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• Is there a rule of thumb for RAM upgrades?

  - by Retrosaur

  I'm having a hard time figuring out whether or not a certain laptop/computer's RAM can be upgraded or not. Is there a rule of thumb that determines how much max RAM one could add to a system without looking it up via external websites? A little bit of a background information: I work in computer sales at a computer electronics store, so it is virtually impossible for me to install any sort of software that would detect computer specs, and I get a lot of customers who wonder what laptop/desktop RAM upgrades usually are. Is there a certain rule that adding more RAM entails? Does it make a difference if it's a 32-bit or 64-bit machine? OS?

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• Audio recording background noise

  - by Sergey

  For a long time time I've been trying to get rid of the background noise that appears in every audio recording I make with my computer. Tried different microphones, different sound setting, drivers. Interesting fact - the volume of this sound is equal whether I use and internal notebook microphone or an external one. I tried really good mics, so I'm sure the problem is not in it. Laptop on which this problem appears in HP Probook 4720. OS - Windows 7. P.S. Read an answer to a similar question: Annoying sound from microphone in headphone. Tried everything that was mentioned there. Only I don't have a "DC Offset Cancellation option". And when I disable "Noise Suppression" and "Acoustic Echo Cancellation", noise only becomes more noticeable. What should I do? EDIT: Example of the background noise I'm describing: http://eos-soft.com/files/noise.wma.

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• Understanding the Linux boot process, subsystem initialization, & udev rules?

  - by quack quixote

  I'm creating UDEV rules for automounting external drives on a headless server, much in the same way as Gnome-VFS does automounting during a user session. I'm concerned with the rule's behavior at boot-time. There's a good chance one of these drives will be connected during a boot, and I'd prefer any connected drives get mounted in the right place. The drives might be either USB or Firewire, and they are mounted from a shell script fired off by UDEV on detecting an "add". Here are my questions: When UDEV runs the mount for these devices at boot, will the system be ready to mount it? Or will the script get triggered too early? If it's too early, what's a good way for a script to tell that the system isn't ready yet (so sleep a while before checking again)? The UDEV rule matches ACTION=="add". Does this event even fire at system boot?

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• Looking for a reliable web provider that supports ASP.NET? Shared LAMP account a plus.

  - by Cory Charlton

  My title is probably not very clear but here's the deal. I'm a software engineer with experience in many languages but my current focus is Windows/Web applications using C# and .NET. I'm currently running a personal blog using WordPress and love it. I need to setup a website for my consulting company and, while I enjoy the canned benefits of a CMS like WordPress, would like to build a custom ASP.NET site. Either way my current LAMP host is not secure so I'm looking to switch and looking for a reliable alternative. My ultimate wish list of requirements would be a cost-effective (currently spending ~$120/yr for web+domain hosting) host that would allow me to deploy my own ASP.NET code and host a WordPress blog (IIS w/ PHP to external MySQL or separate LAMP site). Thanks in advance for your recommendations (Google is not good for this type of search :-D) Edit: I'm fine if I have to ditch WordPress. Really I'm just looking for a good ASP.NET host, the WordPress compatibility would be a plus.

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• How can I dual install Ubuntu 10.4 in a Mac Mini with 10.4.11?

  - by Marco Mariani

  I'd like to power-up my aging Mac Mini (1.5GHz Core Solo, 1GB RAM, Tiger 10.4.11) by installing a shiny Ubuntu alongside the current OS. After all, I use Ubuntu for everything save for cleaning my teeth. Since it's my first and only Mac and I have next to no experience with the OS (having used it basically as a media player) I am a little concerned about rEFIt, ELILO, Boot Camp and the fact that it's basically a 4.5 years old unsupported machine and I might get asleep reinstalling everything several times. I've used the live desktop-i386 CD and everything works. I tried with an external USB drive instead of a CD but couldn't make it boot. As for installing Ubuntu, the howtos I've found give several alternatives depending on the model, the OSX version, etc.. but they usually talk about newer machines. Which howto should I follow to repartition, and boot thereafter? Thanks

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• Backup Linux Root Partition (Fedora 12)

  - by SomeNewbie

  I setup my partition scheme to have an extra partition the size of my / partion. I have a separate home directory partition. Essentially, I will be doing things that might make my OS unstable so I'd like to backup the OS state but without bothering my home directory. Can I just backup (maybe with dd?) my root partition to another partition on the HDD? I know to restore it I would have to boot up with a livecd or something and do the reverse procedure. I want this to be as simple and require the least amount of external hardware as possible.

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• OpenDocument format plugin for Mac Office 2008?

