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• How to detect when a user copies files from a server over the network?

  - by Mr. Graves

  I have a few virtual servers + desktops that are used for shared development with remote users, including some consultants. Each user has an account with access to most aspects of the server. I don't want to prevent people from being productive, or track passwords or read emails, but I do want to know when and what files they copy from the virtual server or what they upload from the server to a remote site, and what if any applications they install. This will help make sure my IP is protected, that no one is installing tools they shouldn't, and that things are licensed appropriately. What is the simplest way to do this? In order of importance I would say detecting file transfers off the machine to be most critical. Thanks

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• Download a file via HTTP from a script in Windows

  - by Jason R. Coombs

  I want a way to download a file via HTTP given its URL (similar to how wget works). I've seen the answers to this question, but I have two changes to the requirements: I'd like it to run on Windows 7 or later (though if it works on Windows XP, that's a bonus). I need to be able to do this on a stock machine with nothing but the script, which should be text that could be easily entered on a keyboard or copy/pasted. The shorter, the better. So, essentially, I'd like a .cmd (batch) script, VBScript, or Powershell script that can accomplish the download. It could use COM or invoke IE, but it needs to run without any input, and should behave well when invoked without a display (such as through a telnet session).

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• Where should I go to learn about networking? [closed]

  - by Ollie Saunders

  I wonder if anyone could recommend resource or resources such as a good book that: explains how all the important protocols work and interact. I’m interested in those that are relevant in a typical home network and used over the Internet explains in detail how ADSL Internet connections work to the level of depth necessary so that I’m able to tweak and measure performance settings starts from the beginning but attempts to provide proper understanding rather than idiot-oriented steps to follow Basically, I’m interested in how these technologies work and tend to be implemented in hardware and software rather than “here’s what to do if…” I’m interested in Computer Networking by Andrew S. Tanenbaum and I wonder if anyone else has any experience with that title. It’s expensive but I could probably loan a copy for £3 from the library or so.

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• How can I improve performance over SMB/CIFS for an application that has poor write speeds?

  - by Jeremy

  I have a third party application that reads several large files and generates a third large file. Its performance is quite good when the generated file is stored on "local storage", i.e. either a direct attached or iSCSI-based disk. The source files that are read can be stored remotely on our NAS and accessed via SMB with little effect on performance. However, if we attempt to write the target file to any kind of SMB/CIFS share (Samba or Windows Server) the performance drops almost ten-fold. This is unacceptably slow in our case. Writing files to network shares is not otherwise slow. I can copy large files to SMB shares and get great performance - near what I would expect is possible given the disks and network in question. I have a theory that this application's problem with SMB shares has something to do with a lack of write caching over the share and perhaps lots of network roundtrips. Is this possible and is there anything that can be done about it?

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• Safe to Use an Amazon EBS Volume While Snapshot in Progress?

  - by Justin Noel

  Is it safe to use an EBS volumne while a snapshot is being created? I've currently got a 100Gb EBS volume mounted. I am in the process of snapshotting it. Goodness it's slow!! It's going to end up taking more than 45 minutes to snapshot. My question : Is the EBS volume already copied and just being saved somewhere? Or, is the snapshot actively copying from my mounted volume right now? Basically, if I start using it before the snapshot completes, am I hosed? I just can't believe it takes this long to copy. There really isn't even 100GB in use. It's more like 25Gb.

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• How can I get pidgin to replace animations/graphics with their alt text?

  - by Flimzy

  I have a few contacts who use annoying text-to-animation plugins in their clients, that do things like turn the word "hi" into an animation of Kermit the Frog waving at me, or other equally annoying non-sense. This is even more annoying when it does the conversion mid-word, like turning "This" into "T<Kermit waving>s". To get around this annoying behavior, I often find myself copying their text from pidgin, and pasting into a text editor, which always replaces the animations with their original text (presumably by way of some html ALT tag, or the moral equivalent). Obviously pidgin knows what the original text was, because it was able to provide that text to the copy buffer. So how can I get Pidgin to just show me the original text, as if there were no annoying animations in the first place?

