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  • Linux Best Practices

    - by Zac
    I'm a life-long Windows developer switching over to Linux for the first time, and I'm starting off with Ubuntu to ease the learning curve. My new laptop will primarily be a development machine: 6GB RAM, 320 GB HD. I'd like there to be 2 non-root users: (a) Development, which will always be me, and (b) Guest, for anyone else. I assume the root user is added by default, like System Administrator in Windows. (1) I'd like to mount /home to its own partition, but how does this work if I have two user accounts (Development and Guest)? Are there 2 separate /home directories, or do they get shared? Is it possible to allocate more space for Development and only a tiny bit of space for Guest in GRUB2? How?!?! (2) I'm assuming that its okay that all of my development tools (Eclipse & plugins, SVN, JUnit, ant, etc.) and Java will end up getting installed in non-/home directories such as /usr and /opt, but that my Eclipse/SVN workspace will live under my /home directory on a separate partition... any problems, issues, concerns with that? (3) As far as partitioning schemes, nothing too complicated, but not plain Jane either: Boot Partition, 512 MB, in case I want to install other OSes Ubuntu & non-/home file system, 187.5 GB Swap Partition, 12 GB = RAM x 2 /home Partition, 120 GB I don't have any bulky media data (I don't have music or video libraries, this is a lean and mean dev machine) so having 320 GB is like winning the lottery and not knowing what to do with all this space. I figured I'd give a little extra space to the OS/FS partition since I'll be running JEE containers locally and doing a lot of file IO, logging and other memory-instensive operations. Any issues, problems, concerns, suggestions? (4) I was thinking about using ext4; seems to have good filestamping without any space ceiling for me to hit. Any other suggestions for a dev machine? (5) I read somewhere that you need to be careful when you install software as the root user, but I can't remember why. What general caveats do I need to be aware of when doing things (installing packages, making system configurations, etc.) as root vs "Development" user? Thanks!

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  • Exchange-Server Query

    - by Rudi Kershaw
    First, a little background. I've recently been taken on as a web and software developer for a small company, who has no other in-house IT support. They've been asking my opinion on lots of IT subjects that are quite far out of my comfort zone. I'm definitely not a network admin. Their IT consultancy contractor is pushing them to upgrade their dedicated exchange server, even though it seems like the one they currently have has a lot of life left in it and is running problem free. They say it's "coming to the natural end of it's life". They want to install a monster with a Xeon E5-2420, 32GB RAM, 2x 1TB HDDs, Windows Server 2012 and Microsoft Exchange 2010. They want to charge a small fortune for it. Basically, this system seems massively over the top seeing as it won't be doing anything else other than running as an exchange server for a company with less than 25 email accounts. My employers also have a file server system in-house that hosts three web apps, an SQL server, their local domain, print server and shared folders. That machine is using the same specs as the proposed new one, and it is barely using any of it's potential. I asked if Microsoft Exchange 2010 could be installed on their file server, but they said that MS Exchange can't run on the same system as an SQL server because for some reason they will eat up each others resources (even though the SQL server isn't touching 1% of the current system's CPU or RAM). My question is really, are they trying to rip my employers off? Could MS Exchange be installed on their other server (on a virtual instance or not), or does the old one even need replacing at all? Going with their current suggestion will cost the company in excess of £6k, and it seems entirely unnecessary. I apologies, because I know this is probably a little thin on details, but if I carry on I could end up writing a massive essay that no-one will want to read. I've been doing my research, but I'm not knowledgeable enough make any hard decisions. Let me know if you need any more details. Thank you for any help you can offer. Further Details: The new exchange would need to support Outlook Web App, 25 users, a few public mailboxes, and email exchange with Blackberries.

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  • Win2003 R2 - 1.5TB disks not identified

    - by JohnyD
    I just installed 4 1.5TB hard disks (WD) in two servers (2 in each). Upon reboot they are not showing up in the disk manager whatsoever. I'm running Windows Server 2003 EE (32bit) with 8GB ram. They both currently have mirrored 300GB sata disks. Why aren't they being recognized? Is there a disk size limit for win2k3 r2?

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  • Hardware imposed 32-bit limit

    - by knittl
    i'm thinking about converting my OS (ubuntu) to the 64 bit version to use the last bit of memory (4 gb)—ok, it's rather reinstalling … will this work as expected or are there possible limits given by the mainboard/memory controller/some other component, so i cannot fully utilize my full ram? if so, are there benefits from upgrading anyway?

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  • Why is Windows "stuck" on the Welcome screen for so long?

    - by Perdana Putra
    I use Windows 7 with a laptop specifications processor core (Core i3), 2 GB DDR3 RAM, the remaining capacity on the system partition (25 GB). I do not know why the "welcome screen" takes a long time (about 40 sec), but yesterday only took about 10 sec., I tried to defragment the disk and do a virus & spyware scan with antivirus, but still the "Welcome screen" comes along. How do I get the welcome screen to pass by faster when Windows boots up?

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  • Improve file transfer speed between Windows PCs and servers

    - by Geotarget
    I've setup a server which I've connected to multiple PCs in my workplace. Sadly, data transfer speeds are at max 3 MB/sec per connection which works out slow for file transfers, especially when transferring large files. I'm using Windows filesharing and the server is a Windows Server 2008 (2 Ghz CPU, 1 GB RAM) and the client PCs mostly running Windows 7. How can I detect bottlenecks in my network and improve file sharing speed within the network?

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  • Why is my server using so much memory?

