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  • Issues while installing no machine setup (NX )

    - by TopCoder
    I am trying to connect to NX server from windows client but it reports following exception NX 203 NXSSH running with pid: 5404 NX 285 Enabling check on switch command NX 285 Enabling skip of SSH config files NX 285 Setting the preferred NX options NX 200 Connected to address: 10.43.51.77 on port: 22 NX 202 Authenticating user: nx NX 208 Using auth method: publickey NX 204 Authentication failed. I have regenearted the default_dsa.key on server and imported the same for client but still not working. Any solutions?

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  • fork() within a fork()

    - by codingfreak
    Hi Is there any way to differentiate the child processes created by different fork() functions within a program. global variable i; SIGCHLD handler function() { i--; } handle() { fork() --> FORK2 } main() { while(1) { if(i<5) { i++; if( (fpid=fork())==0) --> FORK1 handle() else (fpid>0) ..... } } } Is there any way I can differentiate between child processes created by FORK1 and FORK2 ?? because I am trying to decrement the value of global variable 'i' in SIGCHLD handler function and it should be decremented only for the processes created by FORK1 .. I tried to use an array and save the process id [this code is placed in fpid0 part] of the child processes created by FORK1 and then decrement the value of 'i' only if the process id of dead child is within the array ... But this didn't work out as sometimes child processes dead so fastly that updating the array is not done perfectly and everything messed up. So is there any better solution for this problem ??

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  • Questions a bout "interrupt"

    - by smwikipedia
    Could someone help me clarify the following conecpts, and the relationship among them? Maskable interrupt Unmaskable interrupt Hardware interrupt Software interrupt CPU INTR pin the IF bit of EFlags register Some specific questions: What's the relationship between Maskable/Unmaskable interrupt and Hardware/Software interrupt? What kind of interrupts does INTR pin detect? What kind of interrupts are enabled/disabled by IF bit of EFlags register? What kind of interrupts need the presence of an interrupt controller? Many thanks.

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  • Understanding how rpmbuild works

    - by ereOn
    Hi, For my work, I have to create a documentation on "How-to create a RPM package on Red Hat 5". I'm used to Debian and it's derivative (Ubuntu, and so on) and thus to Debian packages (aka. .deb files). It seems that the RPM logic is quite different from what I know already and I am having some issues understanding the "RPM logic". From what I read, it seems that ones need to be root to create a RPM package. While I understand why root could be required to install a package, I still don't understand why elevated privileges should be needed to just create one. If I try to create a RPM package as a user, changing the buildroot it fails on the %installstep because I don't have permission to write files into /usr/bin. Fair enough but... why does he want to copy my files into /usr/bin at this step ?! I just want to create the package, not install it ! I'm sure I'm missing something here. Is there anyone who could give me at least a basic understanding of how rpmbuild works and why ? Thank you very much !

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  • Error number 13 - Remote access svn with dav_svn failing

    - by C. Ross
    I'm getting the following error on my svn repository <D:error> <C:error/> <m:human-readable errcode="13"> Could not open the requested SVN filesystem </m:human-readable> </D:error> I've followed the instructions from the How to Geek, and the Ubuntu Community Page, but to no success. I've even given the repository 777 permissions. <Location /svn/myProject > # Uncomment this to enable the repository DAV svn # Set this to the path to your repository SVNPath /svn/myProject # Comments # Comments # Comments AuthType Basic AuthName "My Subversion Repository" AuthUserFile /etc/apache2/dav_svn.passwd # More Comments </Location> The permissions follow: drwxrwsrwx 6 www-data webdev 4096 2010-02-11 22:02 /svn/myProject And svnadmin validates the directory $svnadmin verify /svn/myProject/ * Verified revision 0. and I'm accessing the repository at http://ipAddress/svn/myProject Edit: The apache error log says [Fri Feb 12 13:55:59 2010] [error] [client <ip>] (20014)Internal error: Can't open file '/svn/myProject/format': Permission denied [Fri Feb 12 13:55:59 2010] [error] [client <ip>] Could not fetch resource information. [500, #0] [Fri Feb 12 13:55:59 2010] [error] [client <ip>] Could not open the requested SVN filesystem [500, #13] [Fri Feb 12 13:55:59 2010] [error] [client <ip>] Could not open the requested SVN filesystem [500, #13] Even though I confirmed that this file is ugo readable and writable. What am I doing wrong?

