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  • speeding up website load using multiple servers/domains

    - by Mohammad
    When Yahoo! developer guide says "Deploying your content across multiple, geographically dispersed servers will make your pages load faster from the user's perspective". And as an explanation I read somewhere, that browsers will load up to 5 things simultaneously from the same domain. Would a subdomain, for example cdn.example.com be considered a new domain, in the previous statement?

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  • Can anyone recommend an open source Fax solution for a server Farm?

    - by Mike Curry
    Looking at creating a large fax farm via T.38 (Fax over Voip - hundreds of incoming and outgoing faxes) on linux servers, anyone have any suggestions on what is available? All my searches return using Asterisk with a commercial product from Digium. There must be an open source project out there I can't seem to find. Suggestions welcome! Here is some additional info: We're using Ubuntu 9.10, and planning to use T.38

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  • Serving wildcard subdomains from the mulitple servers.

    - by user489176
    I have a web application to which I want users to login only through their unique sub-domain (the sub-domain will be chosen at signup). So that I can scale the application across a number of servers, what would be the best way to set up Apache to always serve the same subdomains from the same server? For instance: matt.yyy.com, helen.yyy.com, terry.yyy.com are always served from server with ip of xxx.xxx.xxx.xxx suzi.yyy.com, fred.yyy.com, tom.yyy.com are always served from server with ip of xxx.xxx.xxx.xxx

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  • Communication between web services on different servers

    - by Tyler
    Hi, I have 2 different webservices running on 2 different tomcat application servers (w/ axis2 web service engine) (Webservice A runs on Server A and Webservice B runs on Server B). How can web service A on Server A pass Data A (file) to Web Service B on Server B? I am new to web services and would appreciate any help in this regard. Thanks!

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  • Client ping to servers

    - by skarama
    Hi, I am wondering what would the best way to let visitors of a website ping various remote servers. Example: I am a visitor, I choose from a lsit of locations Paris, France and the script would ping from my location to Paris and return an average of x number of ping attempts. Any ideas?

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  • Are there any open source video transcoding servers?

    - by maxfridbe
    Are there any servers written that can be setup to take video transcode jobs? I am looking to set one up to work just like the service Zencoder. Something that I could send my transcoding jobs to maybe via web-services. If not are there any c# wrappers to the common open source transcoders such that I could write one.

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  • WLI domain with 3 servers - issues on JPD process startup

    - by XpiritO
    Hi there. I'm currently working on a clustered WLI environment which comprehends 3 servers: 1 admin server ("AdminServer") and 2 managed servers ("mn1" and "mn2") grouped as a cluster, as follows: Architecture diagram: http://img72.imageshack.us/img72/4112/clusterdiagram.jpg I've developed a JPD process to execute some scheduled tasks, invoked using a Message Broker. I've deployed this project into a single-server WLI domain (with AdminServer only) and it works as expected: the JPD process is invoked (I've configured a Timer Event Generator instance to start it up). Message broker: http://img532.imageshack.us/img532/1443/wlimessagebroker.jpg Timer event generator: http://img408.imageshack.us/img408/7358/wlitimereventgenerator.jpg In order to achieve fail-over and load-balancing capabilities, I'm currently trying to deploy this JPD process into this clustered WLI environment. Although, I'm having some issues with this, as I cannot get it to work properly, even if it still works. Here is a screenshot of the "WLI Process Instance Monitor" (with AdminServer and mn1 instances up and running): http://img710.imageshack.us/img710/8477/wliprocessinstancemonit.jpg According to this screen the process seems to be running, as it shows in this instance monitor screen. However, I don't see any output coming out neither at AdminServer console or mn1 console. In single-server domain it was visible output from JPD process "timeout" callback method, wich implementation is shown below: @com.bea.wli.control.broker.MessageBroker.StaticSubscription(xquery = "", filterValueMatch = "", channelName = "/SamplePrefix/Samples/SampleStringChannel", messageBody = "{x0}") public void subscription(java.lang.String x0) { String toReturn=""; try { Context myCtx = new InitialContext(); MBeanHome mbeanHome = (MBeanHome)myCtx.lookup("weblogic.management.home.localhome"); toReturn=mbeanHome.getMBeanServer().getServerName(); System.out.println("**** executed at **** " + System.currentTimeMillis() + " by: " + toReturn); } catch (Exception e) { System.out.println("Exception!"); e.printStackTrace(); } } (...) @org.apache.beehive.controls.api.events.EventHandler(field = "myT", eventSet = com.bea.control.WliTimerControl.Callback.class, eventName = "onTimeout") public void myT_onTimeout(long time, java.io.Serializable data) { // #START: CODE GENERATED - PROTECTED SECTION - you can safely add code above this comment in this method. #// // input transform System.out.println("**** published at **** " + System.currentTimeMillis()); publishControl.publish("aaaa"); // parameter assignment // #END : CODE GENERATED - PROTECTED SECTION - you can safely add code below this comment in this method. #// } and here is the output visible at "AdminServer" console in single-server domain testing: **** published at **** 1273238090713 **** executed at **** 1273238132123 by: AdminServer **** published at **** 1273238152462 **** executed at **** 1273238152562 by: AdminServer (...) What may be wrong with my clustered configuration? Am I missing something to accomplish clustered deployment? Thanks in advance for your help.

