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• sprintf bug with php & apache in windows?

  - by potatoe

  I've run into a strange problem on a WAMP server setup (PHP version 5.3.0, Apache 2.2.11). When using sprintf to output a number, I occasionally get erroneous characters in the output string. Example: (not trimmed from anything, this is the only code in the script) $dt1 = new DateTime('now'); $dt2 = new DateTime('now - 10 min'); $interval = $dt1->diff($dt2); $number = 10.0; $string = sprintf("%.1f", $number); echo "number: $number, string: $string\n"; If I run this at the command prompt with PHP CLI, I get the expected output: number: 10, string: 10.0 However, if I serve it using Apache, in the browser I get number: 10, string: :.0 with a colon where '10' should be. (Note that ':' is the next ascii character in sequence after '9', if $number is 0-9, everything works. Numbers greater than 10 appear to use ascii equivalents - so 11 is ';', 12 is '<', etc.) The strangest part is that the first four lines in the above code sample seem to affect the results. Logically, those statements should have no impact, but if I comment them out or remove them the problem goes away. Any ideas? Anyone else able to replicate this?

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• All possibilities in 2d array

  - by valli-R

  I have this array: $array = array ( array('1', '2', '3'), array('!', '@'), array('a', 'b', 'c', 'd'), ); And I want to know all character combination of sub arrays.. for example : 1!a 1!b 1!c 1!d 1@a 1@b 1@c 1@d 2!a 2!b 2!c 2!d 2@a 2@b ... Currently I am having this code : for($i = 0; $i < count($array[0]); $i++) { for($j = 0; $j < count($array[1]); $j++) { for($k = 0; $k < count($array[2]); $k++) { echo $array[0][$i].$array[1][$j].$array[2][$k].'<br/>'; } } } It works, but I think it is ugly, and when I am adding more arrays, I have to add more for. I am pretty sure there is a way to do this recursively, but I don't know how to start/how to do it. A little help could be nice! Thanks you!

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• Iterating over a String to check for a number and printing out the String value if it doesn't have a number

  - by wheelerlc64

  I have set up my function for checking for a number in a String, and printing out that String if it has no numbers, and putting up an error message if it does. Here is my code: public class NumberFunction { public boolean containsNbr(String str) { boolean containsNbr = false; if(str != null && !str.isEmpty()) { for(char c : str.toCharArray()) { if(containsNbr = Character.isDigit(c)) { System.out.println("Can't contain numbers in the word."); break; } else { System.out.println(str); } } } return containsNbr; } } import com.imports.validationexample.function.NumberFunction; public class Main { public static void main(String[] args) { NumberFunction nf = new NumberFunction(); System.out.println(nf.containsNbr("bill4")); } } I am trying to get it to print out the result to the console, but the result keeps printing multiple times and prints the boolean value, which I do not want, something like this: bill4 bill4 bill4 bill4 Can't contain numbers in the word. true Why is this happening? I've tried casting but that hasn't worked out either. Any help would be much appreciated.

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• Minimizing MySQL output with Compress() and by concatening results?

  - by johnrl

  Hi all. It is crucial that I transfer the least amount of data possible between server and client. Therefore I thought of using the mysql Compress() function. To get the max compression I also want to concatenate all my results in one large string (or several of max length allowed by MySql), to allow for similar results to be compressed, and then compress these/that string. 1st problem (concatenating mysql results): SELECT name,age FROM users returns 10 results. I want to concatenate all these results in one strign on the form: name,age,name,age,name,age... and so on. Is this possible? 2nd problem (compressing the results from above) When I have comstructed the concatenated string as above I want to compress it. If I do: SELECT COMPRESS('myname'); then it just gives me as output the character '-' - sometimes it even returns unprintable characters. How do I get COMPRESS() to return a compressed printable string that I can trasnfer in ex ASCII encoding?

