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• Why does mod_auth_kerb have trouble using a machine account?

  - by joeforker

  Instructions for using mod_auth_kerb to authenticate a Linux web server against a Windows domain say it doesn't work to link a machine account with the service name HTTP\[email protected]. Why is it necessary to have a dummy user account instead of a machine account?

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• How can I set a minimum thumbnail size with ImageMagick?

  - by Zilk

  I'm trying to create thumbnails of JPG photos using ImageMagick's convert tool. The thumbnails need to have a defined size (210x159), no blank areas, and the image can be cropped if necessary. Unfortunately, I only have ImageMagick 6.3.7 available, which doesn't support the '^' geometry modifier (added in v6.3.8-3). Is there another way to achieve this in earlier versions of ImageMagick? Thanks in advance.

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• What is the overhead when redirect through mod_proxy

  - by ivoba

  I have an API that used to run on Apache but now is served via lighttpd. I can easily switch the API URL in the app to the lighty port like api.net:81. I wonder if I should use mod_proxy instead to have cleaner urls. There is no redirect for legacy urls necessary. What would be the overhead for the Apache in between compared to the direct call? Would mod_proxy and Apache steal the benefit of lightys lightweightness?

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• Hotel like Wifi manager

  - by flpgdt

  Does anyone knows which are these systems that manages paid wifi networks and some hotels and airports? Even better, would anyone know a open/free project that would do or could be adapted to that end? The idea is simple, I want to let the network open at physical level so anyone can connect. After connected however, the clients would have access only to a specified page where they can logging in, and doing the necessary validations the router would allow these of those ports (or even everything) for his IP.

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• Problem while downloading Free App from iTunes

  - by yakub_moriss

  Hi,All I want to download free Application from iTunes. I have AppleId but when i trying to download the App, it ask for Creditcard information. Is it necessary to give CreditCard details for downloading free App also ? Thanks in Advace...

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• SVN commit failed

  - by superuser

  D:\svnroot>svn commit -m "Type your justification here" --username svnu --password test svn: Authorization failed I'm sure the username/password is correct(in conf/password),is it necessary to have exactly that user on the remote svn server?

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• Has anyone tried to DIY his own router?

  - by router

  Can someone provide all necessary components to assemble a router? Especially,what's the component to make it programable? Seems google doesn't give such information .

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• Has anyone tried to DIY his own router?

  - by router

  Can someone provide all necessary components to assemble a router? Especially,what's the component to make it programable? Seems google doesn't give such information . UPDATE I'm not gonna use a computer as router,definitely perfer an embeded device,but what's the component list of the device?

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• Secure IIS/MS-SQL.

  - by user30850

  I have Windows Server 2008, with IIS 7.5 and SQL Server 2008. I want to install DotNetNuke which is an ASP.NET application. What are the necessary precautions to not to get pwn3d.

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• Confused about setting up subversion

  - by apache

  I've already compiled and installed subversion, now trying to add users to it. And I find two articles on this, but they seem to be going in entire different direction. The 1st is here, which looks very simple, and seems it's not necessary to create a user account(useradd ...) the 2nd is here, which is a lot more complicated, and seems I need to create a user account for each svn user. Which one should I follow?

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• What is the reason partitioning is usually a step in installing multiple OS's?

  - by P.S.

  What is the reason partitioning is usually a step in installing multiple (2) operating systems on the same computer? Does an operating system have to have it's own partition to run or can it run in the same partition as another operating system? (i.e. -can two of the same flavor run in the same partition but if you have one Linux and one windows it needs to be partitioned?) Is it necessary to make disk partitions to run multiple operating systems?

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• pretty-printing IP packets

  - by pts

  I'm receiving IP packets using the SLIP protocol, and I'd like to pretty-print them similarly to how tcpdump does it. My program is able to decode the SLIP protocol and create a single string containing an IP packet if necessary. I couldn't find any relevant tcpdump command-line flags except for -r. The file format is documented at http://www.tcpdump.org/pcap/pcap.html , but it looks a bit too complicated. Is there a Linux tool for pretty-printing raw IP packets?

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• What will happen to my installed softwares if I migrate to Windows 7?

  - by Junior Mayhé

  Hello Imagine you're using Photoshop, SQL Server, Visual Studio, Winrar, and any other installed software on Windows Vista. What will happen to them if you upgrade you Windows Vista to Windows 7. Are they still there? Or it's necessary to reinstall all softwares again?

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• How to back up the system to mobile hard disk?

  - by PHP

  How do I back up my system to a mobile (external) hard disk, and then recover from it when necessary? I'm using windows XP Also, does most ghost software back up only C: or all disks?

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• How to remove a non-empty directory which is not owned by the user in Linux?