  - by penyuan

  Is there a plugin or script that lets Microsoft Office 2008 for Mac OS X open and save files in the OpenDocument ODF (.odt, .ods, .odp, etc.) format? I am thinking something like what you can do in Office 2007. I realise I could use an external converter, such as OpenOffice.org, just wondering if there is a more direct way. If such a plugin does not exist, would it be possible to manually make such a plugin? Such as via AppleScript (or anything else)? Thank you.

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• AD LDS High availability

  - by user792974

  We are currently using CAS for multiple directory authentication. AD for internal users, AD LDS for external users. I've read that NLB is a possible solution, but wondering if this is possible with SRV records, and how about you would correctly configure that. With our AD directory, I can bind with olddomain.local, and hit any of the DCs in the domain. We don't want to hardcode servernames into CAS, so the end goal is to bind with LDSdomain.gov. nslookup -type=srv _ldap._tcp.LDSdomain.gov returns _ldap._tcp.LDSdomain.gov SRV service location: priority = 0 weight = 100 port = 1025 svr hostname = server01 _ldap._tcp.LDSdomain.gov SRV service location: priority = 0 weight = 200 port = 1025 svr hostname = server02

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• odd system name showing up in terminal

  - by sam

  Ive been working on some command line stuff with an external developer through team viewer for work, to interact with th CL i use terminal on OSX, when working with the developer i was always watching what they were doing and i also have all the bash history. Usually upon opening terminal i get something like this Last login: Tue Sep 17 21:33:02 on ttys001 You have mail. unknown-5c:00:00:00:00:00:~ sam$ (note ive replaced some characters in the last line with 00) But today when i opened up terminal and i get this Last login: Mon Oct 21 16:49:35 on ttys000 You have mail. richies-ipad:~ sam$ Note it now says richies-ipad - any idea why this is ? I dont know any one called richie let alone let them have access to my machine. Is this something to be worried about - the fact that someone has enough access to change that ? Also what does the ttys001 part on the first line mean ?

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• Computer Components

  - by Martin

  What is the role of a motherboard in terms of how components communicate with the processor (via the system busses). Therefore, for each component, which communication bus is involved and what is the route that data takes from the component to the processor, including; The bus name Whether bus is serial or parallel The name of any bridges involved Also, what is the the role of a bridge The components are: Internal components: Floppy Drive, Hard Drive, CD/DVD Drive, Memory, Processor Power supply, Graphics card & Sound card External devices: Monitor, Keyboard, Mouse (PS2 & USB), Printer, Pen Drive I have absolutely no idea of what the routes are and how motherboards communicate, could someone give me a start here? Thanks.

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• Howto configure openSuSE firewall to route local traffic to local ports

  - by Eduard Wirch

  I have openSUSE 11.3 installed. I'm using the openSUSE firewall configuration mechanism (/etc/sysconfig/SuSEfirewall2). I have a http server application running on port 8080. I want the http service to be accessible using port 80. I created a redirect rule usign: FW_REDIRECT="0/0,0/0,tcp,80,8080" This works fine for every request coming from external. But it doesn't for local requests. (example: wget http://myserver/) Is there a way how I can tell the firewall to redirect local requests addressed for 80 to port 8080? (using the SUSE firewall configuration file)

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• How to create chroot jail with ability to change some system settings

  - by Tadeck

  How to properly create chroot jail (on Ubuntu, or some some other Linux if not applicable) to make user able to edit system settings (eg. with ifconfig) and be able to communicate with external scripts? The use case would be to enable user to authenticate using SSH and then be able to perform very limited set of actions from command line. Unfortunately the tricky part is the access to system settings. I have considered multiple options and the alternative is to setup fake SSH server (eg. with Twisted), try to use restricted shell (however, I seem to need chroot still), or write a script on top of the shell (?).

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• Is there an online storage service that works with Windows 7 Backup and Restore? [closed]

  - by user57813

  I love Windows 7 Backup and Restore.. However, I kind of find it inconvenient to use external hard drive, plug it in, take it out, put it away safely etc.. Is there an online storage service to which Windows Backup can save the backup files to? Can I make Windows Backup store the backed up data to an online storage service? I do not want to manually upload the backup files. I want it to save directly to the cloud. Doesn't matter if the service costs me some $$$. I am using Windows 7 Ultimate 32-bit edition.

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• What files should be excluded from a complete Windows backup?

