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• Running programs in cache and registers

  - by OSX NINJA

  In my operating systems class we were shown a picture depicting a hierarchy of memory starting from most expensive and fastest at the top and least expensive and slowest at the bottom. At the very top was registers and underneath it was cache. The professor said that the best place to run programs is in cache. I was wondering why programs can't be run in registers? Also, how can a program load itself into cache? Isn't the cache something that's controlled by the CPU and works automatically without software control?

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• Tie stock quote value to cell in Excel 2011 Mac

  - by vedantchandra

  I've been working on a mock stock portfolio in Excel, and I've been looking for ways to automatically update the data, eg. stock price and P/E ratio. I have tried using a web query to MSN Money, but that just brings up the whole stock quote across multiple cells, I want data to be updated in individual cells only. The only web query solution I can think of is if someone hosted a website where each value in the stock quote was saved on a different HTML file. I could then WebQuery to that file for each cell requiring that value. However, no website offers this. So in essence, is there any tool on Excel 2011 Mac that will let me pull individual values from a stock quote and assign them to a single cell?

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• Automating and deploying new linux servers

  - by luckytaxi

  I'm in the process of developing a method to automate new virtual machines into my environment. 90% of our machines are virtual but the process is similar for both physical and vmware based images. What I do now is I use cobbler to install the base OS. The kickstart script has post hooks to modify the yum repo and installs puppet and func. Once the servers are running, I manually add them into nagios and sign the certificate via the puppetmaster. I've since migrated most of the resources to use mysql as the backend. I wanted to see what others are doing and my goal for 2011 is to have puppet inventory the hardware into mysql, and somehow i'll script a python script to have nagios grab the info and automatically add it for monitoring purposes. It's kind of tedious to have to add each new server into nagios, puppet's dashboard, munin, etc...

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• How to make PuTTY X11 forwarding work in a screen session?

  - by Alex Howell

  I'm using PuTTY with X11 forwarding enabled, using Xming as my X server on Windows 7. When I SSH to a Linux host, X11 forwarding works fine. If I start a "screen" screen manager session, it still works fine. If I disconnect from the screen session, then later resume in a different PuTTY window using "screen -rd", X11 forwarding doesn't work any more - I get an error: xterm X connection to localhost:11.0 broken (explicit kill or server shutdown). This seems to be because $DISPLAY is different in each PuTTY SSH session (localhost:11.0 in the first session, then localhost:12.0 in the next, and so on). If I manually set $DISPLAY to localhost:12.0 in the screen session, X11 forwarding works again. Is there a way to automatically set $DISPLAY in the screen session, each time it's resumed, so that it always matches the parent PuTTY session's?

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• New IE windows open in background on restricted computer

  - by Adam Towne

  We have a new computer build that is locked down via GPO. We have locked it down as tight as we can, but now new IE windows that are opened with shortcuts open behind the active window. I can post the whole list of restrictions if it is necessary, but there are a lot of restrictions. The machine has a domain account that automatically logs in, that account is the actual AD object that we have locked down. What restrictions could cause the new windows to not have focus? I apologize for a question like this, but I had 1 day to build this, and now 2 days to iron out bugs our clinical analysts find.

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• PowerDNS, updating serial

  - by Roland

  I recently wrote script that automatically enteres new Sub Domain records into the PDS mySql database. Now if I enter the entry mannually using Zone Admin my sub domain works 100%. Now if I add it using a simply SQL insert string eg "insert into records (domain_id, name,type,content,ttl,prio) values("; it does not work, I got told that I need to update the SOA serial which I do but it just does not want to take effect. I do the following date(Ymd)."01" and this does not work, any suggestions will be greatly appreciated

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• My wifi internet router connection resets when more devices connected

  - by joeeoj

  The wifi internet router is connected directly to Internet cable. The main Pc is attached to it via LAN cable, while 1 laptop and 3 mobile phones connect to it via wifi. Whenever 2 or more devices connect via wifi, the internet connection breaks after one minute and internet connection resets. I tracked this behaviour for weeks, and came to conclusion: It seems like some 'device 1' got IP then it went to suspend mode. Then 'device 2' connected to router and got the same IP. Then the 'device 1' woke up from suspend mode and tried to use his old IP. The router sees that 2 same IP addresses exists and automatically reset internet connection. Is this possible? Have I tracked the problem correctly and how to solve it? The router is set to lease 100 IP addresses to devices who try to connect. The password is strong and no hacker's device is being connected to my wifi network. Tried changing password and AP's name.