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• determining the starting speed for an accelerated animation (in flash/actionscript but it's a math question)

  - by vulkanino

  This question burns my brain. I have an object on a plane, but for the sake of simplicity let's work just on a single dimension, thus the object has a starting position xs. I know the ending position xe. The object has to move from starting to ending position with an accelerated (acceleration=a) movement. I know the velocity the object has to have at the ending position (=ve). In my special case the ending speed is zero, but of course I need a general formula. The only unknown is the starting velocity vs. The objects starts with vs in xs and ends with ve in xe, moving along a space x with an acceleration a in a time t. Since I'm working with flash, space is expressed in pixels, time is expressed in frames (but you can reason in terms of seconds, it's easy to convert knowing the frames-per-second). In the animation loop (think onEnterFrame) I compute the new velocity and the new position with (a=0.4 for example): vx *= a (same for vy) x += vx (same for y) I want the entire animation to last, say, 2 seconds, which at 30 fps is 60 frames. Now you know that in 60 frames my object has to move from xs to xe with a constant deceleration so that the ending speed is 0. How do I compute the starting speed vs? Maybe there's a simpler way to do this in Flash, but I am now interested in the math/physics behind this.

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• How should a multi-threaded C application handle a failed malloc()?

  - by user294463

  A part of an application I'm working on is a simple pthread-based server that communicates over a TCP/IP socket. I am writing it in C because it's going to be running in a memory constrained environment. My question is: what should the program do if one of the threads encounters a malloc() that returns NULL? Possibilities I've come up with so far: No special handling. Let malloc() return NULL and let it be dereferenced so that the whole thing segfaults. Exit immediately on a failed malloc(), by calling abort() or exit(-1). Assume that the environment will clean everything up. Jump out of the main event loop and attempt to pthread_join() all the threads, then shut down. The first option is obviously the easiest, but seems very wrong. The second one also seems wrong since I don't know exactly what will happen. The third option seems tempting except for two issues: first, all of the threads need not be joined back to the main thread under normal circumstances and second, in order to complete the thread execution, most of the remaining threads will have to call malloc() again anyway. What shall I do?

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• free( ) pointers

  - by user1043625

  I'm required to use a special library to keep track of my memory leaks where malloc()= allocate( ) and free( ) = unallocate( ). I'm trying to complete free a linked-list but it seems like the "root" value isn't being freed. typedef struct _node { struct _node *child; char *command; } Command_list; void delete_commands(Command_list **root) { Command_list *temp; while( *root != NULL ){ temp = (*root)->child; //printf("STRING: %s\n", *root->command ); unallocate( *root ); *root = temp; } } The function that's calling it void file_processing( .... ){ Command_list *root = allocate(sizeof (Command_list)); root = NULL; .... delete_commands( &root ); } } I believe that Command_list *root = allocate(sizeof (Command_list)) isn't being properly de-allocated for some reason. Anyone can give me some hints? UPDATE: I found out that instead of Command_list *root = allocate(sizeof (Command_list)); root = NULL; this works: Command_list *root = NULL;

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• jQuery removeClass(), how it works

  - by centro

  I have images on my page. User can add more images onto the page by clicking a button. New images are added asynchronously. Initially, each image on page use a special class to be used when the image is loaded. After the image is loaded, that class is removed. Each image being loaded has the class imageLoading: <img class="imageLoading" scr="someimage.png"> After those images are loaded, I remove that class (simplified code without details): $('img.imageLoading') .each(function(){ $(this) .load(function(){ $(this) .removeClass('imageloading'); });}); Visually, I see that style is removed. But when I run the query again: $('img.imageLoading') I see via debugging that all images, not just loading ones, are returned, i.e. it works like I didn't remove the class for the images that were already loaded. I had a look into the page source, and I saw that actually in HTML the class was not removed, though removeClass() was called. Is that behavior by design that all visual changes are applied but the class attribute is not removed in HTML code? If so, how it can be workarounded in this case. Or, probably, I missed something.

