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• How secure is cloud computing?

  - by Rhubarb

  By secure, I don't mean the machines itself and access to it from the network. I mean, and I suppose this could be applied to any kind of hosting service, when you put all your intellectual property onto a hosted provider, what happens to the hard disks as they cycle through them? Say I've invested million into my software, and the information and data that I have is valuable, how can I be sure it isn't read off old disks as they're recycled? Is there some kind of standard to look for that ensures a provider is going to use the strictest form of intellectual property protection? Is SAS70 applicable here?

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• Move /var directories to to /mnt on an EC2 instance

  - by Geoff Lanotte

  I am trying to work on a standard configuration for a set of EC2 instances running ubuntu 12.04. These servers are going to be primarily web servers for a Ruby on Rails application. When you configure a new large instance, you are given a primary of 8GB and then ephemeral storage of 400 GB that is mounted to /mnt. It seems logical to me to move some directories that have a potential for growth off to the /mnt directory, I was specifically thinking of /var/www and /var/log. My question is two-fold: Is this a good idea or are there pitfalls that I cannot see? If this is a good idea, how should I go about configuring this. I do have the ability to configure new instances and down our old instances. My concern is over long term, doing this in such a way that it prevents downtime. I am a developer with some experience in devops, but mounting drives is something I have not faced before, so explicit directions would be greatly appreciated.

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• Clean logging with BASH

  - by Matt Krouse

  I have a script that deletes files 7 days or older and then logs them to a folder. It logs and deletes everything correctly but when I open up the log file for viewing, its very sloppy. log=$HOME/Deleted/$(date) find $HOME/OldLogFiles/ -type f -mtime +7 -delete -print > "$log" The log file is difficult to read Example File Output: (when opened in notepad) /home/u0146121/OldLogFiles/file1.txt/home/u0146121/OldLogFiles/file2.txt/home/u0146121/OldLogFiles/file3.txt Is there anyway to log the file nicer and cleaner? Maybe with the Filename, date deleted, and how old it was? Any suggestions help!

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• Can not join comp to the domain... greyed out

  - by Logman

  I have an old WinXP Pro SP3 computer I need to join to the domain, simple right? not really. When I go to control panel - system - computer name and click on CHANGE ("rename this computer") everything is greyed out. I can not set it from workgroup to a domain. I am logged on locally as an admin. (Builtin account and one I created) I have checked local policy (gpedit.msc) on the comp, but it feels like a needle in the haystack. I could probably reload an image faster than trying to fix this...but I am curious so I post here to see if anyone knows of it/fix. I tried reseting the policy to defaults, but no luck: secedit /configure /cfg %windir%\repair\secsetup.inf /db secsetup.sdb /verbose EDIT:

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• How can I tell if my live web-server is overloaded?

  - by Nick G

  We have a live webserver which doesn't seem to be performing all that well. It's a Dell PowerEdge machine, a few years old (dual core, 4GB) which is hosting about 20 low-traffic websites. However it doesn't seem to be as fast as it used to be. How can we determine the cause of this? If it's website traffic, I would be expecting high CPU but CPU usage is quite low and hovers around the 15-30% mark except for very brief periods. I'm wondering perhaps, if rather than CPU performance being a problem, perhaps it's disk thrashing due to the constant read/writes of all the small web files and database queries. It has 4x 7200 RPM SATA drives in RAID 5. So is there a way to check that it's not disk thrashing?

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• Removing integrated video card drivers broke other hardware?

  - by jsnlxndrlv

  I just purchased and installed an XFX ATI Radeon HD 4650 video card. The installation instructions said to remove the old video card drivers before installing the new driver. I did both things, but now every time I start my computer, the Found New Hardware wizard pops up for the following three devices: PCI Device SM Bus Controller Other PCI Bridge Device Furthermore, my LAN port no longer functions. The cable's connected, and the light on the port comes on, but the computer can't find any servers when I attempt to connect with it. The modem and router are working, and obviously I'm able to use the other computer here to post this. What do I do to fix this?

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• Error Formatting Memory Card

  - by Kirby Fromm

  I just tried to look at some of my pictures on my sony cyber-shot dsc-tx5, with a Lexar platinum II 16 GB memory stick, and it is now saying I have a formatting error every time I turn the camera on. The card and Camera are both 3 months old and have worked perfectly before. I tried to check the card on my computer and it says there is an error, so the camera is working but the card is not. Does anyone know how I can fix this to get the pictures off of the card?

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• How can i use one Domain Controller to manage 3 separate small firms

  - by Plamen Jordanov

  currently we have one Domain Controller that have 15 users and cup off services(hMailServer, IIS, DNS, Active Directory). Now the owners of the firm created two new firms which computers and networks are my responsibility. Now i wonder how exactly to join users in existing domain. Did you think that is a good idea to just include all computers and user from all firms under one domain or there is another solution ? Did some of you run into this kind of situation and what did you do ? ---Edit--- Brent, Dan thank for info guys. For now i will follow Brent advice until we get the new server witch we will virtualize and the old server will be our second DC on different location. Heck we even might think some Pay-as-you-go VPS solution for DC redundancy.

