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• How To Create a Personal VM Server

  - by Danish

  I have a personal Ubuntu server at home for my various personal development needs. I often spend time to configure it for various purposes e.g. for serving a blog or my mercurial repositories etc. However, I am getting very interested in pre-packaged linux appliances available e.g. TurnKey linux etc. It takes no effort to get an appliance up and running! I was wondering if I could make my home server into VM server, where I can run multiple VMs for various needs. The server does not have a screen, hence I would like to be able to manage my VMs from the web or console I guess in short, I am asking if its possible to have my own personal, light weight Amazon EC2. If yes, how can I set it up? Is there an Ubuntu derived distro available for this? OR can I install a couple of packages and get this running?

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• How to create a shared folder using command line on a server

  - by sadmicrowave

  After following the tutorial here I ran into a problem. Here is what I did. On my server I installed nfs-kernel-server and edited the /etc/exports file to include the folder I want to share: /var *(rw,sync) On my client machine I edited my fstab file to include share: //128.251.xxx.xxx/var/ ~/uslonsweb003 nfs #username=[username],password=[password], 0 0 Entered command: sudo mount -a which gives this error: mount.nfs: remote share not in 'host:dir' format Where did I go wrong with this setup? Also if there is a better way (using command line) to setup a folder share on an Ubuntu 10.10 server that will be accessed by other linux and windows machines please let me know. UPDATE: The mapped drive is now not letting me create,edit,delete files or folders (readonly access) my configuration is as follows: client fstab file: 128.251.xxx.xxx:/var /home/coreyf/uslonsweb003 nfs rw,hard,intr, 0 0 server exports file: /var *(rw,no_root_squash,sync,no_subtree_check) UPDATE 2: Using Allans solution my drive mounted correctly however after putting rw,intr as my additional parameters I cannot create, edit and delete folders/files.

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• DLNA Media Server and external subtitles

  - by Lobo

  I'm looking DLNA Media Server with the features above: Support most extended video formats. Reproduce external subtitles in client side. Open source or freeware software. USE CASE: DLNA Media server installed and running on my PC. In my PC, I have /home/myprofile/videos directory where I store all my video files. For example, game.of.thrones.s09.e06.mpg and game.of.thrones.s09.e06.srt Turn on my Smart-TV, connect to my DLNA Media Server (installed on my PC) Play game.of.thrones.s09.e06.mpg file and see the subtitles overlapped. Finally, my question: Is there some DLNA Media server that provides that use case?. Thank you.

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• Migrating Ruby on Rails Website to New Server (Linux)

  - by GarytheWorm

  I have an existing website that is a Ruby on Rails project. I have another server i need to transfer the existing website too. The server i wish to transfer too was originally hosting the website so has the necessary gems/configuration are installed. I have tar the current releases shared dir from the old server and transfered them over to the new server. I have then unpack the tar in the apps directory to the new location which is a different URL path. My problem is now as you can see below that the path on the current - is pointing to the old url. ( i ran ls -la to see owenership) How can i change this current path to read with my new web address? current releases shared sitepack.tar root@server1:/var/www/clients/client1/NEWSITE.com/web/apps# ls -la current - /var/www/OLDSITE.com/web/apps/releases/20120130171636 root@server1:/var/www/clients/client1/NEWSITE.com/web/apps#

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• books on web server technology [closed]

  - by tushar

  i need to understand the web server technologies as to how are the packets recieved how does it respond and understand httpd.conf files and also get to undertand what terms like proxy or reverse proxy actually mean. but i could not find any resources so please help me and suggest some ebook or web site and by server i dont mean a specific one (apache or nginx..) in short a book on understanding the basics about a web server i already asked this on stackoverflow and webmasters in a nutshell was the answer i got and they said its better if i ask it here so please help me out

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• udev rule gives wrong group ownership

  - by Tirithen

  I have added a udev rule for my Arduino, but the symlink gets the ownership "root root" instead of "root dialout". $ cat /etc/udev/rules.d/47-Arduino.rules SUBSYSTEM=="usb", ATTR{idVendor}=="2341", ATTR{idProduct}=="0001", MODE="0666", SYMLINK+="arduino", GROUP="dialout" $ ls -la /dev/ar* lrwxrwxrwx 1 root root 15 sep 8 11:02 /dev/arduino -> bus/usb/003/007 $ ls -la /dev/bus/usb/003/007 crw-rw-r-- 1 root dialout 189, 262 sep 8 11:12 /dev/bus/usb/003/007 My user is a member of the group "dialout" but I still get "Permission Denied" error when I'm trying to communicate with the device. There are also no problems when I'm using the "default" device "/etc/ttyACM3". $ ls -la /dev/ttyACM3 crw-rw---- 1 root dialout 166, 3 sep 8 11:12 /dev/ttyACM3 I have tried to restart both the udev service and reboot my computer. How can I fix this?

