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• Run a script as root from apache

  - by Lord Loh.

  I would like to update my hosts file and restart dnsmasq from a web interface (php/apache2). I tried playing around with suid bits (the demonstaration). I have both apache and dnsmasq running on an EC2 instance. I understand that Linux ignores the setuid bit on text scripts, but works on binary files. (Have I got something wrong?). I added exec("whoami"); to the example C program in Wikipedia. Although the effective UID of the C program is 0, whoami does not return root :-( I would thoroughly like to avoid echo password | sudo service dnsmasq restart or adding apache to the sudoers without password! Is there a way out? How does webmin do such things?

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• Can I use applescript to click buttons in background?

  - by Giorgio

  Sorry for this generic and probably bad-written question. I've never programmed in applescript, but I'm quite familiar with other coding language. I'm in the need of clicking on 2 sequential button inside the lobby of a software (when you click the first a popup appears and we should click 'ok'). However things are a little bit more complicated then this because: 1) the lobby of this program isn't in foreground: it's covered by other windows opened. (I don't have experience so I don't know if this represent a problem). 2) there should be a timer and the program should click this button at regular intervals. Is this feasible with applescript?

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• Cisco ASA Multiple Public IP

  - by KGDI

  I have a Cisco ASA5510 and articles related to ASA and mulitple Public IP says this cant be done. My question is how to best solve a scenario like this: I have 3 zones, Outside, Inside and DMZ Outside is Internet Inside is Client machines DMZ is a zone for servers related to external and internal services. My scenario is a bit more complex, but to keep things simple this will do: I want to place an Exchange server and a web server (externally reachable in the DMZ zone) The webserver uses both TCP80/443, the Exchange server uses 443 So to the problem: With the ASA only having one public IP, how would you make a DNAT to port 443 on both the internal hosts behind 1 Public IP? Usually, when i do this kind of scenario With Linux boxes i use alias Interfaces like eth0:0, eth0:1 and set 1 Public IP on each. To me this must be a pretty common scenario, any ideas on how to solve it With ASA? /KGDI

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• Upgrade to java 1.7 in eclipse on mac

  - by user2159614

  I'm sort of a beginner with eclipse but I want to update the libraries or build path or whatever to java 1.7 from java 1.6 and I can't figure it out. I'm a computer science student at the university of washington and various TA's and students have tried to figure out this problem but it's stumped them all. I've installed java 1.7 from Oracle a few times already and the java section of system preferences says I have 1.7 but java -version in terminal says: java version "1.6.0_41" Java(TM) SE Runtime Environment (build 1.6.0_41-b02-445-11M4107) Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-445, mixed mode) What's going on here? My mac is totally up to date on everything else

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• How do I enable subfolders in Dovecot?

  - by yarun can

  In the past I was able to drag and drop my folder with subfolders (local emails) into my imap accounts inside Thunderbird. Now I moved to my own vps and its running Dovecot. So far so good with emails. Today I wanted to copy some folders with messages again but I realized that it does not let me copy to folders. I can drag and drop individual emails into some folders in Imap however folders stuff does not work. I am not sure what this feature is called. The previous email servers might be using some other imap server so I am really not sure what it might be even called. Is this a Dovecot or Thundenbird thing? If it is a Dovecot feature how I enable it on my server? Dovecot is running on Debian Wheezy 64 bit vps thanks

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• How to block a website completely?

  - by user37076

  I want to block some sites(e.g. youtube,news sites ), because I have a problem with procrastination and I find these websites affect my productivity very much. I used to block them by adding them to HOSTS file. However, gradually every time I want to take a break, I open the hosts file and comment my block again. Is there any way I can block the websites and cannot (at least a little bit hard, e.g. I have to reboot my pc) unblock them. I have no access to the router or any firewall, besides the ones on my computer. I just want to FORCE myself to work without any chance to procrastinate.

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• Unistalled C++ Redistributables on Windows Vista

  - by VusP

  Windows Vista Service Pack2 32 bit I uninstalled C++ re-distrubutables (was not aware they are necessary for some applications to run) and I am facing error Cannot start application because the side-by-side configuration is not correct when i start applications like Avast, Revo Uninstaller etc. I came across this page. But the downloaded vcredist_86.exe doesn't seem to do much. It extracts itself and that's it nothing after that. No error nothing. I just finished installing 300+ MB updates on my system, so i don't want to use the System Restore option [And, I don't know which Restore Point to revert to]. Any other way to get this done?

