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  • Plymouth fails to start on boot

    - by thomasfedb
    On boot I get this error: [FAILED] Failed to start Wait for Plymouth Boot Screen to Quit. When I check what systemctl status plymouth-quit-wait.service says I get: [root@zanak thomasfedb]# systemctl status plymouth-quit-wait.service plymouth-quit-wait.service - Wait for Plymouth Boot Screen to Quit Loaded: loaded (/usr/lib/systemd/system/plymouth-quit-wait.service; static) Active: failed (Result: timeout) since Sat, 01 Dec 2012 19:19:48 +0800 Main PID: 866 CGroup: name=systemd:/system/plymouth-quit-wait.service This is on a Fedora 17 system, with nVidia closed source drivers installed via rpmfusion.

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  • Free alternative to Audio Hijack Pro?

    - by Tim Visher
    I'd like to record what I hear coming out of the main audio jack on my Mac. Nothing fancier than that. I'm aware of Audio Hijack Pro but that really does much more than I'm looking for and comes with a steep price tag. If it's the only tool that can do the job that's fine but I was hoping to find something that simply captured all audio coming from the computer and dumped it to a file. Thanks in advance!

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  • Good tutorial / book / reference material for Linux Configuration Files.

    - by claws
    Hello, I'm a windows user recently moved to linux. The main problem is that not all settings can be changed with GUI interfaces. I like the idea of configuration files. But the problem is figuring out which configuration files must be edited to change certain setting. Is there any good (or best :D) material (book/article/ref sheet) which explains these things.

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  • Should use EXT4 or XFS to be able to 'sync'/backup to S3?

    - by Rafa
    It's my first message here, so bear with me... (I have already checked quite a few of the "Related Questions" suggested by the editor) Here's the setup, a brand new dedicated server (8GB RAM, some 140+ GB disk, Raid 1 via HW controller, 15000 RPM) it's a production web server (with MySQL in it, too, not just serving web requests); not a personal desktop computer or similar. Ubuntu Server 64bit 10.04 LTS We have an Amazon EC2+EBS setup with the EBS volume formatted as XFS for easily taking snapshots to S3, via AWS' console. We are now migrating to the dedicated server and I want to be able to backup our data to Amazon's S3. The main reason being the possibility of using the latest snapshot from an EC2 instance in case of hardware failure on the dedicated server. There are two approaches I am thinking of: do a "simple" file-based backup with rsync, dumping the database' and other files, and uploading to amazon via S3 API commands, or to an EC2 instance, or something. do a file-system "freeze" (using XFS) with the usual ebs/ec2 snapshot tool to take part of the file system, take a snapshot, and upload it to Amazon. Here's my question (or series of questions): Can I safely use XFS for the whole system as the main and only format on the dedicated server? If not, is it safe to use EXT4? Or should I use something else? would then be possible to make snapshots of the system to upload to Amazon? Is it possible/feasible/practical to do what I want to do, anyway? any recommendations? When searching around for S3/EBS/XFS, anything relevant to my problem is usually focused on taking snapshots of a XFS system that is already an EBS volume. My intention is to do it in a "real"/metal dedicated server. Update: I just saw this on Wikipedia: XFS does not provide direct support for snapshots, as it expects the snapshot process to be implemented by the volume manager. I had always assumed that I could choose 2 ways of doing snapshots: via LVM or via XFS (without LVM). After reading this, I realize these 2 options are more like it: With XFS: 1) do xfs_freeze; 2) copy the frozen files via, eg, rsync; 3) unfreeze xfs With LVM and XFS: 1) do xfs_freeze; 2) make a binary copy of the frozen fs via lvcreate and related commands; 3) unfreeze xfs; 4) somehow backup the LVM snapshot. Thanks a lot in advance, Let me know if I need to clarify something.