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• wp trim function

  - by Juliver Galleto

  Ok i have this code currently. <?php query_posts('category_name=widgets2'); echo "<div id='widgets-wrapper2'><div id='marginwidgets' style='overflow: auto; max- width: 100%; height: 450px; max-height: 100%; margin: 0 auto;'>"; while (have_posts()) : the_post(); echo "<div class='thewidgets2'>"; echo wp_trim_words( the_content(), $num_words = 0, $more = "..." ); echo '<div style="height: 20px;"></div><a class="button2" href="'.get_permalink().'">Read More</a></div>'; endwhile; echo "</div></div>"; ?> as you can see, it gets all the post from the category name widgets2 and then it should display it. and this line echo wp_trim_words( the_content(), $num_words = 100, $more = "..." ); should trim the words from the_content() to 100 and add a excerpt at the end character but unfortunately it doesnt work, instead it just display the entire contents that looks untrim at all. Hope someone here could figured out. Im open in any suggestions, recommendations and all relevant ideas, thank you.

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• Simple syntax question

  - by stabby

  Hey everyone, First off, sorry for my noob-ness. Believe me when i say ive been rtfm'ing. Im not lazy, im just dumb (apparently). On the bright side, this could earn someone some easy points here. I'm trying to do a match/replace with a pattern that contains special characters, and running into syntax errors in a Flex 3 app. I just want the following regex to compile... (while also replacing html tags with "") value.replace(/</?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)/?>/g, ""); On a side note, the pattern /<.*?/g wouldn't work in cases where there are html entities between tags, like so: <TEXTFORMAT LEADING="2"> <P ALIGN="LEFT"> <FONT FACE="Arial" SIZE="11" COLOR="#4F4A4A" LETTERSPACING="0" KERNING="0"><one</FONT> </P> </TEXTFORMAT><TEXTFORMAT LEADING="2"> <P ALIGN="LEFT"> <FONT FACE="Arial" SIZE="11" COLOR="#4F4A4A" LETTERSPACING="0" KERNING="0">two</FONT> </P> </TEXTFORMAT> The first regex would get both "<one" and "two", but the second would only get "hi" Thanks! Stabby L

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• Why does this sql statement keep saying it is a boolean and not a parameter? (php/Mysql)

  - by ggfan

  In this statement, I am trying to see if there if the latest posting in the database that has the exact same title, price, city, state, detail. If there is, then it would say to the user that the exact post has been already made; if not then insert the posting into the dbc. (This is one type of check so that users can't accidentally post twice. This may not be the best check, but this statement error is annoying me, so I want it to work :)) Why won't this sql work? I think it's not letting the title=$title and not getting the value in the $title... ERROR: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in postad.php on line 365 //there is a form that users fill out that has title, price, city, etc <form> blah blah </form> //if users click submit, then does all the checks and if all okay, insert to dbc if (isset($_POST['submit'])) { // Grab the pposting data from the POST and gets rid of any funny stuff $title = mysqli_real_escape_string($dbc, trim($_POST['title'])); $price = mysqli_real_escape_string($dbc, trim($_POST['price'])); $city = mysqli_real_escape_string($dbc, trim($_POST['city'])); $state = mysqli_real_escape_string($dbc, trim($_POST['state'])); $detail = mysqli_real_escape_string($dbc, trim($_POST['detail'])); if (!is_numeric($price) && !empty($price)) { echo "<p class='error'>The price can only be numbers. No special characters, etc</p>"; } //Error problem...won't let me set title=$title, detail=$detail, etc. //this statement after all the checks so that none of the variables are empty $query="Select * FROM posting WHERE user_id={$_SESSION['user_id']} AND title=$title AND price=$price AND city=$city AND state=$state AND detail=$detail"; $data = mysqli_query($dbc, $query); if(mysqli_num_rows($data)==1) { echo "You already posted this ad. Most likely caused by refreshing too many times."; } }

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• Things to Avoid in C/C++ [closed]

