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• PHP array of object(stdClass) fusion/intersect?

  - by Gremo

  $arr1 is an associative array of anonymus objects: array 15898 => object(stdClass)[8] public 'date' => int $arr2 is another associative array with two (or more, it's not fixed) properties: array 15898 => object(stdClass)[10] public 'fruits' public 'drinks' I can't find any function for intersect and content fusion when dealing with objects. Basically i'd like to obtain: array 15898 => object(stdClass)[8] public 'date' => int public 'fruits' public 'drinks' Question is: is this even possible?

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• Windows/Samba connection error

  - by Gomibushi

  I have a Linux fileserver serving up /home for linux and windows users. I was able to connect from my windows client, but not from a DC. Then suddenly I could connect from the DC too. The linux servers run Centrify clients, and as such are part of the domain. All on same subnet. This is what the the log.smbd says, repeatedly: [2010/02/11 11:25:57, 0] lib/util_sock.c:read_data(534) read_data: read failure for 4 bytes to client 192.168.200.3. Error = Connection reset by peer On Windows it appeared as an "unknown error". EDIT: the error code is "0x80004005". We are developing a system depended on the samba share, and are worried this will appear again. It would be nice to pin point the root of this. Any ideas what this might be? Places to look?

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• ServerA can't access ServerB through UNC path. How do I troubleshoot?

  - by cparker4486

  All my servers are in the same domain on the same network. ServerA cannot access ServerB through UNC path. However DNS resolves correctly for ServerB from ServerA. For example "ping ServerB" works as expected. ServerB can reach ServerA through UNC path without any problem. Likewise all other servers and clients can reach ServerB through UNC path without any problem. The software firewall on ServerB is not turned on and there are no hardware firewalls getting in the way. This makes no sense and I don't know how to troubleshoot it. Nothing shows up in the event logs of ServerA and ServerB has one event (repeatedly): Event ID: 3019, Source: MrxSmb. ServerA is Server 2008 R2. ServerB is Server 2003 R2. I have other 2008 R2 servers that connect without any problem.

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• Java and Sendmail HELO requires domain address

  - by ealgestorm

  I am trying to set up emailing from a java web application hosted on a linux server (Cent OS) in apache. Sendmail is working fine from the command line as root on localhost but when trying to send emails from the java web app (also on the same server from localhost) the following java exception is thrown. 501 5.0.0 HELO requires domain address EDIT: I have read that some people have found this is due to an incorrect hosts entry currently the hosts file contains 127.0.0.1 Centos-VPS localhost.localdomain localhost and i'm not sure what the Centos-VPS bit at the start is for but this is a clients hosted server so don't really want to break stuff EDIT see the RFC is helpful ... 501 Syntax error in parameters or arguments Now I know what the problem is! (note the sarcasm people.)

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• Using pthread condition variable with rwlock

  - by Doomsday

  Hello, I'm looking for a way to use pthread rwlock structure with conditions routines in C++. I have two questions: First: How is it possible and if we can't, why ? Second: Why current POSIX pthread have not implemented this behaviour ? To understand my purpose, I explain what will be my use: I've a producer-consumer model dealing with one shared array. The consumer will cond_wait when the array is empty, but rdlock when reading some elems. The producer will wrlock when adding(+signal) or removing elems from the array. The benefit of using rdlock instead of mutex_lock is to improve performance: when using mutex_lock, several readers would block, whereas using rdlock several readers would not block.

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• Windows XP Map drive failed

  - by bajohns

  Greetings, I have a Windows Web Server 2008 VPS and two client machines. One is a Windows 7 box and the other XP. I configured one folder as a share on the 2008 box and attempted to mount it on each of the clients. The catch is it won't work with XP. Same username/password but I get Access granted on the Win 7 but for XP I get: Failure Reason: Unknown user name or bad password. Status: 0xc000006d Any ideas? If this duplicates any other question please refer me but I cannot seem to find the answer.