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• Duplicating an instance into a new VPC from a Snapshot

  - by Remmus

  We have a group of instances in an Amazon VPC we use for our live environment. We have a big release to do and want to test that the deployment will run smoothly. I have created a second VPC, created instances of the same size on the same private ips and then removed their original volumes and attached new volumes that were created from snapshots of the live environment. Unfortunately none of the instance will allow me to connect. They start running fine, but I don't get any system logs appear and can't connect. The only thing I can think of is that the new instance was created from a new AMI as the old one is deprecated due to new security fixes. Is this a problem? If so can I fix it in any way? And if this isn't a problem, does anyone have any ideas how I can fix it?

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• Portable Display doesn't work anymore

  - by RipCord

  My USB portable monitor will not work since I installed the hard drive onto an HP laptop. I have installed all the new hardware drivers and do not have any more device issues in device manager view. My old laptop was a lenovo. The new one is an HP. The system seems to recognize devices that I connect via, usb but the portable display still does not show anything on the screen. It is probably a conflict in the registry but I'm not sure how to find it and the Power User does not have the luxury of letting me troubleshoot for hours to isolate the problem.

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• Windows 8 Google Contacts Sync doesn't sync custom fields

  - by Nishant

  I installed Windows 8 Pro a couple days ago. In the in-built "People" app, since there were options to sync contacts with several third party services like Facebook, Linkedin etc., I wanted to sync my Google contacts to the People app. The sync was successful and all my contacts migrated properly. However, the age old problem of custom fields not syncing between Google/Apple/Windows apps is still present. If a field label in my Google contacts is 'iPhone', it doesn't sync! Nor do any other custom fields except 'home' or 'work' with numbers. Is there a solution to this or any other workaround?

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• How to migrate Lotus Notes Mail in database to Exchange public folder?

  - by elsni

  I need to migrate a Lotus Notes Mail database to Exchange. In the past, Users get mails in their Notes mail accounts and sort them manually by drag and drop in a specific folder structure in a seperate Notes mail database. This should be mapped to Exchange. I considered using outlook and a sharepoint Library mapped to outlook, but Outlook does not support drag and drop from the mail account to a standard doclib and the discussion libs do not support folders. So I think it's the easiest way to use an Exchange public folder instead of a sharepoint lib, which should work as in Notes (correct me if I'm wrong). But how I do migrate the old Notes db to the public folder including all subfolders? Thank you!

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• Re-cased my computer now the power plug keeps shorting

  - by dunc

  I've just re-cased my computer. I got the new case free and thought I'd be able to swap everything over myself but apparently I've done something wrong. I'm OK with components generally but wasn't totally confident about doing this. So, my question is, when setting up a new PC or moving old components into a new case, what could I have done which causes the power cable plug to short/fuse when I plug it in?. Is this likely to be an issue with the cables from my PSU, or could it be the internal case connectors? What steps would you take to diagnose the problem? I'd rather not start again if I don't have to...! Thanks in advance,

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• My 386sx refuses to start in cold days

  - by Armadillo

  My old computer refuses to start in cold days. So, in really hot days (about 40ºC / 104ºF ) or even hotter, this PC usually starts, but in cold days, it wont. When the temperature is not in the "sweet-spot" the power light turns on for an half a second and then the computer turns off. But when it's really cold, not even the power light turns on, nor even a blink. Sometimes I use an Hair dryer, pointed directly to the PSU and that works great. 5 to 10 minutes is enough, depending on the ambient temperature. I think something is going wrong in my AT power supply. I can't replace this PSU for another because it has a non-standard size and connectors to power the motherboard. Does anybody have a clue about what it's failing in my PSU, so I can change that component (resistor, capacitor, ??, etc) and rock on with my 80386? Thanks

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• How to Redirect from One URL to Another Showing the New URL

  - by Ngu Soon Hui

  I have an old domain www.olddomain.com, and now I have shifted my content to www.newdomain.com. Both of the domains are residing in the same root folder on a sharehost. I use CPanel to manage them. Now, when the user types in www.olddomain.com, I want it to be redirected to www.newdomain.com, with the address bar showing www.olddomain.com. How to do this in cpanel? I tried to use "redirects" feature in Domains list, and although I could get the redirection, but the address bar showed www.newdomain.com, not www.olddomain.com. Any idea?

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• Reasonably Secure Alternative to Poptop PPTP Server for Ubuntu server and Windows clients?

  - by wag2639

  I have a poptp server running on a old Fedora server but I'm upgrading to an Ubuntu 10.04 server. I was wondering if there are any good, reasonable secure alternatives to poptop that in can install on our new Ubuntu server as a way to get VPN access from Windows clients (XP and 7) to get remote access into our Intranet. We only use the VPN to access files located inside the network; we do not need to use it as a proxy/gateway. I've looked into openVPN but it seemed way too complicated and I would prefer something built into Windows. A Windows 7 only solution is OK.

