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• Why does booting from a 64 bit Win 8 USB install work on a 32 bit laptop?

  - by Arabella

  I upgraded a 64 bit Windows 7 laptop to Windows 8 through the Upgrade Assistant, creating a bootable USB without any problems. I installed it successfully. Before I purchased an upgrade for my 32 bit Windows 7 laptop, I decided to boot from the USB with the 64 bit ISO to see what happened. The Windows 8 install screen came up with all the options. Should it not have detected that the laptop is 32 bit and therefore the install should have given an error? I cancelled the install before it did anything, but now I want to know if I need to download the iso again after purchasing the upgrade on my 32 bit laptop? I've read the answers to this question, which confirms what is said in this article - a 32 or 64 bit iso will be downloaded depending on the hardware of the computer you are upgrading. If that is the case, then why did it boot into the install screen?

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• Installing Windows on multiple computers

  - by Rob

  At our work we've decided to buy SSDs to speed up our computers. We'd also like to upgrade from Windows 7 to Windows 8.1 (read clean install) I'm talking about 10 computers which going to have a fully clean installation. Is there any trick I can use to avoid installing Windows 10 times? The computers (most of them) are different in hardware, so I think duping is no good option. What can I do? I'd like to spend as less time as possible because all computers are going to need SQL Management Studio and Visual Studio 2012/2013. Thanks!

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• Tunneling over IPv4 network

  - by JoesyXHN

  Hi, Most of the articles I have read about Tunneling. It describes that the tunneling supports for communication between 2 IPv6 networks over (crossing) an Ipv4 network. For example: TUNNEL A (IPv6) ==> INTERNET NETWORK (IPv4) => TUNNEL B (IPv6) Would it be doable for: TUNNEL A (IPv4) ==> INTERNET NETWORK (IPv6) => TUNNEL B (IPv4) Please give me an answer with elaborate explanation. Thanks in advance.

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• Having problems with Grub2 booting Ubuntu from my External Hard Drive

  - by anonymous

  I installed Ubuntu on my external hard drive but it won't boot on my laptop. what do i do? i did some reading and traced the source of the problem to grub2. Apparently, grub2 doesn't use the device's UUID, and uses the linux directory instead (/dev/sdf2). This means that whenever i plug my E-HDD into a system that has a different number of drives connected to it, i won't be able to boot without editting the boot command. I don't understand it too well but that's what i got from what i read. Is there anyway to fix this?

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• Software for defining rules for folder permissions and monitoring deviations

  - by Kjensen

  Let's say a company has a large number of users, and each user has a home area. On each share used for home area folders, I would like to define some rules saying who is supposed to have which permissions on the folder. Then I would like to audit automatically, that this is actually the case and get some sort of report on deviations. So a rule for \MegaServer\Home01 could be defined something like: Domain Admins - Full Control Backup Agent - Read [Home folder owner] - Full Control I am talking about Windows platform and Windows servers, although I think it would most likely also work for *nix machines that expose Windows shares. Does software like this exist? I could roll my own basic version, but if something already exists, that is usually a better option. I am aware of tools to make displaying permissions easier (AccessEnum, DumpSec), but that is not what I am looking for.

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• SQL Server Reporting authentication not working

  - by Keith

  I'm not exactly sure what went wrong but our SQL Server Reporting Services authentication is no longer working correctly. When I try to load the site, it asks for a username and password, and mine doesn't work. I checked the service and it is using the NT AUTHORITY\NetworkService to logon. Since it is using NetworkService to logon, I read on Microsoft's site that I need to use these settings in the RSReportServer.config file: <AuthenticationTypes> <RSWindowsNegotiate /> </AuthenticationTypes> <EnableAuthPersistence>true</EnableAuthPersistence> Which is what I have set. It still asks for the password. When I set the Authentication to RSWindowsNTLM, it does login but everytime I click on a link, it asks for a password (the password doesn't seem to prevent anything from loading). Anyone know what is going on here? I'm not an expert to SQL Server so I may be missing something.