  - by tro

  I'm starting to use CrashPlan to backup my Win 7 PC. I've got it writing to my external HD (for quick local restores) and to CrashPlan Central (for offsite storage). I'd like to backup my entire C:\ drive (the only partition) in a way that: Preserves all of my installed software and configuration, but Avoids backing up log files and other ephemeral / temporary files that are regenerated during normal operation of the OS. Which files and/or directories should I be excluding from backups? I'd like to make this a community wiki, so that we could all contribute towards a definitive list. Here's a list of regular expressions identifying the directories and files that CrashPlan excludes on Windows by default listed at http://support.crashplan.com/doku.php/articles/admin_excludes: .*/(?:42|\d{8,})/(?:cp|~).* (?i).*/CrashPlan.*/(?:cache|log|conf|manifest|upgrade)/.* .*\.part .*/iPhoto Library/iPod Photo Cache/.* .*\.cprestoretmp.* *\.rbf :/Config\\.Msi.* .*/Google/Chrome/.*cache.* .*/Mozilla/Firefox/.*cache.* .*\$RECYCLE\.BIN/.* .*/System Volume Information/.* .*/RECYCLER/.* .*/I386.* .*/pagefile.sys .*/MSOCache.* .*UsrClass\.dat\.LOG .*UsrClass\.dat .*/Temporary Internet Files/.* (?i).*/ntuser.dat.* .*/Local Settings/Temp.* .*/AppData/Local/Temp.* .*/AppData/Temp.* .*/Windows/Temp.* (?i).*/Microsoft.*/Windows/.*\.log .*/Microsoft.*/Windows/Cookies.* .*/Microsoft.*/RecoveryStore.* (?i).:/Config\\.Msi.* (?i).*\\.rbf .*/Windows/Installer.* Other excludes: .*\.(class|obj) .*/hiberfil.sys (?i).*\.tmp (?i).*/temp/ (?i).*/tmp/ .*Thumbs\.db .*/Local Settings/History/ .*/NetHood/ .*/PrintHood/ .*/Cookies/ .*/Recent/ .*/SendTo/

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• VirtualBox serial port, limit of two?

  - by Evan Carroll

  Using VirtualBox, Is there a limit of two serial ports per VM? I'm currently engaging in a task that requires more than two, but less than or equal to four ports. I'm at a loss of what to do to get COM3 and COM4 up? How do I do it if the Virtual Box GUI doesn't currently support more than two serial host devices? Can I configure them external to the GUI? Is there a hard-cap on two devices? And, if so, for the love of god, please entertain me with the reasoning? I know Windows and Linux don't impose such a limit, it would seem awkward to impose it in virtualization layer. This is for cheap dial-in project with proprietary Windows tools. I'm using a Quatech serial multiport adapter to provide the ports to multimodems.

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• How to edit and enlarge the font in a PDF document? [closed]

  - by Gus

  Possible Duplicate: How to enlarge a PDF document on Kindle? I have a kindle 6". The problem is that I often read pdf files that are technical, therefore, it doesn't get converted very well to Kindle's native format (for example, code blocks get messed, and things like that). When I watch the pdf page, it's very small to read easily, so I have to rotate the screen to a horizontal position in order to see it better, but my page get divided. But some documents would be easy to read in vertical position if I had the chance to enlarge the font size a little bit in a external pdf editor, therefore enabling the reading in the vertical orientation. Is there a way to change the font size in a pdf file?

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• Sony Vaio dead keyboard

  - by Filip Górny

  I have strange problem with my almost new laptop. Aftear I leave it turned on for some hours and back to use it, it was printing something like ^[[2~ on the screen and I cannot stop it. After rebooting it did not show any activity. After few hours I managed to turn it on by hiting random keys at keyboard. I starts that way but I have to use external keyboard to type anything. When I randomly stroke the keys when is turned on, it sometimes print that unrecognised characters. It works the same way at linux and windows (ubuntu, windows 7). What can be the reason it started to work so strange and is there anyway to fix it without sending it to warranty and waiting few weeks? :/ I dont remember to make it wet, but they may be something like cigaretes ashes in it, I could not remember...

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• Can't run telnet in console opened by Autohotkey

  - by Steve Crane

  I have enabled the telnet client on my Windows 7 64-bit machine and if I open the start menu and launch cmd from there I can run telnet. I normally use the keyboard shortcut Win-C, implemented by this AutoHotkey snippet to open a console. #c::Run, C:\WINDOWS\system32\cmd.exe For some strange reason when I try to run telnet in a console window opened this way I get Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\Steve\Documentstelnet 'telnet' is not recognized as an internal or external command, operable program or batch file. Running path in any console, regardless of how it was opened produces the same output. Can anyone shed any light on why telnet might run in one console but not the other?