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  • Can someone help fix my vimrc config?

    - by alex
    set nohlsearch set ai set bg=dark set showmatch highlight SpecialKey ctermfg=DarkGray set listchars=tab:>-,trail:~ set list autocmd BufRead *.py set smartindent cinwords=if,elif,else,for,while,try,except,finally,def,class set tabstop=4 set shiftwidth=4 set expandtab set autoindent set smartindent syntax on set listchars=tab:>- set listchars+=trail:. set ignorecase set smartcase map <C-t><up> :tabr<cr> map <C-t><down> :tabl<cr> map <C-t><left> :tabp<cr> map <C-t><right> :tabn<cr> map <F1> <Esc> imap <F1> <Esc> set pastetoggle=<F5> This is my vimrc. I want to fix it so that it doesn't show ---- ---- when other people tab. Thank.

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  • How to execute with /bin/false shell

    - by Amar
    I am trying to setup per-user fastcgi scripts that will run each on a different port and with a different user. Here is example of my script: #!/bin/bash BIND=127.0.0.1:9001 USER=user PHP_FCGI_CHILDREN=2 PHP_FCGI_MAX_REQUESTS=10000 etc... However, if I add user with /bin/false (which I want, since this is about to be something like shared hosting and I don't want users to have shell access), the script is run under 1001, 1002 'user' which, as my Google searches showed, might be a security hole. My question is: Is it possible to allow user(s) to execute shell scripts but disable them so they cannot log in via SSH?

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  • How do I run all my PHPUnit tests?

    - by JJ
    I have script called Script.php and tests for it in Tests/Script.php, but when I run phpunit Tests it does not execute any tests in my test file. How do I run all my tests with phpunit? PHPUnit 3.3.17, PHP 5.2.6-3ubuntu4.2, latest Ubuntu Output: $ phpunit Tests PHPUnit 3.3.17 by Sebastian Bergmann. Time: 0 seconds OK (0 tests, 0 assertions) And here are my script and test files: Script.php <?php function returnsTrue() { return TRUE; } ?> Tests/Script.php <?php require_once 'PHPUnit/Framework.php'; require_once 'Script.php' class TestingOne extends PHPUnit_Framework_TestCase { public function testTrue() { $this->assertEquals(TRUE, returnsTrue()); } public function testFalse() { $this->assertEquals(FALSE, returnsTrue()); } } class TestingTwo extends PHPUnit_Framework_TestCase { public function testTrue() { $this->assertEquals(TRUE, returnsTrue()); } public function testFalse() { $this->assertEquals(FALSE, returnsTrue()); } } ?>

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  • manual install perl-5.10.1-3.tar.bz2 on cygwin

    - by Jason
    Hi, I have the binaries: perl-5.10.1-3.tar.bz2 and I don't have access (admin privileges) to run setup.exe for cygwin, my question is how can I install manually inside cygwin the module for perl: perl-5.10.1-3.tar.bz2 ? (or maybe can I get the sources and compile? can someone tell me please how?) thanks

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  • GTK implementation of MessageBox

    - by Bernard
    I have been trying to implement Win32's MessageBox using GTK. The app using SDL/OpenGL, so this isn't a GTK app. I handle the initialisation (gtk_init) sort of stuff inside the MessageBox function as follows: int MessageBox(HWND hwnd, const char* text, const char* caption, UINT type){ GtkWidget *window = NULL; GtkWidget *dialog = NULL; gtk_init(&gtkArgc, &gtkArgv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK(delete_event), NULL); g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy), NULL); // gcallback calls gtk_main_quit() gtk_init_add((GtkFunction)gcallback, NULL); if (type & MB_YESNO) { dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO, text); } else { dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_INFO, GTK_BUTTONS_OK, text); } gtk_window_set_title(GTK_WINDOW(dialog), caption); gint result = gtk_dialog_run(GTK_DIALOG(dialog)); gtk_main(); gtk_widget_destroy(dialog); if (type & MB_YESNO) { switch (result) { default: case GTK_RESPONSE_DELETE_EVENT: case GTK_RESPONSE_NO: return IDNO; break; case GTK_RESPONSE_YES: return IDYES; break; } } return IDOK;} Now, I am by no means an experienced GTK programmer, and I realise that I'm probably doing something(s) horribly wrong. However, my problem is that the last dialog popped up with this function stays around until the process exits. Any ideas?

