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• IIS FTP service - download timeouts and restarts getting the data twice

  - by accel229

  We have an IIS FTP site on a Windows Server 2003 x64 machine. Application Layer Gateway service is disabled (so http://support.microsoft.com/kb/931130 does not apply). Windows Firewall service is disabled as well. Connection timeout for the FTP site (there is only one) is set to 1,200 seconds = 20 minutes. An external client can connect to the site, list directory contents and download small files. When a client attempts to download a large file (eg, if the download continues for 3 minutes, which is still under 20 minutes, but relatively long), the server sends all data, then the connection times out, the client issues REST / RETR commands attempting to restart the download since after the last byte (which I believe should succeed and receive exactly 0 bytes), and the server behaves as if the client tried to restart after byte 0, that is, it sends the entire file all over. Any ideas on how to fix this?

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• Limit number of simultaneous connections squid makes to a single server

  - by Ben Voigt

  Note: I am asking about outbound concurrent connection limits, not inbound, which is sufficiently covered on existing questions Modern browsers typically open a large number of simultaneous connections, to take advantage of the fact that TCP fairly shares bandwidth between connections. Of course, this doesn't result in fair sharing between users, so some servers have started penalizing hosts which open too many connections. This limit can be configured client-side (e.g. IE MaxConnectionsPerServer, Firefox network.http.max-connections-per-server), but the method differs for each browser and version, and many users aren't competent to adjust it themselves. So we turn to a squid transparent HTTP proxy for central management of HTTP download. How can the number of simultaneous connections from squid to a remote webserver be limited, so the webserver doesn't perceive it as abuse of concurrent connections? Ideally the limit would be per source address. Squid should accept virtually unlimited concurrent requests from the client browser, and issue them sequentially to the remote server, only N at a time, delaying (but not dropping) the others.

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• SFTP through proxy

  - by aerodynamic_props

  I have a large amount of data on scratch space at computer b that I want to get. In my network I cannot directly connect to computer b (ssh exits with "No route to host"); I must first connect to computer a, and then connect to computer b. I cannot move the data from the scratch space on computer b to computer a because of a disk quota that is imposed on me at computer a. How can I move the data from computer b to my computer in this situation?

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• Access to self created torrent on public tracker

  - by Nick

  Not sure if this is the right site to ask this, but here it goes: Let's say I'd like to share a couple of private files with a few friends. The size of these are quite large, so I've figured the best route to distribute these is via torrent. So, on my home PC I create a torrent and start seeding and announce to a public tracker like openbittorrent and publicbt. Now, both of those are public trackers, but they don't seem to have anyway of searching through what is actually being tracked. If I'm only passing around the torrent file to a few friends, whats the chances that someone else will 'randomly' come across the torrent via the public tracker and start leeching?

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• Filtering serial port io

  - by mr odus

  I am currently working on a project where I communicate with hardware via a com port on its respective pc(win xp or 7) It is a fairly large project and sifting through the log file can be a bit of pain. This is my current setup. I use putty to do the actual serial communication, and write it to a log file. Then using MinGW Msys I filter it using tail -f "puttyLog" | grep -i "search term" Is there a better way to do this? I mean specifically filtering the input in realtime. Not that mine is terrible, but it still involves having to read from a log and sometimes there have been hangups where it will be delayed for a minute or 2. I have used software in the past with a main io window and then internal filter panels, but can no longer remember or find it.

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• How to debug high memory usage by registry?

  - by bkr

  I have a windows 2008 r2 server running ADFS2 and some web apps that is having issues with low memory. Digging around I found that the 5.5 GB were being used under Kernel Memory (paged). Further digging with Poolmon, I discovered that the majority of that (5GB+) was being used by CM - configuration manager. Also known as the registry. I'm really now sure how to tell why the registry is using so much memory however, or how to release it? Looking at the physical registry files they don't appear that large. EDIT #1 Using the powershell script @ http://jdhitsolutions.com/blog/2011/05/get-registry-size-and-age/ confirms what I saw looking at the physical registry files, that they're relatively small Computername : (removed) Status : OK CurrentSize : 67 MaximumSize : 2048 FreeSize : 1981 PercentFree : 96.728515625 Created : 4/1/2011 11:38:02 AM Age : 454.23:41:28.2540682

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• What is a good router linux distro and WHY?

