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• Pycharm and Webstorm always on top unless minimized

  - by raoulcousins

  I'm running Windows 7. I have the following problem in both Webstorm 7 and Pycharm 3. I haven't found this problem in any other programs. I have not found any clues as to a solution on Google or in the settings of either program. When I run the programs not maximized and I click any other window to switch focus, the Webstorm (or Pycharm) window flashes, appearing to lose focus for a split second before, and it stays on top. This blocks any other window behind it from having focus, and is quite annoying.

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• ASP.NET Wizard control with Dynamic UserControls

  - by wjat777

  Hello everyone I'm trying to use the Wizard control as follows: 1 - In the first step (first screen) has a cheklistbox with several options 2 - For each option selected, will be created an extra step 3 - In some steps may be set up intermediate stages Me problem is that each step is a usercontrol. So if the first step I select option1 and option3, I should create two more steps with usercontrol1 and UserControl3 .... Someone already did something similar? I will try explain better the problem. I'll paste here, but I put a copy of the project in skydrive: http://cid-3d949f1661d00819.skydrive.live.com/self.aspx/C%5E3/WizardControl2.7z It is a very basic example of what I'm trying to do. The project has page.ASPX 1 and 3 usercontrol.ASCX (UC1, UC2 and UC3) Default.ASPX: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication2._Default" % Option1 Option2 Option3 Code Behind: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication2 { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Page_PreInit(object sender, EventArgs e) { LoadSteps(); } private void LoadSteps() { int count = Wizard1.WizardSteps.Count; for (int i = count - 1; i > 0; i--) { WizardStepBase step = Wizard1.WizardSteps[i]; if (step.StepType != WizardStepType.Start) Wizard1.WizardSteps.Remove(step); } string Activities=""; foreach (ListItem item in CheckBoxList1.Items) { if (item.Selected) { WizardStep step = new WizardStep {ID = "step_" + item.Value, Title = "step_" + item.Value}; UserControl uc=null; switch (item.Value) { case "1": uc=(UserControl)LoadControl("~/UC1.ascx"); break; case "2": uc=(UserControl)LoadControl("~/UC2.ascx"); break; case "3": uc=(UserControl)LoadControl("~/UC3.ascx"); break; } step.Controls.Add(uc); Wizard1.WizardSteps.Add(step); } } } protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e) { LoadSteps(); } } } Control UC1.ASCX to UC3.ASCX has the same code (as an example) usercontrol.ascx: <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="UC1.ascx.cs" Inherits="WebApplication2.UC1" % AutoPostBack="True" AutoPostBack="True" Code Behind: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication2 { public partial class UC1 : System.Web.UI.UserControl { protected void Page_Init(object sender, EventArgs e) { List list1 = new List { "Alice", "Bob", "Chris" }; List list2 = new List { "UN", "DEUX", "TROIS" }; DropDownList1.DataSource = list1; DropDownList2.DataSource = list2; DropDownList1.DataBind(); DropDownList2.DataBind(); } protected void Page_Load(object sender, EventArgs e) { if (IsPostBack) return; } protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { Label1.Text = DropDownList1.SelectedValue; } protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e) { Label2.Text = DropDownList2.SelectedValue; } } } You can see that the controls UserControls trigger events (they cause postbacks) The behavior of this project is a little different than I described in the first thread, but the problem is the same. After the second time "next" button, you will get an error. Thanks in advance William

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• How to calculate an angle from three points?

  - by HelloMoon

  Lets say you have this: P1 = (x=2, y=50) P2 = (x=9, y=40) P3 = (x=5, y=20) Assume that P1 is the center point of a circle. It is always the same. I want the angle that is made up by P2 and P3, or in other words the angle that is next to P1. The inner angle to be precise. It will be always a sharp angle, so less than -90 degrees. I thought: Man, that's simplest geometry maths. But I looked for a formula for like 6 hours now and people talk about most complicated NASA stuff like arcos and vector scalar product stuff. My head feels like in a fridge. Some math gurus here that think this is a simple problem? I think the programing language doesn't matter here but for those who think it does: java and objective-c. need that for both. haven't tagged it for these, though.

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• Networking Logs for MAC Addresses

  - by NetworkGuy

  I wanted to ask a multi-part question. Does Comcast Cable Internet services record MAC Addresses of the Router behind the cable modem. I know they record it for the modem itself. But is there a way for the Modem/Comcast to relay and keep logs of the MAC ID of the Router itself? Then does a windows operating system Log the MAC ID of the Router when its connected to it? If so where do I locate and purge this? Please let me know all areas where it is Logged within the operating system. Thank you!