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  • how to report some illegal website to FBI or crime department [closed]

    - by steve
    hello all I asked this question on stackoverflow and they suggested this I dont know whether i can ask this question here or not I am finding many web forums supportingstealing of personal info like creditcards and they selling at 2$ each and thye making gift vouchers of main auction websites and selling them 500$ at 10$ (these guys looping people hardwork ) where can i report these type of sites if i found in internet ? can anyone please tell me exactly where can i report regards steve

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  • Learning about BIOS memory, instructions and code origins

    - by m3taspl0it
    I'm learning about the BIOS and have a few questions. What is meant by, "This is the last 16 bytes of memory at the end of the first megabyte of memory"? The first instruction of BIOS is jump, which jumps to the main BIOS program, but where does it jump? Where does the original BIOS code originate? I'm also interested in POST? How are POST signals executed by the processor?

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  • Two DHCP bindings

    - by VoVA
    Dear friends ! Please help me resolve very stupid question: Here is situation: OS: 2008 R2, DHCP service, 2 NICs So, the main goal is to make two scope on DHCP service, each of scope will link to each of NIC. Any ideas ? O_o Thanks ! PS Don't ask to reinstall onto Linux,FreeBSD :)

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  • Unicode support between different OS and browsers

    - by Martin Trigaux
    I would like to develop a web application that uses unicode. The problem is that I don't know if the user supports or not the full unicode set. First question : is the unicode support depends on the browser or the operating system ? Second question : how well main browsers/OS behave ? To goal is to find big subsets of mainly supported unicode characters (with the fact that I accept to not support old tech) Thank you

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  • Suggestions for splitting server roles amongst Hyper-V virtual servers / RAID6 or RAID10? / AppAssure

    - by Anon
    We have 2 Hyper-V hosts at present running 1 virtual server that was converted from a physical box running all roles. My plan is to split the roles over various virtual machines, upgrading to the latest software versions as I go, and use the backup server as a standby in case the main server fails. AppAssure backup software has a feature called Virtual Standby, so the VHD's can be ready to be fired up on the backup server if necessary. Off-site backups will be done via external USB drive for now. I'm just seeking some input/suggestions into how I'm planning to split the roles out amongst various virtual servers. Also, I'm curious how to setup the storage on the servers. We do not have any NAS's, SAN'S or any budget for this. What would the best RAID level be to use? I'm thinking either RAID6 (which is currently used) however I'm concerned about the write speeds, or RAID10 but again I'm worried that I can only lose 1 drive (from the same mirror) as opposed to any 2 with RAID6. I realise I have a hot swap for this, but what if a further drive fails during a rebuild? Is the write penalty of RAID6 worth the extra reliability over RAID10? Or will it be too slow with all the roles I am planning, therefore RAID10 is my only real option? The reason for the needed redundancy is I am the only technician and I'm not always on-site. Options I've considered: 1) 5 drives in RAID6 set, 200gb for host OS, rest for VM storage. 1 drive for hot swap - this is how it is currently setup 2) 4 drives in RAID10 set, 200gb for host OS, rest for VM storage. 2 drives for hot swap 3) 4 drives in RAID10 set for VM storage, 2 drives in RAID1 set for host OS. No drives for hot swap - While this is probably the best option with the amount of drives I have, I don't like the idea of having no hot swap 4) 3 drives in RAID6 set for VM storage, 2 drives in RAID1 set for host OS. 1 drive for hot swap All options give us enough storage capacity for our files, etc. We don't have any budget for extra drives or extra hot swap HD chassis for the servers. We have about 70 clients and about 150 users. MAIN SERVER Intel Xeon 5520 @ 2.27 GHz (2 processors) 16GB RAM 6 x 1TB Seagate Barracuda ES.2 Enterprise SATA drives Intel SRCSATAWB RAID controller Virtual machine workload using Hyper-V on Windows Server 2008 R2: DC01 - Active Directory Domain Controller / DNS server / Global catalog - 1GB RAM DC02 - Active Directory Domain Controller / DNS server / Global catalog - 1GB RAM Member Server - DHCP server, File server, Print server - 1GB RAM SCCM Member Server - 4GB RAM Third Party Software Member Server - A/V server, Ticketing software, etc - 4GB RAM Exchange 2007 - 4GB RAM - however we are probably migrating to a hosted solution, therefore freeing up resources BACKUP SERVER Intel Xeon E5410 @ 2.33GHz (2 processors) 16GB RAM 6 x 2TB WD RE4 SATA drives Intel SRCSASRB RAID controller Virtual machine workload using Hyper-V on Windows Server 2008 R2: AppAssure backup software - 8GB RAM

