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• Window 7 image in vmware will allow network connection out but not http

  - by Ormis

  I am currently trying to create a set of images to deploy on my network, but I've run in to a snag. When I create my own Windows 7 image I can successfully use NAT for connecting to the network but whenever I try to access a webpage I get nothing. To be more specific, All firewalls/iptables are disabled on my host machine, my virtual machine, and my network. I can do lookups and all addresses respond correctly (i'm even using Google's DNS). On the host OS i have full connectivity. On the virtual machine I can ping any device I want and all addresses resolve correctly. Within a browser I cannot reach any page via hostname or IP. I feel almost like port 80 is being blocked but i can't find any reason this would be the case. If anyone has had this occur before, I would love some insight to the problem. I understand this question is a bit out of the norm for stackoverflow, but I've run out of ideas. Thank you for any help you can provide.

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• On Windows XP, Start > Run "My Documents" sometimes doesn't work

  - by Clayton Hughes

  On all of my home computers, I can enter "my documents" into the Start Run prompt and the My Documents folder of the current profile will open up. What's more, I can continue typing subfolders, files, etc. and auto-complete works and it's smart and enjoyable. I can't check at the moment, but I'm almost positive entries like "My Pictures" and "My Music" also go to their correct folders. On my work computers, if I enter "my documents" into the Start Run prompt, I get the following error: "Windows cannot find 'my'. Make sure you typed the name correctly, and then try again. To search for a file, click the Start Button, and then click Search." I can sort of circumvent this by creating a shortcut in my PATH named 'my' that points to My Documents folder, but this doesn't solve the auto-complete option (and it's otherwise imperfect, of course, because "my pictures" or "my music" all direct to the same place. A google search doesn't provide much help on this, although it does identify a poster in 2007 with this same question at another board: http://www.msfn.org/board/lofiversion/index.php/t124813.html (Login required, but Google cache available here: http://preview.tinyurl.com/ygxhwwl) Is this just a limitation of the networks belonging to a domain, or is there some way I can get this functionality back? My documents folder does live in the standard place (C:\Documents and Settings{username}\My Documents), and not on a network drive or anything. It's probably worth adding that the computers are part of some freakish Novell domain thing, too. I'm not in IT here so I'm not too up on the details. Thanks for any help/suggestions!

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• .htm pages working but .aspx pages throwing errors

  - by Mike

  Our site has thousands of visitors per day but we've been receiving reports from some of our members that they are able to hit our main page, presumably because it's a .htm page, but when they click off to a .aspx page, they get an error. I've done as much research as I know how and here is what I have come up with: - We have not made any changes to IIS on our server in months. - We have a couple of customers that have been willing to work with us and provide information about their system. One customer is running Vista, the other is running XP. - We had one of the customers test both Firefox and MSIE. She gets same error in both. - One customer said, "We were able to post the profile and searched on available jobs and it worked w/ Firefox for a day, then it just quit working...we did not change any settings to Firefox after we posted the profile." - We asked the customer to clear their cache and try again. They responded with, "We just cleared the cache and got the same error; btw, I periodically clear the cache -- almost every day." Summary We have thousands of customers that hit our site with no problem. We can't reproduce these errors. These customers are getting the same error in different browsers. They are only getting the error on .aspx pages. They still get the error after clearing their cache. We would appreciate any thoughts on what other questions we could ask these customers or thoughts on how we can further troubleshoot this problem.

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• PHP & IIS 6 Encoding problem

  - by Alexander

  The server is running Windows 2003 with IIS 6.0.3790.1830 x86 (iis.dll). My database server is Microsoft SQL Server 2000. My PHP version is 5.3. The original application is hosted on appserv1 and it's database is on dbserv1. It's working fine, everything is tuned up, running great. It was needed to place the same application (different modules) on another server, for other uses, so I copied the database on dbserv2, configured appserv2 to host the application, so I achieved 2 almost identical copies. Both dbserv1 and dbserv2 use the same encoding, both appserv1 and appserv2 are on IIS6 with the same PHP configurations. I also tried my best to have the same settings in the IIS. I also made sure that I pass the encoding information both in the HTTP headers and in the meta tags with http-equiv. Both applications use utf-8. The Problem is that the copy of the application doesn't display the non-ASCII characters normally in the browser, even if the browser detects correctly the UTF-8 encoding of the page. First I thought it was a database issue, given the fact that MSSQL 2000 doesn't support UTF-8, and instead it uses UCS-2, but when I redirected the application on appserv2 to work with the database on dbserv1, it had the same encoding problems. This is why I am asking in what way I can make it work. thank you for reading.