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• import macintosh thunderbird emails to windows email

  - by Ryan

  My mac laptop died. The hard drive is good. I am able to pull what I need off my mac and copy it to windows using an open source tool (I forgot the name of it). I need my old mac emails. I was using the macintosh thunderbird for emails. How do I load those emails into thunderbird, outlook, or any other windows email tool? I did google this and there were some brief explanations, but they did not work. The vast majority of posts are about going from windows to mac.

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• Using wget to recursively download whole FTP directories

  - by user9406

  I want to copy all of the files and folders from one host to another. The files on the old host sit at /var/www/html and I only have FTP access to that server, and I can't TAR all the files. Regular connection to the old host through FTP brings me to the /home/admin folder. I tried running the following command form my new server: wget -r ftp://username:[email protected] But all I get is a made up index.html file. What the right syntax for using wget recursively over FTP?

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• Software to cache a web application for use offline

  - by littlecharva

  My boss quite regularly has to demo our web application to clients in a situation with no wifi available and sketchy 3G access, quite often the 3G lets him down. I have considered setting a copy of our server up in a virtual machine on his laptop so he could demo it offline, but I fear this will just introduce more headaches when he forgets how to boot the VM up. What I'd ideally like is an app that records you logging into a web app, saves copies of all the pages and ties the links and buttons you click up to offline copies of the pages it saves. So you could run through the demonstration you're going to give and have it cache the pages. When you then click the same buttons and links in offline mode it will present the relevant offline pages. Does such a thing exist? Can anyone recommend any alternative solutions to this problem? Thanks, Anthony

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• WMV file won't play in Windows Media Player

  - by user1053768

  I have a .wmv file I uploaded to my website. When I click the link to the video, the video plays in Windows Media Player without any problems. However, on some systems when the user clicks the link, Windows Media Player gives them the error: Window Media Player cannot play the file. The player might not support the file type or might not support the codec that was used to compress the file All I did was copy the video to the server and store the URL in a database. Why are users getting this error? How can I fix it?

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• Linux servers seeing bad download performance behind Sonicwall firewall

  - by Joshua Penix

  I'm working with a pair of co-located CentOS Linux servers sitting behind a Sonicwall PRO 2040 Enhanced firewall running in transparent bridge mode. These servers are having a strange problem downloading files more than a few megabytes in size. For example, if I try to wget or FTP a copy of the Linux kernel from kernel.org, the first ~1-2MB will download at 600+K/s, and then throughput will drop off a cliff to 1K/s. I've reviewed all the firewall configuration settings for anything suspicious, but found nothing. More interestingly, I performed the same download with a Windows server sitting behind the same firewall, and it sailed right through at 600+K/s the whole way. Has anyone seen this? Where should I start looking to troubleshoot this problem?

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• How to synchronize two folders on two remote Linux virtual machines

  - by Manoj Agarwal

  I have two virtual machines, Host OS is ESXi 3.5 and guest OS is Centos 4.6. There are two ESXi servers remotely located, each containing a Centos 4.6 virtual machine. I wish, whatever change I make in any file/folder in one virtual machine should be automatically synchronized on other remote virtual machine. The synchronization process should be automatic. It should only sync differentials, not simulate entire copy with overwrite operation. Sync should be intelligent enough to look for what has changed and what not, and should only update the changed files/folders. Further, there should be some sort of overview and selection for syncing, for example, if it shows 4 files have changed, It should be possible to sync only two files and leave other two for the time being. So, some intelligent syncing mechanism for Linux is needed.

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• How do you set up DNS in Window Server 2008 in a Hyper-V environment?

  - by Nathan DeWitt

  I have a laptop running Server 2008 and Hyper-V. I have created a virtual machine that is also running Server 2008, that I used dcpromo to create as a domain controller. I disabled IPv6 because I had no idea how to enter a default address, and I just wanted to make a standalone MOSS dev environment. I have tried every combination of creating a virtual network on the host and then connecting to that in the VM, but I can't get the VM to communicate with the host and vice versa. No pinging, no copy and paste, nothing. Thanks. To update: My VM (which is its own DC) currently does not have a static IP. When I set the IP to static, I could not find anything that would let it talk to the host machine.

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• Recovering mail from hardrive (broken os).