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  • Managing multiple independant domains with Google Apps

    - by Saif Bechan
    I am currently running a server where I have multiple domains with all of them running there own mail server. My plan is to outsource this whole email service and have Google, or competitor, do this for me. Let me start by telling you the setup I have now and want to migrate to Google. Initial setup I have a main domain where I run my server, and my nameserver. This is an important domain because this holds the connection with all my internal applications. For example log messages, cronjob messages, and virus-scan messages are sent to this domain. This email is also registered at my registrar and I use it to communicate with my ISP. Next I run a few independent websites that all need their independent email addresses. This can be on shared space, I don't mind. 1 Gig will be enough for everything I am going to do. Summary: superdomain.com (which only has a catchall for internal use and communication with my ISP) cars.com (independent) flowers.com (independent) foods.com (independent) I am going to be the admin for all of this. The independent domains don't need there own admin panel, they just need email addresses like info@ support@, etc. I do all the managing and they just send and receive emails using the accounts i give them. All of the websites have there different staff that use the accounts. Tried so far I have registered my superdomain, but I can only add aliases to the main domain. If I make all the other domains aliases the emails from [email protected] and [email protected] will have the same inbox. I want them to be separate. is the only way to achieve this by creating an account for each domain? And if so, is there no way of creating a superdomain account where I can edit all these accounts easily without having to log in 4 different places to get my work done. I have searched the Google help forums, and posted questions but without any results so far. Questions Can anyone please give me some advice on what to do. I currently use the free program Google has.

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  • cannot move to a subdirectory of itself

    - by fire
    I have 2 folders: /home/sphinx/articlesdb/ and: /home/sphinx/tmp/articlesdb/ I want to move and overwrite all of the files from tmp into the main folder. I am currently using: mv -f /home/sphinx/tmp/articlesdb/ /home/sphinx/ But I get this error: mv: cannot move `/home/sphinx/tmp/articlesdb/' to a subdirectory of itself, `/home/sphinx/articlesdb' It needs to do this as fast as possible so I don't want to copy. Should I remove /home/sphinx/articlesdb/ completely and then run the mv command or do I just need to tweak the command slightly?

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  • What are incentives (if any) to use WinRT instead of .Net?

    - by Ark-kun
    Let's compare WinRT with .Net .Net .Net is the 13+ years evolution of COM. Three main parts of .Net are execution environment, standard libraries and supported languages. CLR is the native-code execution environment based on COM .Net Framework has a big set of standard libraries (implemented using managed and native code) that can be used from all .Net languages. There are .Net classes that allow using OS APIs. WPF or Silverlight provide a XAML-based UI framework .Net can be used with C++, C#, Javascript, Python, Ruby, VB, LISP, Scheme and many other languages. C++/.Net is a variation of the C++ language that allows interaction with .Net objects. .Net supports inheritance, generics, operator and method overloading and many other features. .Net allows creating apps that run on Windows (XP, 7, 8 Pro (Desktop and Metro), RT, CE, etc), Mac OS, Linux (+ other *nix); iOS, Android, Windows Phone (7, 8); Internet Explorer, Chrome, Firefox; XBox 360, Playstation Suite; raw microprocessors. There is support for creating games (2D/3D) using any managed language or C++. Created by Developer Division WinRT WinRT is based on COM. Three main parts of WinRT are execution environment, standard libraries and supported languages. WinRT has a native-code execution environment based on COM WinRT has a set of standard libraries that more or less can be used from WinRT languages. There are WinRT classes that allow using OS APIs. Unnamed Silverlight clone provides a XAML-based UI framework WinRT can be used with C++, C#, Javascript, VB. C++/CX is a variation of the C++ language that allows interaction with WinRT objects. Custom WinRT components don't support inheritance (classes must be sealed), generics, operator overloading and many other features. WinRT allows creating apps that run on Windows 8 Pro and RT (Metro only); Windows Phone 8 (limited). There is support for creating games (2D/3D) using C++ only. Ordered by Windows Team I think that all the aspects except the last ones are very important for developers. On the other hand it seems that the most important aspect for Microsoft is the last one. So, given the above comparison of conceptually identical technologies, what are incentives (if any) to use WinRT instead of .Net?

