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• How to force Word to recompute image numbers?

  - by Vojtech Ruzicka

  I have a word document containing images and tables. These have captions which are numbered, like "Image 1-Example of something". Later on I decided to rearrange some of chapters of my document. However numbering of objects remained the same, so the first image is image 8, the second is image 3, etc. I want to force Word to recompute image numbering so first image in document would be image 1, the second - image 2, etc. Is that possible? Will references (added through cross reference feature) to those objects be updated?

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• Is it possible to run JavaScript and also edit image maps using Design View in Dreamweaver?

  - by Mike Eng

  I'm using Dreamweaver CS5.5 for an HTML prototype that is built with image-mapped screenshots. I am using JavaScript to dynamically include the appropriate main image, and the navigation is done with image maps. Is it possible to have the Dreamweaver "Design View" run JavaScript initially (which will set the main image) and also allow me to edit the image maps in place (so I can see them placed over the correct main image)? I found some references to the "Live View" feature, which runs JavaScript successfully, but I cannot see or edit image maps in "Live View".

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• Dividing with Gnu's bc

  - by Boldewyn

  I'm just starting with Gnu's bc and I'm stuck at the very beginning (very discouraging...). I want to divide two numbers and get a float as result: $bc bc 1.06.94 Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 15/12 1 15.0/12.0 1 15.000000/12.000000 1 scale(15.00000) 5 The man page says, that division returns a number with the same scale as the initial values. Obviously this is either not true or I'm missing something. Googling hasn't brought up any new insights (besides that 'BC' can also stand for 'British Columbia'). Do you see my error? Better yet, do you know any good references/tutorials to bc?

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• Starting an STA thread, but with parameters to the final function

  - by DRapp

  I'm a bit weak on how some delegates behave, such as passing a method as the parameter to be invoked. While trying to do some NUnit test scripts, I have something that I need to run many test with. Each of these tests requires a GUI created and thus the need for an STA thread. So, I have something like public class MyTest { // the Delegate "ThreadStart" is part of the System.Threading namespace and is defined as // public delegate void ThreadStart(); protected void Start_STA_Thread(ThreadStart whichMethod) { Thread thread = new Thread(whichMethod); thread.SetApartmentState(ApartmentState.STA); //Set the thread to STA thread.Start(); thread.Join(); } [Test] public void Test101() { // Since the thread issues an INVOKE of a method, I'm having it call the // corresponding "FromSTAThread" method, such as Start_STA_Thread( Test101FromSTAThread ); } protected void Test101FromSTAThread() { MySTA_RequiredClass oTmp = new MySTA_RequiredClass(); Assert.IsTrue( oTmp.DoSomething() ); } } This part all works fine... Now the next step. I now have a different set of tests that ALSO require an STA thread. However, each "thing" I need to do requires two parameters... both strings (for this case). How do I go about declaring proper delegate so I can pass in the method I need to invoke, AND the two string parameters in one shot... I may have 20+ tests to run with in this pattern and may have future of other similar tests with different parameter counts and types of parameters too. Thanks.

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• Circumvent c++ null-terminated string frustration

  - by ypnos

  I'm using boost::program_options and it suffers from the same as many other c++ libs, even std itself: It still uses C-style null-terminated strings, because nobody really likes the weak std::string. The method in question is: options_description_easy_init& operator()(const char* name, const value_semantic* s, const char* description); The typical use case is just fine: options.add_options() ("graphical", bool_switch(&isGraphical)->default_value(false), "Show any graphical output during runtime") However, I need the name of the option to be set dynamically. The reason is that in some cases I nead a custom prefix, which is added to the string by my function std::string key(const std::string& k): options.add_options() (key("graphical"), bool_switch(&isGraphical)->default_value(false), "Show any graphical output during runtime") This fails. I could now use c_str() on the std::string but that's evil -- I don't know how long program_options keeps the variable around and if my string is still alive when needed. I could also reserve memory in a buffer etc. and hand in that. The buffer is never freed and it sucks/is evil. Is there anything else I can do to circumvent the C-style string mess in this situation?

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• How to select chosen columns from two different entities into one DTO using NHibernate?

