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• Input traffic shaping

  - by whitequark

  I know that I can shape output traffic with tc or a similar tool. However, I want to shape the input traffic now—actually, I want to prioritize downloading of files of certain type through a slow lossy connection. I know the reason tc can only shape output traffic: the host itself has no direct control over the amount of input traffic. On the other hand, TCP has some measures built in it which prevent the TCP traffic from overflowing a slow connection. So, can I mangle something in TCP header so that the remote host will think my connection is slower than it thinks? Suppose that I am able to set the corresponding mark on both types of connections with iptables. Is there any way to reduce the input bandwidth of connections of first type, but only if connections of second type are present?

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• Win 2008 Server configuration

  - by user123790

  Let me preface my question by saying I'm a novice in regards to server configuration. It's been 12+ years since I've attempted this. What we (our small office) are trying to achieve is to setup a Win 2008 server (located in a home) in a home network configuration (basic wireless router w/DHCP) that we (the office) can VPN to from our office. I have installed the software, installed DHCP, removed DHCP from the router, set the scope for 100 IPs and am now looking for information as to where I go from here? I believe I need to configure DNS and possibly set up static routes on the router for the home devices that need internet? The wireless clients are not receiving IPs is the current issue that I'd like to tackle. Also, would it be feasible to use the router's DHCP to assign IPs rather than having the server do it? If so, what would be the most direct way to accomplish this? I appreciate any help in this matter. Thanks

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• Routing based on source address in Windows Server 2008 R2

  - by rocku

  I'm implementing a direct routing load balanced solution using Windows Server 2008 R2 as back-end server. I've configured a loopback interface with the external IP address. This works, I am receiving packets with the external IP address and respond to them appropriately. However our infrastructure requires that traffic which is being load-balanced should go through a different gateway then any other traffic originating from the server, ie. updates etc. So basicly I need to route packets based on source address (external IP) to another gateway. The built-in Windows 'route' command allows routing based on destination address only. I've tried setting a default gateway on the loopback interface and mangled with weak/strong host send/receive parameters on the interfaces, however this didn't work. Is there any way around this, possibly using third party tools?

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• t-sql - find differences for pk's in a single table (Self join?)

  - by Pace

  Hi Experts, My situation is this. I have a table of products with a pk "Parent" which has "Components" The data looks something like this Parent(PK) Component Car1 Wheel Car1 Tyre Car1 Roof Car2 Alloy Car2 Tyre Car2 Roof Car3 Alloy Car3 Tyre Car3 Roof Car3 Leather Seats Now what I want to do is some query that I can feed two codes in and see the differences... IE If I feed in "Car1", "Car2" it would return something like; Parent Component Car1 Wheel Car2 Alloy As this is the difference between the two. If I said "Car1", "Car3" I would expect; Parent Component Car1 Wheel Car3 Alloy Car3 Leather Seats Your help with this matter would be greatly appreciated.

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• Input string was not in correct format.

  - by jawahar-sync

  Hi Experts, I had a Ribbon like custom control. I created an application using this control. These applications work fine until I change the system number format. They crashes if I change the system number format like below: Current Format = English (United State) Decimal symbol = ',' Digit group symbol = '.' When I run applications, they throw an exception "Input string not in Correct format". . Some other applications specify the Exception's message = "Input string '0,2,0,2' was not a correct format", so I think in Wpf ES's xaml files, we may declare some properties i.e Padding, Margin like "0,2,0,2" = that will cause errors with the system number format above. I have note that this error only occurs in Windows Vista, it does not occurs on Windows XP. I do not know why? I have also look at this link, But it not helps for Vista. http://support.microsoft.com/kb/968227/en-us

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• Debian/Ubuntu: Enabling "dist-upgrade" behavior for unattended-upgrades?

  - by Mark Renouf

  We've got a customized distribution of Ubuntu, a repository with some custom packages and we run unattended-upgrades on a number of systems. What we want to be able to do is supply an update of one of our packages which might have a new dependency which is not yet installed. I understand apt normally prevents that from happening automatically, and using dist-upgrade would permit it. How can I get that behavior so our unattended upgrades work the same way? Ideally we'd only want new packages installed if one of our packages causes it to be needed (either as a direct dependency or a child, etc.) Should I be aware of any potential problems or increased risk of breakage. The systems are generally not easily accessed via the console so anything causing a problem requiring manual intervention would be very bad!

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• How to edit the list of files to download in a .torrent file?

