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  • ca-certificates-java fails to install

    - by Jonas
    I use a VPS with Ubuntu Server 10.10. I want to use Jetty and run the command sudo apt-get install jetty but it fails because the installation encounted errors while processing ca-certificates-java. I have tried to install the failed package with: sudo apt-get install ca-certificates-java How can I solve this? I have run sudo apt-get update and sudo apt-get upgrade but I get the same errors after that. I have also installed Ubuntu Server x64 on a VirtualBox, but the two Ubuntu Server 10.10 has different kernel versions (2.6.35 on VirtualBox and 2.6.18 on my VPS). And on VirtualBox I can install Jetty without any problems.

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  • How do software updates work?

    - by Jonas
    I would like to know how software updates work for my Ubuntu Server 10.10. I have been recommended to use apt-get install for installing new software and apt-get update for updating software for a Ubuntu Server in production use. Because these packages are tested for Ubuntu in contrast to download source code and compile the software on the box. But on my Ubuntu Server 10.10, I don't get the latest stable version of PostgreSQL (9) or the latest stable version of Nginx (8) using apt-get install. So how is this working, will these software be updated when I later run apt-get update or do I have to later run apt-get install again, or do I have to wait for the next release of Ubuntu to get them? And are patches and security updates managed in the same way? Or can they be updated automatically? If there is such a setting, how do I check what my system is using?

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  • Deleting old tomcat version and setting a new one

    - by Diego
    I had Apache Tomcat installed by apt-get, however I decided to get a newer one, performed apt-get remove tomcat7 and apt-get purge tomcat7. I installed a newer one means the bundled Tomcat Server in NetBeans install. However, Im still seeing the old fashioned page from former Tomcat install: It works ! If you're seeing this page via a web browser, it means you've setup Tomcat successfully. Congratulations! This is the default Tomcat home page. It can be found on the local filesystem at: /var/lib/tomcat7/webapps/ROOT/index.html I already set a different port in the server.xml file and whenever I go that site after executing the startup.sh file with sudo permissions I'm not getting any site like server (new one) isn't running. How can I still be getting the page from old Tomcat install!? When I execute the startup.sh log says all is set OK, so why isn't it working?

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  • Is this overkill? Using MDX queries and cubes instead of SQL stored procedures

    - by Jason Holland
    I am new to Microsoft's SQL Server Analysis Services Cubes and MDX queries. Where I work we have a daily sales table in SQL Server 2005 that already contains an aggregate of sale information per store per day. At this time it contains only 164,000+ rows. We have a sales cube dedicated to this table that about 15 reports are based off of. Now, I should also note that we generate reports based on our own fiscal year criteria: a 13 period year (1 month equals 28 days etc.). Is this overkill? At what point is it justified to begin using SSAS Cubes/MDX over plain old SQL Server stored procedures? Since I have always been just using plain old SQL am I tragically late to the MDX party?

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  • How do software updates work on Ubuntu?

    - by Jonas
    I would like to know how software updates work for my Ubuntu Server 10.10. I have been recommended to use apt-get install for installing new software and apt-get update for updating software for a Ubuntu Server in production use. Because these packages are tested for Ubuntu in contrast to download source code and compile the software on the box. But on my Ubuntu Server 10.10, I don't get the latest stable version of PostgreSQL (9) or the latest stable version of Nginx (8) using apt-get install. So how is this working, will these software be updated when I later run apt-get update or do I have to later run apt-get install again, or do I have to wait for the next release of Ubuntu to get them? And are patches and security updates managed in the same way? Or can they be updated automatically? If there is such a setting, how do I check what my system is using?