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• udev rule group ownership not working

  - by Tirithen

  I have added a udev rule for my Arduino, but the symlink gets the ownership "root root" instead of "root dialout". $ cat /etc/udev/rules.d/47-Arduino.rules SUBSYSTEM=="usb", ATTR{idVendor}=="2341", ATTR{idProduct}=="0001", MODE="0666", SYMLINK+="arduino", GROUP="dialout" $ ls -la /dev/ar* lrwxrwxrwx 1 root root 15 sep 8 11:02 /dev/arduino -> bus/usb/003/007 $ ls -la /dev/bus/usb/003/007 crw-rw-r-- 1 root dialout 189, 262 sep 8 11:12 /dev/bus/usb/003/007 My user is a member of the group "dialout" but I still get permission denied error when I'm trying to communicate with the device. There are no problems when I'm using the "default" device "/etc/ttyACM3". $ ls -la /dev/ttyACM3 crw-rw---- 1 root dialout 166, 3 sep 8 11:12 /dev/ttyACM3 I have tried to restart both the udev service and reboot my computer. How can I fix this?

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• sudo: unable to resolve host ubuntu-server

  - by Manfred Van de Waarsenburg

  I have a problem with sudo. Every time when I trying to use sudo I got this problem: sudo: unable to resolve host ubuntu-server My /etc/hosts file: 127.0.0.1 localhost 127.0.1.1 ubuntu-server # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes FF02::2 ip6-allrouters /etc/hostname gives: ubuntu-server I think there is some other setting that causes the unable to resole host, but I cannot find these.

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• Need a remote desktop to a headless server without logging in first

  - by user17971

  I've been using Linux for many years now but only to run servers. Over the last few days I've been struggling with a technical / configuration issue which I hope someone can help with. I've installed / un-installed many packages but just can't figure out what the "right" way of doing this is. The requirement seems simple Server runs Ubuntu 10.04 with xubuntu and SSH (I do NOT want to connect any screen, keyboard or mouse to the server) I have Windows 7 machine with putty on it and logging in to the server using SSH is fine I want to run an xterminal session on my Windows machine. Amongst the things I've tried is VNU but I can't get it to work because I believe you have to login on the server first. Thanks in advance

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• Live-Ubuntu 12.04 ran fine, now stopped booting!

  - by user89743

  I've seen similar problems to this several times in the forum, but mine is a bit different, so the other posts I saw were no help to me. When I boot Ubuntu 12.04 64-bit from live-SD-card (3GB persistence) I suddenly get this error: (initramfs) mount: mounting /dev/loop0 on //filesystem.squashfs failed: Invalid argument Can not mount /dev/loop/0 (/cdrom/casper/filesystem.squashfs) on //filesystem.squashfs (it says I can type "help" for commands, but I don't know anything about how to go from there, totally new to linux) The reason I say my case is different is because my Ubuntu worked fine for over a week, even pretty fast, and now this problem happened. Before that I used to run my live ubuntu from USB sticks but that was slower (especially when booting which took 15 minutes from USB stick!). Also I kept getting the same above problem after a while when booting and had to re-create a live USB linux several times. Installing on harddrive is not an option because my harddrive has physical damage and getting a replacement will take a while, therefore I can only use live-USB or live-SD-card Ubuntu. As I said I used Ubuntu without problems for more than a week, before that as well for several weeks on USB sticks, but the above problem occured sooner or later. This time I paid attention to when it happened: I was rebooting my computer (HP 620 laptop, 4 GB RAM, 64 bit system) from SD flash card and when I was booting I selected F6 and then the first option "no acpi" or something like that...I had used it before and noticed it slowed down the time it took Linux to use. This time it caused this error. Now even when I boot normally/default I get this error. Now I'm accessing Ubuntu from my USB stick without persistence file, when I check my SD card, all the files mentioned in the error message are there and the filesystem.squashfs is 691.2 MB so nothing seems to have been deleted by accident. (I have already made many changes/downloaded programs to my SD card persistent Ubuntu and would hope to loose them, since downloading is expensive for me, and since the problem seems to re-occur...) Can anyone help me, preferably without having to create another startup disk on my SD card? I'm totally new to this. Sorry for the long posts, just didn't know what info is relevant and what isnt! Kon

