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• Looking for someone to point me in the right direction. I want to learn how to use hosted servers

  - by Leisure

  TL;DR: I want a Java program to run on a server, I want the server to forward a particular port from external to internal IP, I want store a few files on the server. Guides please. So I made a hack job Java program that acts as a server for my android application. It stores data in text files and HTML files, uploads them via FTP to my webhost, and manages socket connections (using port forwarding) with any phones connected. Right now I'm running it on NetBeans on my home computer. I know that it will probably slow down or crash once about 50 phones are connected at once. Is there any way I can run this program on a server with a high bandwidth? Can someone please find me a guide for that? I'm noob and don't know where to start looking. I seriously don't know anything about renting or using servers - I need a nice guide, and recommendations. My requirements for the server: Can handle about 2k socket connections at once Can run my Java code and store my txt files Can give me a port and an IP address so TCP/IP clients can be connected My budget: $50 CAD per month. Please someone set my ship sailing in the right direction, I really don't know where to look for resources.

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• How to forward a [sub]domain to another address? (not just HTTP!)

  - by M. Joanis

  Hello everyone! I have bought domain1.me from GoDaddy... (yeah, I know... but ME domain registrars seemed quite hard to find...) I'm mainly hosted at 1and1. I have registered subdomain sub1.domain1.me and redirected it to my 1and1 account. That should eventually work fine. Then I have registered sub2.domain1.me and tried to redirect it to a box at home. It works #1 when for HTTP. I can access SSH server without any problem when I use the IP directly, but not when using sub2.domain1.me:22. The way I see this, they (GoDaddy) are redirecting only on port 80 (why would they?). I have looked at 1and1 forwarding too and they ask for an URI starting with http so I guess that's the same behavior. What are you guys doing to be able to host stuff from home (HTTP, SSH, SVN, Git, etc. etc.) using a domain name to prevent everyone to have to remember your IP??? Heeeelp! Thanks!

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• links for 2010-06-15

  - by Bob Rhubart

  You're invited : Oracle Solaris Day, June 28th, Herzliya - Openomics How open innovation and technology adoption translates to business value, with stories from our developer support work at Sun ISV Engineering (tags: ping.fm) Edwin Biemond: Enriching and Forwarding your data with the Spring Component in SOA Suite 11g PS2 Oracle ACE Edwin Biemond describes "how easy it is to use Java in the Spring Component, how you can wire this Component to other Components, Services or References adapters." (tags: oracleace soa oracle middleware) Venkatakrishnan J: Oracle BI EE 10.1.3.4.1 - Currency Conversions & FX Translations &ndash; Part 1 "As part of the BI EE setup we need to ensure that such local currency transactions are converted to a common reporting currency," says Rittman Mead's Venkatakrishnan. (tags: oracle businessintelligence) Richard Veryard: Ecosystem SOA 2 "What are the problems of large complex sociotechnical systems?" asks Rich Veryard?  "How far do SOA and enterprise architecture help to address this problem space, and what else might we need?" (tags: soa entarch) Khanderao Kand: Oracle BPM Suite .. unified engine.. "This Suite is based on unified process foundation of Oracle Business Process Management Suite 11g . It has the same engine that executes both BPEL and BPMN processes, " says Kand.  (tags: bpel soa bpm oracle) Webcast: Revealing the Secrets that will Re-Energize your Services Strategies  Oracle's Peter Heller and Robert Covington discuss how to overcome the many unforeseen technical and organizational barriers in order to meet the high expectations of dynamic business requirements in this live webcast, July 14, 2010, 9:00 AM PDT / Noon EDT (tags: entarch oracle webcast)

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• Cannot Enter Repro Admin Web Interface at Port 5080