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• How to recover from a drive failure in a RAID 5 configuration?

  - by Philip Fourie

  This morning a drive failed on our database server. The drive array (3 disks) is setup in a RAID 5 configuration. While we wait for a drive replacement we are preparing for a recovery strategy. Users are continuing to work on the system, albeit very slowly (don't know why??). How does one install the new drive - will the data for this drive automatically be rebuilt from the parity or is there another process we should follow? Edit: This is a hardware RAID controller. (Thanks for the answers so far, appreciated)

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• distributed, fault-tolerant network block device

  - by gucki

  I'm looking for a distributed, fault-tolerant network storage system which exposes block devices (not filesystems) on the clients. A client's block device should write simultaneously to several storage nodes A client's block device should not fail as long as not all storage nodes backing it went down The master should automatically redistribute storages' data when a storage node fails or gets added/ removed A single master (which is for metadata only) is fine So ideally the architecture would be very similar to moosefs (http://www.moosefs.org/) but instead of exposing a real filesystem mounted using a fuse client it'd expose block devices on the clients. I know of iscsi and drbd but both don't seem to offer what I'm looking for. Or am I missing something?

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• XP Restart After Power Failure

  - by Jim

  Hello, I've almost got my power settings sorted and was hoping someone could help? If I'm running XP and the power is cut, when the power is restored my machine auto restarts (this is what I want!) However, if I shutdown my machine properly (from the start menu & without touching the PC power button!), then switch the power off at the socket, then switch the power back on, the PC does not automatically restart. It's like the bios(?) recieives a message saying "aha, genuine shutdown and not a power cut, therefore do not restart on power restore." I want my PC to restart everytime it sees power restored from the socket? Any way round this? Anyone seen this before? I've upgraded my bios. Thanks in advance, Jim

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• redmine repository management

  - by Alex

  We are trying to setup a redmine installation for our group which should work with both SVN and Git repos. Since we want to keep the repos on the server and avoid the whole privileges and hosting mess (root access, local repos, ...), we want configure redmine to manage repo creation and destruction by itself. In short, redmine should create a repository automatically for a new project and delete it if the project is deleted, with no extra setup steps from our admin. So far I found reposman for SVN and redmine_git_hosting for Git, but I am unsure if match our requirements. Are these the tools we are looking for or is there any other alternative? Thank you

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• Change Drobo directory permissions

  - by Steven Scott

  I have a Drobo unit that is connected via fire-wire to a Dell notebook. Using Ubuntu 12.04. I can not seem to change the permissions to allow all users to have read/write access to the drives. The unit is automatically mounting the volumes as my user using the system, so other applications can not access the device. I want to set up a Plex Media Server to stream music, etc... but it will not scan the drives since it can not access them. How can I change the permissions to allow everyone to read the volumes? IF I add them to the fstab as ntfs volumes, Ubuntu reports that they are not available during the boot up, likely due to the fire-wire not having found the drives yet. Any ideas or suggestions would be greatly appreciated.

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• Starting Redmine at boot using upstart on Ubuntu

  - by joekr

  So after installing redmine from the repositories on Ubuntu 12.04, i've tried to create an upstart script (see below) so it would start up at boot time. While service redmine start does start redmine, it does not start automatically when booting. Also when i run service redmine stop it does stop redmine but simply hangs until i press ctrl+c Also, after stopping starting it again does not work (Also just hangs). From all the upstart examples and tutorials i have seen this should work, so i guess i'm overlooking something. Any hints ? #Redmine description "Redmine" start on started networking stop on stopping networking stop on starting shutdown console output expect daemon exec ruby /usr/share/redmine/script/server webrick -e production -b 188.40.184.155 -p 3000 -d respawn EDIT: Fixed "typo"

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• Is there a way to batch create DNS slave zones on a new slave DNS server?

