I'd like to: other TCP ports, even UDP, etc. It must be transparent to the application, e.g. they shouldn't be aware of this. All their requests just appear as being from the server and the tunnel between them takes care about the packets. I'm aware of e.g. Putty and forwarding individual ports or using it as a socks proxy, however not many applications to support this and the support in windows itself looks non-existent to me. I might add it should be something "reasonable" easy to set up. I've heard about PPTP but I'm unsure about it's security implications (by design). Should I go for VPN? There seem to be two common solutions for Linux (OpenSwan and StrongSwan), why would I pick the one over the other? I also fear that setting up a VPN might be quite complex, OTOH maybe it's the only sane way to do the things right? Or is OpenVPN sufficient? I'm seeking for open (source) solutions, what other options to I have or which direction should I head to?

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• Error when connecting to hello world yesod example on Windows 8

  - by reltone

  I start the executable (after building it with cabal) and it says "Application launched, listening on port 3000." Next I connect to it with my web browser and the console says "threadWaitRead requires -threaded on Windows, or use System.IO.hWaitForInput." The web browser never connects. Not sure what this is actually recommending I do to resolve the problem. {-# LANGUAGE TypeFamilies, QuasiQuotes, MultiParamTypeClasses, TemplateHaskell, OverloadedStrings #-} import Yesod data HelloWorld = HelloWorld mkYesod "HelloWorld" [parseRoutes| / HomeR GET |] instance Yesod HelloWorld getHomeR :: Handler RepHtml getHomeR = defaultLayout [whamlet|Hello World!|] main :: IO () main = warpDebug 3000 HelloWorld

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• joomla site not run exactly in root server.

  - by sabuj

  when i run joomla in localhost, it works fine... But when i run it in the root server it output the bellow result:: 404 Not Found The server can not find the requested page: http://173.236.31.34/~interair/interaircon/www.interaircon.com/index.html (port 80) But if i give the link with index.php then output correctly:: Say - http://173.236.31.34/~interair/interaircon/index.php i want a solution about this problem. It's new kind of problem for me.

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• ubuntu 12.04 kvm virtual server network setup, can't get the machine to be connectable

  - by xyious

  I have worked on my Ubuntu Server host for weeks now and I just can not manage to get the virtual machines into the network.... here's what I need to do: I need to be able to create virtual machines that have IP addresses that can be reached from the outside (192.168 network). I need to be able to connect to the virtual machines through ssh, ftp, http and preferably https, anything else doesn't matter that much. So far everything seems simple enough and I have a lot of leeway in terms of IP address range and server/client configuration. I have the option of taking part of a /24 net as most IPs aren't used, and if it's absolutely necessary I have the option of creating a new /24 subnet. Also have the option of reformatting and reinstalling OS on the host and recreating the virtual machines as nothing has been done other than trying to get virtual machines to work. I would prefer if the virtual machines were just part of the normal network which would be 192.168.5.0/24. The host machine has 2 network cards so I don't even necessarily need the Host to be connectable in the same /24 network. I have tried (I think) just about everything from about 5 different tutorials on bridging (giving br0 the same IP that eth0 used to have (Host is able to connect to VM and vice versa, VM doesn't have outside network access), having eth0 set up like it always was and having br0 have a different IP (same as above), NAT with port forwarding (which I would have preferred not to use but will if it works), turning off one of the hosts network cards and just using one of them, different subnets.... etc. I do know my way around iptables fairly well.... Host is 64bit Ubuntu Server 12.04, using libvirt/kvm. edits: Local network is 192.168.5.0/24, host has static ip 192.168.5.254, GW .5.1 which is also nameserver. We have a second Local network at 192.168.10.0/24 with .10.1 GW, but both hosts and VMs were supposed to go into the .5 subnet. The .10 subnet isn't required, but it wouldn't be horrible if the Host were only accessible in the .10 subnet.

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• Monad in plain English? (For the OOP programmer with no FP background)

  - by fig-gnuton

  In terms that an OOP programmer would understand (without any functional programming background), what is a monad? What problem does it solve and what are the most common places it's used? EDIT: To clarify the kind of understanding I was looking for, let's say you were converting an FP application that had monads into an OOP application. What would you do to port the responsibilities of the monads into the OOP app?

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• HOW TO FIX "The requested URL /phpMyAdmin was not found on this server"

  - by user1392840

  I have install apache,php and mysql on Mac 10.8.1. After this, in my web brower i type this, it give the error message Not Found The requested URL /News-2012-Academy-Awards-53.html was not found on this server. Apache/2.2.22 (Unix) mod_fastcgi/2.4.6 mod_ssl/2.2.22 OpenSSL/0.9.8r DAV/2 PHP/5.3.13 with Suhosin-Patch mod_wsgi/3.3 Python/2.7.2 Server at clontarf.girlsacademy.com.au Port 80" Please help me to solve it.

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