  - by Forbidden Overseer

  I have a torrent that contains many files in it, but I don't want to download all of them because I need only few files among them. I am not downloading from a torrent client, but I am actually using put.io service that converts torrents into direct downloads for me. I want to edit the .torrent file (or magnet link) in such a way that I get only those files which I need from the torrent. I tried by editing with text editors, but I am getting some crazy hash errors when I did that. I have seen people editing trackers in a torrent file (using online editors and other editors), but none of them edited the list of files in the torrent file. So, the question is: How to edit a .torrent file (and save it back as another .torrent file) such that when you run that torrent file, it only downloads only those files you need?

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• How to use ssh-agent (and graphic passphrase dialog) in Kubuntu 10.10?

  - by halo

  I have recently switched from Ubuntu to kubuntu, both version 10.10. Unfortunately in KDE the ssh passphrase dialog doesn't work out of the box. Everytime my ssh private key is used I need to enter my password. This is neither secure nor comfortable. I have done comprehensive research on the net but only found out dated documentation. Several things I tried didn't work out. Current status: SSH setup working with direct passphrase input ssh-agent running in X session $SSH_AUTH_SOCK set to ssh-agent's socket in X session How to enable ssh-agent for keeping the passphrase in memory for ~15mins and as a bonus always use a graphical dialog for its input? I use asymmetric SSH key pairs for pushing/pulling in Git VCS logging remotely into different server systems

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• Get address using Geocoder in android

  - by user264953

  Hi, I tried to get the address of a particular location by giving static geocordinates. I was not able to fetch the address. Can someone please help. I just need to check whether this function works for me. Here is my snippet. Geocoder geocoder = new Geocoder(AddressSimulator.this, Locale.getDefault()); List<Address> addresses = geocoder.getFromLocation(1.352566007, 103.78921587, 1); System.out.println("Addresses size"+addresses.size()); Address size is obtained as zero. I tried with few other geocordinates also, but address size is always returned as 0. Experts, kindly help me resolve this. Looking forward for your valuable help/suggestions, Best Regards, Rony

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• Multiple subnets behind SonicWall TZ 180

  - by Derek

  We have a SonicWall TZ180 that acts as a VPN endpoint. Right now it has one WAN IP address and a /24 assigned to the LAN interface. Our mail cluster administrator asked if it was possible to add a second private class C behind the VPN. This second subnet would be available to the other network and then we would use address objects and acls to limit access. Is this possible? I read up on PortShield but I don't know if that's what we would need to use because we're pushing all data out of one physical port into a Cisco switch that has VLANs already set up. Addendum: It appears that PortShields will do what I want with only one limitation; it requires a direct 1-1 relationship of portshield to physical port. This would then limit us to 4 PortShields on 1 TZ180. Is there a better solution than this?

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• Window 2003 is PHP Limiting my Download Speed?

  - by JohnScout

  Hello, I have window 2003 100mbps server, i have tried using php script such as php indexer, zina pancake.org and others. The php script use to serve download such as images and music songs. I personally have 20mbps internet speed. When i use the php script (download pass thru PHP headers) , it will download at constant speed of 30-40KBps. I have tried different webserver such as apache 1.3, apache 2.2, abyss webserver & lighttpd for windows. The speed while relying on php is same constant 30-40KBps however when i tried direct link/straight from apache, the speed is 1MB/s. Is there any settings in Window 2003 Registry or PHP should i change to make the download speed is more faster when going thru PHP?

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• How to make validation for a textbox that accept only comma(,) & digit in c# web application?

  - by prateeksaluja20

  Hello Experts, I am working on a website.I am using C# 2008.I want to make a text box that accept only numbers & comma(,). for example-919981424199,78848817711,47171111747 or there may be a single number like 919981424199. I was able to do one thing My text box only containing number by using this Regular Expression validation.in its property-Validation Expression i wrote "[0-9]+". This is working but now my requirement is to send bulk SMS & each number is separated by (,). I tried a lot but not getting the ans.so please help me to sort out this problem. Thanks in advance.

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• questions on transfer rate

  - by Nrew

  I tested my internet speed at speedtest.net. And go the result. .42Mbps Download and .21 Upload rate. My classmate got the same download speed of .42Mbps but has .87Mbps upload rate. Does upload rate affect the transfer rate?Because even though we got the same download speed. His transfer rate is about 100kbps downloading a movie from a torrent. And mine is only about 47kbps. Also the same torrent. And even direct download its always 47kbps. Is it possible to tweak something in order to have higher transfer rates.

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• Why doesn't this batch file work for me?

