Search Results

Search found 109076 results on 4364 pages for 'ubuntu server edition'.

Page 317/4364 | < Previous Page | 313 314 315 316 317 318 319 320 321 322 323 324  | Next Page >

  • how to actually install PHP etc on a windows 2003 server

    - by user1624421
    We're just purchasing a dedicated windows 2003 server (in fact I think it's a VPS) How do we actually go about installing software on to it? Simply searching for "installing PHP5 on windows server" just produces material about installing it as if one had access to the computer with a keyboard and mouse. Am I being thick? I've had experience managing a linux server before but that had everything pre-configured and we accessed it via Web Hosting Manager. I don't get the actual concept of connecting to a remote PC and...downloading files? If there's any good books available please point me in the right direction.

    Read the article

  • creating a subdomain on windows server

    - by jason
    Hi I'm trying to set up a sub domain for development on a windows server and am having problems setting the correct details in the httpd.ini file and hoped soemone could help. I have set up the subdomain http:// dev. website .com The files that I want to use for this subdomain are on the server in a folder called development http:// www. website .com /development in the directory structure they are in /htdocs/development What do I need to add the the httpd.ini file to point the http:// dev .website .com to file files located in the /htdocs/development folder on the server? Many Thanks

    Read the article

  • Boot.ini on Windows Server 2003 R2

    - by Jason H.
    I have a Windows Server 2003 R2 with 48 GB of RAM; server has been running strong for quite some time. Recently our boot.ini was modified causing issues, most likely by our remote administrators. Now the server is only showing 14 GB of RAM. This has caused major performance issues for our end users. Our remote administrators have stated "we don't change the boot.ini settings(switches)". However, I know for a fact that all of the local administrators have not modified the switches (due to lack of permissions). The real question.. Is it possible to "audit" who has modified the boot.ini? If thats not possible, can the boot.ini be set via startup? Any help would be greatly appreciated. This is an ongoing issue that I would love to resolve.

    Read the article

  • Windows 2008 Server network issues

    - by Snowflow
    I have this one server that just doesn't want to be on the internet It's a new server, a twinblade, the other twin works, but not this one. It can connect fine to everythign else in the LAN, but cannot go out on the net It can be reached by ICMP requests over the net (the nagios server can probe it, but not ping it for instance), but not TCP Everything seems fine both in firewall and machine, i get no issues. Anyone care to help me out where i can start looking, i'm seriously confused. edit: it can ping gateway and through the sonicwall site to site VPN, it\s also able to resolve DNS. the only thing it can`t do is reach anything outside of LAN/VPN

    Read the article

  • Cannot login SQL Server after changing machine name

    - by Ucodia
    After installing and setting up new machines in a domain, we decided to rename one of them which had a SQL Server instance installed. So I changed the hostname, everything went fine regarding the domain but now, the server is logging a approximatively 2 SQL Server errors every 5 minutes and I cannot connect to the instance localy or from anywhere within the domain. Here is the error from the event log: SSPI handshake failed with error code 0x8009030c, state 14 while establishing a connection with integrated security; the connection has been closed. Reason: AcceptSecurityContext failed. The Windows error code indicates the cause of failure. The logon attempt failed [CLIENT: x.x.x.x] Concerning the instance, everything is started and restarted without any extra error.

    Read the article

  • SQL Server 2005 transactional replication break before a configured number of retries

    - by ti2
    We have a SQL Server 2000 Standard database with some tables being replicated (continuous transactional replication) to dozens of SQL Server 2005 Express and MSDE computers. The step 2 of the replication agent job (Run agent) is configured by default to retry every 1 minute for 10 times if some problem ocurr. Because the client machines get shut down at night (they are POS machines), we changed the number of retries to 5760 (4 days), so replication would not be broken at night and would not need to be restarted manually. But the problem is that every other day we have at least one machine with broken replication, with this error: The process could not connect to Subscriber 'POS986'. NOTE: The step was retried the requested number of times (5760) without succeeding. The step failed. It seems that SQL Server is not respecting the number of retries or the interval between retries as we configured. PS: I have restarted the replication job after changing the number of retries from 10 to 5760.