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• Changes in gcc/persistence of optimization flags gcc/C

  - by gnometorule

  Just curious. Using gcc/gdb under Ubuntu 9.10. Reading a C book that also often gives the disassembly of the object file. When reading in January, my disassembly looks a lot like the book's; now, it's quite different - possibly more optimized (I notice some re-arrangements in the assembly code now that, at least in the files I checked, look optimized). I have used optimization options -O1 - -O3 for gcc between the first and second read, but not before the first. (1) Is the use of optimization options persistent, aka, if you use them once, you'll use them until switching them off? That would be weird (browsed man file and at least did not see anything to that sort). In the unlikely case that it is true, how do you switch them off? (2) Has gcc's assembly changed through any recent upgrade? (3) Does gcc sometimes produce (significantly) different assembly code although same compile options are chosen? Thanks much.

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• MASM StrCmp Undefined?

  - by Yvan JANSSENS

  Hi, If I try to assemble the following code, I get a A2006 error ( error A2006: undefined symbol : StrCmp). Here's my code: .386 .model flat,stdcall option casemap:none include \masm32\include\windows.inc include \masm32\include\kernel32.inc include \masm32\include\masm32.inc include \masm32\include\user32.inc includelib \masm32\lib\kernel32.lib includelib \masm32\lib\masm32.lib includelib \masm32\lib\stdlib.lib includelib \masm32\lib\user32.lib .data YvanSoftware db "(c) YvanSoftware - ALL RIGHTS RESERVED", 13 ,10 ,0 EnterYourName db "Please enter your name: ", 0 CRLF db 13,10,0 TheHolyMan db "Yvan", 0 Seriously db "Seriously? You're the MAN!", 13,10,0 LoserName db "What a loser name.", 13,10 .data? buffer db 100 dup(?) .code start: invoke StdOut,addr YvanSoftware invoke StdOut, addr EnterYourName invoke StdIn, addr buffer, 100 invoke StdOut, addr CRLF invoke StrCmp,addr buffer, addr TheHolyMan ;error fires here je HolyMan IfNotHolyMan: invoke StdOut, addr LoserName jmp EndIfHolyMan HolyMan: invoke StdOut, addr Seriously jmp EndIfHolyMan EndIfHolyMan: invoke ExitProcess,0 END start I'm a complete n00b at assembler, and I'm trying to learn it. ;) Yvan

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• Switched to xubuntu, unity theme wont go away

  - by Ethan

  I got fed up with unity and decided to switch to xubuntu, following the instructions on this thread. Almost everything went well, and I'm much happier with the system. but the window borders from the unity theme are still being used, overriding the xubuntu themes. I've uninstalled all the unity stuff that I can find. I have, however, kept compiz for some of its functionality. I note that if I disable the "Window Decoration" plugin the whole border disappears leaving nothing behind. I want to have normal xubuntu borders. (note that stuff like chromium that handles its own borders displays correctly) I'll gladly give more details, or upload screenshots. Just let me know what information would be helpful. Thanks, Ethan

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• What’s the password for my FileVault 2 boot volume?

  - by cbowns

  Apple’s support document for FileVault 2 (a.k.a. “full disk encryption” or “FDE”) has lots of information about enabling FDE and what it means for booting the machine. However, it doesn’t cover one very important thing I’m trying to do: mount the drive in the Recovery HD environment to reinstall OS X on it. The Recovery HD environment asks me for the volume passphrase so it can mount my drive and try to install OS X onto it. If this were an external drive which I’d manually enabled FDE on with diskutil, or an external Time Machine volume, I’d know it because it makes you pick one (just like a regular login password), but FileVault 2 never asked me for a volume passphrase (I assume it selects one behind the scenes). I’ve tried my main user’s password, but that doesn’t work, and neither does the recovery key set for the volume. Keychain Access doesn’t have anything that I could find. How do I unlock this volume?

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• setup Zyxel USG 20W as L2TP VPN Server

  - by Massimo

  I've a Zywall USG 20W (wireless disabled) behind a router supplied by the ISP. All ports (both TCP and UDP) on the ISP router are forwarded to the 20W. I'm trying to configure an L2TP VPN to be used by Windows Xp / 7 with Microsoft native client. This was working before with a different firewall, so I'm pretty sure that all the required packets are flowing to the 20W. I followed a tutorial from the italian Zyxel Website, but I cannot get the VPN to work. Always cannot pass phase 2, and I see the following on the log: [ID]: Tunnel [Default_L2TP_VPN_Connection] Phase 2 local policy mismatch Phase 1 goes fine. In Windows the error is always 788. This happens regardless the proposals I set in the phase 1 and 2 setting. What should I check ? Is there any way to get more detailed diagnostic info (policy mismatch is too generic) ? Thanks a lot to whom may help. Massimo.

