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• Tracking my home IP from anywhere on the internet?

  - by oKtosiTe

  I have an ISP that serves semi-permanent IPv4 addresses. They can't promise fixed IP addresses, but unexpected changes are quite rare. This begs me to ask however: what would be the easiest/most reliable way to track my home IP address so I can access my (Windows 7) home server even in the case of an address change? Please note: for reasons that I don't want to go in to, I'd like to avoid using any "dynamic DNS" type services. Instead I'd prefer some way to perhaps have the home server leave an occasional/triggered "address stamp" on a remote, off-site server (by SSH, HTTP post or similar, preferably over an encrypted connection).

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• Building a network at home, what cables to use (if any)?

  - by Faruz

  My house is currently in ruins and am building it. While doing so, I wanted to design a home network. My main objectives are surfing and HD streaming. The house is one-level, 100 sq/m (about 300 sq/ft), and one of the rooms is a safety room with Reinforced concrete walls. About a year ago, when I started planning, I thought about putting Cat 6 STP cables in the walls and create network points in the rooms. Should I use STP or FTP? I heard that STP is a problem regarding connectors and stuff. Is it really beneficial? Will it work OK if I transfer the wire together with the telephone line? Should I maybe go with WLan and count on 802.11n to enable me to stream HD across the house? is 802.11n that good?

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• Cname to multi-level heroku subdomain

  - by user123424234

  I'm trying to create a cname that points from my custom domain (s.mydomain.com) to a multilevel subdomain hosted on heroku (me.myapp.herokuapp.com). I've created the Cname s.mydomain.com with the value me.myapp.herokuapp.com. When I go to s.mydomain.com it does not route to me.myapp.herokuapp.com, instead I get: method=GET path=/ host=s.mydomain.com dyno=web.1 queue=0 wait=0ms connect=4ms service=18ms status=404 It's possible I'm not fully understanding how this Cname should be setup. My desired outcome is for s.mydomain.com to act as if it were at me.myapp.herokuapp.com.

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• Using SQL Server profiler from 2008 against R2 database

  - by Chris Lively

  On my dev machine I have the management studio tools installed from SQL Server 2008. However, one of the sql server boxes I need to profile against is running R2. Because of this, when I start the profiler and connect to that server all of the templates are gone. If I go to Edit the templates, the R2 server type isn't available as an option. Do I have to upgrade my local toolset to R2 or is there some other way around this? Note, that if I create a template and save it the next time I connect to the server that saved template isn't available.

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• Excel - working in a bank

  - by Einsteins Grandson

  I am supposed to go to an interview to a bank for just supporting managers in projects. It's a part-time job and the thing is that bank uses Excel for everything. Modifications of tables of really lot of data... What can I expect to find in the test of Excel? I have some books that are around 1000 pages thick but I don't have time and also don't feel like reading everything that's in them. These are the books that I have: http://www.amazon.com/Excel-2010-Bible-John-Walkenbach/dp/0470474874/ref=sr_1_1?ie=UTF8&qid=1347571864&sr=8-1&keywords=excel+bible http://www.amazon.com/Excel-2010-The-Missing-Manual/dp/1449382355/ref=sr_1_1?ie=UTF8&qid=1347571884&sr=8-1&keywords=Excel+2010+The+Missing+Manual http://www.amazon.com/Microsoft-Excel-2010-In-Depth/dp/0789743086/ref=sr_1_1?ie=UTF8&qid=1347571904&sr=8-1&keywords=Microsoft+Excel+2010+In+Depth So, anybody knows a good online tutorial or a book that would contain the basics and was not that much thick? ;-) Thanks so much!!!

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• DVD stops working in windows 7 64 bit

  - by Skadlig

  I have the same problem as described in this question: http://superuser.com/questions/105928/dvd-cd-rom-drives-stop-working-in-windows-7 I know I have got some games that are using starforce and/or securerom. What I don't have is the upper and lower filter in my registry tag. Oh and a reboot temporarily fixes my problem. After a random time though it goes missing again. I found a Microsoft knowledge base article regarding this but since I didn't have the filter tags they couldn't help me. Does anyone have any other tips bar removing the despicable drm:s? I would like to go on playing my games so that is not really an option for me.