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  • Changing file browser in Scientific Linux

    - by karolg
    I use Scientific Linux Release 6.1 (Carbon) with GNOME 2.28.2. When I double-click on a folder on the Desktop it is opened in "File Browser". When I open a folder via "Places" on the Main Menu Bar, the folder is opened in "File Manager". I dislike "File Manager" and I don't understand why there are two different programs (file managers) running depending on how I open a folder. How can I get rid of "File Manager"?

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  • Free alternative to Audio Hijack Pro?

    - by Tim Visher
    I'd like to record what I hear coming out of the main audio jack on my Mac. Nothing fancier than that. I'm aware of Audio Hijack Pro but that really does much more than I'm looking for and comes with a steep price tag. If it's the only tool that can do the job that's fine but I was hoping to find something that simply captured all audio coming from the computer and dumped it to a file. Any suggestions?

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  • Scaling a video processing application on EC2?

    - by Stpn
    I am approaching the need to scale a video-processign application that runs on EC2. So far the setup is one machine: Backbonejs frontend Rails 3.2 Postgresql Resque + S3 for storage The flow of the app is as follows: 1) Request from frontend. Upload a video. 2) Storing video 3) Quering external APIs. 4) Processing / encoding videos. 5) Post to frontend. I can separate the backend and frontend without any problems, but when it comes to distributing the backend between several servers I am a bit puzzled. I can probably come up with a temporary solution (like just duplicating apps making several instances), but since I don't really have expertise in backend system administration, there can be some fundamental mistakes.. Also I would rather have something that is scalable. I wonder if anyone can give some feedback on the following plan: A) Frontend machine. Just frontend, talks to backend via REST Api of sorts. B) Backend server (BS), main database. Gets request from 1), posts to 2) saves uploads to 3) C) S3 storage. D) Server for quering APIs. Basically just a Resque workers, that post info back to 2) E) Server for video encoding. Processes videos uploaded on 3) and uploads them back. So I will have: A)frontend \ \ B)MAIN_APP/DB ----- C)S3 Storage (Files) / \ / / \ / D)ExternalAPI_queries E)Video_Processing (redundant DB) (redundant DB) All this will supposedly talk to each other via HTTP requests. My reason for this is that Video Processing part is really the most resource-intensive and I would just run barebones application that accepts requests and starts processing them. Questions: 1) In this setup I will have the main database at B) and all other servers will communicate with it via HTTP requests (and store duplicates of databases also I guess..for safety reasons). Is it the right approach or should I have 1 database that everyone connects to (how then?) 2) Is it a good idea to separate API queries from Video Processing part? Logically they are very close (processing is determined by the result of API queries), but resource-wise Video Processing is waaay more intensive. 3) what should I use to distribute calls between backend apps based on load?

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  • Is it possible to connect machine to esxi Virtual Machine directly

    - by Mirage
    I have one server and i want to install VMs on that. Now i want to use one of VM as my main OS and i want that when i turn on second computer then that VM OS opens up. One way is to use remote desktop connection but for that i need to install OS on Second computer. Is there any way to directly link Second computer to VM on Server so that i don't have to install OS

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  • Clearing cmd.exe memory or cache

    - by Abs
    The main question is how do I clear the command prompts memory or cache. I ran this on cmd.exe svn info <URL> Which prompted me a for a username and password which I entered. I then logged off and logged back in immediately and I entered that same command and I wasn't asked for a username and password. I want to clear this to test something without restarting my server! How can I do this?

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  • Postfix configuration for load balancing

    - by Naval
    Server A should take mails from a php script which is running on other machine . Now server A should distribute all this mail to its remaining 3 Nodes(3 server B,C,D for relaying mails which have different IP and Domain name) here the architechture which i want ---B php script(for mail generation)----server A(postfix mta) ---C ---D how should i configure postfix main.cf file for this ? plz help me out in this.

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