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• Connectors for Sharepoint Federated Search

  - by TobyEvans

  Hi there, we're setting up Federated Search on our intranet, and this blog: http://blogs.blackmarble.co.uk/blogs/adawson/archive/2008/08/01/sharepoint-federated-search.aspx indicates that there is an on-line gallery for searching other external sources, eg Yahoo The link for the gallery is: http://go.microsoft.com/fwlink/?LinkID=95798, which initally led to: http://www.microsoft.com/enterprisesearch/en/us/search-connectors.aspx but which now gets redirected to: http://sharepoint.microsoft.com/en-us/buy/Pages/Editions-Comparison.aspx?Capability=Search which isn't what I was looking for at all ... Does anybody know what's happened here/let us have a nice Yahoo connector? thanks Toby

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• Fax in Small Business Server 2003 fails to hang up

  - by Tim Anderson

  We have a problem with fax in SBS 2003. External modem, Courier v Everything which is a recommended model. It receives a fax OK, but then sometimes (quite often) fails to hang up. Attempts to send faxes thereafter get an engaged tone. The only fix when this happens is to reset the fax modem. Even restarting the server is not enough. We've tried with a different model modem, same problem. Any ideas? Tim

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• Proper way to re-image Windows 7?

  - by Alec

  I had a driver completely fail on me so I have to restore my computer from a system image backup. I used an installation DVD to run the Re-Image utility on there, but after 8 hours of "preparing the image" to be restored, it began restoring to my hard drive. After 12 hours there, it was 5-8% complete. I figured I must have done something wrong or it started doing something wrong. So I installed a fresh copy of Win-7 and ran the utility from there. It's going at the same snail's pace. I still think I must be doing something incorrectly - I don't see how it could possibly take so long, I could probably manually flip the on my hard drive and be done before that utility. Am I doing this correctly or is there something else I should be doing? Edit: In case my hardware is relevant: Win 7 64 bit Core i7 8 GB Ram 640GB Internal 1TB External connected via eSATA I had approximately 400GB of data on my computer before it crashed.

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• Monitoring System for the cloud?

  - by Maxim Veksler

  I need a monitoring system, much like ganglia / nagios that is build for the cloud. I need it to support : Adding / removing nodes dynamically. (Node shuts down, dose not imply node failure...) Dynamic node based categorization, meaning node can identify them self as being part of group X (ganglia gets this almost right, but lacks the dynamic part...) Does not require multicast support (generally not allowed in cloud based setups) Plugins for recent cool stuff such as Hadoop, Cassandra, Mongo would be cool. More features include: External API, web interface and co. I've looked at Ganglia, munin and they both seem be almost there (but not exactly). I would also go for reasonably priced Software as Service solution. I'm currently doing research, so Suggestions are highly appreciated. Thank you, Maxim

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• Will my Lenovo One Key Recovery work if I install Ubuntu on my Ideapad U410?

  - by dostiharise

  I own a Lenovo Ideapad U410. Being a game developer the first thing that I wanted to do is install Ubuntu. But I don't want to lose the Windows 7 that ships with the laptop. So, I wanted to know if the Lenovo One Key Recovery mechanism is capable of restoring the Windows 7, from the hidden recovery partition, after I install Ubunutu and enable Grub boot loader? Note: I am already aware that an alternative would be to create Factory Restore disks, to restore when necessary. But I cannot immediately do it unless I buy an External DVD Burner.

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• Tiny linux box with 2xGbLAN, WLAN and 10MB/s AES throughput?

  - by Nakedible

  I'd like to find a small linux box with the following specifications: Small (mini-ITX size is OK) Fanless Runs Debian At least two gigabit network interfaces WLAN that supports "host ap" with hostapd + mac80211 in AP mode Can encrypt AES at least 10 megabytes per second Total cost $300 or less Solutions from multiple parts also accepted - I can buy an external network card etc. and build the box myself if the components are available. If you don't know about the "host ap" thing, just suggest your solution, I'll find out if I can get that resolved. If I can't get all that, I can possibly skip the "runs Debian" part, and I can definitely skip the hostapd part if the box can be a wireless access point with multiple ESSIDs out of the box. Something like Asus RT-N16 is close - doesn't run Debian easily, and probably doesn't encrypt AES fast enough. Something like Zotac ZBOX HD-ID11 is also close - no idea which WLAN card it has and it lacks second gigabit interface, but otherwise nice.

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• Get source and destination of outbound traffic in pfSense

  - by maxsilver

  I'm looking at the traffic graph in pfSense (Version 1.2.2), which we're using as a router / NAT / ect on our network. Recently, I'm seeing a sudden, constant spike of 15 - 30kbps traffic outbound, that is unusual for our network (normally its below 2kbps, we're mostly all inbound traffic) Is there any way to determine what the source of this traffic is, or where it's going? (Just an internal IP address for source, and external IP address for destination would be all I need) I've already tried switching the traffic graph to 'LAN' and watching the host list on the right side, but it seems ... flakey. The numbers it shows seem to fade in and out at random, and the values never add up to anywhere near the graph values. I'm not allowed to post the image, but a photo is available at - http://imgur.com/QYjKI.png

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