  - by asdfg

  The following batch file is not woking. @echo off python -c "print('echo text')" %TEMP%\test.bat call %TEMP%\test.bat Can anyone help me with this?. edit: I needed unix eval functionality in windows. I could not find a direct way though. So I redirected the eval string to a temporary batch file and executed it. The temporary batch file was successfully created but calling it did not work in the above case. I noticed that any command after the test.bat creation did not work.

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• How to intercept and manipulate DNS queries?

  - by emtunc

  I'm not sure if I worded the question correctly to be honest but basically what I want to do is: When a user types in something like Expenses in the URL bar of a browser, I want the browser to be directed to a specific web address (very very similar to how OpenDNS shortcuts work) The IP address of the web address will not change amongst the different 'shortcuts'... i.e: mycompany.com = 10.0.0.0 mycompany.com/expenses = 10.0.0.0 mycompany.com/tracker = 10.0.0.0 When a user types expenses in the browser address bar and presses enter, I want the browser to automatically direct to the specified address as above. Would this be tricky to implement? I hope I have put my question forward appropriately :-) Additional notes: We are on a Windows envionment I believe the exchange server is running as the DNS server in the office

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• Creating encrypted database for work

  - by Baldur

  My boss posed this problem to me: Encrypted: We need an encrypted database for miscellanious passwords we use at work that are currently only in people's head. Easily accessable: Someone needs to be able to quickly access specific passwords, possibly at hectic moments. This requires any sort of public key management (keeping it on a USB key in a sealed envelope?) to be relatively easy. Access control: The system should have groups of passwords where only specific people have access to specific groups. Recoverability: We need to make sure passwords from one group aren't lost even if the only users with direct access quit or pass away—hence we need some way where (for example) any two members of senior management may override the system (see the treshold link below) and retrieve all the passwords with their key. The first thing that jumped into my mind was some form of threshold and asymmetric cryptography but I don't want to reinvent the wheel, are there any solutions for this? Any software should preferrably be free and open-source.

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• What measures should be taken to prevent File System Object from accessing directories of other customers on an IIS shared web host?

  - by sean e

  We have our website on an IIS shared hosting server. While working on a file monitor for our site, we have found that the File System Object allows us to enumerate the directories and files of other customers that are on the same server as us. Attempting to enumerate files in some root customer directories results in access denied errors - but not all. Is this an IIS configuration error? A Windows configuration error? How can we direct our hosting company to fix the problem?

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• How to use ssh-agent (and graphic passphrase dialog) in Kubuntu 10.10?

  - by halo

  I have recently switched from Ubuntu to kubuntu, both version 10.10. Unfortunately in KDE the ssh passphrase dialog doesn't work out of the box. Everytime my ssh private key is used I need to enter my password. This is neither secure nor comfortable. I have done comprehensive research on the net but only found out dated documentation. Several things I tried didn't work out. Current status: SSH setup working with direct passphrase input ssh-agent running in X session $SSH_AUTH_SOCK set to ssh-agent's socket in X session How to enable ssh-agent for keeping the passphrase in memory for ~15mins and as a bonus always use a graphical dialog for its input? I use asymmetric SSH key pairs for pushing/pulling in Git VCS logging remotely into different server systems

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• C++ copy-construct construct-and-assign question

  - by Andy

  Blockquote Here is an extract from item 56 of the book "C++ Gotchas": It's not uncommon to see a simple initialization of a Y object written any of three different ways, as if they were equivalent. Y a( 1066 ); Y b = Y(1066); Y c = 1066; In point of fact, all three of these initializations will probably result in the same object code being generated, but they're not equivalent. The initialization of a is known as a direct initialization, and it does precisely what one might expect. The initialization is accomplished through a direct invocation of Y::Y(int). The initializations of b and c are more complex. In fact, they're too complex. These are both copy initializations. In the case of the initialization of b, we're requesting the creation of an anonymous temporary of type Y, initialized with the value 1066. We then use this anonymous temporary as a parameter to the copy constructor for class Y to initialize b. Finally, we call the destructor for the anonymous temporary. To test this, I did a simple class with a data member (program attached at the end) and the results were surprising. It seems that for the case of b, the object was constructed by the copy constructor rather than as suggested in the book. Does anybody know if the language standard has changed or is this simply an optimisation feature of the compiler? I was using Visual Studio 2008. Code sample: #include <iostream> class Widget { std::string name; public: // Constructor Widget(std::string n) { name=n; std::cout << "Constructing Widget " << this->name << std::endl; } // Copy constructor Widget (const Widget& rhs) { std::cout << "Copy constructing Widget from " << rhs.name << std::endl; } // Assignment operator Widget& operator=(const Widget& rhs) { std::cout << "Assigning Widget from " << rhs.name << " to " << this->name << std::endl; return *this; } }; int main(void) { // construct Widget a("a"); // copy construct Widget b(a); // construct and assign Widget c("c"); c = a; // copy construct! Widget d = a; // construct! Widget e = "e"; // construct and assign Widget f = Widget("f"); return 0; } Output: Constructing Widget a Copy constructing Widget from a Constructing Widget c Assigning Widget from a to c Copy constructing Widget from a Constructing Widget e Constructing Widget f Copy constructing Widget from f I was most surprised by the results of constructing d and e.