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• Windows Azure Server Supported by RealCloud Pro

  CopperEgg CEO Scott Johnson commented on the new release: RevealCloud Pro is quickly gaining traction with our customers deploying and managing services in the cloud, virtual environments and data centers. The addition of server monitoring for Windows Azure addresses the needs of developers building services on the Azure platform as well as hybrid environments, who are looking for a robust server monitoring solution that is quickly deployed, easy to use and provides instant insight into server health. The key benefits provided by RevealCloud Pro's server monitoring begin with its flexibilit...

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• SQL Server 2008 SP3 and HP Database Enterprise Appliance

  The list of updated features begins with an overall improved upgrading experience from SQL Server's older versions to the latest SQL Server 2008 SP3 edition. Microsoft has implemented measures that provide enhanced performance and reliability while making the upgrade as well. Logs in SQL Server Integration Services will display the aggregate number of rows transmitted in Data Flows, and enabling the Shrink Database option will produce enhanced warning messages when maintenance plan development takes place. Microsoft's blog post continues with the list of SP3 upgrades, noting that users sho...

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• Remote Access to Owncloud Server

  - by John

  I'm currently trying to setup my own own-cloud server, and I've got it fully installed, configured, and accessible from within my own local network. I cannot figure out how to access it from the outside. So far I've: Successfully setup port-forwarding on my local router. I've done so via 'single port forwarding' and 'port range forwarding' Ports 80, 443, 3306 (Apache-Full and MySQL) Successfully obtained my external IP address. I've also tested this magic number from within the network at #insertIPhere/owncloud and it did work. Successfully setup the server using SQLite Successfully setup the server using MySQL Created the following exceptions in my firewall: Allow In Port 80 (Apache Full) Allow In Port 443 (Apache Full) Allow In Port 3306 (MySQL) Tried connecting from several different remote networks, as to troubleshoot something on their end As far as trying to access it, I'm doing so through Google-Chrome and Mozilla Firefox trying to reach the server through #insertIPhere/owncloud using the above public IP address. So what have I missed, and how do I access my server from outside? Thanks in advance for your help and time, and I apologize in advance for what will probably result in my noobish mistake in networking. I've looked at the official documentation. And also this question here.

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• backup dedicated server runing ubuntu 10.04 and plesk 11.01 prior to update os to uduntu 12.04

  - by timmob

  i would like to backup my dedicated server which is my web server hosting various sites and email, so that I can update the os to Ubuntu 12.04, and basically restore back to 10.04 if things go wrong. I have a local machine that I can install 12.04 onto an then I was going to rsinc between the two, but I am fairly clueless when it comes to linux. I can ssh into the remote server and gain root access. can anyone explain if i need to backup the whole server hard drive or just some of the files? Thanks Timmo.

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• Creating Ubuntu bootable disk on my phone

  - by Aerus

  I want to install Ubuntu 12.04 on my laptop but because I have a complete shortage of writable CDs and DVDs, I wan't to create a bootable USB stick (on Windows). However, the only USB stick I currently have lying around is my HTC phone (HTC Touch HD with 8Gb memory). I was following the Ubuntu guide to create a bootable usb stick with pendrivelinux, however in the last step it shows me that it wants to do more than just copying the .iso file to the USB drive: My question: can I safely proceed without wiping the current OS off my phone (Windows Mobile 6.1) and use it to install Ubuntu?

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• can't get past the login screen

  - by Greg

  Using a brand-new install to a usb stick of 12.04 lts installed by Universal USB Installer 1.8.9.8. I log in as "ubuntu" with a blank password, the console appears for a second or two with text scrolling past and then it returns to the login page. I've used the same usb stick on several computers with the same results, so it doesn't appear to be a hardware/driver issue. I have not tried installing to the hard drive, because I wanted to try it out first.

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• install a specific ubuntu version

  - by Dariopnc

  What I'd like to do: have Ubuntu installed on a USB drive and from there install any ubuntu version on a hdd. This is kinda different from using usb-creator because I'd like to have a persistent ubuntu install on the USB drive and not upgrade it every 6 months. From there I'd like to be able to install the most recent ubuntu version. I think it's just a matter of configuring ubiquity, but don't know if this is the case and how exactly do this.