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• Picking a linux compatible motherboard

  - by Chris

  Last time I bought a new computer (I build them myself) I got a motherboard that had really poor linux support for a long time. Specifically the audio. I had to wait months before the kernel supported the on board audio chipset. That is exactly the situation I'm trying to avoid this time around. I have some specific questions about "server motherboards" actually. I looked at a few models of server motherboards by intel, and some random models on newegg. I wasn't able to see much of a difference from regular desktop motherboard other than most had two sockets, and support for much more ram. These boards seem more popular with Linux users. Why? AMD and Intel both have server CPUs as well. Some question, what's the difference? To make this question more concrete, I was looking at this this motherboard. The main questions about it that I can't answer are: Can I get a motherboard without on board raid and audio? I wanted to get a hardware raid controller and a PCI audio card. I thought a server motherboard would be cheaper and not have these "extras", since who wants an audio card on a server? Where can I found out about Linux support for the components on this board? "Intel ICH10R", "Realtek ALC889", "Marvell 88E8056" I'm buying this computer to work as a Linux desktop for a lot of compiling, coding and audio/video work, but I don't want to rule out the possibility of installing windows and playing some games at one point. (even if the last game I got has been sitting in its box unopened for almost a year). Is it a good idea to buy a "server motherboard" and play games on it, or are desktop boards better value for this? The ultimate solution for me would be a motherboard that had GPL divers for onboard LAN, a single CPU socket, lots of PCI express and PCI. USB 3.0, and no fancy hard disk controllers since I'll be getting a separate one.

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• Win 7 (SP1) Creationg of System Image failure... seems absurd. (0x80780119)

  - by DSKauai16

  This question seems to keep coming up in Microsoft Answers. Unfortunately, it never seems to be solved... on Microsoft Answers. Hopefully someone here will have a better idea. I'm trying to create a system image. It's not working. I have just re-installed windows as of a few hours ago. I have an admittedly older Western Digital 148 GB USB portable HDD which is not just completely empty, but I even did a long format with the NTFS file system just to be sure. The reinstallation of windows and a couple of programs take up 40 GB (seen below) When I try to create a System Image onto the USB HDD, I am told that there is not enough room. Obviously, this is wrong. The screen captures show exactly the steps that are happening to lead me to 0x80780119. I haven't done anything but put on Windows 7 (32bit; SP1) and install some programs. I haven't even done anything with them. There's almost zero in the way of data, and I checked that yes, the HDD works to accept data, send data and work with data. I've used the drive successfully for a long, long time. What's going wrong?

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• Very slow write performance on Debian 6.0 (AMD64) with DMCRYPT/LVM/RAID1

