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Articles indexed Tuesday June 1 2010

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• CHROOT for shell script testing

  - by Josh

  I am looking at setting up a shell script in order to properly document and automate the process I am using to setup a few servers we have. In order to test the shell script through its different stages I was thinking a CHROOT would be ideal, since I can wipe out the "virtual root" and create it on the fly. I have never used CHROOT before, however. I was just curious what are the exact steps I would need to follow to implement this process of creating a chroot (with the basic core functions that would be needed to install apache/php/etc.)? and then destroying it?

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• Apache Logs - Not Showing Requested URL or User IP

  - by iarfhlaith

  Hey all, I'm having a problem with a server that keeps falling over. Looking through the Apache error logs it appears to come from a rogue PHP script. I'm trying to track this down using Apache's error_log and access_log but the server log format isn't giving me the detail I need. I suspect the log format isn't sufficient, but I've reviewed the Apache documentation and I've included the switches that I think I need to see. Here's my LogFormat configuration in the httpd.conf file: `LogFormat "%h %l %u %t \"%r\" %s %b %U %q %T \"%{Referer}i\" \"%{User-Agent}i\"" extended CustomLog logs/access_log extended` Using the %U %q %T switches I expected to see the requested URL, query string, and the time it took to serve the request, but I'm not seeing any of this information when I tail the log. Here's an example: 127.0.0.1 - - [01/Jun/2010:14:12:04 +0100] "OPTIONS * HTTP/1.0" 200 - * 0 "-" "Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 (internal dummy connection)" 127.0.0.1 - - [01/Jun/2010:14:12:05 +0100] "OPTIONS * HTTP/1.0" 200 - * 0 "-" "Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 (internal dummy connection)" 127.0.0.1 - - [01/Jun/2010:14:12:06 +0100] "OPTIONS * HTTP/1.0" 200 - * 0 "-" "Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 (internal dummy connection)" 127.0.0.1 - - [01/Jun/2010:14:12:07 +0100] "OPTIONS * HTTP/1.0" 200 - * 0 "-" "Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 (internal dummy connection)" 127.0.0.1 - - [01/Jun/2010:14:12:08 +0100] "OPTIONS * HTTP/1.0" 200 - * 0 "-" "Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 (internal dummy connection)" 127.0.0.1 - - [01/Jun/2010:14:12:09 +0100] "OPTIONS * HTTP/1.0" 200 - * 0 "-" "Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 (internal dummy connection)" Have a made a mistake in configuring the LogFormat or is it something else? Also, each request appears to come from the localhost. How come it's not giving me the remote user's IP address? Thanks, Iarfhlaith

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• Best way to convert from IMAP to POP3?

  - by Brad

  At work, I connect to a corporate Exchange server via IMAP and Thunderbird 3. Over the course of a year or so, I've created quite a few folders on the server and have a lot of mail stored there. I'm hitting the storage limit of my mail account and want to convert to pulling mail down to my local box (running Linux) via POP3. I know that polling mail will only get mail in INBOX, but I'm wondering if there are solutions out there that could be used to pull mail from the other folders as well, or am I doomed to moving mail into the inbox manually and polling over and over again?

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• How can I switch off the insertion of wiki references automatically in OO Writer

  - by cscsaba242

  Hello, I have a pure text and it is inserted into open office writer. After the insertion the openoffice writer replaces the text with wiki references. I could not find where I can switch of this annoying feature. (I have already switched 'autocorrection - url recognition' off) see the pic below http://img143.imageshack.us/img143/402/clipboard02qzn.jpg Thanks the tips in advance. csaba

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• Price drop patterns

  - by doug

  I'm looking to buy a new laptop, and i don't need the top hi-tech because I'll use it for office type applications. In this case, the CPU and RAM are those who are mostly used. For example Intel i3 CPU was launched in Jan 2010 and in this case, the prices for Core Duo technology will drop. Do you know when or which are the signs? Can we talk about such a pattern?

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• Improve Engineering & Construction Project Productivity

  - by [email protected]

  Driving successful project delivery and providing greater value and return for all stakeholders are key goals for firms in the engineering and construction industry. However, increasingly complex construction projects, compressed schedules, ineffective collaboration among project stakeholders, and limited interoperability, can get in the way of these goals and lead to reduced productivity. What E&C firms need are solutions that will improve global team collaboration, optimize processes and better communicate electronic project data. Check out the AutoVue for Engineering and Construction Solution Brief and learn how AutoVue enterprise visualization solutions can: - improve global project collaboration and communication - improve data interoperability - support virtual design and construction projects - improve change management and maintain accountability

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• Is it possible to remove a Password from a PDF file using PHP?

  - by dsdeiz

  Hello, I would like to ask if it's possible to use PHP in removing a password from a password-protected PDF file in which I already know the password? I've seen this page which provides many options but using bash script. :( I was required to use PHP as much as possible. Any suggestions appreciated!

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• What is the difference of using BC keys or default?

  - by Tom Brito

  Both lines of code: KeyPairGenerator.getInstance("RSA") KeyPairGenerator.getInstance("RSA", "BC") works well. So, what's the differecente using BC or not? Is BC completely compatible with the default RSA used? (using sun JDK 6)

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• Log files legal aspect?