  - by piemesons

  Possible Duplicate: What C++ pitfalls should I avoid ? While searching for some information, I stumbled upon this series of small articles, Things to avoid in C/C++. So, thought of sharing it... "C/C++ programmers are allowed to do some things they shouldn't. We are given functions that are supposed to be useful but aren't because of hidden faults, or taught ways to do things that are bad, wrong, not necessary. These posts will discuss many of these as time goes on." gets(): http://www.gidnetwork.com/b-56.html fflush(stdin): http://www.gidnetwork.com/b-57.html feof(): http://www.gidnetwork.com/b-58.html system("PAUSE"): http://www.gidnetwork.com/b-61.html scanf: http://www.gidnetwork.com/b-59.html scanf / character: http://www.gidnetwork.com/b-60.html scanf / string: http://www.gidnetwork.com/b-62.html scanf / number: http://www.gidnetwork.com/b-63.html scanf / epilogue: http://www.gidnetwork.com/b-64.html void main(): http://www.gidnetwork.com/b-66.html As this is a very useful subject/topic, I request all the members to keep adding valuable information to this thread, and make it a good source of information for all level of programmers, especially for beginners. Thanks...

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• SAS V9.1.3 - Error when combining %INC and CALL EXECUTE

  - by Mark

  Hi, I am getting a resolution error with some SAS v9.1.3 code. Here is some code I want to store in a .txt file (called problem2.txt) and bring into SAS with a %INC %macro email020; %if &email = 1 %then %do; %put THIS RESOLVED AT 1; %end; %else %if &email = 2 %then %do; %put THIS RESOVLED AT 2; %end; %put _user_; %mend email020; %email020; Then this is the main code: filename problem2 'C:\Documents and Settings\Mark\My Documents\problem2.txt'; %macro report1; %let email = 1; %inc problem2; %mend report1; %macro report2 (inc); %let email = 2; %inc problem2; %mend report2; data test; run = 'YES'; run; data _null_; set test; call execute("%report1"); call execute("%report2"); run; The log shows: NOTE: CALL EXECUTE generated line. 1 + %inc problem2; MLOGIC(EMAIL020): Beginning execution. WARNING: Apparent symbolic reference EMAIL not resolved. ERROR: A character operand was found in the %EVAL function or %IF condition where a numeric operand is required. The condition was: &email = 1 ERROR: The macro EMAIL020 will stop executing. MLOGIC(EMAIL020): Ending execution. So the question is why does CALL EXECUTE generate %inc problem2 rather than %report1, causing SAS to miss the assignment and what can I do about it?

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• I am trying to access the individual bytes in a floating point number and I am getting unexpected results

  - by oweinh

  So I have this so far: #include <iostream> #include <string> #include <typeinfo> using namespace std; int main () { float f = 3.45; // just an example fp# char* ptr = (char*)&f; // a character pointer to the first byte of the fp#? cout << int(ptr[0]) << endl; // these lines are just to see if I get what I cout << int(ptr[1]) << endl; // am looking for... I want ints that I can cout << int(ptr[2]) << endl; // otherwise manipulate. cout << int(ptr[3]) << endl; } the result is: -51 -52 92 64 so obviously -51 and -52 are not in the byte range that I would expect for a char... I have taken information from similar questions to arrive at this code and from all discussions, a conversion from char to int is straightforward. So why negative values? I am trying to look at a four-byte number, therefore I would expect 4 integers, each in the range 0-255. I am using Codeblocks 13.12 with gcc 4.8.1 with option -std=C++11 on a Windows 8.1 device.

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• Getting a Script Error Every Time I Click a Link

  - by Flip4Life

  I have everything working perfectly on my site, but for some reason, I get an error message in console whenever I click a link anywhere on my site. The error has to do with this line of coding here: jQuery(function($){ $('.navbar a, .scroll a, .smoothscroll a').bind('click',function(event){ var $anchor = $(this); $('html, body').stop().animate({ scrollTop: $($anchor.attr('href')).offset().top }, 850,'easeInOutExpo'); event.preventDefault(); }); }); And the error I am getting is this: "SCRIPT5007: Unable to get value of the property 'top': object is null or undefined custom.min.js, line 6 character 197" The exact code it is highlighting is this part of the above code: $('html, body').stop().animate({ scrollTop: $($anchor.attr('href')).offset().top }, 850,'easeInOutExpo') All I know is that when I remove the above code, my scroll-to links stop working on pages such as these: http://www.northtownsremodeling.com/things-to-know.php You can see the popup error happen and stay in the console easily by going to a page with a filter like this: http://www.northtownsremodeling.com/bathroom/ And clicking one of the filter buttons. Ultimately, I am trying to make it so my scroll-to setting still works, but not have that error come up anymore. I made this script a long time ago, and I'm really confused as to what could be causing this error when everything is functioning perfectly otherwise? Thanks!