    Read the article

  • Advised auditing method for MS SQL to track changes made to a specific table by a specific user?

    - by scape
    What is the best method for tracking changes or logging the queries done to a table by a specific user when the person is using Management Studio? I'm using 2008 R2 Express Edition and want to specifically track a single user who logs in through Management studio and runs queries to make changes manually. I want to see what query was run and thus determine what was changed and how. I am not interested in restoring the information. I considered Change Tracking but read that it is not ideal for auditing as well I am unsure how to read the data, then I considered the Bulk-Logging option on the database however I then have to consider handling the log files which may grow huge as the database is used constantly by a web app. I am wondering if there is a more concise method to do what I want?

    Read the article

  • Mail Server with Google Apps

    - by Daniel Fukuda
    Hello, Is there any mail server that has a feature to download (POP3) emails from another mail server like Google Apps (Gmail for your own domain), store it and then allow to users to download (POP3/IMAP) emails to their own mail client like Outlook/Live Mail? So I want it to become like a "middle mail server". I hope you guys understand it. My main reason to do so is that Google Apps got limited space for each mailbox and I also want to have emails in one space so its easy to archive and backup.

    Read the article

  • Running a dhcp server on windows 7 ultimate

    - by nikhil
    I'm trying to get my HP T5740 thin clients to connect to my local network without much success. I asked a question here but haven't got any response. I think that question should have been posted on serverfault instead. I was thinking that the problem seems to be that the thin clients aren't able to get an IP address when they are connected and I can't manually set it. So if I was to somehow set up a dhcp server on the network with my server that runs a 32 bit version of windows 7 ultimate edition. How do we set up a dhcp server in windows?

    Read the article

  • direct url to server ip address and port

    - by AM0
    We have a Windows 2012 dedicated server. There’s a custom service running on port xxxxx which accepts connections from our custom built hardware devices over TCP/IP port. As of now we use servername.serverdomain.com:xxxxx to connect to the service and start communication. However, we prefer to use URL instead of server’s name or IP Address. So we got a custom url and set its name servers to point to dedicated server. However, just setting DNS doesn’t seem to be working. Could someone please guide as to how to get it working? UPDATE In short I want www.custom-url.com being forwarded to servername.serverdomain.com:xxxxx. These requests are coming from hardware and not browser.

    Read the article

  • Block a Server from reaching a machine

    - by user
    I have a Windows 2003 server that I want to block from accessing a specific IP address. I want to control this from the Server. because I control the machine. The traffic is http traffic (webservice call). It uses a non-standard port, so IP address+ Port combination would also work. Background: I have a development enviornment that for some reason is ignoring host file enteries under some circumstances. These host files point the enviornment at services in another Dev enviornment. Wne th host files are ignored, dev is talking to production. This is not my question, rather the motivation for this inquiry. I want is a failsafe to ensure dev will error instead of happily engaging in transactions with production. I control the dev server, I do not control the firewalls or the target production machine.

    Read the article

  • Server spec for a small business [duplicate]

    - by I'll-Be-Back
    This question already has an answer here: Can you help me with my capacity planning? 2 answers I will need to buy a decent server for Windows Server 2012 and Linux for Web server (Internal use only - Intranet). I will install ESXi with 2 or 3 VM's. There will be about 80-100 Agents at work, they will login (domain controller) on client PC in the morning (between 9:40am to 10:05am). They can only use IE browser and everything else will be locked. They will not have any storage space, no email, etc. Is this spec decent enough? 2u Supermicro 825 chassis, X9SCL-F x1 Intel E3-1290v2 16Gb DDR3 x2 Intel 520 Series 240Gb x2 2Tb Seagate Barracuda, LSi 4 port SAS raid controller

    Read the article

  • Server was unable to process request.

    - by Naveen
    I have a vb.net web application that talks to a web service. I get the following error if I try to connect to the web service. System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. The strange thing is it is working fine on one of the set of servers and on another set of servers, we get this error. The only notable difference between the servers is in the authentication setting in IIS. The server where the it works fine we have the ASP.Net Impersonation disabled, but on the other server I get an error the moment I disable the ASP.Net Impersonation.