  - by aqua

  I have followed the instructions on this website www.rtcquickstart.org to set up my firewall, DNS settings, TLS, and have installed the TURN server and repro proxy as instructed, and have restarted repro. However, I am not able to access the web interface of repro on port 5080, either at localhost:5080 / 127.0.0.1:5080 or at the server's IP address: IPADDRESS:5080 (I have set the server's IP for binding in repro.config). I get the browser error message: 'Unable to connect to server' whenever trying to connect to the web interface via port 5080. I initially had Apache2 installed, which loaded pages correctly at port 80 / address root, and when checked it 'listened' at port 5080 after it was configured in /etc/apache2/ports.conf, however the repro web interface still did not work at port 5080. I have tried uninstalling Apache2 in case that was conflicting with repro's web server, but the problem persists, and testing port 5080 now shows that nothing is 'listening' on port 5080. I have tried reinstalling / purging repro but it has not helped. My router is correctly set to allow all ports; port 5080 is open and forwarding correctly. I can connect to the internet and ping all websites through the server and everything else is working correctly. I would be gateful if anyone could offer advice on how to solve this problem.

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• Set UFW before.rules without restart of server

  - by enedene

  I use UFW on my Ubuntu server. Unfortunately there are no rules in UFW to port forward to another machine. What you need to do is edit /etc/before.rules and put routing commands there, for example # nat Table rules *nat :POSTROUTING ACCEPT [0:0] # Forward traffic from eth0 through eth1. -A POSTROUTING -s 192.168.0.0/24 -o eth1 -j MASQUERADE -A PREROUTING -i eth1 -p tcp --dport 80 -j DNAT --to 192.168.0.200:80 -A PREROUTING -i eth1 -p udp --dport 10090 -j DNAT --to 192.168.0.202:22 -A PREROUTING -i eth1 -p tcp --dport 10090 -j DNAT --to 192.168.0.202:22 -A PREROUTING -i eth1 -p tcp --dport 443 -j DNAT --to 192.168.0.200:443 -A PREROUTING -i eth1 -p udp --dport 443 -j DNAT --to 192.168.0.200:443 -A PREROUTING -i eth1 -p tcp --dport 57626 -j DNAT --to 192.168.0.2:57626 -A PREROUTING -i eth1 -p udp --dport 57626 -j DNAT --to 192.168.0.2:57626 -A PREROUTING -i eth1 -p tcp --dport 3306 -j DNAT --to 192.168.0.200:3306 -A PREROUTING -i eth1 -p udp --dport 3306 -j DNAT --to 192.168.0.200:3306 COMMIT My problem is that I can't find a way to run new forwarding rules without restarting the server, which I hate to do very much. So please help me, is there a way?

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• A simple example of movement prediction

  - by Daniel

  I've seen lots of examples of theory about the reason for client-side prediction, but I'm having a hard time converting it into code. I was wondering if someone knows of some specific examples that share some of the code, or can share their knowledge to shed some light into my situation. I'm trying to run some tests to get a the movement going (smoothly) between multiple clients. I'm using mouse input to initiate movement. I'm using AS3 and C# on a local Player.IO server. Right now I'm trying to get the Client side working, as I'm only forwarding position info with the client. I have 2 timers, one is an onEnterFrame and the other is a 100ms Timer, and one on mouseClick listener. When I click anywhere with a mouse, I update my player class to give it a destination point On every enterFrame Event for the player, it moves towards the destination point At every 100ms it sends a message to the server with the position of where it should be in a 100ms. The distance traveled is calculated by taking the distance (in Pixels) that the player can travel in one second, and dividing it by the framerate for the onEnterFrame handler, and by the update frequency (1/0.100s) for the server update. For the other Players, the location is interpolated and animated on every frame based on the new location. Is this the right way of doing it?

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• Ubuntu Server 12.04 as a router. Problem with DNS?? Or Routing table?