  - by jdelic

  I'm seeing very strange performance characteristics on one of my servers. This server is running a simple two-disk software-RAID1 setup with LVM spanning /dev/md0. One of the logical volumes /dev/vg0/secure is encrypted using dmcrypt with LUKS and mounted with the sync and noatimes flag. Writing to that volume is incredibly slow at 1.8 MB/s and the CPU usage stays near 0%. There are 8 crpyto/1-8 processes running (it's a Intel Quadcore CPU). I hope that someone on serverfault has seen this before :-(. uname -a 2.6.32-5-xen-amd64 #1 SMP Tue Mar 8 00:01:30 UTC 2011 x86_64 GNU/Linux Interestingly, when I read from the device I get good performance numbers: reading without encryption: $ dd if=/dev/vg0/secure of=/dev/null bs=64k count=100000 100000+0 records in 100000+0 records out 6553600000 bytes (6.6 GB) copied, 68.8951 s, 95.1 MB/s reading with encryption: $ dd if=/dev/mapper/secure of=/dev/null bs=64k count=100000 100000+0 records in 100000+0 records out 6553600000 bytes (6.6 GB) copied, 69.7116 s, 94.0 MB/s However, when I try to write to the device: $ dd if=/dev/zero of=./test bs=64k 8809+0 records in 8809+0 records out 577306624 bytes (577 MB) copied, 321.861 s, 1.8 MB/s Also, when I read I see CPU usage, when I write, the CPU stays at almost 0% usage. Here is output of cryptsetup luksDump: LUKS header information for /dev/vg0/secure Version: 1 Cipher name: aes Cipher mode: cbc-essiv:sha256 Hash spec: sha1 Payload offset: 2056 MK bits: 256 MK digest: dd 62 b9 a5 bf 6c ec 23 36 22 92 4c 39 f8 d6 5d c1 3a b7 37 MK salt: cc 2e b3 d9 fb e3 86 a1 bb ab eb 9d 65 df b3 dd d9 6b f4 49 de 8f 85 7d 3b 1c 90 83 5d b2 87 e2 MK iterations: 44500 UUID: a7c9af61-d9f0-4d3f-b422-dddf16250c33 Key Slot 0: ENABLED Iterations: 178282 Salt: 60 24 cb be 5c 51 9f b4 85 64 3d f8 07 22 54 d4 1a 5f 4c bc 4b 82 76 48 d8 a2 d2 6a ee 13 d7 5d Key material offset: 8 AF stripes: 4000 Key Slot 1: DISABLED Key Slot 2: DISABLED Key Slot 3: DISABLED Key Slot 4: DISABLED Key Slot 5: DISABLED Key Slot 6: DISABLED Key Slot 7: DISABLED

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• Can't do more than one activity at a time after switching modems

  - by vallorn

  I had to replace the Motorola 2210 DSL modem that I got when I signed up for AT&T DSL Direct a few years ago. The modem kept randomly restarting and it eventually gave out on me. I am assuming overheating was the cause here because it was almost too hot to touch. In any case, I replaced it with a Netgear DM111PSP. It works fine but I can't do more than one activity at a time with it. If my wife is watching Netflix, there is a noticeable delay/latency when trying to view web sites. It's even worse if I try to play an on-line game while she's streaming; the game is basically unplayable. The odd thing is, the only other activity I can do while she's streaming is stream another Netflix show myself. There is no delay when doing that, no buffering either. I'm not a networking guy so maybe there is an explanation for it but I find that kind of odd. I've tried using QoS through my Buffalo N600 wireless router and it doesn't seem to help. With the old Motorola modem, she could be watching Netflix while I play a game and everything worked just fine. Is there anything I can check or reconfigure possibly on the modem that would account for this? Should I just ditch the Netgear and get another modem instead? I have the Netgear modem connected to the Buffalo router in a bridged mode. Its the same exact setup as I had with the Motorola and as far as I can tell, it's not the router that is the cause.

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• Why is this APC installation failing so badly?

  - by Matt

  I have multiple instances of APC running on my server with similar configurations (albeit with different cache sizes. However, one of the instances is performing extremely poorly, and I have no idea why (100% cache fragmentation, high miss rate). The runtime settings I'm using are as follows (pretty much out of the box): apc.cache_by_default 1 apc.canonicalize 1 apc.coredump_unmap 0 apc.enable_cli 0 apc.enabled 1 apc.file_md5 0 apc.file_update_protection 2 apc.filters apc.gc_ttl 3600 apc.include_once_override 0 apc.lazy_classes 0 apc.lazy_functions 0 apc.max_file_size 1M apc.mmap_file_mask apc.num_files_hint 1000 apc.preload_path apc.report_autofilter 0 apc.rfc1867 0 apc.rfc1867_freq 0 apc.rfc1867_name APC_UPLOAD_PROGRESS apc.rfc1867_prefix upload_ apc.rfc1867_ttl 3600 apc.shm_segments 1 apc.shm_size 10M apc.slam_defense 1 apc.stat 1 apc.stat_ctime 0 apc.ttl 0 apc.use_request_time 1 apc.user_entries_hint 4096 apc.user_ttl 0 apc.write_lock 1 APC is version 3.1.6, PHP is 5.3.3-1ubuntu9.5. I've tried restarting Apache multiple times, so this isn't a freak instance. The instance with problems is simply running Wordpress with a few plugins installed. All other instances (~4) on the server are running perfectly fine with almost 100% hit rates and 0% fragmentation; for example this instance is holding a website built using the Symfony framework. Any help would be much appreciated; I haven't had much experience with APC and was hoping for it to be an out-of-the-box speed boost ;).