    Read the article

  • Scaling web application with SQL Server 2008 database

    - by John
    I have a database which has 90% of read only tables. 10% of the tables has writable data. We need to scale the ASP.NET application.We need to add more users who will not be writing to the database. We are thinking of adding another server and routing the users who need read only access to that server. Is there a way to replicate just some tables to another database server. Since the 90% of data doesnt change, we don't want to setup any full database replication. Please advise.

    Read the article

  • Server seems up, but accepts no connections whatsoever

    - by Rnatau
    Hi, I have a problem with a Debian based Server, unfortunately housed in a remote location. Two days ago, it was suddenly down and completely unreachable. After having someone reboot it, it worked for about a day, then seemed to be down again. This time, however, it was different: -The server reacts to pings -It is scannable, and all the relevant ports are open But: -Open shells were immediately blocked, and no warning had been shown -It's not possible to open any connection - the TCP/IP handshake seems to have some problems: SSH handshake As this is a private server of a small community, we don't have the resources to pay a technician to fix the problem for us, so any hints how to fix the problem after the next reboot would be highly appreciated... Thanks a lot!

    Read the article

  • Installing UCMA 3.0 and Creating a Communications Server "14"Trusted Application Pool

    A lot of setup and administration tasks have gotten a lot easier in Communications Server 14; one of them is building an application server to develop and run your UCMA 3.0 applications on. In this post, Ill walk you through installing the UCMA 3.0 Core SDK and creating a Trusted Application Pool on the server, thus adding it to the Communications Server 14 topology and allowing you to host and run UCMA 3.0 applications on it. Note: These instructions will change slightly as the bits get updated for the eventual Beta release I will update this post as soon as I get a chance to run this setup on a more recent build. Im doing the install on a simple Communications Server 14 topology consisting of the following Windows Server 2008 R2 Hyper-V images: DC Domain Controller ExchangeUM Exchange Server 2010 CS-SE Microsoft Communications Server 2010 Standard Edition TS Development machine Ill walk through setting up UCMA 3.0 on the TS VM, which is a fully patched Windows Server 2008 R2 machine that is joined to the Fabrikam domain.   Im also running Visual Studio 2010 on this VM because I intend to use it as a development machine.  In a future post, Ill walk through installing just the UCMA 3.0 run time to build a true production UCMA application server. Im making a couple of assumptions here: You have an existing CS 2010 site and cluster configured(well look at this in a future post) Youre starting with a fully patched Windows Server 2008 R2 machine The machine is joined to your domain This walkthrough was done in my Fabrikam VM environment but can easily be modified for your own environment. Installing the UCMA 3.0 SDK Lets start by installing the UCMA 3.0 SDK.  Run UcmaSdkWebDownload.msi to kick off the SDK installer package extract process. The installed package is extracted to C: >> Program Files >> Microsoft UCMA 3.0 >> SDK Installer Package.  Browse there and run setup.exe. Click Install to install the UCMA 3.0 Core SDK and Workflow SDK. Install Communications Server Core Components UCMA 3.0 introduces a new concept called Auto-provisioning, which is most easily explained from the developer point of view.  Remember what your app.config looked it in UCMA 2.0?  You had to store the application GRUU, the trusted contact SIP Uri, the port for your application, and the name of the certificate authority. Thats all gone with auto-provisioning all you need in your app.config is your ApplicationId, e.g.: urn:application:MyApplication. How does CS 2010 do this? All of the applications configuration data is associated with the applications id.  UCMA also queries a replicated copy of the Central Management Database to retrieve the applications configuration data and also the configuration data for any endpoints. In this step, well run Bootstrapper.exe to install the CS Core components, this checked for the following components and installs them if they are not already present: VcRedist Sqlexpress Sqlnativeclient Sqlbackcompat Ucmaredist OcsCore.msi Open a command window at C: >> Program Files >> Microsoft Communications Server 2010 >> Deployment and run the following command: Bootstrapper.exe /BootstrapReplica /MinCache /SourceDirectory:"%ProgramFiles%\Microsoft UCMA 3.0\SDK Installer Package\Prereq\BootstrapperCache" Create a New Trusted Application Pool The next step is to create a new trusted application pool for the new server.  