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  • SQLAuthority News – 7th Anniversary of Blog – A Personal Note

    - by Pinal Dave
    Special Day Today is a very special day – seven years ago I blogged for the very first time.  Seven years ago, I didn’t know what I was doing, I didn’t know how to blog, or even what a blog was or what to write.  I was working as a DBA, and I was trying to solve a problem – at my job, there were a few issues I had to fix again and again and again.  There were days when I was rewriting the same solution over and over, and there were times when I would get very frustrated because I could not write the same elegant solution that I had written before.  I came up with a solution to this problem – posting these solutions online, where I could access them whenever I needed them.  At that point, I had no idea what a blog was, or even how the internet worked, I had no idea that a blog would be visible to others.  Can you believe it? Google it on Yahoo! After a few posts on this “blog,” there was a surprise for me – an e-mail saying that someone had left me a comment.  I was surprised, because I didn’t even know you could comment on a blog!  I logged on and read my comment.  It said: “I like your script,but there is a small bug.  If you could fix it, it will run on multiple other versions of SQL Server.”  I was like, “wow, someone figured out how to find my blog, and they figured out how to fix my script!”  I found the bug, I fixed the script, and a wrote a thank you note to the guy.  My first question for him was: how did you figure it out – not the script, but how to find my blog?  He said he found it from Yahoo Search (this was in the time before Google, believe it or not). From that day, my life changed.  I wrote a few more posts, I got a few more comments, and I started to watch my traffic.  People were reading, commenting, and giving feedback.  At the end of the day, people enjoyed what I was writing.  This was a fantastic feeling!  I never thought I would be writing for others.  Even today, I don’t feel like I am writing for others, but that I am simply posting what I am learning every day.  From that very first day, I decided that I would not change my intent or my blog’s purpose. 72 Million Views – 2600 Posts – 57000 comments – 10 books – 9 courses Today, this blog is my habit, my addiction, my baby.  Every day I try to learn something new, and that lesson gets posted on the blog.  Lately there have been days where I am traveling for a full 24 hours, but even on those days I try to learn something new, and later when I have free time, I will still post it to the blog.  Because of this habit, this blog has over 72 millions views, I have written more than 2600 posts, and there are 57,000 comments and counting.  I have also written 10 books, 9 courses, and learned so many things.  This blog has given me back so much more than I ever put it into it.  It gave me an education, a reason to learn something new every day, and a way to connect to people.  I like to think of it as a learning chain, a relay where we all pass knowledge from one to another. Never Ending Journey When I started the blog, I thought I would write for a few days and stop, but now after seven years I haven’t stopped and I have no intention of stopping!  However, change happens, and for this blog it will start today.  This blog started as a single resource for SQL Server, but now it has grown beyond, to Sharepoint, Personal Development, Developer Training, MySQL, Big Data, and lots of other things.  Truly speaking, this blog is more than just SQL Server, and that was always my intention.  I named it “SQL Authority,” not “SQL Server Authority”!  Loudly and clearly, I would like to announce that I am going to go back to my roots and start writing more about SQL, more about big data, and more about the other technology like relational databases, MySQL, Oracle, and others.  My goal is not to become a comprehensive resource for every technology, my goal is to learn something new every day – and now it can be so much more than just SQL Server.  I will learn it, and post it here for you. I have written a very long post on this anniversary, but here is the summary: Thank You.  You all have been wonderful.  Seven years is a long journey, and it makes me emotional.  I have been “with” this blog before I met my wife, before we had our daughter.  This blog is like a fourth member of the family.  Keep reading, keep commenting, keep supporting.  Thank you all. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: About Me, MySQL, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority News, T SQL

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  • Mac host and Ubuntu guest on virtual box shared folder issue

    - by Thomas Ryan
    I have set up ubuntu server on virtual box on my mac. I created a shared folder which appears to be saved and visible in the configuration section on virtual box for the ubuntu server machine. My only issue is I don't know where this is or how to access it from inside ubuntu server. Does it get it's own directory or do I have to create some sort of a sym-link? If I do need to manually tell it to look in the mac for the file how do I reference the mac machine?

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  • Why is the hard drive still full after deleting some files?