  - by Josh

  I currently have a DNS server which is serving as a master DNS server for a number of our domains. I want to set up a brand new secondary DNS server. Is there any way I can automatically have BIND on the new server act as a secondary for all the domains on the primary server? In case it matters, I have Webmin on the primary server. I believe Webmin has an option to create a zone as a secondary on another server when creating a new master zone on one server, but I don;t know of any way to batch create secondary zones for a number of existing master zones. Maybe I'm missing something. Is there a way to "batch create" DNS slave zones on a brand new slave DNS server for all the DNS zones on an existing master?

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• Thunderbird message pane

  - by MarkS

  I have just switched from Outlook to Thunderbird and one feature that I am missing is when I would click a folder it would open a message in the message pane automatically. Now it is always blank. I have it set to remember the last one opened so if I switch back and forth it is there. But if I just click a folder the first time that I invoke it -- the message pane is blank. Is there a setting somewhere that I can change. This is Thunderbird 3.0 Thanks Mark

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• ATI video cards - unable to use entire monitor (1080p)

  - by Walter White

  Hi all, I have a Dell s2409w, 24" 1080p monitor. With nVidia, I would plug-in the monitor and voila, it automatically knew it was 1080p (1920x1080). I have both a Windows laptop and Ubuntu laptop. Neither is capable of using the fullscreen even though the monitor reports the input is 1080p. I am connecting the monitors via HDMI, is there a 'special' setting I am missing to make this work? Otherwise, I like the performance of my ATI video cards, the drivers seem to be stable and reliable. Thanks, Walter

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• Adding Ubuntu installation to VIsta boot loader

  - by frapfap

  Hi, I had a Vista partition and created a partition and installed Ubuntu 9.10. During the Ubuntu installation I unchecked "Install Boot Loader" so it didn't install the GRUB bootloader. I wanted to keep Vistas boot loader so I could manage it within Vista as I know you can - Ive just forgot where in the Control Panel you do it! Anyway for some reason I incorrectly assumed that the Ubuntu entry would be added to the Vista boot loader. How do enable to choose which OS to use during booting up the computer as at the moment it just automatically loads Vista? Apologies if I'm technically incorrect - what I explained is what I thought was going on!! Thanks.

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• Network printer - Print direct or via shared printer on Server?

  - by NickC

  It has occurred to me that a workstation can connect to a printer in two ways: 1). Printing directly to the IP of the printer with the print driver installed locally. 2). Printing to a \Server\Printer1 share with the print queue residing on the server. Question is which way is preferred? I would assume that printing directly to a network printer rather than going through the server would be the most efficient from the point of view of network traffic. On the other hand I guess a server printer share would be easier to manage with the correct driver automatically being downloaded to the workstations. Also what about using GPP (Server2012) to install this printer on the workstations, does that require any specific way?

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• Use Excel Color Scale Formatting with Text

  - by stumpylog

  I use Excel sheets to track the status of tasks through a set of discrete statuses. I'd like to be able to format these automatically, with the start being red, the end being green and progressing through the combination colors in the middle. Status1 (Red) Status2 (More Red than Green) Status3 (More Green than Red) Status4 (Green) The "Color Scales" option under Conditional Formatting seems like it could be made to work, but it wants numbers. So, my question, can it be done? Using conditional formatting or other formulas to achieve the desired affect?