Fire up the Communications Server Management Shell from Start >> Microsoft Communications Server 2010 >> Communications Server Management Shell and enter the following PowerShell command: New-CsTrustedApplicationPool -Identity <FQDN of Server> -Registrar <FQDN of CS Server> -Site <CS Site Name> Verify that the new server was added to the CS topology by running the following PowerShell command: (Get-CsTopology -AsXml).ToString() > Topology.xml This created a file called Topology.xml in the directory that you ran the command from.  Open the file and find the Clusters section and look for a node for the new server. The Cluster Fqdn is the name of your server, and note the name of the Site that this Cluster is a part of. <Cluster Fqdn="appsrv.fabrikam.com" RequiresReplication="true" RequiresSetup="true"> <ClusterId SiteId="UcMarketing2" Number="5" /> <Machine OrdinalInCluster="1" Fqdn="appsrv.fabrikam.com"> <NetInterface InterfaceSide="Primary" InterfaceNumber="1" IPAddress="0.0.0.0" /> </Machine> </Cluster> Configure CS Management Store Replication At this point, we have the CS Core components installed and the server configured as a trusted application pool.  We now need to set up replication so that the Central Management Store replicates down to the new server. From the Communications Server Management Shell, run the following PowerShell command to enable the Replica service on the new server: Enable-CSReplica The Replica service is enabled, but hasn't done anything yet. This can be verified by running the following PowerShell command to check the replication status for the various servers in the topology: Get-CSManagementStoreReplicationStatus You can see in the screenshot below that the UpToDate property of the new server is still False Run the following PowerShell command to force the replication to run: Invoke-CSManagementStoreReplicationStatus Run Get-CSManagementStoreReplicationStatus again to verify that the new service is now up to date Request and Set a New Certificate The last step in the process is to request a new certificate from the certificate authority on the domain and assign it to the new server. From the Communications Server Management Shell, run the following PowerShell command to request a new certificate: Request-CSCertificate -Action new -Type default -CA <Domain Controller FQDN>\<Certificate Authority> Setting the -Verbose switch on the cmdlet creates an Xml file with its output. Open the Xml file and copy the thumbprint of the generated certificate. <?xml version="1.0" encoding="utf-8"?> <Action Name="Request-CsCertificate" Time="20100512T212258"> <Action Name="Request-CsCertificate" Time="20100512T212258"> <Info Title="Connection" Time="20100512T212258">Data Source=(local)\rtclocal;Initial Catalog=xds;Integrated Security=True</Info> <Action Time="20100512T212258"> <Info Title="Certificate use" Time="20100512T212258">urn:certref:default</Info> <Info Title="Subject distinguished name" Time="20100512T212258">CN="appsrv2.fabrikam.com"</Info> <Info Time="20100512T212259">The certificate request is submitted to the Certification Authority dc.fabrikam.com\FabrikamCA.</Info> <Info Time="20100512T212259">The certificate was issued.</Info> <Info Time="20100512T212259">The certificate was imported with thumbprint AFC3C46E459C1A39AD06247676F3555826DBF705.</Info> <Complete Time="20100512T212259" /> </Action> <Info Title="command status" Time="20100512T212259">Command execution processing completed</Info> <Action Name="DeploymentXdsCmdlet.SaveCachedItems" Time="20100512T212259"> <Info Time="20100512T212259">0 updates</Info> <Complete Time="20100512T212259" /> </Action> <Info Title="command status" Time="20100512T212259">Command has completed</Info> </Action> </Action> Run the following PowerShell command to set the certificate: Set-CsCertificate -Type Default -Thumbprint <Thumbprint> Wrapping Up You now have a new UCMA 3.0 application server in your Communications Server 2010 server topology.  You can provision trusted applications and trusted application endpoints on the new server using the Communications Server 2010 Management Shell.  Well take a look at how to do that in another post. Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

    Read the article

  • Why do apt-get and wget fail on my server when ping is working?