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• Options to Reformat USB Drive

  - by user8783

  I have a 64GB usb thumb drive. When I plug it into a Windows system (I have tried several machines with both Windows 7 and 8), the system attempts to read it and never completes. The drive does not show up in the device manager, nor does it appear in Computer Management - Disk Management. If I click on the "Safely Remove Hardware" icon, however, I do get an option for "Eject Mass Storage Media", although it never accomplishes anything. Also, as long as the USB drive is connected, I cannot access other USB drives or even restart my computer. It seems as though it locks up Windows Explorer. Is there any option to reformat this drive? It was a great drive up until all this craziness began and I would hate to throw it out because it was rather pricey.

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• Need hard disk recommendation for linux home server.

  - by neotracker

  Hello, I'm planing to build a little linux homeserver. It will mainly be used for storage and maybe as an media pc. I plan to build a software raid5 with 4 1.5TB or 2TB hard drives. I already decided to use the Western Digital Caviar Green 1.5 TB drive, but then I read about some problems with the WD green series about many drives failing and that they are not recommended for raid anyway. Of course, I couldn't find much facts on the issues so I thought I just ask here ;-) What hard drives would you recommended for a software raid5 setup? As I only need it for storage, the whole thing doesn't have to be too fast. So I prefer a cheap price and silence to great performance.

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• rsync server, uploaded files permissions incorrect

  - by fred basset

  I'm trying to setup an rsync server on my Ubuntu machine. Transfer from a local PC to the server via rsync does work, but the resultant uploaded files have no r,w or x bits set, e.g. ---------- 1 fredb fredb 0 Aug 30 20:50 sk_upgrade_20120830_033450.txt ---------- 1 fredb fredb 0 Aug 30 20:50 sk_user_20120827_184534.txt ---------- 1 fredb fredb 0 Aug 30 20:50 sk_user_20120830_033450.txt My rsyncd.conf file is: motd file = /etc/rsyncd.motd [workspace] path = /tmp comment = rsync server uid = nobody gid = nobody read only = false auth users = fredb secrets file = /etc/rsyncd.scrt How can I get the target files permissions correct? Also once I've solved this problem how can I transfer without a password? TY, Fred

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• Where is the list of available Windows locales?

  - by Richard Cotton

  If you open the Regional and Language Options (via Control Panel), and click on the Regional Options tab, then there is a drop down list of all the available locales. Where is this list populated from? (I want to compare the settings for each locale; I'm fine with how to do that, but I need a list of locale names to loop over.) EDIT: After browsing through my windows directory (should probably mention I'm using XP), the file C:\WINDOWS\system32\locale.nls looks like a plausible candidate, but it's a binary file. Is this what I should be looking at, and if so, how do I read it?

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• Is Zabbix the right tool for me?

  - by hortitude

  I just want to monitor a small handful of servers (less than 10). From reading various places it sounds like the top leading contenders (for open source at least) are: nagios munin zabbix From what I have read a lot of people tend to use munin and nagios together -- munin for history and graphs, and nagios for alerting. On the other hand it sounds like Zabbix is a more complete solution and easier to configure than either of the other two. So I was thinking of going that route. My thoughts right now are: What are the general disadvantages of Zabbix? Does Zabbix have a small footprint on boxes it is monitoring? Do I really need to setup an entire other server for it? I currently have a server that is under very light load -- can I dual purpose it?

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• iPhone VPN to iTunes Home Sharing

  - by Philip Crumpton

  my goal is to set up a VPN on a Windows machine that contains my iTunes library then connect to that VPN with my iPhone and be able to utilize Home Sharing remotely. I have read that this can easily be set up if the iTunes library is on a Mac (Network Beacon and YazSoft ShareTool are two products I quickly found). I can't find anyone who has had success on a Windows machine, though. In my thinking, there are two options (aside from buying a Mac): 1.) Existing utility that takes care of this for me (like the Mac-only options listed above) and is compatible with iPhone (Hamachi is NOT compatible with iPhone VPN) 2.) Manually configure a VPN to allow Bonjour multicast (can't find any information on this) FYI my router is a Linksys WRT54GL running Tomato 1.28

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• Why is "chmod -R 777 /" destructive?

  - by samwise

  This is a Canonical Question about File Permission and Why 777 is "destructive". I'm not asking how to fix this problem, as there are a ton of references of that already on Server Fault (reinstall OS). Why does it do anything destructive at all? If you've ever ran this command you pretty much immediately destroy your operating system. I'm not clear why removing restrictions has any impact on existing processes. For example, if I don't have read access to something and after a quick mistype in the terminal suddenly I now have access well... why does that cause Linux to break?