  - by Pawel Krakowiak

  I have two classes (just recreating the problem): public class User { public virtual int Id { get; set; } public virtual string FirstName { get; set; } public virtual string LastName { get; set; } public virtual IList<OrgUnitMembership> OrgUnitMemberships { get; set; } } public class OrgUnitMembership { public virtual int UserId { get; set; } public virtual int OrgUnitId { get; set; } public virtual DateTime JoinDate { get; set; } public virtual DateTime LeaveDate { get; set; } } There's a Fluent NHibernate map for both, of course: public class UserMapping : ClassMap<User> { public UserMapping() { Table("Users"); Id(e => e.Id).GeneratedBy.Identity(); Map(e => e.FirstName); Map(e => e.LastName); HasMany(x => x.OrgUnitMemberships) .KeyColumn(TypeReflector<OrgUnitMembership> .GetPropertyName(p => p.UserId))).ReadOnly().Inverse(); } } public class OrgUnitMembershipMapping : ClassMap<OrgUnitMembership> { public OrgUnitMembershipMapping() { Table("OrgUnitMembership"); CompositeId() .KeyProperty(x=>x.UserId) .KeyProperty(x=>x.OrgUnitId); Map(x => x.JoinDate); Map(x => x.LeaveDate); References(oum => oum.OrgUnit) .Column(TypeReflector<OrgUnitMembership> .GetPropertyName(oum => oum.OrgUnitId)).ReadOnly(); References(oum => oum.User) .Column(TypeReflector<OrgUnitMembership> .GetPropertyName(oum => oum.UserId)).ReadOnly(); } } What I want to do is to retrieve some users based on criteria, but I would like to combine all columns from the Users table with some columns from the OrgUnitMemberships table, analogous to a SQL query: select u.*, m.JoinDate, m.LeaveDate from Users u inner join OrgUnitMemberships m on u.Id = m.UserId where m.OrgUnitId = :ouid I am totally lost, I tried many different options. Using a plain SQL query almost works, but because there are some nullable enums in the User class AliasToBean fails to transform, otherwise wrapping a SQL query would work like this: return Session .CreateSQLQuery(sql) .SetParameter("ouid", orgUnitId) .SetResultTransformer(Transformers.AliasToBean<UserDTO>()) .List<UserDTO>() I tried the code below as a test (a few different variants), but I'm not sure what I'm doing. It works partially, I get instances of UserDTO back, the properties coming from OrgUnitMembership (dates) are filled, but all properties from User are null: User user = null; OrgUnitMembership membership = null; UserDTO dto = null; var users = Session.QueryOver(() => user) .SelectList(list => list .Select(() => user.Id) .Select(() => user.FirstName) .Select(() => user.LastName)) .JoinAlias(u => u.OrgUnitMemberships, () => membership) //.JoinQueryOver<OrgUnitMembership>(u => u.OrgUnitMemberships) .SelectList(list => list .Select(() => membership.JoinDate).WithAlias(() => dto.JoinDate) .Select(() => membership.LeaveDate).WithAlias(() => dto.LeaveDate)) .TransformUsing(Transformers.AliasToBean<UserDTO>()) .List<UserDTO>();

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• Ping IP: connect: no such process

  - by Matthew

  I am trying to figure out this issue and am getting a weird error. We have two boxes which used to talk to one another on the network. Both are reachable via ssh from a separate network, which means they are able to talk to their default gateways just fine. When we try to ping from the linux machine to the linux machine, we get a bunch of timeouts. When we try to ping from the linux box back, we are getting connect: no such process. I can't seem to find much documentation on this error, though there consistently seem to be references to VPN stuff when googling for this error. The

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• Query Performance Degrades with High Number of Logical Reads

  - by electricsk8

  I'm using Confio Ignite8 to derive this information, and monitor waits. I have one query that runs frequently, and I notice that on some days there is an extremely high number of logical reads incurred, +300,000,000 for 91,000 executions. On a good day, the logical reads are much lower, 18,000,000 for 94,000 executions. The execution plan for the query utilizes clustered index seeks, and is below. StmtText |--Nested Loops(Inner Join, OUTER REFERENCES:([f].[ParentId])) |--Clustered Index Seek(OBJECT:([StructuredFN].[dbo].[Folder].[PK_Folders] AS [f]), SEEK:([f].[FolderId]=(8125)), WHERE:([StructuredFN].[dbo].[Folder].[DealId] as [f].[DealId]=(300)) ORDERED FORWARD) |--Clustered Index Seek(OBJECT:([StructuredFN].[dbo].[Folder].[PK_Folders] AS [p]), SEEK:([p].[FolderId]=[StructuredFN].[dbo].[Folder].[ParentId] as [f].[ParentId]), WHERE:([StructuredFN].[dbo].[Folder].[DealId] as [p].[DealId]=(300)) ORDERED FORWARD) Output from showstatistics io ... Table 'Folder'. Scan count 0, logical reads 4, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Any ideas on how to troubleshoot where these high logical reads come from on certain days, and others nothing?