  - by Lorenzo

  I have a virtualbox lab made up of 4 Windows 2008 R2 servers (DC/DNS,SQL,SHAREPOINT, EXCHANGE) that are configured with static ip addresses with NIC's attached to Internal network. Everything works. I had the requirement to execute some tests that also access external services available on the internet. To keep things clean and similar to the production environment I have installed another VM, with Ubuntu Server 12.04 64 bit and configured (I hope) to work as a router like described on this post. This VM has two network interfaces: first is Bridged with the host and is used as a WAN connection and the other one attached in the Internal Network with its own static IP address on the internal network subnet. But actually the Windows servers does not connect to the internet while the unix one connects. I did a route command. this is the result: Kernel IP Routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.69.121.1 0.0.0.0 UG 100 0 0 eth0 10.69.121.0 * 255.255.255.0 U 0 0 0 eth0 192.168.83.0 * 255.255.255.0 U 0 0 0 eth1 Can somebody help me with this configuration? :) Thanks! Addendum: I forgot to mention that one of the windows server hosts a DNS service for which I should maybe configure a forwarding server but I do not exactly know which server to forward on... :(

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• Strange remoting connection problem

  - by Voyager Systems

  In trying to configure a .NET remoting setup over TCP, I've been having problems accepting outside connections (connections from any computer not on my LAN). I did some investigation and hit netstat -a as soon as my friend started to connect. Here's what I saw: TCP 0.0.0.0:2594 Taylor-PC:0 LISTENING ... TCP 192.168.1.102:2594 24-155-7-16:63588 ESTABLISHED TCP 192.168.1.102:62488 192.168.0.100:1554 SYN_SENT Now here's the weird part: 24.155.7.16 is my friend's IP (modified) and it says the connection is established. But the connection hangs until it times out. I then found out that 192.168.0.100 is his local address on his network. Something screwy's going on somewhere. My server and client are both TCPChannels, the latter initialized 'new TCPChannel( 0 ).' Localhost connections work when I run a client on the same machine as the server, but I can't accept remote connections. There is no port forwarding or firewall issue. Thanks for the help

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• What is the correct Qt idiom for exposing signals/slots of contained widgets?

  - by Tyler McHenry

  Suppose I have a MyWidget which contains a MySubWidget, e.g. a custom widget that contains a text field or something. I want other classes to be able to connect to signals and slots exposed by the contained MySubWidget instance. Is the conventional way to do this: Expose a pointer to the MySubWidget instance through a subWidget() method in MyWidget Duplicate the signals and slots of MySubWidget in the MyWidget class and write "forwarding" code Something else? Choice 1 seems like the least code, but it also sort of breaks encapsulation, since now other classes know what the contained widgets of MyWidget are and might become dependent on their functionality. Choice 2 seems like it keeps encapsulation, but it's a lot of seemingly redundant and potentially convoluted code that kind of messes up the elegance of the whole signals and slots system. What is normally done in this situation?

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• How to remotely connect to jmx on tomcat using ssh tunnelling and not break ehcache...

  - by Unsavory

  I've followed the instructions in the following link to create my own RMI registry and jmx server on a single port inside tomcat. According to the comments, I need to set -Djava.rmi.server.hostname=localhost. Once I do that, I can indeed connect to my server via jconsole using ssh port forwarding. http://blogs.sun.com/jmxetc/entry/connecting_through_firewall_using_jmx However, I've found it has the very bad side affect of breaking our ehcache replication which uses RMI. It fails complaining that it cannot bootstrap from remote peer localhost. I'm guessing because the peers all have their rmi server hostname set to localhost from setting -Djava.rmi.server.hostname=localhost. Does anyone have a possible workaround to this problem?

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• Intercept page request behind firewall return altered content with php and apache

  - by Matthew

  I'm providing free wifi service and need an ad to be added to all page requests. Currently I have a router forwarding all http requests to an apache server, which redirects all requests to an index.php page. The index.php page reads the request, fetches the content from the appropriate site, and edits the content to include the ad. The problem is that all images and css files etc. cannot be accessed, because when the browser tries to get the image <img src="site.com/image.jpg"> it's just redirected back to the index.php. I can change settings for the router (running dd-wrt) and the webserver (apache2 and php 5.2). Is there a solution that allows content to be edited before returning to the client, and allows css and images to be accessed?

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• Tiny, very-basic outgoing MTA?