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  • Handle Proxy servers?

    - by govardhan
    We are doing one project. We have to develope website, that displays all proxy servers list and when user click on particular server it will be activated to him. For this I am confusing on use Java or PHP. which is simple to handle proxys. Please help me.

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  • What web servers use `COOKIE` instead of `HTTP_COOKIE`?

    - by Smack my batch up
    In the source code of the Perl module CGI.pm, in the submodule CGI::Cookies.pm, there is the following line: $raw_cookie = $ENV{HTTP_COOKIE} || $ENV{COOKIE}; I'm interested in $ENV{COOKIE} here. Are there any web servers (obsolete or otherwise) which transmit cookie information using the COOKIE environment variable instead of the HTTP_COOKIE used by Apache? I've never seen COOKIE and other CGI libraries don't seem to support it.

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  • Locate Compressed files on servers

    - by frankdossing
    Hi, I would like to create a powershell script generating a report showing all compressed files/folders on remote servers. By compressed files I mean files compressed using the buildin Windows Compression utility, not zip. But I have a hard time figuring out how to localize the compressed files. Should I go with WMI or? Thanks Frank

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  • Programmatically obtain DNS servers of host

    - by Nicholas Palko
    Using C++, I would like to obtain the DNS servers being used by a host for three operating systems: OS X, FreeBSD, and Windows. I'd like confirmation that the approaches below are indeed best practice, and if not, a superior alternative. OS X: already answered; updated link at developer.apple.com Windows: [GetNetworkParms](http://msdn.microsoft.com/en-us/library/aa365968(VS.85).aspx) FreeBSD: /etc/resolv.conf Thanks in advance for your help!

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  • Federated (Synced) Subversion servers?

    - by Adam Haile
    Is it possible to create "federated" Subversion servers? As in one server at location A and another at location B that sync up their local versions of the repository automatically. That way when someone at either location interacts with the repository they are accessing their respective local server and therefore has faster response times.

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  • bounce multiple servers using ant

    - by Angrezy
    Hi All, This is restart target code which is defined in build.xml target name="restart" propertycopy name="remote.host" from="deploy.${target.env}.host.${remote.id}" propertycopy name="remote.port" from="deploy.${target.env}.port.${remote.id}" sshexec trust="true" host="${remote.host}" port="${remote.port}" username="${scm.user}" keyfile="${scm.user.key}" command="sudo /usr/local/bin/bounce_jboss" target server information is defined in build.properties. The above code is working fine, but the restarting process is very late bcas its stopping-starting server one and later its stopping-starting another server, Is there a way where i can restart both servers parallely with a time frame of 45 seconds.