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• why need select privileges on *.* to use view?

  - by profy

  I have a problem using view with MySQL server 5.0 (5.0.92) I cannot use view with a user granted like that : GRANT USAGE ON *.* TO 'testuser'@'' IDENTIFIED BY PASSWORD '**********'; GRANT ALL PRIVILEGES ON `testuser`.* TO 'testuser'@''; I can create view, but when I try to select in, I have this messages : ERROR 1356 (HY000): View 'testuser.v' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them I need to "GRANT SELECT ON . TO 'testuser'@''" to make select working on the view. Why ? Do you know a solution to use VIEW's without the select privileges on . ? Thanks a lots for your answers.

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• How to push further as a programmer?

  - by MaXX

  For the last, hmm, 6 months I've been reading into Programming in C, I got myself K&Rv2, BEEJ's socket guide, Expert C programming, Linux Systems Programming, the ISO/IEC 9899:1999 specification (real, and not draft). After receiving them from Amazon, I got Linux installed, and got to it. I'm done with K&R, about halfway through Expert C Programming, but still feel weak as a programmer, I'm sure it takes much more than 6 months of reading to become truly skilled, but my question is this: I've done all the exercises in K&Rv2 (in chapter 1) and some in other chapters, most of which are generally really boring. How do I lift my skills, and become truly great? I've invested money, time and a general lifestyle for something I truly desire, but I'm not sure how exactly to achieve it. Could someone explain to me, perhaps if I need to continuously code, what exactly I'm to code? I'm pretty sure, coding up hello world programs isn't going to teach me any more than I already know about anything. A friend of mine said "read" (with emphasis on read) a man page a day, but reading is all I do, I want to do, but I'm not sure what! I'm interested in security, but I'm not sure as a novice what to code that would be considered enough. Ah, I hope you don't delete this paste :) Thanks

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• Moving from windows to linux : Understanding - X Window System, X Server, Xorg, Xfree86.

  - by claws

  Hello, I'm a windows developer(Win32api) moving from Windows to Linux. While installing linux there are lot of things to know about X11, X Window System, X Server, Xorg, Xfree86 and what not. How come we aren't aware of such things in windows? Wiki article on these scares me. Can any one explain these things? How they work? Why is it so complicated in linux & not in windows? Any good references are also appreciated. PS: I love to know internals, don't hesitate to go into depth.

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• Parallels: How to see a Mac-hosted website from Windows?

  - by Jim Miller

  I'm traveling at the moment, and have moved one of the websites I'm working on to my MBP so I can work on it without a network connection. I've made an addition to the Mac's /etc/hosts file pointing the domain name to 127.0.0.1, and all's well. I now want to get into Parallels and check the site from Windows browsers. How do I get things so that the Windows browser will understand the domain name and access the site? The Windows image obviously doesn't recognize / can't find the Mac's /etc/hosts file, and references to 127.0.0.1 in the Windows hosts file just as obviously point to Windows, not the Mac. Any advice out there? Thanks!

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• using modrewrite to change http to https? (not redirect)

  - by PaulHanak

  This might sound a little crazy, but bare with me. I basically have an include file, lets say inc-navigation.html, that has absolute paths (http://www.pathtoimage.com/image.com) that are on EVERY PAGE. Well, using SSL, I can't use that same include file because it is not referencing https:// What a pain! SO, I was maybe thinking of using htaccess to do a url rewrite of all references of HTTP to HTTPS when the browser requests a https page. Again, just to be clear, I don't want to "redirect", just "replace". So, I have this.... RewriteCond %{HTTPS} !=on RewriteRule ^http$ https but it doesn't seem to be working. I probably have the syntax wrong though. :) Of course, this is even if this type of thing is even possible!?

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• Apache routing vhosts to /var/www

  - by FHannes

  One user at my site has reported that he reaches the content at /var/www when browsing to any of the vhosts at my server. As far as I’m aware, my Apache server does not contain a document root that references this folder. On top of that, this user seems to be the only one experiencing the issue. According to his ISP, the issue isn’t caused by them, yet, on his mobile connection, he can access the site. When browsing to my server’s IP, he also receives the correct content from the default vhost. What could be the possible causes of this issue and how can I get it to stop? I’ve explored pretty much every option I could think of.

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• When is it safe to use a broken hash function?