    - by Qasim
    I haven't even set up my website on my dedicated server so I'm the only one using it at the moment. And yet this is what I see in my sys info: Full Size I just got a bunch of security softwares installed today so I'm wondering if that could be the reason. Programs like Dos deflate, CSF firewall, Mod_security, SIM, Log watch, etc. My server's details: CentOS Processor Intel Xeon CPU X3220 CPU Speed 2.39 GHz Cache Size 4.00 MB RAM 2GB DDR2

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  • how to optimize apache on web-server

    - by Prakash
    how can I optimize the server with following configuration. It takes too much time to load a page. IBM X3200 M3 Server - 1 Intel Xeon Processor with 4 GB Ram Below is my current configuration for apache: Start Servers: 5 (Default) Minimum Spare Servers: 10 Maximum Spare Servers: 20 Server Limit: 500 Max Clients: 500 Max Requests Per Child: 10000 (Default) Keep-Alive: On Keep-Alive Timeout: 5 Max Keep-Alive Requests: 100 Timeout: 200

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  • MS Publisher 2003 - hangs when saving to desktop

    - by Chris
    We have a win 7 home prem pc, amd cpu, 8G ram, plenty of free disk space. Whenever user is working in publisher 20003, and tries to save a publisher 2003 document to the desktop, the save as dialog hangs and takes 2-3 minutes to display the desktop save location. I've tested excel 2003, it has no problems immediately displaying the desktop save as location and saving the file.

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  • Fail2ban memory usage

    - by ltsstar
    Since my server is under a sustain DNS amplification attack (DDOS), I configured fail2ban and initially my outgoing traffic dropped markedly. Anyway, after a few hours (mostly +10), fail2ban uses about 75% ram and seems to be crashed in some way, because the outgoing traffic raises imediatly after. When I searched the web for the memory problem, I found some people complaining about high fail2ban memory usages as well. But the recommended solution, to insert an ulimit command into a fail2ban config file, did not change that much for me.

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  • single web app multible webservers

    - by Ramakrishna
    hi guys, Hi have a prob of load balancing we developed a web app using nearly 1500/- users parallely so the number of users increased we are unable to serve the requests that much of faster, its takes around 10 to 20 sec to load a page if page having heavy weight it takes 1min also. we need to solve this situation and we have to serve each request with in 2 to 3 sec App develped in : asp.net hosted in : IIS 7.5 Machine configuration : Windows server 2008 8GB RAM 1MBPS band width

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  • visual studio crashes

    - by amrut
    i brought compaq cq40 330tu laptop one month back its config is intel core 2 duo 2.0 GHz,2gb ddr2 ram,160 hardisk i installed microsoft visual studio a weeek back when i try to open as asp.net solution my laptops gets hanged and stops responding i am using win xp sp2 as os plz help me i am really in bad condition as i cant do my project waiting 4 ur help

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  • Virtual PC on Windows 7 doesn't have adjustment for video card size?

    - by Jian Lin
    The current VirtualBox has a place where the video card size can be set by the user. It seems that Win 7's Virtual PC doesn't have one? Will it auto adjust -- but what if the screen size is 800 x 600 and the user resize it to 1600 x 1200, then the original video size may not be enough and will that cause any issue? I do sometimes see blinking random pixel region showing on the VPC's screen... maybe it is cause by not enough video RAM size?

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  • Is it feasible to build a home Plug PC cluster?

    - by Zubair
    Is it possible to build a performant cluster for the home based on something like a plug pc: http://www.marvell.com/platforms/plug_computer/ I realise the Marvell Plug PC is not very powerful but in a couple of years I could imagine them starting to get dual cores and more RAM

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  • Not able to connect to game using "Game Ranger"

    - by Daud
    Every time the game is about to start it says that I have lost my connection to EA's servers with the following message: Make sure your network adapter and network cable is plugged in. Although my connection works perfectly but when it comes to online gaming it messes up everything. My System specifications: Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz 4096MB RAM Windows 7 Ultimate 64-bit Internet connection of 2Mbps Can you help me to sort it out?

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  • How to bring Paging File usage metric to zero?

    - by AngryHacker
    I am trying to tune a SQL Server. Per Brent Ozar's Performance Tuning Video, he says the PerfMon's Paging File:%Usage should be zero or ridiculously close to it. The average metric on my box is around 1.341% The box has 18 GB of RAM, the SQL Server is off, the Commit Charge Total is 1GB and yet the PerfMon metric is not 0. The Performance of the Task Manager states that PF Usage is 1.23GB. What should I do to better tune the box?

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  • PES 2012 results in a Nvidia error on Dell N5110 regarding System Requirements?

    - by ???? ???????
    I bought laptop Dell N5110 and installed PES 2012. Nvidia graphics card has 1GB RAM, but when I try to run game message appears that there is just 128MB graphics memory. Here is the message: Warning :Your computer does not meet the Minimum System Requirements to run this software.As a result, you may experience errors during operation.Your Video Card does not meet the required specifications.(GPU:VRAM 128MB) What could be the problem?

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  • How to get the MongoDB' current working set size

    - by Howard
    From the doc , it said "For best performance, the majority of your active set should fit in RAM." So for example, my db.stats() give me { "db" : "mydb", "collections" : 16, "objects" : 21452, "avgObjSize" : 768.0516501957859, "dataSize" : 16476244, "storageSize" : 25385984, "numExtents" : 43, "indexes" : 70, "indexSize" : 15450112, "fileSize" : 469762048, "ok" : 1 } Which value is the working set size?

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  • Current trends in Random Access Memory speed [closed]

    - by Vetal
    As I know for now because of laws of Physics there will be not any tangible improvements in CPU cycles per second for the nearest future. However because of Von Neumann bottleneck it seems to not be an issue for non-server applications. So what about RAM, is there any upcoming technologies that promise to improve memory speed or we are stack with the current situation till quantum computers will come out from labs?

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