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• Copying large files from USB devices to the internal hard drive fails on Mac OS

  - by John M. P. Knox

  I have a second-generation 13" MacBook Air running Mac OS X 10.6.6 with a 2.13 GHz processor, 4 GB of RAM, and a 256 GB SSD hard disk. I often get failures when I attempt to copy a large file or large collection of files from an external USB drive (typically a "Firewire" generation Drobo) to the internal drive. The failure behaves almost exactly as if I had pulled the USB cable from the computer in mid-transfer. I get a warning that I have removed the hard disk improperly. After this event, the drive no longer appears mounted in the finder, and I have to unplug and reinsert the USB cable to mount the drive again. I have also seen a similar problem when using Aperture 3 to import a large number of photos and videos from a USB Compact Flash card reader. The import will fail and I will have to unplug the Card Reader and import the missing items. Oddly, reversing the direction of the copy seems pretty reliable. I've never had a problem copying a large file to a USB device, meaning that I have quite a few large files which are stranded on my Drobo. Model Identifier: MacBookAir3,2 Boot ROM Version: MBA31.0061.B01 I have seen a similar issue reported on Apple's website: http://discussions.apple.com/thread.jspa?threadID=2648590&tstart=0 The only suggested resolutions there seems to be switching to another form of connectivity (e.g. firewire, which does not exist on MacBook Air), or downgrading to Mac OS 10.6.4, or reverting the USB kernel extensions to the 10.6.4 versions: http://discussions.apple.com/message.jspa?messageID=12566073#12582956 I'm not too keen on the idea of downgrading kernel extensions. Does anyone know of a hardware revision without this issue that I can trade up to? Are there any other potential solutions out there?

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• ASUS M51SE freezes for no apparent reason

  - by Piotr Justyna

  First of all, it's my first question on superuser so please excuse me if it doesn't belong here, a similar one has already been posted here or if I missed some details. My ASUS M51 freezes up. It all started a couple of months ago and I basically forgot about it since I bought a new laptop around that time. This is, however, bugging me since then and I can't explain why it's happening. Let me quickly describe what's wrong. When switched on and running (win 7) it freezes after a couple of minutes of normal usage (or even if I don't actually do anything). By 'freezes', I mean it's like a static image of my desktop was being displayed on the screen. Nothing happens, alt+ctrl+del doesn't help, I basically have to switch it off using a power button. I tried to remove the hard drive and to start the laptop without it. The same here - it freezes on the the initial black loading screen (a couple of minutes after the computer says it can't find the hdd) I tried to remove RAM - the same thing. All fans are spinning as they should. I cleaned the fans using a small paintbrush but it doesn't change anything. The laptop is generally clean and in pretty good physical shape. Well, almost, obviously :). One possible clue I can think of is that the laptop is heating excessively even when it doesn't actually do anything (hdd removed). Do you have any ideas what is the cause of this or what else can I try? Thanks, Piotr

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• Windows 8 freezes after every other reboot on Lenovo W520 after about 10 seconds