  - by The Rook

  It is trivial to use a secure hash function like SHA256 and continuing to use md5 is reckless behavior. However, there are some complexities to hash function vulnerabilities that I would like to better understand. Collisions have been generated for md4 and md5. According to NIST md5() is not a secure hash function. It only takes 2^39th operations to generate a collision and should never be used for passwords. However SHA1 is vulnerable to a similar collision attack in which a collision can be found in 2^69 operations, where as brute force is 2^80th. No one has generated a sha1 collision and NIST still lists sha1 as a secure message digest function. So when is it safe to use a broken hash function? Even though a function is broken it can still be "big enough". According to Schneier a hash function vulnerable to a collsion attack can still be used as an HMAC. I believe this is because the security of an HMAC is Dependant on its secret key and a collision cannot be found until this key is obtained. Once you have the key used in a HMAC its already broken, so its a moot point. What hash function vulnerabilities would undermine the security of an HMAC? Lets take this property a bit further. Does it then become safe to use a very weak message digest like md4 for passwords if a salt is perpended to the password? Keep in mind the md4 and md5 attacks are prefixing attacks, and if a salt is perpended then an attacker cannot control the prefix of the message. If the salt is truly a secret, and isn't known to the attacker, then does it matter if its a appended to the end of the password? Is it safe to assume that an attacker cannot generate a collision until the entire message has been obtained? Do you know of other cases where a broken hash function can be used in a security context without introducing a vulnerability? (Please post supporting evidence because it is awesome!)

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• How come the Actionscript 3 ENTER_FRAME event is crazy nuts?

  - by nstory

  So, I've been toying around with Flash, browsing through the documentation, and all that, and noticed that the ENTER_FRAME event seems to defy my expectation of a deterministic universe. Take the following example: (new MovieClip()).addEventListener(Event.ENTER_FRAME, function(ev) {trace("Test");}); Notice this anonymous MovieClip is not added to the display hierarchy, and any reference to it is immediately lost. It will actually print "Test" once a frame until it is garbage collected. How insane is that? The behavior of this is actually determined by when the garbage collector feels like coming around in all its unpredictable insanity! Is there a better way to create intermittent failures? Seriously. My two theories are that either the DisplayObject class stores weak references to all its instances for the purpose of dispatching ENTER_FRAME events, or, and much wilder, the Flash player actually scans the heap each frame looking for ENTER_FRAME listeners to pull on. Can any hardened Actionscript developer clue me in on how this works? (And maybe a why - the - f**k they thought this was a good idea?)

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• Disable CTRL + ALT + [LETTER] to produce accented variations

  - by Barney

  After an unknown config change, CTRL + ALT + [LETTER] has started producing common accented versions of [LETTER]. I'm not a big fan of this arrangement, seeing as I've memorized all my favourite ALT + [NUMPAD SEQUENCE] references and was used to using CTRL + ALT + [LETTER] for various other application-specific commands in my text editor. The prominent result from my searching suggests that this has something to do with a switch to an 'international keyboard', and says this can be removed in the control panel or toggled by hitting ALT + SHIFT, but I can't get my system to confirm this, and the solutions (or close approximations thereof) don't work. Specifically, I've been to Control Panel\Clock, Language, and Region\Language\Advanced settings and switched the override for default input method from 'language list' to English and I've been to Control Panel\Clock, Language, and Region\Language\Language options and made sure that I only have my one input method (UK). Other than that I'm not quite sure where to look. Any ideas?

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• Disqus cache of unposted posts

  - by user129107

  Some webpages implement Disqus and also have the rather bad policy of adding auto refresh to the page. This result in for example one writing a long answer in a debate and then a refresh comes along – and everything is gone. Is the comments, written, but not posted, cached somewhere? Is it possible to retrieve? I have experienced this on various pages. In the current case the debate page was reloaded and a rather lengthy post with a lot of references and long thought out sentences vanished. This page closes the debate during night time, and do a auto refresh of the page when one pass midnight – as such I'm not able to retrieve the debate for another 8 hours. Other pages implement for example an auto refresh after 20 minutes. Linux, Google Chrome.