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• Dedicated server given, how to start?

  - by eduardito

  Hello, I've been given a dedicated server. Unfortunately, I have no idea what to do / how to manage it. I have background in many fields on Computer Science but never got to focus on networking, server management, etc. What I'm asking is for recommended books, Basically, I would like to be able to be proficient and understand well how to manage domain names, zones, setting up mail servers, being able to install easily any web server, and such. Everything needed for proper server management through the shell. I will probably stick with Parallels, or Cpanel for a bit. But I dislike those, especially how it add a lot of intruding user accounts and configs on the file system. Thank you

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• Windows 7 network share issues w/XP & SBS 2K3

  - by Kevin K

  Hi, my Windows 7 Ultimate 64 bit computer has issues when accessing SBS 2K3 or XP shares. 1) It will not automagically reconnect upon boot. I have a batch file that will do this that utilizes net use (yes I have /persist:yes, but it does not help) to re-map them. 2) After trying to use it for a few minutes, it will not work. Any attempt to access the drive letter that was mapped causes windows Explorer, or other apps. to lock up. These shares work fine from XP & Vista computers. When this happens the internet works fine, just the mapped drives do not work correctly.

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• Apache RewriteRule ignoring RewriteCond?

  - by winsmith

  So I have an Apache running on OSX Server 10.4 (don't ask) with multiple sites. In 0002_[example.com].conf, I have this bit of code: <Directory "/Library/WebServer/Documents/secret/"> RewriteEngine On RewriteCond %{REMOTE_ADDR} !^137\.250\. RewriteRule .* /messages/secret.html </Directory> However, in this configuration, the RewriteCond always seems to evaluate to false, since the secret directory gets shown even if the client's address does not begin with 137.250. If I change the config to this <Directory "/Library/WebServer/Documents/secret/"> RewriteEngine On RewriteRule .* /messages/secret.html RewriteCond %{REMOTE_ADDR} !^137\.250\. </Directory> the condition either does not get evaluated at all or always evaluates to true. Either way, all clients get blocked. What am I doing wrong?

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• Help! Problem dual boot ubuntu windows8 (can't start ubuntu) [duplicate]

  - by a35

  This question already has an answer here: Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported) 5 answers EDIT: I know that there are many topics about dual boot ubuntu windows8, i have read them, my problem is that i cant boot ubuntu neither from HDD nor from live USB. I know about boot repairing, but how can I use it, If i cant boot ubuntu?? I heard about terrible problems with windows 8-linux dual boot, but I really need ubuntu because of school. I read many tutorials how to install ubuntu next to windows8, but despite that a problem accured. Here is what I have done. I have MSI GE60, windows(64bit) is running on mSATA SSD C drive. HDD is divided to two partitions for windows and I left there 50GB for ubuntu. I downloaded ubuntu 12.04.3desktop-amd64(64bit), created bootable USB using Universal USB Installer (recommended on Ubuntu site). I disabled USB legacy support (that Ubuntu could be installed in EFI mode- I was following instructions on Ubuntu site), and also Secure Boot (windows is now angry with me because I turned it off- when I start windows it informs me I should enable that). I inserted USB rebooted computer and chose install ubuntu, divided free 50GB space to swap(2000MB) and rest as ext4 main storage space for ubuntu. Installation passed normally, Ubuntu then asked me to reboot computer. After reboot windows 8 started. Now I can't start ubuntu. When I restart win8 to uefi there is possibility to boot ubuntu, but when I choose it, it crashes. When I choose try ubunfu from connected USB, nothing happend, still dark screed. What is wrong? Can you help me? I am in hurry to do it because of school. Thanks.

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• how can I estimate the conversion speed (fps) of a video based on CPU power? [closed]

  - by Ahoura Ghotbi

  Atm I am running a video sharing website and I am converting alot of videos. the queue is getting a bit too long (400 videos). I am planning on purchasing a new server and I was wondering if there anyway I can estimate the fps while converting 10 videos at the same time? Regards EXTRA INFO I am using MP4Box (which uses ffmpeg) to handle the encoding etc. Its encoding at 23 CRF, audio bitrate of 96 and audio sampling rate of 44100. The server will have the following processor : Dual Opteron 6272 (2 x 16 cores, 32 cores total) + 128GB RAM.