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• .Net file writing and string splitting issues

  - by sagar

  I have a requirement where the file should be split using a given character. Default splitting options are CRLF and LF In both these cases I am splitting the line by \r\n and \r respectively. Also I have requirement where any size of file should be processed. (Processing is basically inserting the given string in a file at given position). For this I am reading the file in chunk of 1024 bytes. Then I am applying the string.Split() method. Split() method gives options for ignoring white spaces and none. I have to add back these line break characters to the line. for this I am using a binary writer and I am writing the byte array to the new file. Issue:- 1) When line break is CRLF, and the split option is NONE, while spaces are also added in the splitted array. Second option is given (to ignore white spaces) CRLF works properly. 2)Bit ignoring white space option creates other problems, as I am reading the file byte by byte I can't ignore a white space. 3)When line break characters are other than default(e.g. '|', a null value is prepended to the resulting line. Can anybody give solution to my issues?

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• isalpha(<mychar>) == true evaluates to false??

  - by Buttink

  string temp is equal to "ZERO:\t.WORD\t1" from my debugger. (the first line of my file) string temp = RemoveWhiteSpace(data); int i = 0; if ( temp.length() > 0 && isalpha(temp[0]) ) cout << "without true worked" << endl; if ( temp.length() > 0 && isalpha(temp[0]) == true ) cout << "with true worked" << endl; This is my code to check if first character of temp is a a-z,A-Z. The first if statement will evaluate to true and the 2nd to false. WHY?!?!?! I have tried this even without the "temp.length() 0 &&" and it still evaluates false. It just hates the "== true". The only thing I can think of is that isalpha() returns != 0 and true == 1. Then, you could get isalpha() == 2 != 1. But, I have no idea if C++ is that ... weird. BTW, I dont need to know that the "== true" is logically pointless. I know. output was without true worked Compiled with CodeBlock using GNU GCC on Ubuntu 9.10 (if this matters any)

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• How to move image in Applet?

  - by user1609804

  I want to move the character left, right up, and down in applet, but it is not moving at all. here is my code, help please import javax.swing.JPanel; import java.awt.image.BufferedImage; import java.io.*; import javax.imageio.ImageIO; import java.applet.*; import java.awt.event.*; import java.awt.*; public class drawCenter extends Applet { private int x,y;// the x and y of the position of the player private BufferedImage image, pos; public void init( ) { try { image = ImageIO.read(new File("pokemonCenter.png")); pos = ImageIO.read(new File("player/maleInGame.png")); } catch (IOException ex) { } x = 150; y = 171; } public void keyPressed(KeyEvent e) { int keyCode = e.getKeyCode(); switch( keyCode ) { case KeyEvent.VK_UP: if( y>0 ) { y=y-19; repaint(); } break; case KeyEvent.VK_DOWN: if( y<171 ) { y=y+19; repaint(); } break; case KeyEvent.VK_LEFT:if( x>0 ) { x=x-15; repaint(); } break; case KeyEvent.VK_RIGHT:if( x<285 ) { x=x+15; repaint(); } break; } e.consume(); } public void keyReleased(){ } public void paint( Graphics g ) { g.drawImage(image, 0, 0, null); g.drawImage(pos, x, y, null); } }

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• Disable a control inside a gridview

  - by saeed talaee

  Hi i want to disable link-bottoms control in a grid view with the condition of a special value . for example if the count for a row become 0 ,the link bottom for that row should be invisible . what should i do? where should i write the code? here is cod that i write in row command grid view but it works only of i push the link bottom!! but i want to apply this cod to my page before loading. please guide me int idx = Convert.ToInt32(e.CommandArgument); idx = idx - (GridView1.PageSize * GridView1.PageIndex); int ID = (int)GridView1.DataKeys[idx].Value; string connStr = ConfigurationManager.ConnectionStrings["dbconn"].ConnectionString; SqlConnection sqlconn = new SqlConnection(connStr); SqlCommand sqlcmd = new SqlCommand(); sqlcmd = new SqlCommand("SELECT count(ID) FROM ReviwerArticle where ArticleID=@ArticleID", sqlconn); sqlcmd.Parameters.AddWithValue("@ArticleID", ID); sqlconn.Open(); int count = ((int)sqlcmd.ExecuteScalar()); sqlconn.Close(); if (count == 0) { ((LinkButton)GridView1.Rows[idx].Cells[0].FindControl("LinkButton4") as LinkButton).Visible = false; }