    - by julio
    I have a server running Ubuntu Server 12.xx. Today some services stopped and I found some messages about full disk, so I ran df -h: Filesystem Size Used Disp Use% /dev/mapper/ubuntu-root 455G 434G 0 100% / udev 1,7G 4,0K 1,7G 1% /dev tmpfs 689M 4,2M 685M 1% /run none 5,0M 0 5,0M 0% /run/lock none 1,7G 0 1,7G 0% /run/shm /dev/sda1 228M 51M 166M 24% /boot overflow 1,0M 0 1,0M 0% /tmp I tried to delete some files remotely from a Windows computer by right-clicking and choosing "delete", but the hard drive remained full. Is there a Trash folder in Ubuntu Server? What could be happening?

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  • How to FTP transfer files to /var/www?

    - by jc.yin
    I'm new to linux and I've set up a web server with Ubuntu Desktop edition so I can practice with the GUI a bit before transitioning to Ubuntu Server. I've already set up a LAMP stack as well as FTP. Now I just need to know how to transfer my web files to the /var/www folder in Ubuntu. Previously I've worked on Mac OS and there's a central server for all the web files where I can FTP to. Anyone able to help me understand how do I FTP to the /var/www folder in Ubuntu? Thanks

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  • How can I run this script on startup, restart, and shutdown?

    - by Exeleration-G
    I'm using Ubuntu 11.10. I've written a script, that synchronises a directory in ~ with a directory on /dev/sda4, using Unison. Before, I had this script running every five minutes with no problems, using crontab. Right now, I want to execute this script at startup, restart and shutdown only. This is what the script looks like: #!/bin/bash unison -perms 0 -batch "/mnt/Data/Syncfolder/" "/home/myname/Syncfolder/" My crontab configuration was as follows: m h dom mon dow command 0,5,10,15,20,25,30,35,40,45,50,55 * * * * sh /usr/local/bin/s4lj.bash Note that I copied the script from ~ to /usr/local/bin/ first, to avoid root problems. I've read How to execute script on shutdown? and How to write an init script that will execute an existing start script?. After doing that, I've done this: I've made s4lj.bash executable, and then copied it to /etc/init.d/. For startup, I've made a symlink in /etc/rc2.d/ to /etc/init.d/s4lj.bash, and renamed it to S70s4lj.bash. For restart, I've made a symlink in /etc/rc6.d/ to /etc/init.d/s4lj.bash, and renamed it to K70s4lj.bash. For shutdown, I've made a symlink in /etc/rc0.d/ to /etc/init.d/s4lj.bash, and renamed it to K70s4lj.bash. Still, the script won't be run in any of these situations. How can I make the script get executed? I'd be happiest with a proper *.conf file in /etc/init. Thanks in advance.

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  • Noob-Friendly Guides to WSGI?

    - by Johnny McKenzie
    world! I have recently been delving into server-side code web development with python, and I have hit a brick wall; you see, I know little about server side code and HTTP (other than the v. basics with php shudder), and all of the docs for wsgi that I have found seem to be for people already well established in the field. Are there any n00b happy guides for server-side scripting (the theory of), or on wsgi out there. Http would be helpful, video tuts are also greatly appreciated. Thanks in advance.

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  • Time jumping forward on NTP failure

    - by Dan
    I have been having some weird problems with NTP for a while. If I use ntpdate to set the time then it sets fine. ntpd then invariably fails to find a server (I have loads configured) and decides to set the clock forward about 5 hours. It's a Xen server with dom0 set to a different timezone so I'm not sure if that is interfering with it. How can I make sure I ignore the dom0 time and have ntpd not change the time if it fails to reach a time server? EDIT: I now do not think it is ntpd giving me problems, I turned ntpd off and it jumped forward seemingly randomly.

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  • AGPL License - does it apply in this scanerio?

    - by user1645310
    There is an AGPLv3 based software (Client) that makes web service calls (using SOAP) to another software (Server - commercial, cloud based). There is no common code or any connection whatsoever between these two except for the web service calls being made. My questions - Does the Server need to be AGPL too? I guess not - but would like to confirm. Let us say the end point URL for the Server can be configured on the Client side (by editing an XML file) to connect it to different Servers (again, there is no connection other than the webservice calls being made) does it require any of these Servers being AGPL? Are there any issues in running the Client as a DLL that is loaded by other commercial applications on users' desktops? Does it require these other applications also to be AGPL? Appreciate your quick response. Pluto!