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• dns service on OS X Snow Leopard Server

  - by Sorin Buturugeanu

  Hello all, I have a Mac Mini (1.83GHz, 1.5 RAM) with a fresh install of OS X Snow Leopard Server and I want to use it for DNS and web hosting. What I have done so far is to go to the domain registrar and configure a new nameserver (ns.domain.tld) to point to my static IP. This Mac Mini is behind a DI-524 router and I have forwarded ports 53 and 80 to the Mini. I have also added the domain name to the DNS configuration pannel (as in the attachment), but intodns.com gives the following error (among others, and obviously the site is not working): "Mismatched NS records WARNING: One or more of your nameservers did not return any of your NS records." I don't know where to go from here .. Thank you to anyone willing to take the time to give me a hint!! seems that I can't post images but here's the link: http://i.imgur.com/zWI7Y.png

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• How to run batched WCF service calls in Silverlight BackgroundWorker

  - by Simon

  Is there any existing plumbing to run WCF calls in batches in a BackgroundWorker? Obviously since all Silverlight WCF calls are async - if I run them all in a backgroundworker they will all return instantly. I just don't want to implement a nasty hack if theres a nice way to run service calls and collect the results. Doesnt matter what order they are done in All operations are independent I'd like to have no more than 5 items running at once Edit: i've also noticed (when using Fiddler) that no more than about 7 calls are able to be sent at any one time. Even when running out-of-browser this limit applies. Is this due to my default browser settings - or configurable also. obviously its a poor man's solution (and not suitable for what i want) but something I'll probably need to take account of to make sure the rest of my app remains responsive if i'm running this as a background task and don't want it using up all my connections.

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• Is HAProxy able to pass SSL requests to Apache + mod_ssl?

  - by Josh Smeaton

  Most of the documentation I've read regarding HAProxy and SSL seems to suggest that SSL must be handled before it reaches HAProxy. Most solutions focus on using stunnel, and a few suggest Apache + mod_ssl infront of HAProxy. Our problem though, is that we use Apache as a reverse proxy to a number of other sites which use their own certificates. Ideally what we'd like, is for HAProxy to pass all SSL traffic to Apache, and let Apache handle either the SSL or reverse proxying. Our current setup: Apache Reverse Proxy -> Apache + mod_ssl -> Application What I'd like to do: HAProxy -> Apache Reverse Proxy -> Apache + mod_ssl -> Application Is it possible to do this? Is HAProxy capable of forwarding SSL traffic to be handled by a server BEHIND it?

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• Chrome: Saved username/password filled in incognito mode

  - by Wouter Coekaerts

  If I open an incognito window in Google Chrome and go to a webpage where Chrome has a saved username and password from (for example the login form on http://gmail.com), I see that my username and password are automatically filled in. Does that mean that I am not really incognito? Can the website see my username even if I don't explicitly log in? Or is there some mechanism behind the scenes that prevents the webpage from grabbing auto-filled values unless I actually log in? Clarification: Stored usernames (and passwords) are a lot like cookies: your unique identifier linked to a certain site, stored locally in your browser, available to the site when you open it. When you go incognito you ask your browser not to identify you to the sites you visit. It does that by (among other things) not exposing its cookies. Exposing the stored username in this mode does not make sense to me (but maybe I'm missing something...).

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• TeamViewer cannot connect

  - by Cetin Sert

  Last week I decided to use TeamViewer VPN to administer software on a server behind a firewall using RemoteDesktop. It was easy to configure to start-up with the system and make VPN available on the other side but now it fails to connect at the step shown below: The remote machine is running Windows Server 2008 R2. Is there a native way to circumvent the external firewall using a server role or feature to make Windows Server do the VPN work? Do people have better / more reliable experiences with other products such as Hamachi? The requirements are as follows: Start at remote system start-up time Make VPN connections to the remote machine possible

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• What are Subnet Mask and Gateway exactly

  - by Saif Bechan

  I have a dedicated server with multiple IP adresses. I run them on Plesk but some of the names are confusing me. One ip has a subnet mask of 225.225.225.192, another has 225.225.225.0. What does this mean and what happens if i change that. Another thing i got a gateway. What is that and when will that come in handy. Another thing I see sometimes behind the ip's is /number. For example: 200.20.20.20/24 200.20.20.20/16 200.20.20.20/8 What will these numbers say.