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• (again) i improve my question [closed]

  - by gcc

  Possible Duplicate: realizing number …how?? i hold input like that A is char pointer A[0]=n A[1]=j A[2]=n // i take (one number)+special char(s)+command(s) (like $ or #) from user A[3]=d // the input order can be changed like char(s)+number+command . // there is one number in A[] . // and every A[i] is important for me because what will i do in next step . // is determined by that input in A[h] or A[n] . // example . // when you see $ go before array do something . // when you see number go farad equation and use it in there A[j]=$ // (number can be pozitif or negatif . A[i]=14(any number) . . int func(int temp) { if(temp=='n') //..do something then return 10; if(temp=='j') return 11; if(temp=='d') return 12; if(/*........*/) // when temp find/realize number ,i wanna return 13; // in if statement, (instead of .....) what code should i write } how i can do } NOTE::please ,dont close my question ,when you close icannot edit it

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• Why does Java automatically decode %2F in URI encoded filenames?

  - by Lucas

  I have a java servlet that needs to write out files that have a user-configurable name. I am trying to use URI encoding to properly escape special characters, but the JRE appears to automatically convert encoded forward slashes (%2F) into path separators. Example: File dir = new File("C:\Documents and Setting\username\temp"); String fn = "Top 1/2.pdf"; URI uri = new URI( dir.toURI().toASCIIString() + URLEncoder.encoder( fn, "UTF-8" ).toString() ); File out = new File( uri ); System.out.println( dir.toURI().toASCIIString() ); System.out.println( URLEncoder.encoder( fn, "UTF-8" ).toString() ); System.out.println( uri.toASCIIString() ); System.out.println( output.toURI().toASCIIString() ); The output is: file:/C:/Documents%20and%20Settings/username/temp/ Top+1%2F2.pdf file:/C:/Documents%20and%20Settings/username/temp/Top+1%2F2.pdf file:/C:/Documents%20and%20Settings/username/temp/Top+1/2.pdf After the new File object is instantiated, the %2F sequence is automatically converted to a forward slash and I end up with an incorrect path. Does anybody know the proper way to approach this issue? The core of the problem seems to be that uri.equals( new File(uri).toURI() ) == FALSE when there is a '%2F' in the URI. I'm planning to just use the URLEncoded string verbatim rather than trying to use the File(uri) constructor.

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• Ideal backup appliance for backup software like Bacula?

  - by Ricket

  I'm at a small company and we (the IT department of two) manage <100 client computers and a handful of servers. Currently we're using a company's appliance to handle backup; it does a small backup every night and a full backup every weekend, and a guy comes on Wednesday to take an offsite backup drive (and gives back last week's drive to swap with it). The backup is done only on the servers' hard drives, because our client computers and employees make sure not to store anything worthwhile on their own computers. So it's a pretty simple situation. Lately this system, mainly the appliance, has been having problems, so we are looking for an alternative. I'm researching other companies but also looking into what we might expect from trying to do this ourselves. There will undoubtedly be a large learning curve, but hey, that's what serverfault is for, right? :) So anyway I was looking at Bacula. Feature list sounds great, documentation is plentiful, but it's only software. So my question is, what is the ideal backup server to run the Bacula server software on? And not only the server but other related appliances. Our current backup appliance uses only hard drives, not tape drives. It has several plugged into it at one time, in hotswap bays on the front of the machine. I couldn't help but notice though, it's hardly more than Windows XP with hard drive bays, a PCI eSATA card (which connects to another appliance extension piece with 2 more bays), and their software. Since the company will take back their appliance if/when we cancel with them, where can I go to configure a server with these kinds of things? And should I consider switching to tape drives? What other concerns should I be thinking about when I pick out hardware for a backup server? Maybe I'm being naive, I'm sure Dell (and any other computer company) sells them in the small business section of their website, but I wanted to make sure that there's not some other more recommended place that other companies are getting their hardware from, and that I don't need anything special for Bacula.