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• Disabling certain JBoss ports

  - by Rich

  We are trying to configure JBoss 5.1.0 to be as lightweight and as secure as possible. One of the parts of this process is to identify and close any ports we do not need. Three ports that we have outstanding but don't believe we need are: 4457 - bisocket 4712 - JBossTS Recovery Manager 4713 - JBossTS Transaction Status Manager We don't think we need any of these features (but could be wrong). Bisocket seems to be a way for JMS clients behind a firewall to communicate with JBoss. We hardly use JMS now and when we do, it is very unlikely that we will need this firewall traversing ability. I am less sure about whether we need the two JBossTS ports - I am guessing these are used in a clustered environment - we aren't clustered. So my question is, how do we disable these ports (and associated processes where possible), or if we need these ports, why do we need to keep them open?

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• Survive a Software Audit

  - by rosepost1150

  I received a letter from Autodesk asking for a "License Assessment". I understand it as a software audit. They plan to do it remotely. The thing is, I'm a freelancer, I don't use any Software Asset Mangment software, and I just recently swap out my hard drive for a new one, and did a complete clean install, and then I received this request from Autodesk. There is almost nothing on my hard drive now. What do software auditors do when they experience this? Will they (are they allowed) to contact my clients (that info is all over the web..) to get information since they found nothing here?

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• Find all those columns which have only null values, in a MySQL table

  - by Robin v. G.

  The situation is as follows: I have a substantial number of tables, with each a substantial number of columns. I need to deal with this old and to-be-deprecated database for a new system, and I'm looking for a way to eliminate all columns that have - apparently - never been in use. I wanna do this by filtering out all columns that have a value on any given row, leaving me with a set of columns where the value is NULL in all rows. Of course I could manually sort every column descending, but that'd take too long as I'm dealing with loads of tables and columns. I estimate it to be 400 tables with up to 50 (!) columns per table. Is there any way I can get this information from the information_schema? EDIT: Here's an example: column_a column_b column_c column_d NULL NULL NULL 1 NULL 1 NULL 1 NULL 1 NULL NULL NULL NULL NULL NULL The output should be 'column_a' and 'column_c', for being the only columns without any filled in values.

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• How do you deal with the more mundane parts of programming tasks?

  - by Uri

  My experience as a developer is that many projects or tickets are a mix of a short and focused very interesting task (e.g., designing some API or a platform to solve something) and a lot of repetitive and mundane tasks that cannot be automated (such as certain refactorings to use the API or platform, implementation of certain tests, some GUI handling, etc). I believe that this is the nature of our profession, unless we are high-level architects or managements and can delegate this work. The only item in my personal arsenal when dealing with these tasks is to devote some of my attention to radio or audiobooks (preferably not in English as I find it hard to concentrate on two "streams" of English at the same time). I maintain sufficient attention to carry the task and don't lose concentration as fast. I'm wondering how others cope with these and maintain concentration.

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• Count the number of objects in an Image

  - by kunjaan

  I am investigating the possibility of image processing to identify certain objects and also count them in an image. I will be given a picture and I need to identify the number of boxes present in that image. Does anybody have any experience with any Machine Vision/ Image Processing libraries like ImageJ, Fiji, JAI, jMagick ,Java Vision Toolkit? Which do you think is best suited for the job? What do you guys suggest? If the APIs can be used from Java, it would be better. Thank you. Edit: I am dealing with warehouse brown boxes. Yes I am talking about regular photos. The source is usually a mobile phone picture.

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• What in-client caching options work well with Cassandra and Java?

  - by sanity

  I'm currently architecting a system that must be capable of dealing with tens of thousands of writes per second. I am more-or-less settled on using Apache Cassandra for the persistence layer, and will be using Java for the application layer, but there are situations where I need to quickly access data in a way that picks up any changes within seconds. Hitting Cassandra every single time I need to check this data for changes will be too slow, which means I need to use some kind of application layer caching. To ensure that the cached data remains current, ideally it would support some kind of multicast-based cache invalidation. What are my options?