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  • Oracle VM Moves into Challenger Position in the Latest Gartner Magic Quadrant

    - by Monica Kumar
    Oracle Innovations boost Oracle VM into Challenger Position in Gartner x86 Server Virtualization Infrastructure Magic Quadrant Oracle VM's placement in the just published Gartner x86 Server Virtualization Infrastructure Magic Quadrant affirms the Oracle strategy and is also supported by strong customer momentum gains. Optimizations delivered in Oracle VM releases during this last year along with easy software access and low cost licensing have moved Oracle’s placement into the Challenger quadrant in a very short time. Oracle continues to focus on delivering a strong integrated virtualization with Oracle VM and the managed stack in the following areas: Integrated management with Oracle VM and all layers of the Oracle stack from hardware to virtualization to cloud Application-Driven virtualization with Oracle VM templates for rapid enterprise application deployment Certified Oracle applications on Oracle VM Complete stack solution offering more values to customers Get a copy of the Magic Quadrant for x86 Server Virtualization Infrastructure report to read more about how Oracle VM rapidly moved up in its new position.

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  • Discussion of a Distributed Data Storage implementation

    - by fegol
    I want to implement a distributed data storage using a client/server architecture. Each data item will be stored persistently in disk in one of several remote servers. The client uses a library to update and query the data, shielding the client from its actual location. This should allow a client to associate keys (String) to values(byte[]), much as a Map does. The system must ensure that the amount of data stored in each server is approximately the same. The set of servers is known beforehand by other servers and clients. Both the client and the server will be written in Java, using sockets, threads, and files. I open this topic with the objective of discussing the best way to implement this idea, assuming simplicity, what are the issues of this implementation, performance measurements and discussion of the limitations.

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  • What norms/API for monitoring my servers?

    - by dystroy
    I have a dozen server applications installed on my customers intranets (they can send http requests over the internet but cannot be called from outside). They're written in various technologies, mainly java and Go. I want them to regularly push information about their state towards a central server which is visible on internet. Some of this information is generic (is it ON ?), some is specific (size of a cache in an application for example). The main goal is to be able to make a small web page on which I could instantly check the state of every servers. And maybe later add some kind of notification in case of problem. Obviously I can do this by writing a few dozen lines of code each side (or a little more if I put this data in a database) but in order to ease future evolution, it could be interesting to use some existing norms or libraries. So, what are the current opensource free and light solutions to do this, preferably with no central configuration when I add a server ? I'd prefer a norm over a library.

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  • Upgrading from Express Edition to Standard Edition

    - by TiborKaraszi
    Say you encounter an SQL Server which is Express Edition, and it really should have been some higher edition. Sounds familiar? It is common for me as a consultant to find plenty of SQL Servers at a customer's site. Many of the databases in these will be moved (typically using backup and restore) to a "real" SQL Server. But in some cases, this might not be desirable. You want to convert the whole instance, from Express to a "real" SQL Server edition. I'm attending a great SharePoint course for Daniel...(read more)

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  • Collision detection in multiplayer games

    - by Bane
    This a followup to my previous question: How to implement physics and AoE spells in an MMO game?. There, we concluded that all physics have to be done on the server, and that I should use cylinders for calculations. Now, how can I check for collision detection on a ground-to-player basis on the server? It's fairly easy if the ground is a flat space, I just check if the player's z coordinate is lower than some value and voila, but, what if the map/ground itself is a model? How do I know where hills are on the server-side? How do I know when object collisions happen? I'm using node.js and socket.io.

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  • AGPL License - does it apply in this scenario?

    - by user1645310
    There is an AGPLv3 based software (Client) that makes web service calls (using SOAP) to another software (Server - commercial, cloud based). There is no common code or any connection whatsoever between these two except for the web service calls being made. My questions - Does the Server need to be AGPL too? I guess not - but would like to confirm. Let us say the end point URL for the Server can be configured on the Client side (by editing an XML file) to connect it to different Servers (again, there is no connection other than the webservice calls being made) does it require any of these Servers being AGPL? Are there any issues in running the Client as a DLL that is loaded by other commercial applications on users' desktops? Does it require these other applications also to be AGPL?