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• Justification of Amazon EC2 Performance

  - by Adroidist

  I have a .jar file that represents a server which receives over TCP an image in bytes (of size at most 500 kb) and writes it file. It then sobels this image and sends it over TCP socket to the client side. I ran it on my laptop and it was very fast. But when I put it on Amazon EC2 server m1.large instance, i found out it is very slow - around 10 times slower. It might be the inefficiency in the code algorithm but in fact my code is nothing but receive image (like any byte file) run the sobel algorithm and send. I have the following questions: 1- Is it normal performance of Amazon EC2 server- I have read the following links link1 and link2 2- Even if the code is not that efficient, the server is finally handling a very low load (just one client), does the "inefficient" code justify such performance? 3- My laptop is dual core only...Why would the amazon ec2 server have worse performance that my laptop? How is this explained? Excuse me for my ignorance.

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• Should I impersonate PHP via FastCGI?

  - by AKeller

  I am installing the latest version of PHP onto IIS 7.5 via FastCGI, and all of the instructions say that FastCGI should impersonate the calling client by setting fastcgi.impersonate = 1 If my website will have this configuration dedicated application pool application pool identity of ApplicationPoolIdentity anonymous authentication only (as IUSR) why do I want to impersonate? I come from an ASP.NET background, where the IUSR gets read-only permissions and the application pool identity gets any write permissions. Giving write access to the IUSR usually opens the door for WebDAV vulnerabilities. So I hesitate to let PHP run as the IUSR. I can't find many people asking this question (1 | 2) so I think I must be missing something. Can someone clarify this for me?

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• Auto-scaling EC2 Servers and Updating Code

  - by jstats

  We've come to the point where we need to set up autoscaling for our web server and I'm unsure how to go about the process of scaling servers and updating the the existing code without remaking a new AMI and changing the autoscale config to use it. I've read a bit about people bundling the new code and uploading it to s3 and having new servers grab the bundle on boot up but that doesn't seem all that pleasant either. Currently the web app's files live in a git repo, and when we update the code, we push it to github, ssh into the web app and run a hook to bring down the latest code. So I was thinking that another option could be to just run that hook on an hourly or daily cron task. Unfortunately that doesn't cover everything type of update (for example new blog posts' images and such which aren't included in the git repo) but it's something. Could anyone provide some advice on what a common solution is or anything as to why my proposed solution is a bad idea? Thanks all

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• Using iptables to block ALL outgoing traffic from one NIC?

  - by edanfalls

  Hi, I must pretty bad at Googling as this seems like a very basic question but I can't seem to find the answer anywhere... and man iptables is a very long read! I have two NICs - eth0 and eth1 - on a linux box and I want to block ALL outbound traffic (TCP and UDP across all ports) from one of the NICs, so that no traffic makes its way back up to the router. What is the command for this? I have only seen examples with specific ports. Thanks in advance.

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• Grandma's Computer - Can a user that belongs only to the "Users" group in Windows XP install malware, virus or IE addons?

  - by DanC

  I am trying to figure out if having a user in the "Users" group will be enough to prevent her from install unwanted software. The things that I don't want the user to be able to install are: virus malware bandoo stuff Internet Explorer Addons To put you in context, I am thinking of my grandma's computer, I want her to be able to read all her email stuff and attachments, but without the hassle of needing to reinstall the whole computer every few months. The computer will run Windows XP, with some free antivirus. It will not be part of any domain. It is just a home computer. Linux, I have tried making her use it, but she was already accustomed to Windows and was not really an option to have her re-learn where was the shutdown button. So, are these considerations enough to prevent her installing unwanted software? What other options come to you mind? Thanks

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• using gmail to send mails from your php?