  - by madmaze

  I have a rather large home network with many clients. Ive decided I want to build a Linux based router, I have an 1.6Ghz dual-core(atom) system kicking around which will be re-purposed. So ive looked at a bunch of specific router distros but cant decide. I have also looked into taking a Ubuntu server or FreeBSD install and adding needed packages. So question is, what is the best router-Linux or base Linux distro and why? resources appreciated.

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• make "sort by" permanent for specific folder

  - by Black Cobra

  I have a folder where I store all my web icons in .png and .ico format. I set view to large icons and sort by to date modified -> descending. When I save new icons in this folder from web, I drag and drop them from browser (chrome) to the folder. The problem is after that the icons in the folder are not sorted by date modified descending any more... So how can I set any file or program or something that will set the sort by to date modified -> descending for that folder only each time I will access (open) the folder? I am using window 7 x64.

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• Quickbooks and Cisco ASA 5505

  - by user41516

  I have a Cisco ASA 5505, and everything has seemed to function fine, however I have had problems with Quickbooks 2008 running super slow over the network (Samba) and narrowed it down to the Cisco box. Other Samba transfers seem to be pretty fast, and the Quickbooks file is not very large at all (<25 MB), and other Samba transfers seem to be fine. However, I'm not sure if Quickbooks uses another protocol or if there are other ports that need to be opened. Can anybody give me any clues on how to resolve or troubleshoot the problem or have any prior experience with running Quickbooks over a network?

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• Mirror DFS configuration data between 2 servers/ sites

  - by Retro69

  I have 1 Windows 2008 R2 server in Site A running Domain Integrated DFS in 2008 mode with a Single Namespace with a large number of DFS Targets all configured to point to a share on our NetApp SAN. Step 1. I want to initially copy this configuration data across to a 2012 server in Site A preserving all the configuration data. Step 2. I need to mirror this configuration to a 2nd server in Site B so we dont have a single point of failure for the DFS namespace. For Example. A user in Site B would "connect" to the DFS server in Site B, but if that site was down, it would attempt to connect to the Server in site A and vice versa. Note im not interesting in replicating actual Data here, just the configuration. Our NetApp SANS have mirroring which take care of that. Is this possible? Many thanks.

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• Social Media Aggregator, Global Update via Powershell

  - by deanjmiller

  Does anyone know of a way to interface with a Social Media Aggregator using Powershell. For Instance, I would like to update my global status on digsby using Powershell. Digsby would then fan the message out to Facebook, Myspace, Twitter, Etc.. I am open to using any Social Media Aggregator that can do this.. Digsby, Seesmic, Ping.fm TweetDeek, etc.. If any of these programs have a com interface or something like it I'm sure who ever implements this first will have a large gain in users.

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• Virtual Server 2005 R2 kungfu

  - by AngryHacker

  Does Virtual Server 2005 R2 have a command line interface, that's versatile enough? Here is a situation. I run a Win2k VM on an old memory constrained machine. I allocate it 378MB of RAM and the VM runs just fine. Once a month, inside the VM, I backup the (a very large) database, compress it using 7Zip and ftp it to the backup site (all in a script). Unfortunately the compression part takes a massive amount of RAM (far exceeding the 378MB), it goes for the paging file and brings absolutely everything to a crawl and literally takes 2-3 days, if left unattended. So to fix this, I have to shutdown the VM, give it temporarily 768MB of RAM and then the whole thing finishes in 20 minutes. So, is there a way do the following automatically from the host machine in a script? Shutdown the guest OS (I think, I got this part) Change the RAM allocation from 378 to 768 Start the guest OS again then, 1 hour later, do everything in reverse.