  - by Maciek Sawicki

  Hi, Friend of mine broke his Windows (doesn't boot). I will probably have to reinstall OS. I want to mount his hard drive in my OS to beck up some important files. He sad he uses Outlook express, but he Use Vista so I'm not sure it's Vistas Mail Client or Outlook. What files I have to copy to backup mail and adders book from Outlook, Outlook Express and Windows Mail? Is it any good program for doing it automatically (for Linux or Windows)? If there are tools or special procedures for other mail clients (for example Thunderbird) you can also name them to make this question more generic.

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• machine crash when connecting to external harddisk

  - by Gnot

  i recently had a problem with my laptop. when i booted up the machine, i would get a SMART failure error message and when i pressed F1 to continue, it would take a very long time to boot and it would come back to the same error message again. thinking that my hard disk was dying, i bought a new hard disk and installed on my laptop and so now my laptop is alright. however i need to recover data from that old hard disk, so i bought an external hard disk case and placed the old hard disk onto the case and connected to my laptop with USB. the first few times when i connected, i could see the files from the old hard disk and managed to copy some files over although it took extremely long to transfer. but now whenever i connect to the old hard disk, after a few minutes, my laptop will crash and re-boot. do you think my old hard disk is dead beyond repair? or you can offer some help here? any assistance would be appreciated!

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• Boot to VHD backup plan

  - by Josh Barker

  I have a machine that I just reinstalled Windows and all of my applications onto... what a chore that is. I want to totally and completely avoid this from now on by creating an image. My first thought was to see if it possible to copy a VHD file when you are booted into it since I am using Windows 7 Ultimate as boot-to-vhd (without a parent machine). Is this possible and if so, how could I accomplish this? Keep in mind, this is my personal machine and I'm trying to keep things inexpensive (a good script would work). Thanks, Josh

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• Software to watch movies at the same time and chat

  - by Thomaschaaf

  Hello! Sometimes I want to watch a movie with friends... them not always being near me makes it hard to do this. Usually everyone will either rent the dvd or get a copy online mostly as .avi files. Usually we all have chat windows open and when one has to pause to get a drink or because of some other reason it is VERY hard to resync. Is there software to handle this? The file could be hosted on linux machines in the cloud if that would be any help :) Greetings, Thomas

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• i[Pod|Phone|Pad|*] backups in iTunes

  - by Maroloccio

  iTunes <- iPhone. At sync time, a back-up is performed. Which data is included, which data is not? i.e. are songs (potentially redundant) backed-up so that a computer ends up having both the source file on the filesystem and the copy within the device back-up? Is anything on the iPhone filesystem not backed up? (i.e. on a Mac using Time Machine, some files are excluded from the back-up even if not all of them can be recreated upon restore - I lost my postfix config this way..)

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• mod_rewrite RewriteRule is not working

  - by buggy1985

  Hi, This is a follow-up of this question: Rewrite URL - how to get the hostname and the path? And a copy of this: mod_rewrite RewriteRule is not working I got this Rewrite Rule: RewriteEngine On RewriteRule ^(http://[-A-Za-z0-9+&@#/%=~_|!:,.;]*)/([-A-Za-z0-9+&@#/%=~_|!:,.;]*)\?([A-Za-z0-9+&@#/%=~_|!:,.;]*)$ http://http://www.xmldomain.com/bla/$2?$3&rtype=xslt&xsl=$1/$2.xsl it seems to be correct, and exactly what I need. But it doesn't work on my server. I get a 404 page not found error. mod_rewrite is enabled, as the following simple rule is working fine: RewriteEngine On RewriteRule ^page/([^/\.]+)/?$ index.php?page=$1 [L] Can you help? Thanks

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• getting a 404/403 error for payment gateway

  - by Obay Ouano

  We are setting up an online payment facility using a payment gateway. After the payment gateway finishes processing the credit card details for a payment, the user is redirected to a "403 Forbidden" page. The logs show: [MY_IP_ADDRESS_HERE] - - [SOME_DATE_HERE] "GET /POSTBACK_URL.php?txnid=1338434567&result=failure&reason=The+remote+server+returned+an+error%3a+(404)+Not+Found.&digest=7a115270c56df5945c43ad86e56b2e930a3cfd50 HTTP/1.1" 404 - "PAYMENT_GATEWAY_URL_HERE" "BROWSER_DETAILS_HERE" It means that when the PAYMENT_GATEWAY_URL attempts to open our POSTBACK_URL, it gets a 404 error, is that correct? But why does the page say "403 Forbidden"? Anyway, we tried to copy-paste that same URL into the browser window, and the page is opened successfully, with our programmed error notification message. So, why couldn't it be opened when the payment gateway tried to redirect to it, but we could? Is this some sort of permissions issue? If so, the postback URL's file permissions are already 755. What am I missing?