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  • How do you select the fastest mirror from the command line?

    - by Evan
    I want to update my sources.list file with the fastest server from the command line in a fresh Ubuntu Server install. I know this is trivially easy with the GUI, but there doesn't seem to be a simple way to do it from from the command line? There are two different working answers to this question below: Use apt-get's mirror: method This method asks the Ubuntu server for a list of mirrors near you based on your IP, and selects one of them. The easiest alternative, with the minor downside that sometimes the closest mirror may not be the fastest. Command-line foo using netselect Shows you how to use the netselect tool to find the fastest recently updated servers from you -- network-wise, not geographically. Use sed to replace mirrors in sources.list. The other answers, including the accepted answer, are no longer valid (for Ubuntu 11.04 and newer) because they recommended Debian packages such as netselect-apt and apt-spy which do not work with Ubuntu. Use sed to replace mirrors in sources.list sudo sed -i -e 's#us.archive.ubuntu.com/mirror.math.ucdavis.edu#g' /etc/apt/sources.list

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  • Creating a new DHCP lease databse

    - by Stee1bear
    I have Ubuntu Server set up as my DCHP server. We have had it install for a few year and our dchp.lease file contain over 4000 entries. I am wanting to clean it up and basically start a new lease file to get current list (@1500 entries). I have read the walk through on how to make a new lease file and get it started, which leads me to this question. Will the dhcp server try to give each unit new IP address or will it build the new database with the IP addresses that the the units report to it?

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  • How should my local git workflow work?

    - by Anonymous -
    At home, I have a server that is running some software (on a LAMP stack, but only accessible internally). I have another machine and a laptop that I both use for developing said software. What is the best workflow for me? Should I have a repository on my local server, create a live branch, staging branch and development branch, then checkout the development branch from my laptop/development PC to work on, commit that back when I'm done, then merge the development branch with the staging branch for testing, before further merging to the live branch? Would I simply checkout the production branch to my /www/var/ on my server? Or am I thinking/going about this all wrong? Thanks.

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  • How to reduce the time it takes to load my web game? [closed]

    - by Danial
    I created a puzzle game with Unity and uploaded it to one server. This works fine, but I bought a new server and uploaded my game to it as well. There, the loading time is much longer. These are the servers: http://pinheadsinteractive.com/Mozzie/ (fast) http://operation-mozzie-free.com/ (slow) The Unity files are exactly the same from one server to the next. My client is dissatisfied with the new, slow loading time. So, how can I reduce the time my Unity game takes to load? Even in some cases they faced the problem that they could not load the game at all. For the the moment, I'm using an iframe on the new sever as a workaround, but the issue still remains unsolved.

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  • Suggest windows webhost provider for following requirements.

    - by op_amp
    Hi, We have a asp.net MVC3 based web app which uses SQL SERVER 2008 for database. Also, we have a client side desktop application which also uses SQL SERVER 2008. While developing the system, we are able to Sync tables using SQL SERVER Replication feature. Now, we want to host our site on a webserver but we are clueless about it. If anyone of you have a similar system working then please suggest a cheap but reliable webhost which supports Replication. Initially there will be approximately 10 or less clients who will perform replication 2 or 3 times a day. The size of the database will be less than 4GB for sure.

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  • Changing to PHP 5-5.5

    - by Xlaltra
    I've been using PHP-5.4.3 for about a month now, and today, I decided to make a switch to PHP-5.5.5, I downloaded the source code, and placed it in C:/php (also renaming the folder php-5.5.5 to php) and I added server variables, as usual C:/php/ <-- but here I got stuck. Because, usually I appended the php.exe at the end, which was found inside the PHP folder so, I could be able to access PHP from the command line, or start the built-in server, but now, I can't find this file, and I can't find a way to start the server from the command line either. Anyone help.

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