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• Distribute Windows (XP or 7) as virtual appliance

  - by User32

  I'm looking at ways that may be possible to distribute a Microsoft Windows (e.g. 7) virtual appliance (such as VMWare image) pre-configured and installed with a large application of mine. Is this possible? If not, is it perhaps best to ask clients to perform a virtual appliance installation on their site and then install my application via a script of some sort? For these kinds of scenarios I see that open source OSes are heavily used, but in my case I cannot use Linux or any other open source OS due to some requirements.

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• Minimum size of a boot partition on debian

  - by zebonaut

  I'm setting up an old box with Debian. First etch (4.0), because this is the last version that still had boot floppies, then the box is to be upgraded to lenny (5.0) and squeeze (6.0). Therefore, I will end up having a a couple of different kernel versions in the boot partition. If I don't want to be wasteful and if I end up needing a separate boot partition, how large should it be? I've used 10 MB long ago, but that was woody, and only one kernel in the boot partition, and this seems to be too small for what I want to do now.

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• NFS Issues in Gnome

  - by Alex

  I mount NFSv4 export via /etc/fstab and mount and use the shared folder in nautilus. There are two issues: When I copy a large file (around 4 GB) to the NFS server, the progress bar rapidly goes to 2 GB and then basically stops moving. But the copy s still in progress - it is just not displayed well When I disconnect from the network without unmounting the nfs share, nautilus freezes. How can I work around that? /etc/export on the server /export/share 192.168.0.0/24(rw,sync,insecure,no_subtree_check,anonuid=1000,anongid=1000) /etc/fstab on the client: server:/share /mnt nfs4 soft,tcp

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• The Coolest Server Names

  - by deadprogrammer

  These days server naming is a bit of a lost art. Most large organizations don't allow for fanciful names and name their servers with jumbles of digits and letters. In the olden days just about every system administrator came up with a unique naming scheme, well, sometimes unique - many just settled for Star Trek characters. To this day my favorite server name is Qantas - a Unix server that Joel Spolsky has or used to have. Why Qantas? You'd have to ask Rainman. So my question is this - what is the coolest server name or naming convention that you encountered? Let the geekfest begin. This question is marked "community wiki", so I am not getting any "rep" from it.

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• Linux: Alternative to rsync? (ie, scp with resume)

  - by Joernsn

  I've been using rsync to automatically send files from one box to another, which is great compared to scp, since it supports resuming. However, when resuming a very large file (10gb) rsync has to read both files and compare them, which is very slow. I don't need fancy error handling, just "scp with resume", so here's my question: Is there an alternative to rsync/scp, that supports resuming without having to read both source and destination files? I've read the manuals without finding anything I can use, please let me know if I've missed something. This is the rsync line I've been using: rsync -av --partial --progress --inplace SRC DST

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• Big noise from Power Supply Unity Fa? Should I replace it immediately?

  - by EApubs

  Recently, I started to get a large noise from my PC when switched on. After some time, it disappears. I discovered that the issue is with the Power Supply Unit. Does this mean I have a failing PSU? Will it harm the PC if I didn't replace it immediately? Several years ago I bought a new computer casing which is very weird. Its small and compact. Normally, we have the PSU in the top. But in here, the PSU is on the bottom and right below the hard drive. Recently, two of my hard drives started to show problems. Read errors and bad sectors. Can it be the PSU and the design of the casing? Here's an image of the PSU and the hard drive :

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• Does ZFS cache Compressed or Uncompressed data in a ZFS file-system with compression turned on?

  - by George Bailey

  ZFS supports file-system compression and it also caches frequently or recently accessed data. If a system has lots of CPU but the underlying data storage system is slow. It is possible that ZFS would perform better with compression turned on. This can be easily tested when writing files by measuring CPU and disk usage and throughput. (of course latency may exist,, but this would not be an issue for large files). But what about cache? If data will have to be decompressed every time it is read then this is probably less of a good idea. Is the cached data compressed?. Does anybody have some information on this?

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• How can I accurately determine the age of a hard drive?