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• Lan DNS not working after reinstall of Ubuntu 13.10

  - by DrorCohen

  I upgrade my Ubuntu desktop to 13.10. When I say upgrade I mean installed on a new partition from scratch (old partition is available if To the problem: I'm trying to ping a host (Drobo-FS server) by it's host name. I get "Unknown Host". However pinging from another computer on the same lan - works fine (a laptop with 12.04 lts). for that matter every ping from the 13.10 to the local lan by hostname fails, ping with ip works. I don't have a local DNS server but somehow all the other computers in the network find each other by host name - only this new one fails... help appreciated...

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• Laptop Toshiba Satelite M300 screen is completely blank.

  - by Nadia

  Hi, My laptop Toshiba satelite M300 Laptop screen is completely blacked out. It powers up and appears to be running but the screen is blank. I've taken battery pack off and back on again. Before the screen was blacked out, it used to flicker a bit. Also before it blacked out i was having problems with the internet and I was on phone to Internet provider who took me through steps to take my laptop back to a future date where it was operational. It then worked properly for a few days but then switched it on and screen was blank. It's more then a year old so out of warranty. Any suggestions on whether I should pay the $300 bucks to see if they can fix it?

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• Recover data from SD card

  - by Paul Tarjan

  I have a 2GB kingston microSD card which is about 3 years old. I put it in a reader today in my Windows Vista computer, wrote a 32MB file onto it, safely removed it, and then tried to read it elsewhere. Nothing. Putting it back in vista it now says You need to format the disk in drive F: before you can use it. What should I do? I have access to many computers and OSes if your recommendations need that. I would be very sad if I lost all the contents of the card. Most of the data is backed up, but there are a few things that aren't. :( Doing a # dd if=/dev/sdg of=~/tmp/sd.bin gives me a 2 gig file, and grepping the file it seems like lots of my data is still there, how can I put it back together?

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• Can't unlock locked screen, in Ubuntu 12

  - by Camille Goudeseune

  After locking the screen (with a keystroke bound to xlock -nice 8 -mode blank), I can unlock the screen as expected, but only within a few minutes. After being locked overnight, when I hit a key (even Ctrl+Alt combos), the screen stays black with just a brief white flash across the middle of both monitors. The workaround is to ssh in from another host and restart X. Some months ago, this happened every few weeks. By now it happens almost every morning. How do I even start to diagnose this? What might I look for in log files? (The intermittency is particularly troubling.) Failing that, is there an alternative to xlock aka xlockmore? Hardware: 3-year-old HP minitower, GEForce 9800 GT, two Asus LCD monitors. Software: Ubuntu 12.04.2 LTS. Window manager awesome-wm. NVidia driver 304.88. XLock version xlockmore-5.31.

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• ATI Radeon Drivers works with which linux distribution and version? [closed]

  - by amit.codename13

  I have ATI Mobility Radeon HD 5850 graphics card. Almost every new linux distribution seems to have an issue with it, when i install the drivers. Working without utilizing the graphics card leaves me so unproductive. So i made a plan to use older versions of linux, any distribution suitable as a desktop distribution. The problems that i am facing are, 1) After installing drivers the system boots and hangs, 2) There are unusual lines over the screen 3) After upgrade system doesn't start properly(hangs the usual old way) The kind of answers i am looking for is, distribution X(the newer the version the better) doesn't have the above problem after installing drivers for ATI Mobility Radeon HD 5850 graphics card. UPDATE: The new drivers released by AMD seems to fix all the issues, although they are still beta

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• Clean out a large MediaWiki text table

  - by Bart van Heukelom

  I just discovered that an old MediaWiki of mine was infested with spam, and the database table named "text" (which contains the page content) is 3GB large. I've deleted all the spam pages manually, but: The table is still the same size. I wonder how it got to 3GB anyway. There wasn't that much spam (about a hundred medium-sized pages) How can I get rid of this mess? If you want to inspect the wiki, it's over here. The database is MySQL 5.0.75.

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• "SIOCSIFADDR: No such device" after restoring backup

  - by Paul Tomblin

  I bought some new hardware, and tried to restore my backup on it. When I boot, I don't get a network connection. If I type "ifup eth0" on the command line, I see the messages: SIOCSIFADDR: No such device eth0: No such device lspci shows an ethernet controller (Intel 82546GB). ifconfig does not show any controller except loopback. I tried installing bare Debian on the machine and the network worked then, but now I want to make it like my old machine was. Googling this problem only seems to find people having this problem in VMs. I'm not in a VM.

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• Upgrading php, mysql, and apache

  - by Kevin

  I have been looking around and have not found a good answer to my question. I currently have php 5.3.3 installed via yum on my centos 6.3 server. I need to upgrade to php 5.10 or later. It is my understanding that you need to find the correct mysql and apache packages that fit with the php install. Can someone please point me in the direction of a an update guide? Btw I am not looking for "yum update httpd php5" this gets me the old 5.3.3 version. Thanks, Kevin.

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• Copying Data from another Excel Workbook based on a matching id

  - by Kyle Begeman

  I have 2 workbooks I am working with. One workbook has an id and a category name. The other workbook shows a name and category section that has an id number (but not the actual description). Basically I want to copy the full category text to my current workbook from the old one based on the id number into a new column What kind of formula can I use to check the id number category pair and then copy it into the new workbook in a new column? Any help is great!

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