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• Best idea dataserver serving small pictures 40 ko

  - by Nicolas Manzini

  I'm designing the server structure for my application in case things go well. I have one server DB connected to multiple server who process connections. All those with lots of RAM and fast processors. (still looking for a way to use the multithread because now it's dumb apache php... so loooots of ram needed). Upon an answer from those servers, the client can then connect to another server to retrieve pictures using the address he previously got from the db. Is it a good idea to have one database server with let's say nginx and ssd disk having to send all pictures to everybody? or should I have multiple server accessing to a shared ssd disk drive or multiple disk updating each other? Also should I put a lot of RAM on the database server? because probably there wont be a picture more popular than another.

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• Ubuntu doesn't start and I can't login [migrated]

  - by Meph00

  My ubuntu 13.04 doesn't boot anymore. Eternal black screen. If I press ALT+CTRL+F1 I see that it's stucked on "Checking battery state [OK]." I'd like to try to go with sudo apt-get install gdm but I can't login on terminal tty2, tty3 etc. They correctly ask for my nickname, then they make me wait a lot, ask for password and make me wait again. After a lot of time (... a lot) the best I could achieve was visualizing "Documentantion https://help.ubuntu.com". I can never reach the point where I can give commands. Plus, during the long pauses, every 2 minutes it gives a messagge like this: INFO: task XXX blocked for more than 120 seconds. Any suggestion? Sorry for my bad english and thanks everyone for the attention.

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• What are the essential considerations for setting up systems in a location with unreliable power?

  - by dunxd

  I deal with a lot of remote offices located in parts of the world where the local grid power supply is unreliable. Power can go off anytime with no warning, with outages ranging from minutes to days Power fluctuation is wild, with spikes and brown outs Currently the offices will have some or all of the following: A generator, with an inverter, or some sort of manual switch A big UPS or battery array connecting a number of devices Several smaller APC UPS with computers attached Low cost Voltage Regulators sometimes connected between mains and UPS or device. I know that each of these things needs to be appropriately rated for the equipment to which it is connected (although I am not sure how to calculate the correct rating). The offices will generally have the following equipment (in varying quantities): some sort of internet connection device (VSAT router, ADSL modem, WiMax router) Cisco ASA 5505 firewall a bunch of PCs printers one server I don't seek to replace the advice of an electrician, but in some of these locations they only answer the questions you ask them, so I need to make sure I have enough understanding of the essentials to protect equipment from damage, and possibly get through some power cuts.

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• Computer has power but won't boot

  - by John Isaacks

  When I power on my computer it will not boot. It will not even go into bios or anything. It is as if it is not powering on at all, however the decorative casing lights turn on and the PC is making noise (like from the fans). I am reluctant to think it is the power supply since some part are getting power. I do not know what it is though? For the couple days leading up to this, the computer would make a loud noise and the screen would stop displaying anything. I had to reboot to get it to work again. Now nothing happens when I boot, except the case lights come on and it sounds like some fans are coming on. Any ideas?

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• running autobench (httperf)

  - by Matthew

  So I ran apt-get install httperf on my system and I can now run httperf. But how can I run 'autobench'? I downloaded the file and unarchived it and if I go in it and run autobench it says -bash command not found I think it's a perl script but if I run perl autobench, it says: root@example:/tmp/autobench-2.1.2# perl autobench Autobench configuration file not found - installing new copy in /root/.autobench.conf cp: cannot stat `/etc/autobench.conf': No such file or directory Installation complete - please rerun autobench Even if I run it again it says the same thing.

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• Change ownership of directory and all contents to a new user from root.

  - by Andrew Fashion

  I created a website under /var/www/html/ all under root, all images, files, .htacess, directories, etc... I uploaded and configured everything as root. I want to make it it's own username/password so it's not owned by root. I currently do not have the user account made either, I want to also setup FTP for the user account. There is also about 30GB of images in the folder as well. How can I go about changing all of this? I am running CentOS 5.5 64 bit. Thank you!