  - by Todd Stout

  Yes, if it's large, heavy, and only 65 Meg in capacity, you can assume it's ancient. An RLL controller would positively indicate the drive is from antiquity. What about drives that are only 3 or 4 years old? If I know the serial number, make and model is there a public database that indicates a manufacturing date? Update: As trite as this question might seem to some, the hard drive I was looking at that precipitated this question had no obvious manufacturing date stamped on it. I realize that most do. I think the answers given are very useful to myself and others.

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• Cisco ASA - Unable to create "range" type of network object on 8.2

  - by j2k4j

  I'm wanting to block a range of ip addresses on my Cisco ASA 5520 (8.2) using ASDM 6.4. In the help files/cisco documentation, it says, just create a network object with a "range" type, and use that in a blocking access rule... When I'm accessing the ASA (8.2) with ASDM 6.4, I go to configfirewallobjectnetwork objects & groups, then click "add" to add the IP range as a "network object", I get the following 4 fields to fill out: Name: IP address: Netmask: Description: That's all... In the context-sensitive help files, it says that there should be a Type drop-down to select, with "range" being one of the options, but there is no "Type" drop-down list... If I try to create a "network object group" instead of just "network object", then I get a "Type" drop down list, but it only contains two options: network & host (No "Range" option here either) Can someone help me figure out how to block a range of IP's, using the current 8.2 version on the ASA? Thanks for any pointers or tips!

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• Is there any two-panels bookmarks manager for Google Chrome?

  - by L. Shaydariv

  Hi to all. I'm just wondering, is there any two-panels-interface (like Total Commander, File Manager, etc) bookmark manager, extension, etc for Google Chrome? Using of the default bookmark manager is not so suitable because of two reasons: 1) I've gathered a very large collection of bookmarks (please, don't ask why) 2) bookmarks hierarchy tree always expands its branches when the bookmark manager is open (this makes the moving of bookmarks through the bookmark tree much and much harder). I tried to use Link Commander but it's very and very slow. Any suggestions? Thank you for advices.

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• High-res icon in Windows Vista alt-tab thumbnail preview?

  - by netvope

  I have customized my alt-tab screen with the following: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\AltTab] "OverlayIconPx"=dword:00000040 "MaxThumbSizePx"=dword:00000100 "MinThumbSizePcent"=dword:00000064 It works great: the thumbnail becomes 256 pixel wide and the icon at the corner of the thumbnail becomes 64x64 pixels. However, Windows doesn't load the high-res icons from the programs; instead, it uses the 16x16 pixel icon and scaled it up by nearest-neighbor. I'm sure the programs has high-res icons because I saw them with in "Extra Large Icon" view in Explorer. So the question is: How can I force Windows to load the high-res icons for the alt-tab thumbnail preview? (Perhaps a registry key, or a .dll hack/injection?)

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• Batch edit (not rename) file properties in windows

  - by Jay

  I have a large directory of downloaded shareware. I keep track of what i have by individually editing the properties of each program. However, some of the programs are multipart .rar types. And i have at least a few hundred programs so far. I am looking for a utility that will let me batch edit file properties such as Title, Author, Summary, and Comments, so I don't have to edit each file or file part individually. Windows doesn't let me do this in Explorer. Powerdesk has a proprietary system, but it isn't preserved when moving or copying files. Any Suggestions?

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• Increasing load capacity for growing website

  - by markxi

  My website currently runs on a dedicated web server (with LiteSpeed) and dedicated MySQL database server. It's a download based site with a lot of user-generated content, which can be streamed and downloaded, there are also thousands of thumbnails and static content. I'm at the stage where the web server can no longer handle the amount of traffic, so I'm looking a how best to increase capacity considering the large amount of downloadable content. My host suggests mirroring everything on a second web server and distributing the load between them using either DNS Made Easy, or to have my own load balancer (using ldirector) in front of the two web servers. Could anyone advise whether the above method would be the best option? Does any one have any experience with DNS Made Easy and/or ldirector? I'd appreciate any help.

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