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• Strings are UTF-16&hellip;. There is an error in XML document (1, 1).

  - by Shawn Cicoria

  I had a situation today where an xml document had a directive indicating it was utf-8.  So, the code in question was reading in the “string” of that xml then attempting to de-serialize it using an Xsd generated type. What you end up with is an exception indicating that there’s an error in the Xml document at (1,1) or something to that effect. The fix is, run it through a memory stream – which reads the string, but at utf8 bytes – if you have things that fall outside of 8 bit chars, you’ll get an exception.   //Need to read it to bytes, to undo the fact that strings are UTF-16 all the time. //We want it to handle it as UTF8. byte[] bytes = Encoding.UTF8.GetBytes(_myXmlString); TargetType myInstance = null; using (MemoryStream memStream = new MemoryStream(bytes)) { XmlSerializer tokenSerializer = new XmlSerializer(typeof(TargetType)); myInstance = (TargetType)tokenSerializer.Deserialize(memStream); }   Writing is similar – also, adding the default namespace prevents the additional xmlns additions that aren’t necessary:   XmlWriterSettings settings = new XmlWriterSettings() { Encoding = Encoding.UTF8, Indent = true, NewLineOnAttributes = true, }; XmlSerializerNamespaces xmlnsEmpty = new XmlSerializerNamespaces(); xmlnsEmpty.Add("", "http://www.wow.thisworks.com/2010/05"); MemoryStream memStr = new MemoryStream(); using (XmlWriter writer = XmlTextWriter.Create(memStr, settings)) { XmlSerializer tokenSerializer = new XmlSerializer(typeof(TargetType)); tokenSerializer.Serialize(writer, theInstance, xmlnsEmpty); }

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• Setup SSH key per user for Git access

  - by ThatGuyJJ

  I'm setting up a site that will have multiple development instances running on the same server. Essentially, we'd have dev-a.whatever.com, dev-b.whatever.com, etc.. all running off a single server. I want to give each user some bit of SSH access in order to update and check in code from our Git repository and to manage files via SFTP. However, I want to restrict each user to their own site as well. So if you have access to dev-a.whatever.com, you don't also have access to dev-b.whatever.com and so on. The restriction is already in place if I login via FTP as a certain user, I can't navigate outside my own site -- but if I grant SSH access to that account I can immediately navigate to any file on the server in SFTP. Is RSSH part of the solution? And how can I assign the correct SSH pub key to the corresponding user? We're using BeanStalk for our Git repository management if that makes any impact.

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• Why won't Windows XP 64 install on my machine?

  - by user272671

  I have a hp xw8200 workstation and would like to install Windowx XP 64 bit on it. Problem I seem to be having is when I reboot the machine and try to boot from the CD, nothing happens. Seems that the CD Drive is not being located or does not execute my cd to start the install. I already checked to verify that I can install Windows XP 64bit on my machine and also ensured I have the right bios and drivers for the install, only that the boot just does not take place. Anyone have any idea how I can solve this problem ? http://www.hp.com/workstations/pws/xw8200/xw8200.pdf http://h20331.www2.hp.com/Hpsub/cache/286710-0-0-225-121.html http://h20331.www2.hp.com/Hpsub/cache/286707-0-0-225-121.html thanks in advance

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• Delete Ubuntu and Grub from PC (and BIOS unaccessible)

  - by Temitope

  I've really done a mess while upgrading 12.04 to 12.10, or my PC did, or ubuntu did, I can't really tell. The situation now is I have a dual booting machine, Windows 7 and ubuntu 12.10 -When turning on the PC, I can't access boot options, I've tried every thing, esc, f1 f8, f10 (I have a Hp pavilion) but all I can see is a short-lasting screen with three lines reading something like "error:files not found" or "link not found". So the PC turns to the Grub loader screen. This is already a BIG problem. It means I can't change boot order, and I'm diperate, since it doensn't seem that repairing my operating systems will bring my BIOS back. -If I chose Ubuntu in grup, it loades but then frezes on the desktop, I may be having problem with unity3d, or compiz, which was reported to be crashing the first times I started ubuntu. Now, after turning off and on the pc several times, no crash is reported again. Ubuntu just load my background image and nothing else. Not the side menu, not the header, nothing. Althogh the system seems "functioning", when I press the power button on the PC, for example, the normal shutdown dialog window appears. -If I chose Windows, Grubs tells me that something is not found, and to press any key to continue; I do it and then Windows loads perfectly. What I now want to do is 1- use EasyBSD to change boot order and boot Windows partition first 2- delete the ubuntu partitions from within windows disk manager What I except happening is that My PC turns to, or near to factory booting settings: I press the power button and Windows loads without asking me nothing I have acess to all my hardisk from withing windows Is that what will really happen? Are there danger I'm not seeing? What I don't except happening is The BIOS access key return functioning How could I eventually solve this? I would like to reinstall Ubuntu, 32 bit version this time.