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• CPU I/O communication part 2

  - by b-gen-jack-o-neill

  Hi, I was suggested when I have some further questions on my older ones, to create newer Question and reffer to old one. So, this is the original question: CPU I/O communication OK, I have just 2 more questions. 1, How is MMIO set? I mean, lets say I have developed some extension card with PCI interface. How do you say to memory controller to redirect desired memory space to my card´s RAM? I mean, I think standart text-mode VGA MMIO adress is 0x8000. Is this HW set (every motherboard automatically redirects 0x8000 adress to PCI-E) or its just standart and can be changed (VGA says to motherboard: give me memory mapped IO at 0x8000) 2, Can one expansion card have more MMIO connections? I mean, lets say I have card with 10 Bytes of RAM. Can Bytes 0-4 be mapped to 0x0 and bytes 5-9 to 0x5000? Please, if you know about some good article about this, please post link. Thanks.

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• Why is autologon in Windows 7 a security risk

  - by Phenom

  If I set my Windows 7 account to automatically logon so I don't have to type a password, and I don't have to click my username on the logon screen, I heard it's a security risk. From Windows 7 Auto Login: Although I don’t personally recommend this, there are some people out there who don’t want to bother with using a password to protect their Windows user account. Of course, using a password in Windows isn’t required, only suggested. But even if you don’t fill one in, you still have to click your user icon to start the login process. An easier way - although again much less secure - is to enable auto-logins for your Windows PC. This is possible in Windows 7, as it was in prior versions, but it takes a little finagling to do so. (And for good reason, darn it.) What is risky about it besides people being able to logon locally? Does it make it easier for hackers to logon remoately?

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• can I get ConEmu to "mark to copy"?

  - by jcollum

  I installed ConEmu last week, thought I'd give it a try vs. Console2. After staring at various config options for 10 minutes I didn't see any way to get ConEmu to automatically copy text that I've selected to the clipboard. Console2 will do it. Is there a config option for this that I missed? I sure didn't see one but the configuration of ConEmu is a bit... jumbled. You'd think it would be on the Mark & Paste screen:

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• Keeping websites from knowing where I live

  - by D Connors

  This questions is related to issues and practicality, not security. I live in Brazil and, apparently, every single website I visit knows about it. Usually that's okay. But there are quite a few sites that don't make use of that information adequately. For instance: Bing keeps thinking that Brazilian pages are way more relevant to me than American ones (which they're not). google.com always redirects me to google.com.br Microsoft automatically sends me to horribly translated support pages in Portuguese (which would just be easier to read in English). These are just a few examples. Usually it's stuff I can live with (or work around), but some of them are just plain irritating. I have geolocation disabled in Firefox, so I guess they're either getting this information from my IP or from Windows itself (which I bought here). Is there a way to avoid this? Either tell them nothing or make them think I live somewhere else?

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• How do I prevent rpmbuild form injecting requirements into RPM package?

  - by Basilevs

  I'm creating an RPM package from native Python 2.5 one. Out corporate policy is to use python2.4 by default, so I'm adding a string Requires: python25 to a .spec file. When I look at created RPM file though, i see the following dependencies: rpm -qR -p ZSI-2.1_a1-py25.noarch.rpm /usr/bin/python2.5 python(abi) = 2.5 python25 rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1 Dependency added by me is present, but other dependencies are also here. I'm unable to provide python(abi) = 2.5 dependency, because of dumb python25 package generated by our IT department where provides tag is incorrect. How do I remove automatically added dependencies from generated RPM?

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• How to resolve 'Error Dependency is not satisfiable: libascound2' on ubuntu

  - by michael

  Hi, I am trying to install skype-ubuntu-intrepid_2.1.0.91-1.i386.deb on ubuntu 8.04: But in the Package installer, I get 'Error Dependency is not satisfiable: libascound2'. And I have tried. $ sudo apt-get install libasound2 [sudo] password for novarra: Reading package lists... Done Building dependency tree Reading state information... Done libasound2 is already the newest version. The following packages were automatically installed and are no longer required: linux-headers-2.6.24-24-generic libdns35 linux-headers-2.6.24-24 Use 'apt-get autoremove' to remove them. I appreciate if anyone can help me with it.

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