  - by Xeoncross

  I am looking for a very tiny Mail-Transfer-Agent (MTA) for my smaller VPS which only need to send emails for new accounts or notifications. Originally, I used PHP sockets and wrote a 4kb STMP class to connect to google SMTP and send the emails - but I would like to be free of the 500 emails a day (or whatever) limit they have. On larger VPS I can run Postfix - but it takes about 50MB which makes it too big for a 128/256MB VPS. So are there any very tiny MTA's out there - or is there a rundown of the protocol of sending email (I guess it works by forwarding the mail through other servers till it reaches the correct end mail server right?) so I could build a smaller bash or PHP script for this outgoing stuff?

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• libssh2 port forward

  - by Evan D

  In extension of this question http://stackoverflow.com/questions/1580750/example-code-of-libssh2-being-used-for-port-forwarding I was wondering if there's an "easier" way to connect to the locally binded addr:port. From the link: you bind a remote port and list it locally, you accept incoming data from the port and send it to another socket (namely the local addr:port), after which I'd like to connect to the local addr:port. Is there a way to skip the "send it to another" step and direct the data directly for my "connect to localhost" ? There are two parts to why I want this, first, it seems excessive, and in the spirit of piping, I wouldn't be surprised if it was possible. Second, since I'm trying to connect to a localhost'ed bound port forward, all code is in the same thread, making a continiously getting data-sending data, and polling the sending data from another socket, a bit tricky. Thanks in advance, Evan

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• RequestDispatcher forward between Tomcat instances

  - by MontyBongo

  I have a scenario where I have single entry point Servlet and further Servlets that requests are forwarded to that undertake heavy processing. I am looking at options to distribute this load and I would like to know if it is possible using Tomcat or another platform to forward requests between Servlets sitting on different servers using a cluster type configuration or similar. I have found some documentation on clustering Servlets and Tomcat but none indicate if Servlet request forwarding is possible from what I can see. http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/web-tier/web-tier5.html http://tomcat.apache.org/tomcat-5.5-doc/cluster-howto.html

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• twitter's officially supported android application

  - by sorens

  i am developing an application for android and would like for my users to be able to post some information from my application to their twitter feed. i know how to make this work by building a VIEW intent and forwarding the user to the android built-in web browser (thanks to stack overflow!) However, now that there is an official Twitter application, I would like to be able to use the twitter applications activity (if it is installed) to make the post. However, I can not find any developer documentation on what the Twitter Intent for Android is called. Can someone provide a short snippet of sample code that includes that text of the Intent to use?

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• Distributing APNS providers

  - by Sam

  I'm writing a business-focused iPhone app which includes a self-hosted server component. I'd like to include push notification functionality in the server; reading through the programming guide it looks as if this would involve either: Distributing the provider certificate with the server component - this doesn't sound like a terribly good idea (even if Apple permits it?) Hosting a shared notification provider and forwarding notifications to APNS from the servers. For an ongoing, high-availability service, this is likely to require including a subscription pricing component, which I would prefer to avoid. Require customers to apply for their own provider certificate. However, it's not clear whether multiple organisations are allowed to apply for provider certificates with a single bundle ID, and it would significantly increase the barrier to adoption. APNS looks to me as if it's specifically geared for centrally hosted services. Is anyone distributing self-hosted notification providers? Are there any other options?

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• Apache: Redirect blog.foobar.com to www.foobar.com

  - by Steve Griff

  Hello, I have a site at blog.foobar.com that I have closed down, and I want any page requested there to be forwarded to www.foobar.com I want my VirtualHost config to do this for me. I currently have the following lines that does nearly what I want but not exactly: redirect permanent / http://www.foobar.com Unfortunately what happens is that if I ask for blog.foobar.com instead of forwarding to www.foobar.com it serves the pages on blog.foobar.com instead. Is there a way doing this in the VirtualHost config or should I use a .htaccess file instead? Regards Steve

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• How do you redirect https to http