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• libapt-inst1.4:i386 fais to install

  - by user92834

  Today I was notifed of updates, some of them being libapt. So I press "Install Updates", and I got this error: The following packages have unmet dependencies: libapt-inst1.4:i386: Depends: libapt-pkg4.12 (>= 0.8.16~exp12ubuntu10.2) but 0.8.16~exp12ubuntu10.3 is installed Depends: libc6 (>= 2.4) but 2.15-0ubuntu10 is installed Depends: libgcc1 (>= 1:4.1.1) but 1:4.6.3-1ubuntu5 is installed Depends: libstdc++6 (>= 4.4.0) but 4.6.3-1ubuntu5 is installed So I open the terminal and typed sudo apt-get install -f I was shown this: The following extra packages will be installed: libapt-inst1.4 libapt-inst1.4:i386 libapt-pkg4.12:i386 The following NEW packages will be installed: libapt-pkg4.12:i386 The following packages will be upgraded: libapt-inst1.4 libapt-inst1.4:i386 2 upgraded, 1 newly installed, 0 to remove and 18 not upgraded. 1 not fully installed or removed. Need to get 0 B/1,146 kB of archives. After this operation, 3,031 kB of additional disk space will be used. Do you want to continue [Y/n]? I selected "yes". And then: E: Internal Error, No file name for libapt-pkg4.12 Also, when I open the software center, I get a message that the database is broken... I'm using 12.04 64bit But why it wants to install the i386 version? I'm using 64 bit ubuntu...

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• Series On Embedded Development (Part 1)

  - by user12612705

  This is the first in a series of entries on developing applications for the embedded environment. Most of this information is relevant to any type of embedded development (and even for desktop and server too), not just Java. This information is based on a talk Hinkmond Wong and I gave at JavaOne 2012 entitled Reducing Dynamic Memory in Java Embedded Applications. One thing to remember when developing embeddded applications is that memory matters. Yes, memory matters in desktop and server environments as well, but there's just plain less of it in embedded devices. So I'm going to be talking about saving this precious resource as well as another precious resource, CPU cycles...and a bit about power too. CPU matters too, and again, in embedded devices, there's just plain less of it. What you'll find, no surprise, is that there's a trade-off between performance and memory. To get better performance, you need to use more memory, and to save more memory, you need to need to use more CPU cycles. I'll be discussing three Memory Reduction Categories: - Optionality, both build-time and runtime. Optionality is about providing options so you can get rid of the stuff you don't need and include the stuff you do need. - Tunability, which is about providing options so you can tune your application by trading performance for size, and vice-versa. - Efficiency, which is about balancing size savings with performance.

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• I think my computer is eating my USB devices

  - by user1068446

  Hi so I think the USB ports on the front of my desktop PC are eating all the devices that are plugged in. (I've found with a couple of USB disks I put at the start of the year, were then unusable on any device after wards). If this is the case, what's likely to be the problem, and how do I fix it? What would a good, simple way to diagnose the problem be? I'm a bit scared to put any of my USB devices in, because that sounds expensive. (I'm thinking I might look out for some cheap old disks).

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• Question about conditions of vps host provide

  - by baobeiii

  Looking into buying a VPS from a company. In their terms of service it says: User may not: a) Use 25% or more of system resources for longer then 90 seconds. There are numerous activities that could cause such problems; these include: CGI scripts, FTP, PHP, HTTP, etc. So basically your only allowed to use a 1/4 of what your paying for? Anyone know if this is a standard restriction for most hosting providers? Seems a bit ridiculous but i don't know whats normal in the server world. And the weird thing is they only sell xen servers so why can't i use my allotted resources as no-one else can. Thanks.