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  • More RAM vs. more servers [closed]

    - by user357972
    I was recently asked "Do you know when to decide between going for more RAM or more servers?" (in the context of scaling data mining applications). I had no idea, so what are some ways to decide? I have very little knowledge of architecture and scaling (my understanding of computer memory and what a server does is limited to the high-level basics), so tips on learning more about these things in general are also very welcome.

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  • What is Best storage servers infrastructure ? DAS/NAS/SAN or installing GlusterFS/LUSTER/HDFS/RBDB

    - by TORr0t
    I am trying to design an infrastucture for the project I am working on. It would be somehow a file-sharing/downloading project (like rapidshare) and I would need high storage sizes and good scability, and I would add new storage nodes after my project grows up. I have come up with 3 solutions for my project which are using Luster, GlusterFS, HDFS, RDBD. For start, i would have 2 servers, one server is for glusterfs client + webserver + db server+ a streaming server, and the other server is gluster storage node. (After sometime, i would be adding more node servers, and client servers (dont know how many new client new servers to add, will see later) So, i am thinking to work with glusterfs. But i really wonder that if i have to use high performance servers with high sotrage sizes or avarage/slow servers with high storage sizes? Or nas/das/san solutions are better for glusterfs storage nodes? I might buy a nas and install glusterfs onto it. I would be happy to listen to your recommendations for the server properties (for each clients and nodes) . I really dont know if I really need high amount of ram and good cpus to for the nodes. I am sure i need it for client servers. The files would be streamed as well, so the Automatic file replication is important, thus, my system should work like a cloud, when needed, according to high traffic, the storage nodes should copy the most demanded file to be streamed and would help me to get rid of scability problems and my visitors would able to stream/download those files. Also, i am open to your experiences/thoughts about any good solution. Luster, hdfs, rbdb are the other options and i would be happy to listen to your thoughts here. I would be very very happy to hear back from anyone commented of any words I have used here. Thanks

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  • How many different servers are needed to keep a website running with no downtime? [closed]

    - by Mason Wheeler
    Machines go down. It's a fact of life. They may need to be rebooted for some reason, or they may have a hardware failure, or a power outage. So if I wanted to deploy a website with a server backed by a SQL database, putting the whole thing on one server wouldn't be good enough. It obviously needs at least two servers, so that if one goes down, the other can pick up the slack until the first comes back up. Of course, if I have the server software on two machines, either one of which could go down, I can't place the database on either of those two machines, because it could go down. So the database needs its own server. But that server can go down, so I need a backup database server and some sort of replication system to keep it in sync so the main can fail-over to it. So far, that's a bare minimum of 4 machines to keep one website running with a reasonable chance of no downtime. (Assuming no catastrophic events take place that take down both front-end servers at once or both DB servers at once, and no hacks, DDOS attacks, etc. Am I missing any other factors, or should I consider 4 servers to be the minimum for running a website with a goal of continuing operation without downtime even when a server goes down?

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  • Best server-side javascript servers.

    - by fmsf
    Hey, I've been wondering to try out server-side javascript for a while. And I'm finding a good amount of servers, like: Node.js Rhino SpiderMonkey among others. Could anyone with experience on server-side javascript, tell me which are the best engines? and why? I like the Node.js because it's based on Google's V8 engine. And seems easy to use. But some feedback on what you would choose would be great. Edit: Some benchmarks for Node. I'm thinking on going with this one but feedback is still welcome. Thanks

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  • Running Perl Scripts on servers that don't have the modules

    - by envinyater
    I need to run a perl script to gather system information that will be deployed and executed on different unix servers. Right now I am writing it and testing it, and I'm receiving this error. Can't locate XML/DOM.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at test.pl line 7. BEGIN failed--compilation aborted at test.pl line 7. So I am simply using XML::DOM which should be part of Perl but it isn't for this version on this particular server which is 5.10.1. Anyways, is there a way I can create and design my script and package modules into it while keeping the .pl extension, which is the requirement for this script?

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