    - by klox
    Yesterday my server still OK, but today after try to sudo apt-get update i got this error: update process. I try: sudo rm /var/lib/apt/lists/* -vf And got This.Then try update again, but it's not solving my problem then show May be still same error. I checked my internet connection try ping google.com, get result : PING google.com (74.125.235.40) 56(84) bytes of data. From 136.198.117.254: icmp_seq=1 Redirect Network(New nexthop: fw1.jvc-jein.co.id (136.198.117.6)) 64 bytes from sin01s05-in-f8.1e100.net (74.125.235.40): icmp_req=1 ttl=53 time=20.6 ms 64 bytes from sin01s05-in-f8.1e100.net (74.125.235.40): icmp_req=2 ttl=53 time=18.2 ms 64 bytes from sin01s05-in-f8.1e100.net (74.125.235.40): icmp_req=3 ttl=53 time=33.0 ms 64 bytes from sin01s05-in-f8.1e100.net (74.125.235.40): icmp_req=4 ttl=53 time=30.0 ms 64 bytes from sin01s05-in-f8.1e100.net (74.125.235.40): icmp_req=5 ttl=53 time=28.1 ms In some sites said that may be it caused by getdeb server is down. try to install: jeinqa@SVRQAR:~$ sudo apt-get install pastebinit Reading package lists... Error! E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_precise-security_restricted_binary-amd64_Packages E: The package lists or status file could not be parsed or opened. try : sudo ufw status verbose result : Status: inactive

    Read the article

  • How Do I Enable My Ubuntu Server To Host Various SSL-Enabled Websites?

    - by Andy Ibanez
    Actually, I Have looked around for a few hours now, but I can't get this to work. The main problem I'm having is that only one out of two sites works. I have my website which will mostly be used for an app. It's called atajosapp.com . atajosapp.com will have three main sites: www.atajosapp.com <- Homepage for the app. auth.atajosapp.com <- Login endpoint for my API (needs SSL) api.atajosapp.com <- Main endpoint for my API (needs SSL). If you attempt to access api.atajosapp.com it works. It will throw you a 403 error and a JSON output, but that's fully intentional. If you try to access auth.atajosapp.com however, the site simply doesn't load. Chrome complains with: The webpage at https://auth.atajosapp.com/ might be temporarily down or it may have moved permanently to a new web address. Error code: ERR_TUNNEL_CONNECTION_FAILED But the website IS there. If you try to access www.atajosapp.com or any other HTTP site, it connects fine. It just doesn't like dealing with more than one HTTPS websites, it seems. The VirtualHost for api.atajosapp.com looks like this: <VirtualHost *:443> DocumentRoot /var/www/api.atajosapp.com ServerName api.atajosapp.com SSLEngine on SSLCertificateFile /certificates/STAR_atajosapp_com.crt SSLCertificateKeyFile /certificates/star_atajosapp_com.key SSLCertificateChainFile /certificates/PositiveSSLCA2.crt </VirtualHost> auth.atajosapp.com Looks very similar: <VirtualHost *:443> DocumentRoot /var/www/auth.atajosapp.com ServerName auth.atajosapp.com SSLEngine on SSLCertificateFile /certificates/STAR_atajosapp_com.crt SSLCertificateKeyFile /certificates/star_atajosapp_com.key SSLCertificateChainFile /certificates/PositiveSSLCA2.crt </VirtualHost> Now I have found many websites that talk about possible solutions. At first, I was getting a message like this: _default_ VirtualHost overlap on port 443, the first has precedence But after googling for hours, I managed to solve it by editing both apache2.conf and ports.conf. This is the last thing I added to ports.conf: <IfModule mod_ssl.c> NameVirtualHost *:443 # SSL name based virtual hosts are not yet supported, therefore no # NameVirtualHost statement here NameVirtualHost *:443 Listen 443 </IfModule> Still, right now only api.atajosapp.com and www.atajosapp.com are working. I still can't access auth.atajosapp.com. When I check the error log, I see this: Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) I don't know what else to do to make both sites work fine on this. I purchased a Wildcard SSL certificate from Comodo that supposedly secures *.atajosapp.com, so after hours trying and googling, I don't know what's wrong anymore. Any help will be really appreciated. EDIT: I just ran the apachectl -t -D DUMP_VHOSTS command and this is the output. Can't make much sense of it...: root@atajosapp:/# apachectl -t -D DUMP_VHOSTS apache2: Could not reliably determine the server's fully qualified domain name, using atajosapp.com for ServerName [Thu Nov 07 02:01:24 2013] [warn] NameVirtualHost *:443 has no VirtualHosts VirtualHost configuration: wildcard NameVirtualHosts and _default_ servers: *:443 is a NameVirtualHost default server api.atajosapp.com (/etc/apache2/sites-enabled/api.atajosapp.com:1) port 443 namevhost api.atajosapp.com (/etc/apache2/sites-enabled/api.atajosapp.com:1) port 443 namevhost auth.atajosapp.com (/etc/apache2/sites-enabled/auth.atajosapp.com:1) *:80 is a NameVirtualHost default server atajosapp.com (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost atajosapp.com (/etc/apache2/sites-enabled/000-default:1)