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• OSX pdf-kit vs Linux poppler or pdf/x

  - by Tahnoon Pasha

  I keep reading and hearing that the reason that there is no good pdf editing software for Linux is that the libraries are not as well developed. That is why there is no equivalent for Skim or Preview in Linux. I had a look a the pdf-kit documentation and the poppler documentation and they looked very similar to my admittedly non-technical view. Could someone explain to me why the OSX libraries (eg) are so much easier to write projects like Skim in than the linux ones. I'm not sure if the same applies to OSX projects to NVAlt, but it seems to be a common theme - I'd just like to understand what is behind the thesis that OSX is easier to code these projects in, and what would be involved in changing it. (I'm not disputing the value of Okular or Evince and the like, just noting that they don't have the richness of functionality of Skim, Preview or even things like Goodreader on the Ipad).

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• VMWare ESX Updates - Which to Apply?

  - by Aaron Alton

  Wondering what more experienced ESX admins typically do... I just brought our ESX hosts up to 3.5 Update 5 (Yes, I know we're behind still). I then applied the "Critical Host Updates" baseline in VMWare update manager, and found that we're still short on 14 "critical updates". My question is, do most people go ahead and apply any update flagged as critical, or do they evaluate each update one-by-one to determine whether or not the issue that has been addressed is likely to affect them. In the SQL Server world (my alma mater, so to speak), we regularly apply service packs, and sometimes cumulative updates, but we only apply hotfixes when the issue that they are targeted towards affects us. Does the same logic hold fast in VMWare land?

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• DNS Server and Private HTTP / SOCKS Proxy

  - by DucDigital

  Hi every one, this is just a small hacking attemp to our router. I'm trying to setup a small DNS and forward webpages through proxy behind the scene. I've successfully implement the DNS server that will do the resolving or anything involved in address resolve. But is there anyway I can forward the user using DNS to a proxy instead of request directly to the server? Are there any software/opensource that I can use? I notice on paid wireless, they can provide a login page if user is not login yet, i think this is a way of implementing proxy. Also the hardware is very basic with linksys and netgear router which connect directly to the internet. It's a basic LAN

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• DNS Server and Private HTTP / SOCKS Proxy

  - by DucDigital

  Hi every one, this is just a small hacking attemp to our router. I'm trying to setup a small DNS and forward webpages through proxy behind the scene. I've successfully implement the DNS server that will do the resolving or anything involved in address resolve. But is there anyway I can forward the user using DNS to a proxy instead of request directly to the server? Are there any software/opensource that I can use? I notice on paid wireless, they can provide a login page if user is not login yet, i think this is a way of implementing proxy. Also the hardware is very basic with linksys and netgear router which connect directly to the internet. It's a basic LAN

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• TwoWay Binding With ItemsControl

  - by Andrew

  I'm trying to write a user control that has an ItemsControl, the ItemsTemplate of which contains a TextBox that will allow for TwoWay binding. However, I must be making a mistake somewhere in my code, because the binding only appears to work as if Mode=OneWay. This is a pretty simplified excerpt from my project, but it still contains the problem: <UserControl x:Class="ItemsControlTest.UserControl1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="300" Width="300"> <Grid> <StackPanel> <ItemsControl ItemsSource="{Binding Path=.}" x:Name="myItemsControl"> <ItemsControl.ItemTemplate> <DataTemplate> <TextBox Text="{Binding Mode=TwoWay, UpdateSourceTrigger=LostFocus, Path=.}" /> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> <Button Click="Button_Click" Content="Click Here To Change Focus From ItemsControl" /> </StackPanel> </Grid> </UserControl> Here's the code behind for the above control: using System; using System.Windows; using System.Windows.Controls; using System.Collections.ObjectModel; namespace ItemsControlTest { /// <summary> /// Interaction logic for UserControl1.xaml /// </summary> public partial class UserControl1 : UserControl { public ObservableCollection<string> MyCollection { get { return (ObservableCollection<string>)GetValue(MyCollectionProperty); } set { SetValue(MyCollectionProperty, value); } } // Using a DependencyProperty as the backing store for MyCollection. This enables animation, styling, binding, etc... public static readonly DependencyProperty MyCollectionProperty = DependencyProperty.Register("MyCollection", typeof(ObservableCollection<string>), typeof(UserControl1), new UIPropertyMetadata(new ObservableCollection<string>())); public UserControl1() { for (int i = 0; i < 6; i++) MyCollection.Add("String " + i.ToString()); InitializeComponent(); myItemsControl.DataContext = this.MyCollection; } private void Button_Click(object sender, RoutedEventArgs e) { // Insert a string after the third element of MyCollection MyCollection.Insert(3, "Inserted Item"); // Display contents of MyCollection in a MessageBox string str = ""; foreach (string s in MyCollection) str += s + Environment.NewLine; MessageBox.Show(str); } } } And finally, here's the xaml for the main window: <Window x:Class="ItemsControlTest.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:src="clr-namespace:ItemsControlTest" Title="Window1" Height="300" Width="300"> <Grid> <src:UserControl1 /> </Grid> </Window> Well, that's everything. I'm not sure why editing the TextBox.Text properties in the window does not seem to update the source property for the binding in the code behind, namely MyCollection. Clicking on the button pretty much causes the problem to stare me in the face;) Please help me understand where I'm going wrong. Thanx! Andrew