  - by relwarc

  I like data. That is why I add a standalone PHP script which logs all relevant HTTP variables like: Date of visit IP User-agent Request URI Referer Am I allowed to store all this in non-public text files? Am I allowed to evaluate the data? What am I allowed to do with the log files? Do I have to delete them after some time?

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• Detect when a users session has exipred

  - by Steven

  Hi, Can anyone tell me how to detect when a users session has exipred in asp? I want to redirect users to a logged out page once the session has expired Thanks Sp

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• Windows XP batch file concat

  - by dls

  I'm trying to accomplish the following ridiculous task: I have a text file containing a set of fully qualified filesnames. I want to iterate through the file and append each line to a common variable, that can be passed to a command line tool. For example, the file might be: C:\dir\test.txt C:\WINDOWS\test2.txt C:\text3.txt and I'd like to assign them to some variable 'a' such that: a = "C:\dir\test.txt C:\WINDOWS\test2.txt C:\text2.txt" A secondary question is - what is a good batch file reference? I'm finding some stuff in the Windows material, and a lot of home-grown websites, but nothing particularly complete. Thanks!

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• WPF CheckBox style with the TextWrapping

  - by Shurup

  I need you a TextWrapping in the WPF CheckBox. Please look at this two samples: <CheckBox> <TextBlock TextWrapping="Wrap" Text="_This is a long piece of text attached to a checkbox."/> </CheckBox> <CheckBox> <AccessText TextWrapping="Wrap" Text="_This is a long piece of text attached to a checkbox."/> </CheckBox> If I use a TextBlock in the Content of the CheckBox, the check element (vertical alignment is top) and the text displays properly, but not the accelerator. If I use an AccessText in the Content of the CheckBox, the check element displays wrong (vertical alignment is center). How to change the style of the elements to display this CheckBox correct?

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• How to make items fill available space in JToolBar?

  - by Konrad Garus

  I have a horizontal JToolbar with JToggleButtons. For some reason it is placed in a container that has larger height. My JToggleButtons use only as much space as they need, leaving ugly empty space below and under them. How can I make them fill all available space without setting size arbitrarily? Similar question: How I can make components fill all horizontal space in a vertical tool bar?

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• jquery script that used to work is not working with jquery 1.4.2

  - by Zayatzz

  ... and i cant figure out why. The script is following: <script type="text/javascript" src="http://path/to/js/jquery-1.4.2.min.js"></script> <script type="text/javascript"> function openMediaPlayer() { $('#flashMovie').animate({'height':'333px'}); } function closeMediaPlayer() { $('#flashMovie').animate({'height':'80px'}); } jQuery(function($){ $('#videoholder').bind('mouseenter', function(){ openMediaPlayer(); }); $('#videoholder').bind('mouseleave', function(){ closeMediaPlayer(); }); }); </script> <div id="videoholder" style="height:80px;width:412px;"> <object width="412" height="80" type="application/x-shockwave-flash" id="flashMovie" name="flashMovie" style="height: 80px;" data="http://path/to/Player.swf"><param name="menu" value="false"><param name="bgcolor" value="#666666"><param name="allowFullscreen" value="true"><param name="flashvars" value="playlistURL=http://path/to/Player/data/playlist.xml"></object> </div> pure and simple resizing flash object. It worked with older(1.3.2) jquery verision. The animate just does not work. Can anyone tell me what i should change to get it working again? Alan.

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• Facebook Like-Button - hide count?

  - by piquadrat

  In the setup dialog for the Like-Button, there are only two options for layout: Unfortunately, the numbers for the website of my employer is nowhere near 22'000, so the powers that be have decided that we should not show the number of "likes" until said number is a little more in our favour. As far as I know, I don't have access to the layout of the button through Javascript or CSS (it's in an iframe served by facebook). Are there any other ways to hide the count?

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• Get absolute (base) url in sinatra.

  - by berkes

  Right now, I do a get '/' do set :base_url, "#{request.env['rack.url_scheme']}://#{request.env['HTTP_HOST']}" # ... haml :index end to be able to use options.base_url in the HAML index.haml. But I am sure there is a far better, DRY, way of doing this. Yet I cannot see, nor find it. (I am new to Sinatra :)) Somehow, outside of get, I don't have request.env available, or so it seems. So putting it in an include did not work. How do you get your base url?

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• Separating a group of functions into an includable file in C?

  - by zebra

  I know this is common in most languages, and maybe in C, as well. Can C handle separating several functions out to a separate file and having them be included? The functions will rely on other include files, as well. I want the code to retain all functionality, but the code will be reused in several C scripts, and if I change it once I do not wish to have to go through every script and change it there, too.