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• C++ allocate objects on heap of base class with protected constructors via inheritance

  - by KRao

  I have a class with protected constructor: class B { protected: B(){}; }; Now I derive from it and define two static functions and I manage to actually create objects of the class B, but not on the heap: class A : public B { public: static B createOnStack() {return B();} //static B* createOnHeap() {return new B;} //Compile time Error on VS2010 }; B b = A::createOnStack(); //This works on VS2010! The question is: 1) Is VS2010 wrong in allowing the first case? 2) Is it possible to create objects of B without modifying B in any way (no friendship and no extra functions). I am asking, because it is possible to make something similar when dealing with instances of B and its member functions, see: http://accu.org/index.php/journals/296 Thank you in advance for any suggestion! Kind regards

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• Running a service as root

  - by kovica

  I have a java program that I use to automate the process of creating VPN settings for clients. The program calls couple of bash scripts, create and copies files around. I have to run it under root user because the whole VPN config is under /etc/openvpn. For this directory I need root privileges. On the same machine I have Glassfish application server and it will call the mentioned Java program. Glassfish is run under non-root user. What is the best, most secure way of running a program as a root user of course without entering a password if I run it via sudo?

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• Internet sharing over LAN on Windows Server 2012

  - by USER

  I have a DSL modem connected to a server (ON NIC1) running Windows Server 2012 and 7 computers (running Windows 7 32-Bit) connected to a server though a network switch (ON NIC2). I shared the internet connection from the server through DHCP so I am able to access the internet from those 7 computers, but I am unable to: Access Google.com Activate Windows Update Windows An error is arising that says UNABLE TO ACTIVATE WINDOWS Activation Error Code: 0x80072EE2 Firewall and Anti-Virus are off on both the Server and the Clients. Is there is any additional setting that I want to do?

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• Users own mapped network drives disappear when I set a GPP mapped drive

  - by Kim

  All the clients use Windows 7 SP1 x64 Enterprise. The domain controllers are Windows Server 2008 R2. I have configured the GPP to map "\server\data" to first available drive letter starting with I:. The action is replace and I have set the Hide/Show this drive and Hide/Show all drives to "Show". I have set targeting to a specified security group. This works as expected and the drive is mapped to the correct users. The problem is that if the user has created their own mapped drives these mappings will disappear when the GPP mapping is applied. Only the mapped drives from the GPP is shown in Explorer. I have not found any other mention of this particular problem when I search the Internet and on TechNet there is no mention of what happens to drives already mapped.

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• std::out_of_range error?

  - by vette982

  I'm dealing with a file with a linked list of lines with each node looking like this: struct TextLine{ //The actual text string text; //The line number of the document int line_num; //A pointer to the next line TextLine * next; }; and I'm writing a function that adds spaces at the beginning of the lines found in the variable text, by calling functions like linelist_ptr->text.insert(0,1,'\t'); The program compiles, but when I run it I get this error: terminate called after throwing an instance of 'std::out_of_range' what(): basic_string::at Aborted Any ideas?

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• Mac OS X 10.5 VNC Resolution independent of hardware display

  - by Qberticus

  Is it possible to set the VNC display resolution that is independent of the hardware resolution when you are using OS X 10.5 Screen Sharing? I have a macbook and a windows box with 3 monitors. I'd like to use the 3 monitors on my windows box to do work on my macbook when I'm at my desk. When I VNC into the macbook I only get the resolution of the hardware screen (1280x800). Instead I'd like to use two of my monitors on my windows box to display a large VNC screen from my macbook. The scaling options in the VNC clients (TightVNC and Ultr@VNC) do not adjust the actual resolution of the display they just do image processing. My ultimate goal is for someway to have a virtual display on my windows box that is from my macbook that is independent of the macbook's hardware screen.

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• What does VNC reflectors basically do?

  - by honeybadger

  I am confused about what vnc reflector does. From the documentation http://sourceforge.net/projects/vnc-reflector/ I got that it's proxysitting between real VNC server (a host) and a number of VNC clients. My confusion is : 1. Does it make any changes to the coming stream from server 2. Does it make 1 connection with server to connect to many client or the connections are proportionate. Documentation is not clear in this. If anyone can help me?