    Read the article

  • How do I connect remotely to SQL Server from Windows client?

    - by humble_coder
    Hi All, Having a bit of an issue connecting to SQL SERVER remotely from Windows. I've verified that all of my settings are correct via SQL SERVER MANAGEMENT STUDIO EXPRESS and SQL SERVER CONFIGURATION MANAGER. I can connect remotely using ODBC drivers from other OSes (e.g. OS X, Linux, etc). However, when I connect with the same credentials from a remote Windows machine using "SQL SERVER" as the driver I am told that the system cannot connect. I've tried creating an ODBC Data Source and I get the same error: Connection failed: SQLState: '01000' SQL Server Error: 14 [Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]ConnectionOpen(InvalidInstance()). Connection failed: SQLState: '08001' SQL Server Error: 14 [Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]Invalid Connection From the non-windows machines I can use the IP address of the SQL Server just fine. However, on the remote Windows machine, neither IP address nor named instance works. FYI, I can create an ODBC Data Source using the named instance on the machine actually running the SQL Server (but this is, of course, nothing special -- just proof that it isn't completely hosed). One interesting note: If I use SQL STUDIO 2005 from a Windows client machine, I can use the IP address to connect remotely. Still, the whole reason I bring this up is because I need to use a software package I've written to connect to SQL Server remotely from Windows machines as well. Previously the solution was only needed to xfer data from SQL Server into a PostGRES or MySQL database on non-Windows machines (due to DBA preference). However, now they also want to move the data from the legacy software to MySQL even on Windows. Any assistance would be most appreciated. Feel free to provide a full example connection string. Best

    Read the article

  • The Interaction between Three-Tier Client/Server Model and Three-Tier Application Architecture Model