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• CentOS-Like configuration of Vim on Ubuntu

  - by matejkramny

  Whenever I use a CentOS System, there's always a pleasant configuration of vim which mainly does the following: Remembering position of closed files Colour mode (!!!) Bash has colours There's lots more, just not something i can recall on the spot. Then, i go to ubuntu and its all black and white, no nice vim config etc. I have to use Ubuntu, and I hate ubuntu because of this. I know I can all configure it by myself, so my question is: How can I configure the Ubuntu system to behave (aesthetically) like CentOS? PS to future self: I will be stoned to death for asking such a question.

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• Is it possible to change the motherboard/bios vendor name? [closed]

  - by vignesh4303

  Possible Duplicate: How can I change my BIOS splashscreen? When we start the system we normally used to get the motherboard/vendor name for e.g i'm having the system with mercury motherboard whenever i restart my system the mercury logo will get displayed(you ll have respected vendors) and the regular process will go on .. my question is Is it there any possibility to change the name and logo of mercury(on my system &it differs based on your motherboard you are using ) on start up? if you are an laptop user "you can see the laptop vendor name e.g "dell" " For asus user's refer Bon Gart's comment ,I am in search of answer those whom feel frustrated about the motherboard/bios splash screen and whom feel to change it

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• How can I get GrowlTunes to Launch whenever iTunes Launches?

  - by Orion751

  I think I would be able to do this by modifying iTunes' launch services. Any idea how to go about that? Would editing its info.plist file in a manner similar to below do what I'm looking for? <keyLSOpenApplication</key <string?</string EDIT: Would http://developer.apple.com/library/mac/#documentation/Carbon/Reference/LaunchServicesReference/Reference/reference.html%23//apple_ref/c/func/LSOpenApplication provide any hints? EDIT2: Last.fm's official Mac Scrobbler (http://www.last.fm/download) is a perfect example of the functionality that I'm looking for.

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• NextPlease Firefox extension doesn't work in 3.6+. Any updates or similar extension?

  - by Tony_Henrich

  I use a Firefox extension called NextPlease which allows me to use the keyboard to go to the next or previous page on web pages which have Previous/Next paging links. Like the Google search results. I downloaded a version from http://cisengineer.com/firefox/ for my Windows XP. On a Windows 7 FF 3.6 machine, Firefox can't import the extension because it's not compatible with FF 3.6 even though it worked in FF 3.6 in Windows XP. Is there an update to this extension or is there a similar extension? I downgraded to FF 3.5.7 to have the extension working.

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• Sharing git repo without SSH

  - by user13323

  Hi. I'm trying to set-up a private git repo for code sharing, but found out that most of the implementations out there require use of SSH public keys, for example: http://www.jedi.be/blog/2009/05/06/8-ways-to-share-your-git-repository/ The only approach looking reasonable is the git-daemon, but it does not contain any authentication, and while it might be a good option for LAN, it is no go for remote working. Coming from SVN daemon, where all the access was conveniently controlled via single file, the SSH keys scheme quite a hurdle for me. Is there any way to securely share multiple Git repositories, without using SSH authentication? Thanks in advance!

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• How to elegantly selectively exclude FreeBSD network traffic from OpenVPN interface by port

  - by Polygonica

  inexperienced sysadmin here. I'm planning on running a net daemon inside a FreeBSD jail through OpenVPN, but want to be able to SSH directly into the jail and use the daemon's web interface daemon without going through the VPN. As I understand it, an OpenVPN tunnel is normally set up as a default virtual internet interface, and so incoming traffic will go out on the OpenVPN interface by default (which is problematic, as this incurs latency). I thought "well, obviously, since all of this traffic is leaving on a handful of ports, I'll just redirect those to the non-VPN gateway." I've tried to look for solutions, but almost all of them involve iptables instead of ipfw (which is default for FreeBSD) and solve slightly different problems. And alternate solutions like using multiple default routes to ensure that incoming traffic on any interface is always sent out on the same interface seem far-reaching and require deep knowledge of all tools involved. Is there an elegant way of ensuring that traffic leaving on specific ports exits on a specified non-default interface using ipfw?