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• For photography use, is Unity is overheating my laptop? Should I try OpenSuse instead?

  - by SoT

  I am a perfect noob here in the Linux world. Previously was using Windows 7. Mine is an HP laptop - Intel core2duo T5470 @ 1.60GHz × 2 / 965GM with 2GB RAM. I installed Ubuntu 12.04TLS and is quite liking it's display. I really recognized it is 3D before knowing it was Unity 3D interface. My uses are image editing, home uses, downloads, browsing etc.. No video-editing/gaming at all. Being a Photography enthusiast I use image editing programs fairly more. But I am now feeling my laptop is getting a bit overheated - processor and hard-disk. I tried lm-sensor and could not make out much of it. Installed Xsensors.7. It gives the same output as lm-sensors gave me. It gives temperature for 4 things Temp1, temp2, temp3, and temp4. For "acpitz". Please guide me in this. However I wanted to ask something more. Which one is better for working with images - photography I mean - openSUSE 12.1 or Ubuntu with unity 3D? Can I get the display quality with the openSUSE distribution? I heard for laptops openSUSE uses power more efficiently, is there any truth? Please suggest me whether I should try openSUSE or not. If so with which GUI? KDE or GNOME? Thanks in advance. Regards SoT

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• Associate a texture to an object (from a data-model, not graphical point of view).

  - by Raveline

  I'm writing a roguelike where objects and floor can be made of different materials. For instance, let's say we can have a wooden chair, an iron chair, a golden chair, and so on. I've got an Object class (I know, the name is terrible), which is more or less using a composite pattern, and a Material class. Material have different important properties (noise, color...). For the time being, there are 5 different instances of materials, created at the initialization of the game. How would connect an instance of Object with one of the 5 instances of materials ? I see three simple solutions : Using a pointer. Simple and brutal. Using an integer material-id, then get the materials out of a table when engine manipulates the object for various purposes (display, attack analysis, etc.). Not very beautiful, I think, and not very flexible. Using an integer material-id, then get the materials out of a std::map. A bit more flexible, but still not perfect. Do you see other possibilities ? If not, what would you choose (and why) ? Thanks in advance !

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• problems with my touchpad on my netbook

  - by user23421

  ive been having trouble with my touchpad its a synaptic pad. my problem is whenever i drag my finger across i a lot of times get this grey circle and i cant move anymore i have to take my finger off and start again its very annoying and the icon for the touchpad thats by the clock gets like a curved arrow in it and if i move my finger a little bit while this grey circle appears the arrow rotates in a circle its very weird! i have a Asus 1101HAB netbook and ive tried to update the driver when the asus updates appear and when i do it and restart the computer, then a couple days later maybe it pops up again saying i have an update and its for the touchpad and its the same version... not sure if its a bigger problem its only a week old that ive had this computer. If someone could help it would be much appreciated.

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• How to move a Windows instance to a different EC2 data centre?

  - by Darren Cook

  I've a Windows EC2 instance running in one region and need to move it to another region (Tokyo and Singapore in this case). Is that even possible? What potential problems do I need to watch out for? (I found http://stackoverflow.com/questions/2181849/ec2-instance-cloning which is describing how to do it, but appears to assume Linux instances, and to assume the same data centre. Is it possible to move my keys across to another region?) I tried something similar with a Windows instance a few months ago, just trying to clone it in the same data centre, but I couldn't get it working quickly, so I had to give up and just create a fresh instance at that time. This time I've got a bit of breathing space, and want to research how to do it properly! Root Device Type: ebs Block Devices: sda1 xvdf (both are ebs, "attached", and have Delete on termination set to "no"; sda1 is the root device) The AMI is described as "Unavailable" (then an ami number).

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• Is LDAP typically used in conjunction with SAP?

  - by michael

  I have potential clients that all use SAP. To avoid silent push back from IT, we want to make sure we don't add extra complexity to their job if the client (our client internal to the company is not IT) wants to adopt our SaaS. One way to avoid headaches is to add support for LDAP in our SaaS (a bit of work, but nothing major) ahead of time and make sure to mention that to IT. I really know nothing about SAP. Does SAP use an internal or external LDAP server usually? Updated question: A Company relies on an Asset management product from SAP. If I wanted to provide a SaaS that shares space in their workflow, is it advisable to use the SAP product authentication service (if it exists), and if so, do they provide an API?

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