  - by mauriciopastrana

  that is, the opposite of what (seemingly) everyone teaches. I have a server on https for which I paid an SSL cert for and a mirror for which I haven't and keep around for just for emergencies so it doesn't merit getting a cert for. On my client's desktops I have SOME shortcuts which point to http://production_server and https://productionserver (both work), however; I know that if my prod. server goes down, then DNS forwarding kicks in and those clients which have https on their shortcut will be staring at https://mirrorserver (Which doesnt work) and a big fat IE7 red screen of uneasyness for my company. Unfortunately, I can't just switch this around at the client level. These users are very computer illiterate: and are very likely to freak out from seeing https "insecurity" errors (specially the way FFX3 and IE7 handle it nowadays: FULL STOP, kinda thankfully, but not helping me here LOL). It's very easy to find apache solutions for http-https redirection, but for the life of me I can't do the opposite. Ideas? Cheers, /mp

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• iPhone 4.0 SDK UIWebView crashes with DOMHTMLElement error..

  - by hytgbn

  My app have an UIWebView and I open a twitter oauth page with it. when I open oauth page , it works well. after I sign-in, it redirects to another page which have PIN code. and It crashes down with logs below. Is it a bug in 4.0 SDK? 2010-06-14 22:55:11.159 AllFx[1435:2003] -[DOMHTMLElement setHref:]: unrecognized selector sent to instance 0x74e4040 2010-06-14 22:55:11.162 AllFx[1435:2003] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[DOMHTMLElement setHref:]: unrecognized selector sent to instance 0x74e4040' *** Call stack at first throw: ( 0 CoreFoundation 0x02b6c919 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x02cba5de objc_exception_throw + 47 2 CoreFoundation 0x02b6e42b -[NSObject(NSObject) doesNotRecognizeSelector:] + 187 3 CoreFoundation 0x02ade116 ___forwarding___ + 966 4 CoreFoundation 0x02addcd2 _CF_forwarding_prep_0 + 50 5 DataDetectorsUI 0x0bde8ac4 -[WebTextIterator(DDExtensions) dd_doUrlificationForQuery:forResults:document:DOMWasModified:URLificationBlock:] + 1731 6 DataDetectorsUI 0x0bde2f09 -[DDOperation _doURLificationOnDocument] + 341 7 DataDetectorsUI 0x0bddff9c -[DDDetectionController _doURLificationOnWebThreadAndRelease:] + 563 8 CoreFoundation 0x02add42d __invoking___ + 29 9 CoreFoundation 0x02add301 -[NSInvocation invoke] + 145 10 WebCore 0x039fa2b3 _ZL15HandleAPISourcePv + 147 11 CoreFoundation 0x02b4dd7f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15 12 CoreFoundation 0x02aac2cb __CFRunLoopDoSources0 + 571 13 CoreFoundation 0x02aab7c6 __CFRunLoopRun + 470 14 CoreFoundation 0x02aab280 CFRunLoopRunSpecific + 208 15 CoreFoundation 0x02aab1a1 CFRunLoopRunInMode + 97 16 WebCore 0x039943c3 _ZL12RunWebThreadPv + 483 17 libSystem.B.dylib 0x98552a19 _pthread_start + 345 18 libSystem.B.dylib 0x9855289e thread_start + 34 ) terminate called after throwing an instance of 'NSException'

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• Sending Outlook 2007 Meeting Request with HTML Body

  - by Rick Make

  I know that Outlook.ApointmentItem.Body only supports plain and rich text formats. But my requirement is to send the Appointment with a Html body. Currently I am saving the ApointmentItem as an ics file and attaching it to the e-mail. This works but the outcome that I am looking for is that it is received as a meeting request. I.e. I receive this e-mail I can see the body and have the option to respond to the meeting request. I tried forwarding the AppointmentItem as a vCal but that does not work either. I am I headed in the right direction? Thanks

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• Can squid forward DNS queries to a DNS server?

  - by pravin

  This might something be completely impossible to achieve, but before I give it a shot thought I might get some advice from a fellow geek. Would squid proxy DNS queries as well? I would like to forward DNS queries to go through squid and use squid's DNS error page, of course by customizing it. I see the DNS queries are hitting my squid box on UDP port 53. I can setup a port forwarding so that all these queries get sent to squid's port 3128. But would squid understand its a DNS query and forward those queries to the dns server set in squid.conf? I hope my question is clear but please shout up and I would be glad to give you some more info if needed. Thanks guys!