  - by ajsie

  i've read some threads here in SO that someone managed to use gmail's smtp server to send out messages from php script. so if php sends a mail to [email protected] it looks like this: php tells sendmail (smtp server) to send the message sendmail sends the message to gmail's smtp server gmail's smtp server sends the message to hotmail's smtp server so now i wonder, why should one use gmail's smtp server to send a mail? isn't it better just to send the message from sendmail to hotmail's smtp server? correct me if im wrong, but isnt all that requires for a mail to be sent a communication between TWO smtp servers, the senders and the receivers (in this case, hotmail)? and another question, why can't php just send the message directly to hotmail's smtp server, why does it have to go through a local smtp server? and why do you call it a smtp server when sendmail is just acting like a client to send a message and does not receive anything? would be great if someone could shed a light on this topic!

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• Has anyone had luck getting an external hard drive working with a PCMCIA USB card?

  - by Carl

  I would like to know if anyone has had any success in getting and external 2.5" IDE hard drive in an external case (w/USB cable) working when plugged into a PCMCIA USB card. My hard drive doesn't work when plugged into my HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit). My MP3 player will work fine when plugged into it. I tried plugging in both of the USB cables that are one one end (Y cable), and it doesn't make a difference. I read the problem may be insufficient power.

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• Windows XP Blue-Screens And Reboots Instantly On Boot-Up

  - by ashes999

  My computer was running perfectly until yesterday; my internet suddenly died. Being wireless, I decided to reboot; now the computer doesn't boot. It shows the "Starting Windows" screen (safe mode loads several drivers), then it suddenly blue-screens and immediately reboots (I cannot read the blue-screen contents at all). I've tried safe-mode (with and without networking); no dice. I booted another HD with another XP install and ran scandisk on my HDs; no bad sectors, and even with auto-repair, it didn't fix the problem. Now what? What are my options to fix the broken XP install? I'm thinking: 1) Remove wireless card 2) Run XP install CD and repair installation 3) ???

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• Unidentified network: How to configure TCP/IPv4 for Win7?

  - by Zolomon

  When I try to connect to internet I keep getting the error "Unidentified network". I've tried numerous attempts at restoring access without success. IP release, flushing DNS cache, reinstalling NIC, reactivating NIC, resetting router and so on... I've read several times that it's my default gateway that's wrong. Currently I've had automatic IP/DNS configuration set without any problems, and then it stopped working for some reason. Anyone know how I specify the IP? My subnetmask is 255.255.255.0, default gateway is 192.168.0.1 but I have no idea how to determine what IP I should set. I use a D-Link DIR-655 and other computers on the network have IPs like 192.168.0.194, next is 192.168.0.197. (I'm completely lost and am trying to cool down after two weekends of debugging filled with despair.)

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• Running multipul lines through a server.

  - by Kevin Roberson

  I am looking to buy numbers in bulk on DIDx.net. After I purchase the numbers in a particular area code, I want to forward those numbers to other numbers that are outside of that area code. This way it will be seen as a local call versus long distance. I have the customers but I don't have the system I need. I have read about Asterisk, VOIP, SIP, and BYOH. But I have no clue what will be the best system for me. Does anyone have any idea what my next step should be when it comes to hardware and software? Or what type of operating system I should use? I basically want to set up a system like GoogleVoice & Phonebooth.

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• How to set up VLAN network

  - by Paddington

  I'm changing my network from having every device on flat network to using VLans. My problem is that we already have a lot of devices on this network(192.168.20.0/24). From theory, I read that each Vlan has to be a different subnet and then I need to configure virtual interfaces on my Cisco router to cater for inter vlan routing. 1) How can I segment this network with minimum down time on the devices already on the network? 2) Can I just create Vlans and leave all these Vlans in the same layer 3 network so that they can go out of the network (I am not too concerned about inter-Vlan routing) or I have to create subnets which means reconfiguring the existing devices (something I do not want).

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• Is visiting HTTPS websites on a public hotspot secure?

  - by Calmarius

  It's often said that HTTPS SSL/TLS connections are encrypted and said to be secure because the communication between the server and me is encrypted (also provides server authentication) so if someone sniffs my packets, they will need zillions of years to decrypt if using brute force in theory. Let's assume I'm on a public wifi and there is a malicious user on the same wifi who sniffs every packet. Now let's assume I'm trying to access my gmail account using this wifi. My browser does a SSL/TLS handshake with the server and gets the keys to use for encryption and decryption. If that malicious user sniffed all my incoming and outgoing packets. Can he calculate the same keys and read my encrypted traffic too or even send encrypted messages to the server in my name?

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