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• SFTP over double server hop

  - by josh.trow

  I'm trying to work out a method to allow me to access files on an SFTP server than I cannot access from my local machine. Currently, I have to SSH to a remote server (it is in a certain IP block that the final SFTP server will accept from), then from there SFTP to the destination server. From there, I get the files I am interested in, thereby dropping them onto the middleman server, from which I can get the files either over a Samba share or with a direct scp. I also work in the reverse, where I drop the files onto the middleman, SSH to it then SFTP to the destination and put them into the appropriate folders. My goal is to shorten this. The unfortunate restrictions are that my machine is Windows (I use KiTTy and/or Cygwin) and I cannot modify the middleman server (or destination server) in any way. I am willing to use command line or GUI programs so long as it works and is free. Any ideas?

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• Odd Language In a BIOS Message

  - by Josh

  So I started up my laptop today and was greeted with the following message (not a direct quote): The type of the AC adapter cannot be determined. This may interfere with your computer's performance. Try unplugging the AC adapter and then plugging it back in, thanks. The problem was that I hadn't fully secured the plug into the back of the computer. However, I was a little taken aback when a message from BIOS said, "thanks." Is this normal? Any chance the message was illegitimate (virus)?

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• Redirecting Subdomain with Volusion and GoDaddy

  - by ToddN

  I need to create a subdomain (reviews.basequipment.com) and have it re-direct to our Reviews page at http://www.resellerratings.com/store/survey/Burkett_Restaurant_Equipment_Supplies. The genius's at Volusion have never gotten this to work correctly and I have been asking them for years now (yes years). Our nameservers are on Volusion and we are hosted through GoDaddy. Volusion tells me to use their "CPanel" to update DNS Records to this: reviews | CNAME | www.resellerratings.com This doesn't even work when going to reviews.basequipment.com and of course does not do the full job as I want to go to http://www.resellerratings.com/store/survey/Burkett_Restaurant_Equipment_Supplies So I have then tried doing a Forward Subdomain in GoDaddy. Added subdomain "reviews" and forward to the link I mentioned above, with no avail (im assuming because my nameservers reside on Volusion). Has anyone had experience doing this, or does anyone know of any suggestions? Volusion is pretty limited with this and as I've said, I have been trying this for years and I've finally decided to consult the community here at stackflow. Thanks in advance.

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• Eliminate single point of failure for webservers?

  - by George Bailey

  I know in DNS, that each of the DNS servers will be tried to see if they will respond I know in email that in the event of a failure it will go to the next one in the list or it will hold the mail for a period of time As far as I know,, in webservers,, the browser will get one of the webserver IP addresses and try it and if it fails it will give up. Is this correct? If so,, then the only way to direct traffic away from a failed IP address would be with the DNS servers.. and even that would not update immediately?

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• SQL Server 2005/2008 Licensing Decision

  - by Hakim

  Hello, I have purchased a dedicated server from a reputable Hosting company. They only have Windows Server 2008 OS installed on it and NO Sql server. Server Configuration is Intel Dual core Processor with 2GB of RAM and 100GB HDD. I wanted to host my web services on that server which will be using the MS SQL Server 2005 at the backend.There are multiple web services and each using a different Database. Microsoft has CAL basis Licensing , Which I understand is based on number of users accessing the database directly ( I may be wrong ) . But my users will be accessing the webservice and no direct connection to the database as such. Yes but the number of users accessing the web server cannot be known and is not under my control. Which Licensing is best suited for this kind of setup ? I don't need analysing and BI services right now ,but i may want to upgrade that in future may be. Any help will be appreciated. Thanks

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• IIS and Apache on the same machine?

  - by MLS

  I have a Windows 2003 Server running IIS (due to an ASP Site needing to be hosted). I wanted to add some non ASP sites (HTML, PHP and MySQL) so I was thinking I could just run apache on 8080. What confuses me a bit is if someone hits DomiainA.com, IIS intercepts it and forwards it to DomainA.com:8080 where apache is running. I could do this by putting a server side javascript re-direct in the IIS www-root for the domain. What else can I do that might be more proper?

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