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• VMware Player loses internet connectivity

  - by Martha

  Periodically, the internet simply stops working in my virtual machine, and the only way I can get it working again is to restart the host computer. Since I use the virtual machine specifically for testing web pages, this is, shall we say, a bother. Details: I have Windows XP Pro running in VMware Player (v. 3.0.0 build-203739) on a Windows 7 host. It's set to NAT (shared IP address) because the firewall won't allow a bridged connection. Every couple of days or so, first the internet slows down to a crawl, then eventually it stops working altogether. Both VMWare and the virtual OS report that they are connected, everything looks just peachy, I can reach the internet from the host, but on the VM, all web pages time out and/or report that the server could not be found. (Browser-independent; tried with IE, FF, Chrome, Safari, and Opera.) When this happens, the only way I've found to restore the internet connectivity is to restart the host machine. Restarting the VM doesn't help, nor does refreshing network connections on either the host or the guest. (Although I'm not entirely sure I've found the proper way to refresh a network connection in Windows 7...) I have not noticed any predictability about when the problem occurs, i.e. it's not immediately after I do anything special. It seems to occur mostly after putting the host to sleep once or twice, but it has happened even if the host has been in continuous use. It also seems independent of when I start using the VM - sometimes, I wake up the VM and the internet is really slow in it, then eventually stops working altogether; other times, I wake up the VM, use it perfectly happily for a while, then suddenly the internet is gone. Does anyone know why this is occurring? Failing that, is there a workaround that's less drastic than restarting the host? (Windows 7 startup times are blazingly fast compared to previous versions of Windows, but it's still a hassle to close all my programs and reopen them again.) Edit: while badges overall are nice, the Tumbleweed badge isn't helping me to solve my problem. Hasn't anyone encountered anything even remotely similar?

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• free open-source linux screenshot & ocr tool

  - by Gryllida

  I'm looking for a tool which would be able to capture a screen region, pass it to OCR and put the result into clipboard. "import ppm:- | gocr -i - | xclip -selection c" works, but gocr is unreliable: simple text on a webpage has errors. It is a clear font but the OCR tool always misses "r" and replaces it with underscore. "import ppm:- | ocrad -i - | xclip -selection c" says "ocrad: maxval 255 in ppm "P6" file." tesseract needs an image file and does not accept piping input to it. xfce4-screenshooter does not do OCR. ABBYY Screenshot Reader is proprietary. tessnet2 is freeware running on a proprietary platform. Google Docs can OCR screenshots in a batch. But my data is confidential and better not put online. Graphical interface solutions would be acceptable for this question, too. There is a number of existing SuperUser questions about OCR. They fall in several categories. Questions just about OCR without the "screenshot taking" part. Open Source OCR for linux Free OCR for Arabic text Looking for recommendations on OCR problem - tabular numeric data Which has better OCR applications: Ubuntu, or Mac/iPad, or Windows? How can I preform OCR from the command line? OCR solution on linux machine from command line (duplicate) Free OCR software OCR for Sanskrit ( OR devanagari) Copy image and paste to OCR (windows) File processing OCR instead of screenshot. Online OCR website for processing an entire pdf file at one time? Practical OCR solution for converting a large book to a digital format? How to extract text with OCR from a PDF on Linux? Batch-OCR many PDFs OCR Image based PDF Copy image and paste to OCR Extract OCR text from Evernote OCR in Word 2013 Replace (OCR) garbled text in PDF? Process files prior to running OCR. How can I make OCR recognize my documents' text better? Tesseract OCR recognition bilingual document. mistakes tolerance level setup OCR for low quality images How do I get the best quality screenshot for OCR (Optical Character Recognition) and what tool would be the best for screenshots? OCR training. Training Tesseract-OCR for english language fonts None of them answer this question.