  - by John Nevermore

  I have a Lenovo W520 laptop with i7-2760QM, intel 520 SSD and Nvidia Quadro 1000m. When i boot the PC with discrete graphics SET in BIOS, the computer totally freezes and the only thing left to do is reboot. This only happens with NVidia drivers for Windows 8 x64 installed (I've tried about 4 different drivers on Nvidia's site). When i boot the PC with integrated graphics set in BIOS, there is a momentary "hickup" after about 10 seconds (instead of freezing) and then everything is working fine. When i boot the PC with discrete graphics ON and no Nvidia drivers installed, the same thing happens as described above with integrated graphics. I've tried doing 1) bcdedit /set disabledynamictick yes 2) Disabling VT-x in BIOS (Seriously would prefer not to disable it, since i use VM-s almost every day) but no dice. The only thing that worked was to enable the Hyper-v feature. I was then able to boot properly with discrete graphics and Nvidia drivers installed, but since i use VMWare for VM development this was no solution (VMWare complained about not being able to launch because of Hyper-v being installed). I followed the instructions in this tutorial, to be able to run VMWare. Then the computer just booted into a black screen past Windows logo. How to boot Windows 8 x64 without freezing with Quadro 1000M enabled, Nvidia Drivers installed and Hyper-v feature preferably disabled ?

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• iBook G4 has black screen on boot

  - by Jonathan Patt

  I have an old iBook G4 (A1054, 1.2 GHz) which has issues when it loses power or is shut off. If the battery drains—which happens quickly, as its remaining capacity is very low—it enters some sort of weird mode where it's not really awake (the screen is black, can't do anything) but it has no pulsing light indicating it's asleep either. The only way to exit this mode is to hold down the power button for ten seconds until it shuts off, and attempt rebooting it. Almost always, however, it makes the sound of the optical drive starting up, and then doesn't continue past that point. The screen doesn't come on, and things like resetting PRAM don't work. Occasionally a fan comes on loudly for a second or two. This sometimes seems to correspond with my pressing down on the rear-right casing, above the power jack. In the past, shutting it off, disconnecting it from power, removing the battery and waiting for 30 minutes would do the trick, but this time I have done that several times, letting it sit for up to several hours before retrying, to no avail. Any ideas?

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• LASER x Deskjet Printer

  - by Mike

  I am about to buy a color printer. I had a b&W laserjet printer in the past but since then I use deskjet for decades. I need a printer that can deliver high quality as these photo deskjet printers but I am tired of paying ink that costs $9,000 per gallon of ink (1 gallon = 3.785 liters = 300 cartridges = $9,000). So, I was pondering about buying a color laser, but I am not sure if these printers can deliver the same quality and worth the investment in terms of toner consumption. I remembered that my old laserjet printer was able to print 1100 pages per toner cartridge. The deskjet printers I have can print 500 pages per cartridge. Price by price, 2 deskjet cartridges have more or less the same cost as one toner cartridge and in theory prints almost the same. I am not sure if this is true for color lasers. What you guys can tell me about quality, toner cost and cost per page using laser or deskjet. Does it worths the change? Remember that a deskjet printer costs $50 and a laser printer costs $200. thanks.

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• Kernel hacking methodology - how to find out where to hack the linux kernel

  - by Flavius

  I have a throw-away cheap laptop I'd like to twiddle around, a Thinkpad SL 500. What bothers me are two leds, the one for wireless connectivity, and the one for hibernation, which don't light up at all, although they're functional, I've tried it on windows. So I would like to write a kernel driver for them, nothing big, it just looks like a good idea to play around with the kernel. My question is what methodology should I follow systematically to find out what devices are responsible for those leds (in general, not necessarily specific to my hardware), and what drivers are responsible for the other two leds that work, bluetooth and the battery indicator? And when I say methodology, I really mean the methodology, step by step, with reasons for each step, like in the answer I've gave to someone else over here: What does && mean in void *p = &&abc; I am profficient at fgrepping through big code repositories, using static code analysers & co, but I think my lack of hardware knowledge hinders me on this problem. PS: I'm using ArchLinux, so almost the latest kernel version.

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• Graphic Design in Outlook HTML Emails

  - by PhilPursglove

  At the moment we are creating artwork in Word and saving it as an HTML file. Opening up a new email, clicking insert on menuclicking ‘File’Selecting HTML file and choosing insert as text. The word document is then embedded into the email and we can create HTML links from there. The problem with this method is we are limited to what we can create visually in Word. The artwork just does not look professional enough and we find that sometimes the headers or footers do not appear or do not stay in their correct position. What I would like to do is to be able to start in Adobe InDesign (the graphics package we use). So far I have been able to create artwork in InDesign and create buttons and hyperlinks in InDesignExport it as a pdf, maintaining the hyperlinksSave as HTML documentOpen new emailInsert HTML file choosing insert as text. The problem with this method is that the images move about, the text is all different sizes, but on the plus side, the hyperlinks have been retained. So I am almost there, but not quite. Can anyone suggest what I need to do to get the design to display 'correctly' in Outlook.