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• Create a web interface that starts VM's on the server side

  - by xdragonforce

  I am creating a service called TorCompute which allows for creating virtual Tor Hidden Service servers on my infrastructure (I say infrastructure, by that I mean just the 3x 32GB RAM machines waiting to be purchased). What I would like to be able to do is for users to log on, access the web interface and spin up a VM with a variable about of RAM/Disk Space. I've written the PHP for logging in and have a nice web interface, just I need the code to actually create them! How would I go about doing this? Thanks, Stewart EDIT: I will run them with VMWare Server, with vmrun

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• Certain selected files are not deleting when I use Disk Cleanup

  - by Stephanie Malouff

  I am using Windows 7 and have been trying to retrieve disk space, but when I run Disk Cleanup the Temporary Internet files (18.1KB) and System archived Windows Error Report (267KB) will not delete. It goes through the process as if they are being deleted, but my disk space remains the same; I then go back to Disk Cleanup to see if they have been removed and they are still there. I have tried removing them individually as well, but the outcome is still the same. Can someone please tell me why this is happening and what I can do to get them to delete properly?

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• Windows 8 stuck installing update

  - by Marcom

  I just restarted my laptop to finish installing a Windows update and now it is stuck on please wait. I have tried a system restore but there is only one restore point in the list and it does not work for some reason... I also tried to do a refresh but it asks me for media. I plug in the usb I used to install windows 8 a while and go and says that the media failed to load. I'm kind of stuck on options now. I can't boot and I can't restore and it seems I cant format either! Is there anything anything else I can do to get things going?! I'm running Windows 8 on a dell xps 14 ultrabook. Win 8 is installed on an msata drive and booting using EFi.

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• Activating Windows 7 generates error code 0xc004F061

  - by Jon

  I got a new SSD and wanted to start over with Windows 7 on that disk. I did a clean install (my mistake) on the SSD and just went passed the activation part (left the key blank). Now that I have my system all setup, configured, files pulled back from backup, and ready to go, I'd like to activate Windows 7. However, I now get this error: The following failure occurred while trying to use the product key: Code: 0xC004F061 Description: The Software Licensing Service determined that this specified product key can only be used for upgrading, not for clean installations. Do I really need to wipe my system again, install Windows Vista, and then do the Windows 7 upgrade in order to use my upgrade key? Is there some kind of work around?

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• How can I mount an image from an external HDD to a partition within the host system?

  - by HardwareMuch

  I'm currently using Acronis True Image Home 2010 and I have created an image of my Windows 7 OS. I copied it to my external HDD and I repartitioned my other PC's HDD. The primary partition houses the Windows Xp system which also has Acronis installed. The new partition is logical. Whenever I try to go through the steps on "Clone Disk" the program would not let me select a destination drive if I choose the external HDD as the source. I also did not know that it you can only select disks instead of partitions as a source or destination. Any suggestions would be greatly appreciated. Thanks.

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• Is ext4 more expensive than ntfs?

  - by ???

  I have just converted an NTFS partition to ext4, however the total space seems reduced from 421G to 415G. Where did the 6G go? And, the reserved space is grown to 199M in ext4, much larger compared to 78M in NTFS, why? The partition is mainly used for movies/musics, so most files are very large (10M each). I want to use ext4 file system, is there any suggestion? mkfs.ntfs: /dev/sdb4 421G 78M 421G 1% /mnt/mmedia mkfs.ext4: /dev/sdb4 415G 199M 393G 1% /mnt/mmedia It's also weired that the remaining size of ext4 is 393G, shouldn't it be 415G or 414G? What happened to the disappeared 22G? Compared to NTFS, ext4 seems eaten 28G in total.

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• Encryption over gigabit carrier ethernet

  - by Roy

  I would like to encrypt traffic between two data centres. Communication between the sites is provided as a standard provider bridge (s-vlan/802.1ad), so that our local vlan tags (c-vlan/802.1q) are preserved on the trunk. The communication traverse several layer 2 hops in the provider network. Border switches on both sides are Catalyst 3750-X with the MACSec service module, but I assume MACSec is out of the question, as I don't see any way to ensure L2 equality between the switches over a trunk, although it may be possible over a provider bridge. MPLS (using EoMPLS) would certainly allow this option, but is not available in this case. Either way, equipment can always be replaced to accommodate technology and topology choices. How do I go about finding viable technology options that can provide layer 2 point-to-point encryption over ethernet carrier networks?

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