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• A design for watching IPTV anywhere in the house?

  - by Carlos

  I'm currently getting TV and internet via IP to my house. The service comes into an ISP-supplied Router (ST585) which is in turn connected to an IPTV box. I need to replace the router, as it's port forwarding seems to be broken, so I was thinking of getting a box with an IGMP proxy. I once mistakenly got a non-IGMP box, with the result that the internet worked, but the IPTV didn't. The trouble is, I have no idea how to set up the IPTV part of the installation. I do have a copy of the ST585 configuration, but it doesn't look anything like the Cisco stuff that I learned about at CCNA. What are the steps necessary to reproduce the IGMP setup? I was thinking of WireSharking the communications on the network, but I suppose I'd need a hub for that? As a bonus, since the packets are coming in with the TV signal, is it possible to mess with the IGMP setup so I can watch TV anywhere in the house?

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• A design for watching IPTV anywhere in the house?

  - by Carlos

  I'm currently getting TV and internet via IP to my house. The service comes into an ISP-supplied Router (ST585) which is in turn connected to an IPTV box. I need to replace the router, as it's port forwarding seems to be broken, so I was thinking of getting a box with an IGMP proxy. I once mistakenly got a non-IGMP box, with the result that the internet worked, but the IPTV didn't. The trouble is, I have no idea how to set up the IPTV part of the installation. I do have a copy of the ST585 configuration, but it doesn't look anything like the Cisco stuff that I learned about at CCNA. What are the steps necessary to reproduce the IGMP setup? I was thinking of WireSharking the communications on the network, but I suppose I'd need a hub for that? As a bonus, since the packets are coming in with the TV signal, is it possible to mess with the IGMP setup so I can watch TV anywhere in the house?

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• I need to access another user's files.

  - by CDeanMartin

  My system is an HP netbook running Ubuntu 10 netbook edition from a USB drive. I created an admin account and user account, and left in place the 'ubuntu' account. My netbook came with Windows 7 factory loaded and I did some work in Windows before setting up Linux. I copied my work into the HP Tools FAT32 partition that also came Factory Loaded, and was only 20% full. Only the 'ubuntu' account shows the HP Tools partition. So I would like to either view the partition from the 'admin' or 'user' accounts, or copy files from the partition-to a folder accessible from admin or user. I have already tried right clicking the folder, selecting share, and installing the share package, but I got a string of errors and would prefer a short term, one time solution that does not involve installing the share package. All I need is a few plain text Windows files i was working on.

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• How to determine the best byte size for the dd command

  - by James

  I know that doing a dd if=/dev/hda of=/dev/hdb does a deep hard drive copy. I've heard that people have been able to speed up the process by increasing the number of bytes that are read and written at a time (512) with the "bs" option. People have suggested that the optimal byte size is due to sector size. I personally think it would have something to do with the amount of cache that the hard drive has. My question is: What determines the ideal byte size for copying from a hard drive? and Why does that determine the ideal byte size?

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• Windows 7, Drivers, Cloning and Sysprep

  - by Frank Thornton

  I have Windows 7 working on one machine but when I move it off to the new machine it crashes. If this is a driver issue do I need to download the drivers and install them first? Or do I install Windows 7 on the new machine first then copy the drivers folder over to the other disk so it will boot up correctly? EDIT: I was trying this as well: http://www.todo-backup.com/support/tutorial/redeploy-system-to-dissimilar-hardware.htm EDIT: I tried sysprep but on bootup I see the Windows logo then the system crashes. I can stick the drive back in the old hardware and it runs fine.

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