    The three-tier client/server model is a network architectural approach currently used in modern networking. This approach divides a network in to three distinct components. Three-Tier Client/Server Model Components Client Component Server Component Database Component The Client Component of the network typically represents any device on the network. A basic example of this would be computer or another network/web enabled devices that are connected to a network. Network clients request resources on the network, and are usually equipped with a user interface for the presentation of the data returned from the Server Component. This process is done through the use of various software clients, and example of this can be seen through the use of a web browser client. The web browser request information from the Server Component located on the network and then renders the results for the user to process. The Server Components of the network return data based on specific client request back to the requesting client.  Server Components also inherit the attributes of a Client Component in that they are a device on the network and that they can also request information from other Server Components. However what differentiates a Client Component from a Server Component is that a Server Component response to requests from devices on the network. An example of a Server Component can be seen in a web server. A web server listens for new requests and then interprets the request, processes the web pages, and then returns the processed data back to the web browser client so that it may render the data for the user to interpret. The Database Component of the network returns unprocessed data from databases or other resources. This component also inherits attributes from the Server Component in that it is a device on a network, it can request information from other server components and database components, and it also listens for new requests so that it can return data when needed. The three-tier client/server model is very similar to the three-tier application architecture model, and in fact the layers can be mapped to one another. Three-Tier Application Architecture Model Presentation Layer/Logic Business Layer/Logic Data Layer/Logic The Presentation Layer including its underlying logic is very similar to the Client Component of the three-tiered model. The Presentation Layer focuses on interpreting the data returned by the Business Layer as well as presents the data back to the user.  Both the Presentation Layer and the Client Component focus primarily on the user and their experience. This allows for segments of the Business Layer to be distributable and interchangeable because the Presentation Layer is not directly integrated in with Business Layer. The Presentation Layer does not care where the data comes from as long as it is in the proper format. This allows for the Presentation Layer and Business Layer to be stored on one or more different servers so that it can provide a higher availability to clients requesting data. A good example of this is a web site that uses load balancing. When a web site decides to take on the task of load balancing they must obtain a network device that sits in front of a one or machines in order to distribute the request across multiple servers. When a user comes in through the load balanced device they are redirected to a specific server based on a few factors. Common Load Balancing Factors Current Server Availability Current Server Response Time Current Server Priority The Business Layer and corresponding logic are business rules applied to data prior to it being sent to the Presentation Layer. These rules are used to manipulate the data coming from the Data Access Layer, in addition to validating any data prior to being stored in the Data Access Layer. A good example of this would be when a user is trying to create multiple accounts under one email address. The Business Layer logic can prevent duplicate accounts by enforcing a unique email for every new account before the data is even stored in the Data Access Layer. The Server Component can be directly tied to this layer in that the server typically stores and process the Business Layer before it is returned to the end-user via the Presentation Layer. In addition the Server Component can also run automated process through the Business Layer on the data in the Data Access Layer so that additional business analysis can be derived from the data that has been already collected. The Data Layer and its logic are responsible for storing information so that it can be easily retrieved. Typical in most modern applications data is stored in a database management system however data can also be in the form of files stored on a file server. In addition a database can take on one of several forms. Common Database Formats XML File Pipe Delimited File Tab Delimited File Comma Delimited File (CSV) Plain Text File Microsoft Access Microsoft SQL Server MySql Oracle Sybase The Database component of the Networking model can be directly tied to the Data Layer because this is where the Data Layer obtains the data to return back the Business Layer. The Database Component basically allows for a place on the network to store data for future use. This enables applications to save data when they can and then quickly recall the saved data as needed so that the application does not have to worry about storing the data in memory. This prevents overhead that could be created when an application must retain all data in memory. As you can see the Three-Tier Client/Server Networking Model and the Three-Tiered Application Architecture Model rely very heavily on one another to function especially if different aspects of an application are distributed across an entire network. The use of various servers and database servers are wonderful when an application has a need to distribute work across the network. Network Components and Application Layers Interaction Database components will store all data needed for the Data Access Layer to manipulate and return to the Business Layer Server Component executes the Business Layer that manipulates data so that it can be returned to the Presentation Layer Client Component hosts the Presentation Layer that  interprets the data and present it to the user

    Read the article

  • Built-in network card not working?