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• Books about the philosophy of software development

  - by anon

  The first time I read The Mythical Man Month, I found the book utterly boring, a waste of my time, and thought it was written by some management guru that never wrote a line of code. A few years later, I realized Fred Brooks won the Turing award. Some years after that, after a few large development projects, I started understanding what he was talking about. Are there any other books about software development on a meta/philosophical level—not in the sense of design patterns, templates, or even lisp macros—but at a level where ideas are expressed without code?

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• The proxy server received an invalid response from an upstream server

  - by chandank

  I have tomcat server behind the apache. I am using mod_ssl and reverse proxy to the tomcat. All are running at default ports. The full error is as follow. ack Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /pages/doeditpage.action. Reason: Error reading from remote server If I clean the browser cache the error goes away and comes back after few attempts. I test the same on Chrome/Firefox/IE on Windows platform. Wondering it works perfectly on Linux based Chrome/Firefox. I googled a lot there are few answers at stack overflow but I am not able to find my answer. Is this a server side problem? because so many browsers cant be wrong at same time on Windows.

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• Switch smarthosts in Exchange when using dual WAN

  - by mat0ng

  Hi everybody, I'd like to know if it's possible to setup Exchange 2003/2007 to switch between smarthosts, based on the WAN connection currently in use. Example scenario: I have two WAN connections with different ISP's. Exchange is running behind a dual WAN router. The router is setup to fall back to secondary WAN when primary WAN fails. The smarthost set in Exchange is the SMTP server of the primary ISP. Because the smarthost set in Exchange only allows relaying from IP's of the primary WAN sending mail won't work when the router falls back to the secondary WAN. Sending mail directly through DNS MX lookup is an option but the ISP's have dynamic IP's that get blacklisted a lot. Thanks in advance!

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• Apache error_log showing which command output

  - by Unai Rodriguez

  Apache's error_log shows lines like the following: --- snip --- which: no ruby in (/sbin:/usr/sbin:/bin:/usr/bin) which: no locate in (/sbin:/usr/sbin:/bin:/usr/bin) which: no suidperl in (/sbin:/usr/sbin:/bin:/usr/bin) which: no get in (/sbin:/usr/sbin:/bin:/usr/bin) which: no fetch in (/sbin:/usr/sbin:/bin:/usr/bin) which: no links in (/sbin:/usr/sbin:/bin:/usr/bin) which: no lynx in (/sbin:/usr/sbin:/bin:/usr/bin) which: no lwp-mirror in (/sbin:/usr/sbin:/bin:/usr/bin) which: no lwp-download in (/sbin:/usr/sbin:/bin:/usr/bin) which: no kav in (/sbin:/usr/sbin:/bin:/usr/bin) --- end --- The architecture is: Internet - Load Balancer - Varnish - Apache There are several web servers behind the load balancer and I have checked at least one of them with rkhunter (link) and couldn't find anything suspicious. Versions: CentOS 5.7 Varnish 2.1.5 Apache 2.2.3 PHP 5.2.17 Does this mean that someone has executed the command which through Apache? How can that happen? Thank you so much.

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• OpenVPN performance: how many concurrent clients are possible?

  - by Steffen Müller

  I am evaluating a system for a client where many OpenVPN clients connect to a OpenVPN server. "Many" means 50000 - 1000000. Why do I do that? The clients are distributed embedded systems, each sitting behind the system owners dsl router. The server needs to be able to send commands to the clients. My first naive approach is to make the clients connect to the server via an openvpn network. This way, the secure communication tunnel can be used in both directions. This means that all clients are always connected to the server. There are many clients summing up over the years. The question is: does the OpenVPN server explode when reaching a certain number of clients? I am already aware of a maximum TCP connection number limit, therefore (and for other reasons) the VPN would have to use UDP transport. OpenVPN gurus, what is your opinion?

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