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• spring mvc simpleformcontroller - how to stop execution when exception thrown

  - by alan t

  Hi I am using simpleformcontroller and get exception thrown in my OnSubmit method. This does not seem to stop the simpleformcontroler process as it redisplays my form. I can see from log4j output that the exception is getting caught and forwarding to my error page as expected. I can also tell the onSubmit method does not continue after the exception. Which is all good. But i do not see the error page as the simpleformcontroller starts up again and goes through processing for a new form (i can see in log4j ouput Spring log statements 'Displaying New form', 'Creating new command of class ..'. The normal form page is then displayed again. So the problem is that the exception does not seem to terminate the SimpleFormController, it carries on to display the form again. Anyone help? Thanks Alan

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• NSNumber >= 13 won't retain. Everything else will.

  - by jkap

  The code I'm currently working on requires adding an NSNumber object to an array. All of the NSNumbers with value 0-12 are added fine, but 13 onward causes a EXC_BAD_ACCESS. I turned on NSZombieEnabled and am now getting *** -[CFNumber retain]: message sent to deallocated instance 0x3c78420. Here's the call stack: #0 0x01eac3a7 in ___forwarding___ #1 0x01e886c2 in __forwarding_prep_0___ #2 0x01e3f988 in CFRetain #3 0x01e4b586 in _CFArrayReplaceValues #4 0x0002a2f9 in -[NSCFArray insertObject:atIndex:] #5 0x0002a274 in -[NSCFArray addObject:] #6 0x00010a3b in -[Faves addObject:] at Faves.m:24 #7 0x000062ff in -[ShowController processFave] at ShowController.m:458 #8 0x002af405 in -[UIApplication sendAction:to:from:forEvent:] #9 0x00312b4e in -[UIControl sendAction:to:forEvent:] #10 0x00314d6f in -[UIControl(Internal) _sendActionsForEvents:withEvent:] #11 0x00313abb in -[UIControl touchesEnded:withEvent:] #12 0x002c8ddf in -[UIWindow _sendTouchesForEvent:] #13 0x002b27c8 in -[UIApplication sendEvent:] #14 0x002b9061 in _UIApplicationHandleEvent #15 0x02566d59 in PurpleEventCallback #16 0x01e83b80 in CFRunLoopRunSpecific #17 0x01e82c48 in CFRunLoopRunInMode #18 0x02565615 in GSEventRunModal #19 0x025656da in GSEventRun #20 0x002b9faf in UIApplicationMain #21 0x00002498 in main at main.m:14 If it wasn't isolated to NSNumbers of a certain range, I'd assume I screwed something up with my memory management, but I've just got no idea. Any ideas? Thanks, Josh

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• phing FtpDeploy "connection to host failed"

  - by Jorre

  I'm getting the following error when trying to deploy a ZIP file to a remote FTP server. I tried connecting to the server using an FTP client (filezilla) and all goes well. Also, when connecting to a public ftp like ftp.belnet.be connections work fine. I'm trying to send the file to a VSFTPD server behind a router using port forwarding. Again, this works fine from any location using Filezilla, phing is not connecting though... BUILD FAILED /deployment/build.xml:60:12: Could not connect to FTP server x.x.x.x on port 21: Connection to host failed Total time: 2 minutes 30.09 seconds

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• Stop an anchor from loading on javascript confirm

  - by Joseph Carrington

  I was under the impression that this was formed correctly, but here it is forwarding to the anchor href (clicking through? what should I call this?) whether or not the user selects cancel or okay. <script type="text/javascript"> function myconfirm(my_string) { var agree = confirm('Are you sure you want to remove ' + my_string + '?'); if(agree) { return true; } else { return false; } } </script> and the anchor <a href="example.com/?remove=yes" onclick="myconfirm('my_string')">My String</a>

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