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• dovecot imap ssl certificate issues

  - by mulllhausen

  i have been trying to configure my dovecot imap server (version 1.0.10 - upgrading is not an option at this stage) with a new ssl certificate on ubuntu like so: $ grep ^ssl /etc/dovecot/dovecot.conf ssl_disable = no ssl_cert_file = /etc/ssl/certs/mydomain.com.crt.20120904 ssl_key_file = /etc/ssl/private/mydomain.com.key.20120904 $ /etc/init.t/dovecot stop $ sudo dovecot -p $ [i enter the ssl password here] it doesn't show any errors and when i run ps aux | grep dovecot i get root 21368 0.0 0.0 12452 688 ? Ss 15:19 0:00 dovecot -p root 21369 0.0 0.0 71772 2940 ? S 15:19 0:00 dovecot-auth dovecot 21370 0.0 0.0 14140 1904 ? S 15:19 0:00 pop3-login dovecot 21371 0.0 0.0 14140 1900 ? S 15:19 0:00 pop3-login dovecot 21372 0.0 0.0 14140 1904 ? S 15:19 0:00 pop3-login dovecot 21381 0.0 0.0 14280 2140 ? S 15:19 0:00 imap-login dovecot 21497 0.0 0.0 14280 2116 ? S 15:29 0:00 imap-login dovecot 21791 0.0 0.0 14148 1908 ? S 15:48 0:00 imap-login dovecot 21835 0.0 0.0 14148 1908 ? S 15:53 0:00 imap-login dovecot 21931 0.0 0.0 14148 1904 ? S 16:00 0:00 imap-login me 21953 0.0 0.0 5168 944 pts/0 S+ 16:02 0:00 grep --color=auto dovecot which looks like it is all running fine. so then i test to see if i can telnet to the dovecot server, and this works fine: $ telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK Dovecot ready. but when i test whether dovecot has configured the ssl certificates properly, it appears to fail: $ sudo openssl s_client -connect localhost:143 -starttls imap CONNECTED(00000003) depth=0 /description=xxxxxxxxxxxxxxxxx/C=AU/ST=xxxxxxxx/L=xxxx/O=xxxxxx/CN=*.mydomain.com/[email protected] verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 /description=xxxxxxxxxxx/C=AU/ST=xxxxxx/L=xxxx/O=xxxx/CN=*.mydomain.com/[email protected] verify error:num=27:certificate not trusted verify return:1 depth=0 /description=xxxxxxxx/C=AU/ST=xxxxxxxxxx/L=xxxx/O=xxxxx/CN=*.mydomain.com/[email protected] verify error:num=21:unable to verify the first certificate verify return:1 --- Certificate chain 0 s:/description=xxxxxxxxxxxx/C=AU/ST=xxxxxxxxxx/L=xxxxxxxx/O=xxxxxxx/CN=*.mydomain.com/[email protected] i:/C=IL/O=StartCom Ltd./OU=Secure Digital Certificate Signing/CN=StartCom Class 2 Primary Intermediate Server CA --- Server certificate -----BEGIN CERTIFICATE----- xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx . . . xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx== -----END CERTIFICATE----- subject=/description=xxxxxxxxxx/C=AU/ST=xxxxxxxxx/L=xxxxxxx/O=xxxxxx/CN=*.mydomain.com/[email protected] issuer=/C=IL/O=StartCom Ltd./OU=Secure Digital Certificate Signing/CN=StartCom Class 2 Primary Intermediate Server CA --- No client certificate CA names sent --- SSL handshake has read 2831 bytes and written 342 bytes --- New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA Server public key is 2048 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : TLSv1 Cipher : DHE-RSA-AES256-SHA Session-ID: xxxxxxxxxxxxxxxxxxxx Session-ID-ctx: Master-Key: xxxxxxxxxxxxxxxxxx Key-Arg : None Start Time: 1351661960 Timeout : 300 (sec) Verify return code: 21 (unable to verify the first certificate) --- . OK Capability completed. at least, i'm assuming this is a failure???

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