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• 64-bit Hardware Virtualization on VirtualBox

  - by Cat

  I am trying to set up a SQL Server practice lab using VirtualBox and a trial copy of Windows Server 2K8 R2 in ISO format. I received an error message that states my processor does not support 64-bit hardware virtualization. Although I "Enabled" Intel ardware virtualization in the BIOS that still doesn't work. According to the Intel website, the processor does support VT-x, however the accelerated tab in VirtualBox is greyed out and no references to VT-x are mentioned in the settings options available to me. Any ideas on how I can get around this? I checked around ServerFault and couldn't find anything but if I missed an applicable post a link is great too. Specs below - if additional information is needed please comment and I will provide. Thanks in advance. VirtualBox version - 4.1.18 Hardware - Lenovo B570 1068-A3U i3-2310M

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• ssh asks for password despite ssh-copy-id

  - by Aliud Alius

  I've been using public key authentication on a remote server for some time now for remote shell use as well as for sshfs mounts. After forcing a umount of my sshfs directory, I noticed that ssh began to prompt me for a password. I tried purging the remote .ssh/authorized_keys from any mention the local machine, and I cleaned the local machine from references to the remote machine. I then repeated my ssh-copy-id, it prompted me for a password, and returned normally. But lo and behold, when I ssh to the remote server I am still prompted for a password. I'm a little confused as to what the issue could be, any suggestions?

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• ionice idle is ignored

  - by Ferran Basora

  I have been testing the ionice command for a while and the idle (3) mode seems to be ignored in most cases. My test is to run both command at the same time: du <big folder> ionice -c 3 du <another big folder> If I check both process in iotop I see no difference in the percentage of io utilization for each process. To provide more information about the CFQ scheduler I'm using a 3.5.0 linux kernel. I started doing this test because I'm experimenting a system lag each time a daily cron job updatedb.mlocate is executed in my Ubuntu 12.10 machine. If you check the /etc/cron.daily/mlocate file you realize that the command is executed like: /usr/bin/ionice -c3 /usr/bin/updatedb.mlocate Also, the funny thing is that whenever my system for some reason starts using swap memory, the updatedb.mlocate io process is been scheduled faster than kswapd0 process, and then my system gets stuck. Some suggestion? References: http://ubuntuforums.org/showthread.php?t=1243951&page=2 https://bugs.launchpad.net/ubuntu/+source/findutils/+bug/332790

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• Sysprep.exe completely missing on both of my Windows 7 64bit machines. How should I find a workaround?

  - by Zoltán Tamási

  The sysprep.exe file is simply missing on my Windows 7 64bit machine. I tried to find it on another computer, but it wasn't found there either. I can't understand it, because on a lot of forums and even in the official articles there are a lot of references to this tool. I've checked system, system32, sysWOW64 folders, and even made a full search with Total Commander. I only found a sysprep folder in the system32 folder, but inside was only an en-US subfolder, which was empty. Then I thought I will give my Windows PE bootdisk a try, which I've created a while ago. No result, only the same empty en-US folder is present there as well. Please if anyone knows what's happening, point me to the right direction. I need to clone my system and I'm stuck right at the first step...

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• What is your approach to draw a representation of your network ?

  - by Kartoch

  Hello, I'm looking to the community to see how people are drawing their networks, i.e. using symbols to represent complex topology. You can have hardware approach, where every hardware unit are represented. You can also have "entity" approach, where each "service" is shown. Both are interesting but it is difficult to have both on the same schema (but this is needed, especially using virtualization environment). Furthermore, it is difficult to have complex informations on such representation. For instance security parameters (encrypted link, need for authentication) or specific details (protocol type, ports, encapsulation). So my question is: where your are drawing a representation of your network, what is your approach ? Are you using methodology and/or specific softwares ? What is your recommendations for information to put (or not) ? How to deal with the complexity when the network becomes large and/or you want to put a lot of information on it ? Examples and links to good references will be appreciated.

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• Excel, Lookup special characters and spaces.

  - by Sisyphus

  I have an excel, spreadsheet that has multiple sheets. The first sheet is an index of files, I am using the following forumla to look up a value in column A, references against the index sheet, if it matches then it copies the value from column B from the index sheet. The forumla is: =IF($A3="", "", (LOOKUP($A3, INDEX!$A$3:$A$26, INEDEX!B$3:B$26))) It works for data that has no spaces and special characters, anybody have any ideas why it doesn't work and how I can make it work? Thanks in advance.

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• Hardware changes to require XP Activation ? (for a Virtual Machine)

  - by NVRAM

  I have WXP-64 running on a VM and, for testing and performance reasons, I would like to occasionally change the allocations for it. Changes might include: Number of CPU cores, Amount of RAM Add/remove network adapters. But I'm concerned that XP will demand re-activation and that I might eventually have licensing issues if I do this. So, can anyone tell me: What kind of changes trigger re-activation in XP? Is there limits or caveat with regard to re-activation? I've perused this question and the article it references, but wanted more recent and verified info. (FWIW, I'm not trying to cheat: the OS copy was purchased explicitly for the VM.)

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