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• Ubuntu Desktop or Ubuntu Server?

  - by Twinborn

  Hello everyone. I'm new to Linux and Ubuntu is my first distribution. I have chosen Ubuntu because I want to learn more about Linux. I'm under time constraints and need to setup a server as soon as possible. I have Ubuntu Desktop and Ubuntu Server setup via VMWare Fusion on my MacBook Pro. I installed everything I need on the server edition, but it feels way over my head. I have no experience with CLI. Can I just use Ubuntu Desktop to run my Web server for the time being while I learn CLI? I basically need to run Apache, PHP, MySQL, phpMyAdmin, Python and Django. Should I be using MAMP? Thanks.

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• Ubuntu Server Configuration -- Harddrive Partitioning

  - by black_bird

  Currently Ubuntu Server is telling me that when I'm making a new partition for Ubuntu Server on this NTFS 1TB HD that I currently have installed to the hardware, that the partition must be a minimum of 52% of the hard drive space or ~521GB. I'm almost positive that this will run into other data, as I have quite a bit of stuff on the hard drive currently. Can I not make a Ubuntu server partition on that hard drive at like 100GB or something? Why does it require so much?

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• Create a Monitoring Server for SQL Server with PowerShell

  At some point you are going to need a notification system for a range of events that occur in your servers. Laerte Junior shows how you can even set up temporary or permanent alerts for any WMI events to give you a system that fits your server environment perfectly. Get Smart with SQL Backup Pro Powerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school Discover why.

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• Window Functions in SQL Server

  When SQL Server introduced Window Functions in SQL Server 2005, it was done in a rather tentative way, with only a handful of functions being introduced. This was frustrating, as they remove the last excuse for cursor-based operations by providing aggregations over a partition of the result set, and imposing an ordered sequence over a partition. Now, with SQL Server 2012, we are soon to enjoy a full range of Window Functions. They are going to make for some much simpler SQL queries.

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• reinstall windows 8 on clean ubuntu hard drive

  - by Vegard Lokreim

  For a moth ago, i took a clean install of ubuntu 13.10, i formated the entire hard drive that contained windows 8 and installed ubuntu. Now i want to reinstall windows 8, but when i boot up with a bootable usb, my computer wont recognize the bootable usb unless its a bootable linux usb... i have done a little bit research and i think it have something with MBR to do, but i have no idea what to do! Please help :)

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• Resolution text mode Removing ubuntu-server 10.04

  - by Fabin

  Hello Friends .. I have ubuntu-server on my server and also in terminals and an application squeegee in text mode. This version 9.10 of ubuntu-server system came with a resolution at the terminal, which makes use of the application, the fonts (letters) are very small. Please, if anyone knows how to take the resolution of text mode 10:04 ubuntu server, tell me. To illustrate. I need the resolution is to get as Debian, large fonts! Still using version 9.04, it was the last that still has not implemented the resolution at the terminal (text mode). I remind you that non-use graphical interface. Only text mode. Thanks.

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• Which server to choose? [closed]

  - by Devbag

  I have telecom applications that I want to run on a server(I have chosen HP server), there are so many types of hp servers i.e DL380 (g3,g4 ....), blade , entry level server. I've surfed the web and nothing is helping me choose one that suites me, what I have is telecom application made in PHP and C. I've found many used DL380 G3,G4 and G5 on craiglist with really good prices, some of them have misssing HD, RAMs and some of them have nothing missing. Can you please help me choose wisely. Thanks,

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• San Disk Cruzer Glide 32 GB and 8Gb can't be copied to.

  - by chrisfs

  I have Ubuntu 12.04 with a kernal of 3.0.0-17-generic (#30-Ubuntu SMP Thu Mar 8 17:34:21 UT When I tried to copy files to a San Disk Cruzer 8gb usb drive, the copy process went a short way and then completely stopped. Although I have copied items to the USB drive from my PC before, this time the files would start quickly enough but always stop shortly after starting. I figure the 8 gb was bad, so I went and got a brand new 32 gb usb drive from a store, unpackaged it and plugged it in, still unable to copy to the usb drive. So is there some kind of incompatibility or issue where San Disk Cruzer Glides are no longer supporting it. Is there an obscure setting that I am missing? Any help would be appreciated

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