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• What could cause these "failed to authenticate" logs other than failed login attempts (OSX)?

  - by Tom

  I've found this in the Console logs: 10/03/10 3:53:58 PM SecurityAgent[156] User info context values set for tom 10/03/10 3:53:58 PM authorizationhost[154] Failed to authenticate user (tDirStatus: -14090). 10/03/10 3:54:00 PM SecurityAgent[156] User info context values set for tom 10/03/10 3:54:00 PM authorizationhost[154] Failed to authenticate user (tDirStatus: -14090). 10/03/10 3:54:03 PM SecurityAgent[156] User info context values set for tom 10/03/10 3:54:03 PM authorizationhost[154] Failed to authenticate user (tDirStatus: -14090). There are about 11 of these "failed to authenticate" messages logged in quick succession. It looks to me like someone is sitting there trying to guess the password. However, when I tried to replicate this I get the same log messages except that this extra message appears after five attempts: 13/03/10 1:18:48 PM DirectoryService[11] Failed Authentication return is being delayed due to over five recent auth failures for username: tom. I don't want to accuse someone of trying to break into an account without being sure that they were actually trying to break in. My question is this: is it almost definitely someone guessing a password, or could the 11 "failed to authenticate" messages be caused by something else?

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• Setup a new domain controller over a temporary VPN, but now Windows delays startup?

  - by Kris Anderson

  I'm migrating servers from colo locations to Amazon's VPC EC2 instances. If anyone hasn't worked with Amazon VPC before, VPN is a pain in the arse! Anyways, I setup a new server that acts as the domain controller for our Amazon VPC. In order to migrate all the user accounts from our existing domain controllers I manually connected to our colo VPN using my user account on the new Amazon EC2 machine. I was able to join the domain and the new Amazon server became another domain controller on our network. So far so good. The problem I'm having is that when booting the EC2 domain controller (which is no longer connected to the VPN so it can't communicate with the existing controllers), it takes a good 6-8 minuted before I can remote into the server (instead of the 1-2 minutes it should take). Also, during this time most of the services we also run (like IIS) also give 404 errors until the 6-8 minutes have passed. It's almost like the domain controller is attempting to reach the other domain controllers first and after 6-8 minutes it falls back to the one located on the local machine? I don't think that's what's happening though, because Server 2008 R2 doesn't have primary and backup domain controllers. They're all equal as far as Windows is concerned. For my network adapter I have only one DNS listed, 127.0.0.1, so it should be looking up the local domain controller and not the other domain controllers it connected to over VPN when VPN was enabled. In the server logs I'm seeing these warnings pop up during a reboot: The winlogon notification subscriber is taking long time to handle the notification event (CreateSession). The winlogon notification subscriber took 409 second(s) to handle the notification event (CreateSession). Any ideas on what's happening here? I would try removing the existing domain controllers from the new Amazon EC2 machine, but I still need to connect over VPN a few times to migrate some data between the servers, and I don't want that change being reflected back to the other domain controllers in our colo locations.

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• Dual pane file manager for Mac OS

  - by Alex Kaushovik

  Is there a good customizable dual-pane file manager for Mac like Total Commander / Far Manager in Windows, or like Krusader / Midnight Commander in Linux? I used to work on Windows for quite a while and mostly used Far Manager and sometimes Total Commander, then I switched to Ubuntu Linux and used Krusader, now I switched to Mac OS (Snow Leopard) and I'm having a hard time trying to find a good file manager... Many of the existing applications are trying to replace the Finder with "multimedia capabilities nobody cares about in file manager - IMHO" (Path Finder, ForkLift), some of them are almost good dual-pane file managers (couldn't remember examples), but none of them worked for me mostly because of one reason: I couldn't integrate my file/folder comparison utility (Araxis Merge for Mac) with them... The way it worked for me in Windows and Linux is that I was setting the cursor on one file in the left pane, then setting the right-pane cursor on another file in right pane, then I pressed a hotkey that launched Araxis Merge with those to files/folders comparison results. It was very easy to set up in Far Manager (Windows) and Krusader (Linux, actually in Linux I used "Meld" instead of Araxis Merge...) The tool I'm looking for doesn't necessarily has to be free... Thank you!