    - by Zeeshan
    Hi, I am new to Ubuntu. I have installed Ubuntu 9.04(Jaunty). After installation I found that network card is not wokring. And id doest not list in "System Preferenes Network Connections" So , i got another card from my friend and try to search on internat about my problem but still cant find solution. Some commands output is here which may be help to solve problem root@mzeeshan-desktop:/home/mzeeshan# uname -r 2.6.28-11-generic root@mzeeshan-desktop:/home/mzeeshan# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:02:44:4a:45:12 inet addr:192.168.5.37 Bcast:192.168.5.255 Mask:255.255.255.0 inet6 addr: fe80::202:44ff:fe4a:4512/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3774 errors:0 dropped:0 overruns:0 frame:0 TX packets:3611 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4307045 (4.3 MB) TX bytes:583067 (583.0 KB) Interrupt:22 Base address:0x1000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:240 (240.0 B) TX bytes:240 (240.0 B) pan0 Link encap:Ethernet HWaddr 5e:25:17:a1:18:ac BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) root@mzeeshan-desktop:/home/mzeeshan# lspci 00:00.0 Host bridge: Intel Corporation Device 0069 (rev 12) 00:01.0 PCI bridge: Intel Corporation Auburndale/Havendale PCI Express x16 Root Port (rev 12) 00:19.0 Ethernet controller: Intel Corporation Device 10f0 (rev 05) 00:1a.0 USB Controller: Intel Corporation Ibex Peak USB2 Enhanced Host Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 1 (rev 05) 00:1c.4 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 5 (rev 05) 00:1c.6 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 7 (rev 05) 00:1c.7 PCI bridge: Intel Corporation Ibex Peak PCI Express Root Port 8 (rev 05) 00:1d.0 USB Controller: Intel Corporation Ibex Peak USB2 Enhanced Host Controller (rev 05) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a5) 00:1f.0 ISA bridge: Intel Corporation Ibex Peak LPC Interface Controller (rev 05) 00:1f.2 IDE interface: Intel Corporation Ibex Peak 4 port SATA IDE Controller (rev 05) 00:1f.3 SMBus: Intel Corporation Ibex Peak SMBus Controller (rev 05) 00:1f.5 IDE interface: Intel Corporation Ibex Peak 2 port SATA IDE Controller (rev 05) 01:00.0 VGA compatible controller: nVidia Corporation GeForce 8400 GS (rev a1) 06:00.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) 06:00.1 Input device controller: Creative Labs SB Live! Game Port (rev 07) 06:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) 06:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) root@mzeeshan-desktop:/home/mzeeshan# Motherboard is Intel DP55WG. I don't know what to do next. Any help will be greatly appreciated.. Thanks

    Read the article

  • fastest flavor of linux for netbook / laptop

    - by Joe
    Hello, Is Ubuntu the best OS for an uber lightweight quick to boot setup for a laptop / netbook? I have a laptop and I'm just looking for the best OS for watching movies / tv shows while traveling. I'm using windows 7 right now so ideally I'd like a barebones fast linux dual booted that uses less battery etc while traveling. I'm not looking for miracles in battery savings but it would be great if I could squeeze an extra 20 minutes out of it. Any suggestions?

    Read the article

  • Is there a simple "Hello World" for making games?

    - by a.m.
    Does anyone know of a simple "Hello World" for making games for ubuntu? I've seen the Getting Started with Quickly video. Any examples for platformers or something like that? EDIT: Just a recap of the answers. Blender Game engine -- Uses python Pygame -- Python MonoGame http://monogame.codeplex.com/ -- some sort of XNA ? QuakeC -- This a Quake flavored C like lang. See: Steel Storm http://one.steel-storm.com/

    Read the article

  • ath9k driver (re)installation

    - by Reitarsky
    I only installed Ubuntu a couple of weeks ago but my friend showed me how to use aircrack.Anyways, he said that i needed to install a special driver for it and while i was trying to install it the instruction told me to uninstal the previous driver but the installation of the new driver didnt work, so now im stuck with no wireless drivers on my netbook.But, when i boot into windows it works fine,any tips? Btw,i'm using an ar2427 wireless adapter on an asus eee pc 1001pq,please reply.

    Read the article

  • Monitor won't enter power save mode

    - by Adam Monsen
    My LCD monitor won't enter power save mode. I've gone into System ? Preferences ? Screensaver, clicked Power Management, then set Put display to sleep when inactive for: to 10 minutes (for both On AC Power and On Battery Power), but the monitor still doesn't enter power save mode, even after an hour. Anyone have ideas on what to try? I'm using Ubuntu 10.04.1 LTS 64-bit desktop on a Dell Latitude E6400 laptop.

    Read the article

< Previous Page | 313 314 315 316 317 318 319 320 321 322 323 324  | Next Page >