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• Windows Server 2008 without telnet client - how to test connecting to remote ports without installing anything new?

  - by S. Cobbs

  I'm looking to see if anyone knows of slick tricks to test connections to remote server ports from Windows server 2008 and variants that don't include the telnet client installed by default. Reason being, I sometimes have clients that want to connect to port 25 for example on a remote server and say they can't. I used to run a quick test by using "telent mailserver.tld 25" or whatever to see if I could get a response on that port. I don't want to have to install the telnet client just to test this if I dont have to - are there any other native windows utilities that will allow me to connect to a remote port?

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• Is the development stack of java/spring/hibernate/eclipse/tomcat/mysql riddled with config hacking?

  - by Blankman

  From a M$ development perspective, using things like vs.net/c#/asp.net/asp.net mvc/sql server, things are pretty much smooth. (Obviously for someone coming from a microsoft background like me). Now I love the idea of open source, linux and terminal servering into the computer and doing things via the command line, no license issues really, etc. I've tried firing up eclipse etc., but I always seem to get stuck on some configuration issue or another. Does it get easier or is it just the territory when you are dealing with the java stack?

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• Constant embedded for loop condition optimization in C++ with gcc

  - by solinent

  Will a compiler optimize tihs: bool someCondition = someVeryTimeConsumingTask(/* ... */); for (int i=0; i<HUGE_INNER_LOOP; ++i) { if (someCondition) doCondition(i); else bacon(i); } into: bool someCondition = someVeryTimeConsumingTask(/* ... */); if (someCondition) for (int i=0; i<HUGE_INNER_LOOP; ++i) doCondition(i); else for (int i=0; i<HUGE_INNER_LOOP; ++i) bacon(i); someCondition is trivially constant within the for loop. This may seem obvious and that I should do this myself, but if you have more than one condition then you are dealing with permuatations of for loops, so the code would get quite a bit longer. I am deciding on whether to do it (I am already optimizing) or whether it will be a waste of my time.

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• PHP attempting to make JavaScript friendly timestamp, failing, returns 1.34899651119E+12

  - by chris

  Well, not sure whats going on. I have been trying to follow by examples I have found here on stack, on google, even an answer someone gave me a week+ ago, which unfortunately I wasn't able to test until today. Anyway I am attempting to generate a javascript friendly timestamp via php so I can get my times synced up. The best logic I could find overall was something dealing with microtime. However that doesn't seem to work as expected, not even in the slightest. Right now I am using microtime(true)*1000; and am getting 1.34899651119E+12 for the result. Did I some how manage to mess up that one tiny line of code, Im not sure.

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• Replacing emty csv column values with a zero

  - by homerjay

  Hey, So I'm dealing with a csv file that has missing values. What I want my script to is: #!/usr/bin/python import csv import sys #1. Place each record of a file in a list. #2. Iterate thru each element of the list and get its length. #3. If the length is less than one replace with value x. reader = csv.reader(open(sys.argv[1], "rb")) for row in reader: for x in row[:]: if len(x)< 1: x = 0 print x print row Here is an example of data, I trying it on, ideally it should work on any column lenghth Before: actnum,col2,col4 xxxxx , , xxxxx , 845 , xxxxx , ,545 After actnum,col2,col4 xxxxx , 0 , 0 xxxxx , 845, 0 xxxxx , 0 ,545 Any guidance would be appreciated

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• Cisco 5505 VPN RDP not working

  - by user1058275

  I am in dire straights over here. We just changed our LAN from a 192.168.1.0 to a 172.16.4.0. We run Active Directory in our environment and our gateway is a Cisco 5505 ASA. Since the change, our clients can VPN in and make a connection but cannot RDP to any machines that they need to get to on the LAN that they VPN into. I updated the VPN address pool and DNS servers but I'm not sure what else I need to configure. I can send anything you need as I am not an expert and I really, really appreciate the help!

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