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• High latency issue for web service call from amazon aws ec2 to local server

  - by SibzTer

  We have a legacy web application that is running in our data center on premises located in Houston. We have a developed a new .net 4 based web application in order to provide new features to customers. The new web application is hosted in amazon aws ec2 environment (N. Virginia region us-east-1b zone). In order to get seamlessly integrate with the legacy application the new web application makes web service calls to retrieve data. We are seeing an unusually high latency time in the order of 5+ seconds for these web service calls. The exact same web service call returns in less than a second on our local PCs (which makes sense given physical proximity to the actual server). The weird part is that we have developers in California who also have the same milliseconds response time. We are testing the web service response using third party tools such as SoapUI, Google Chrome extensions such as Advanced REST Client, Postman REST Client, etc. As if this wasnt weird enough, we have noticed the same low latency from certain other ec2 instances while testing which are in the same region and availability zone as well. If we experienced the high latency consistently from all the ec2 instances I could understand. But there is something else going on. Comparing the various stats and results between the low latency and high latency ec2 servers do not show any significant differences: ping (constant 40ms), tracert, winmtr, etc. We have instances that are in the VPC as well. So I tried both the public and private IP address of the web service host server and that didnt make a difference either for the above results. We need to resolve this latency issue as this is causing the resulting web pages to load very slowly (almost 15+ seconds which is simply unacceptable). The ec2 instances have Windows Server Datacenter 64 bit. Let me know if there is any other infor I can provide to help diagnose this.

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• Dual pane file manager for Mac OS

  - by Alex Kaushovik

  Is there a good customizable dual-pane file manager for Mac like Total Commander / Far Manager in Windows, or like Krusader / Midnight Commander in Linux? I used to work on Windows for quite a while and mostly used Far Manager and sometimes Total Commander, then I switched to Ubuntu Linux and used Krusader, now I switched to Mac OS (Snow Leopard) and I'm having a hard time trying to find a good file manager... Many of the existing applications are trying to replace the Finder with "multimedia capabilities nobody cares about in file manager - IMHO" (Path Finder, ForkLift), some of them are almost good dual-pane file managers (couldn't remember examples), but none of them worked for me mostly because of one reason: I couldn't integrate my file/folder comparison utility (Araxis Merge for Mac) with them... The way it worked for me in Windows and Linux is that I was setting the cursor on one file in the left pane, then setting the right-pane cursor on another file in right pane, then I pressed a hotkey that launched Araxis Merge with those to files/folders comparison results. It was very easy to set up in Far Manager (Windows) and Krusader (Linux, actually in Linux I used "Meld" instead of Araxis Merge...) The tool I'm looking for doesn't necessarily has to be free... Thank you!

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• HTML tabindex: Put some links last without complete enumeration

  - by Emanuel Berg

  I know I can use the HTML anchor attribute tabindex to set the tabindex of links, i.e., in what order they get focused when the user hits Tab (or Shift-Tab). But, I have a home page with tons of links, and to enumerate all those is a lot of work. The actual case is, I have four image links that by default gets index 1, 2, 3, and 4 (well, the behavior is equivalent, at least). But, I'd much rather have the first non-image link as number 1. Check it out here and you'll understand immediately. I tried to give the first non-image link (the link I desire to have tabindex 1) - I tried to give it tabindex 1 explicitly, hoping that it would cascade from there, but it didn't (i.e., the first image link got implicit tabindex 2). I also tried to give the image links ridiculously high tabindexes, but that didn't work: as the other links didn't have tabindexes at all, those highs were still "first". As a last resort (the solution currently employed) I gave the image links all tabindex -1. That makes for logical tabbing, but, it is suboptimal, as those image links are excluded from the tab loop - a user tabbing away will probably never realize that the images are clickable. I'd like them to be reachable with tabbing, but last, after all the ordinary links. If you wonder why I'm so determined to achieve this, it has to do with my own finger habits: I almost exclusively search for links, tab back, tab forth, etc., and very seldom using the mouse. Note: I'll accept a script to change the actual HTML for a complete enumeration, if you convince me there is no "set" way to solve this problem.