  - by Alex B

  If a directory "foo" is owned by user A and contains a directory "bar", which is owned by root, user A can simply remove it with rmdir, which is logical, because "foo" is writable by user A. But if the directory "bar" contains another root-owned file, the directory can't be removed, because files in it must be removed first, so it becomes empty. But "bar" itself is not writable, so it's not possible to remove files in it. Is there a way around it? Or, convince me otherwise why it's necessary.

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• is it possible to synchronize the states of TCP proxies in real time (for real-high-availability of SLB)?

  - by Song

  Consider that there are two server load balancers working in the tcp proxy mode (e.g., for L7 load balancing). Is it possible to synchronize their states in real time so that they can be a backup for each other? in case that one is down, the other still has all necessary states to uninterruptedly support all existing TCP connections. I understand that this is hard, but I am wondering whether any free/commercial LB already supports this feature. Thank you!

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• Can I change a user password in Linux from the command line with no interactivity?

  - by Paul Hoffman

  I have a specific use case where I would really like to be able to change a user's password with a single command with no interactivity. This is being done in a safe fashion (over SSH, and on a system with only one user able to be logged in), so it's fine to expose the new password (and even the old one, if necessary) on the command line. FWIW, it's a Ubuntu system. I just want to avoid having to add something Expect-like to this system for just this one task.

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• Where is the best place to label a server?

  - by Celeritas

  There isn't much room on server chassis and I'm wondering where a label with the servers name should go? Is there any other information in addition to the name that should go on the label? Does it make sense to label each hard drive in a server or is that not necessary? There certainly is overkill, when I worked at Big Blue labeling was a huge source of bureaucracy, even a projector needed to be labelled and have it's whereabouts routinely reported.

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• smtp(s) proxy to monitor outgoing spam

  - by Zulakis

  I am looking for a smtp proxy to install on our gateway which should monitor outgoing smtp traffic to identify the source of recently occuring spam attacks from our network. It would be enough if this could log all outgoing mails, no actual filtering must be done as I'm going to do this manually. Also, is it possible to monitor smtps ports 465 and 587 or is it necessary to completely block these ports to stop spam?

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• I want to send Silent SMS

  - by user554445

  Hi, somebody help me..... It is sometimes necessary for me can send silent SMS to other subscriber, and for this purpose exist such program as Hushsms but It is intended for users Windows Mobile, and I prefer (and use) Nokia n97 with another operating system. Who knows the similar program for Symbian OS?(...or may be another way ?? decision of this problem) It is very important for me. Thankful in advance

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• How can I populate other columns after user selects choice in drop-down?

  - by user360332

  I have a spreadsheet that is essentially going to be a form for our user to print out and hand to the necessary individuals. What the user needs to be able to do is select a customer number from a drop down, choose his number, have 2 other (so a total of 3) columns populate. I need the rest of the worksheet to stay in place. I have tried just about everything. How can I solve this with the simplest solution possible?

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• What is a good set and forget file version tracking / backup application for windows?

  - by tomwoods

  When I make changes to files, I keep on finding myself "saving as" and adding the current date to the file. It slows me down, and it creates a bunch of files that clot my folder. I would prefer to be able to Right Click on a file from the File Explorer and select to save different versions of this file, so that each time I save it, it saves a copy somewhere, that I can access in the future if necessary. Is there any application that achieves this?

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• Is it possible to use Microsoft's "Secure Connection Rules" (IPSec) with VPN?

  - by Tie-fighter

  Hello :) Is it possible to use Microsoft's "Secure Connection Rules" to authenticate/encrypt connections while using VPN at the same time? What are the configurations necessary? It should look like this: Client A <-- VPN --> VPN Gateway <-- LAN --> Client B FTPd <------------- IPSec -------------> FTP (I know there are other ways to secure FTP, it's just an example) Thanks

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• sed: replace a certain pattern with an arbitrary string in between

  - by The Journeyman geek

  I'm trying to clean up a log file for better readability - there's a load of un-necessary stuff there to my needs - i basically have to replace sshd[xxxx] where xxxx is an arbitrary number with, well, either a space or nothing. While i can replace a known string, i have no idea how to do a sed wildcard in this case- So- how do i do that?

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• Dynamic Type to do away with Reflection

  The dynamic type in C# 4.0 is a welcome addition to the language. One thing Ive been doing a lot with it is to remove explicit Reflection code thats often necessary when you dynamically need to walk and object hierarchy. In the past Ive had a number of ReflectionUtils that used string based expressions to walk an object hierarchy. With the introduction of dynamic much of the ReflectionUtils code can be removed for cleaner code that runs considerably faster to boot. The old Way - Reflection Heres...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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