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• Giving another object a NSManagedObject

  - by Wayfarer

  Alright, so I'm running into an issue with my code. What I have done is subclassed UIButton so I can give it some more infomormation that pertain to my code. I have been able to create the buttons and they work great. Capiche. However, one of the things I want my subclass to hold is a reference to a NSMangedObject. I have this code in my header file: @interface ButtonSubclass : UIButton { NSManagedObjectContext *context; NSManagedObject *player; } @property (nonatomic, retain) NSManagedObject *player; @property (nonatomic, retain) NSManagedObjectContext *context; - (id)initWithFrame:(CGRect)frame andTitle:(NSString*)title; //- (void)setPlayer:(NSManagedObject *)aPlayer; @end As you can see, it has a instance variable to the NSMangedobject I want it to hold (as well as the Context). But for the life of me, I can't get it to hold that NSManagedObject. I run both the @synthesize methods in the Implementation file. @synthesize context; @synthesize player; So I'm not sure what I'm doing wrong. This is how I create my button: ButtonSubclass *playerButton = [[ButtonSubclass alloc] initWithFrame:frame andTitle:@"20"]; //works playerButton.context = self.context; //works playerButton.player = [players objectAtIndex:i]; //FAILS And I have initilaized the players array earlier, where I get the objects. Another weird thing is that when it gets to this spot in the code, the app crashes (woot) and the the console output stops. It doesn't give me any error, and notification at all that the app has crashed. It just... stops. So I don't even know what the error is that is crashing the code, besides it has to do with that line up there setting the "player" variable. Thoughts and ideas? I'd love your wisdom!

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• gchi not loading function from file

  - by Delirium tremens

  In test.hs, I have: doubleMe x = x + x In ghci, I type: Prelude> :l test [1 of 1] Compiling Main ( test.hs, interpreted ) Ok, modules loaded: Main. *Main> doubleMe 9 <interactive>:1:0: Not in scope: `doubleMe' *Main> Why? How to fix?

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• Doctrine: how to create a query using "LIKE REPLACE" ?

  - by user248959

  Hi, this SQL clause is working OK: SELECT * FROM `sf_guard_user` WHERE nombre_apellidos LIKE REPLACE('Mar Sanz',' ','%') Now I'm trying to write this query for Doctrine. I have tried this: $query->andWhere(sprintf('%s.%s LIKE REPLACE (?," ","%")', $query->getRootAlias(), $fieldName), 'Mar Sanz')); but I get this error: Warning: sprintf() [function.sprintf]: Too few arguments Any idea? Regards Javi

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• Want to disable flash caching ?

  - by Mina Samy

  Hi all I have a .swf flash gallery that loads pics from a XML file the probelm is when I modify the XML the modifications do not reflect on the flash till I delete the browsing cache from the browser I tried to disable caching using code like this Response.Cache.SetCacheability(HttpCacheability.NoCache); Response.AddHeader("Pragma","no-cache"); Response.Expires = -1; but not working is there any workaround for this ? thanks

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• python [lxml] - cleaning out html tags

  - by sadhu_

  from lxml.html.clean import clean_html, Cleaner def clean(text): try: cleaner = Cleaner(scripts=True, embedded=True, meta=True, page_structure=True, links=True, style=True, remove_tags = ['a', 'li', 'td']) print (len(cleaner.clean_html(text))- len(text)) return cleaner.clean_html(text) except: print 'Error in clean_html' print sys.exc_info() return text I put together the above (ugly) code as my initial forays into python land. I'm trying to use lxml cleaner to clean out a couple of html pages, so in the end i am just left with the text and nothing else - but try as i might, the above doesnt appear to work as such, i'm still left with a substial amount of markup (and it doesnt appear to be broken html), and particularly links, which aren't getting removed, despite the args i use in remove_tags and links=True any idea whats going on, perhaps im barking up the wrong tree with lxml ? i thought this was the way to go with html parsing in python?

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• How to set-up UTC time in w2k8 ?

  - by Fleole

  Hello, I am searching to set the clock of w2k8 in UTC, in w2k3 you could choose the Coordinated Universal time in the option of the clock. (you can still in Vista) Now in w2k8 there is only GMT timezone and no trace of the Coordinated Universal Time a s a choice. Anyone knows how to do it ? Regards

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• Is there an application to check a site for infections?

  - by Chris

  A friend of mine says that a site I frequent was reported by his antivirus software to be infected with a trojan. I can't confirm this because I'm on a Mac, and he's running PC so nothing happens on my end. I'm wondering if there's a web site that I could use to check the site for infection or malicious script.

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• Frequent freezes with constant disk activity on SSD netbook

  - by SamsLembas

  I am running Arch Linux on an HP Mini 1000 with a SSD. The machine is a little under a year old and fairly heavily used. About a month ago the machine started freezing up. During the freezes, the system is almost completely unresponsive, seemingly especially for disk-intensive tasks such as launching an application for the first time since reboot. The disk activity led is always constantly illuminated during the freezes. After somewhere between 30 sec and 3 minutes, the machine returns to normal operation. I am pretty sure that the SSD is the source or the problem. Iotop reports a disk transfer rate of 0 during the freezes, so I think it must be getting "stuck" and simply not performing any r/w during the time. I can't seem to find any information on these symptoms on the Internet, so any input on exactly what might be the cause of this would be greatly appreciated. The machine is under warranty, but I would rather not deal with HP until I actually know what is going on. Thanks.

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