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• Can I have 2Gbit over 1Gbit Nics

  - by Daniel

  So this really baffles me. Apparently because 1Gbit can transmit data in both directions simultaneously it should be possible to get 2Gbit of data transfer on a single NIC (1Gbit flow seend and 1Gbit receive). People claim that because 1Gbit is full-duplex (almost always) it is exactly 2Gbit in total. My intuition and electrical background tells me that something is not right here 4 twisted pairs 250Mbit capacity each gives 1Gbit. Unless it is really possible to transfer data in both directions simultaneously. I did a test with iperf. Ubuntu server 12.04 <-- MacBook Pro. Both with decent CPU speed. Tested speed of connection individually and on Mac I can see 112MB/s regardless which direction data is going. On Ubuntu with vnstat and ifstat I got 970Mbit speeds. Now, launching iperf in server mode on both machines at the same time and sending data using 2 iperf clients shows that I'm for example on Ubuntu box sending at 600Mbit, and receiving 350Mbit. which adds up to pretty much 1Gbit link. So to me there is no magical 2Gbit. Can someone confirm that or tell why I'm wrong? Another thing that confuses me i the fact that e.g. 24-port switch has for example: Throughput»up»to:»50.6Mpps Switching»capacity:»68Gbps Switch»fabric»speed:»88Gbps Which would suggest thay can handle 2GBit per port.

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• Batch deletion of smaller files from group of files via unix command line

  - by artlung

  I have a large number (more than 400) of directories full of photos. What I want to do is to keep the larger sizes of these photos. Each directory has 31 to 66 files in it. Each directory has thumbnails, and larger versions, plus a file called example.jpg I dispatched the example.jpg file easily with: rm */example.jpg I initially thought that it would be easy to delete the thumbnails, but the problem is they are not consistently named. The typical pattern was photo1.jpg and photo1s.jpg. I did rm */photo*s.jpg but it ended up some of the files named photoXs.jpg were actually larger and not smaller. Argh. So what I want to do is scan each directory for filesize and delete (or move) the thumbnails. I initially thought I'd just ls -R every file and extract the size of each file and save those under a threshold. The problem? In one directory the large will be 1.1 MB and the thumb is 200k. In another the large is 200k and the small 30k. Even worse, the files really are mostly named photo1.jpg - so simply putting them all in the same folder, sorting by size, and deleting in groups would not work without renaming already, and if it's possible I'd prefer to keep them in their folders. I was almost resolved to just doing this all manually, but then thought I'd ask here. How would you do this task?

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• How do I get a Wireless N PCi card to connect to a wireless G router?

  - by Andy

  I'm having some problems setting up a new wireless PCI card on a WinXP SP3 PC. I know that the router is configured correctly. It is a Linksys WRT54GL, using 802.11b/g. Security mode is WPA2 Personal with TKIP+AES encryption. I am able to connect to this fine using my laptop (first gen MacBook with a 802.11b built in card). The new PCI card is also Linksys, but it supports 802.11n. Card seems to be installed ok (Windows sees it fine, doesn't list any errors in Device Manager), however when it scans for available wireless networks it can't find my wireless network (the router is set to broadcast the SSID). I tried to enter the network SSID manually, but that didn't seem to help. I chose WPA2-PSK for network authentication. The only options for encryption are TKIP or AES - I've tried both, neither worked. I am sure that I typed in my wireless key correctly. At this point, I don't think the problem is with encryption, but something else. It almost seems like I need to switch the wireless card into g mode, but I haven't found a way to do that (if that is even possible/necessary - I thought n was fully backwards compatible with g). Also, the PC is in the same room as the router, and my laptop, so I don't think that it is an interference issue. Any ideas what I'm doing wrong? I'm running out of things to try at this point. :(

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