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  • Unzipping ".xz" file with 7z and lzma

    - by neversaint
    I tried to uncompressed a "*.xz" file with both 7z and lzma. But they gave me such message: $ 7z x J_12.fq.xz 7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06 p7zip Version 4.57 (locale=C,Utf16=off,HugeFiles=on,4 CPUs) Processing archive: J_12.fq.xz Error: Can not open file as archive $ 7z x J_12.fq.xz 7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06 p7zip Version 4.57 (locale=C,Utf16=off,HugeFiles=on,4 CPUs) Processing archive: J_12.fq.xz Error: Can not open file as archive and with lzma $ lzma -d J_12.fq.xz J_12.fq.xz: unknown suffix -- unchanged

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  • ntpd on Fedora Core 6 with high negative time rest values

    - by Mark White
    The basic problem is we have a FC6 server instance running on a virtual machine, and the system time seems to have been slowly varying until it is now causing a problem. The server runs 24/7 and has been up for 155 days. It has been changed to show GMT, and reports the time as (example) 00:15:15 GMT whereas the actual time is 00:00:00 GMT. This is an offset of 915 seconds. selinux has been changed to 'setenforce 0' for testing and I am running as root. I stop the ntpd service and change the time in System|Administration|Date & Time. The time still shows the same with 'date' in bash. There are no error logs. I change the date with 'date --set' in bash. The response confirms the changed date. I run 'date' and the incorrect date is shown. There are no error logs. I start the ntpd service and /var/log/messages shows success with 'time reset -915.720139s'. The date remains unchanged. ntpq -p shows three three time servers all have offsets of around -915 seconds. I stop ntpd service and try 'ntpd -gqx' and get the same result as above - success, but a large negative time reset. I've tried varying combinations of the above, and a few more settings in System|Administration|Date & Time - no change. I just need to reset the system time to GMT. No offset. But I can't wait for ntpd to slew the time over the next few weeks. Any advice is welcome, cheers! Sure this shouldn't be this difficult... Mark...

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  • Convert Chunk of Data into Tabular Format Using Perl

    - by neversaint
    I have a data that looks like this 1:SRX000566 Submitter: WoldLab Study: RNASeq expression profiling for ENCODE project(SRP000228) Sample: Human cell line GM12878(SRS000567) Instrument: Solexa 1G Genome Analyzer Total: 4 runs, 62.7M spots, 2.1G bases Run #1: SRR002055, 11373440 spots, 375323520 bases Run #2: SRR002063, 22995209 spots, 758841897 bases Run #3: SRR005091, 13934766 spots, 459847278 bases Run #4: SRR005096, 14370900 spots, 474239700 bases 2:SRX000565 Submitter: WoldLab Study: RNASeq expression profiling for ENCODE project(SRP000228) Sample: Human cell line GM12878(SRS000567) Instrument: Solexa 1G Genome Analyzer Total: 3 runs, 51.2M spots, 1.7G bases Run #1: SRR002052, 12607931 spots, 416061723 bases Run #2: SRR002054, 12880281 spots, 425049273 bases Run #3: SRR002060, 25740337 spots, 849431121 bases 3:SRX012407 Submitter: GEO Study: GSE17153: Illumina sequencing of small RNAs from C. elegans embryos(SRP001363) Sample: Caenorhabditis elegans(SRS006961) Instrument: Illumina Genome Analyzer II Total: 1 run, 3M spots, 106.8M bases Run #1: SRR029428, 2965597 spots, 106761492 bases Is there a compact way to convert them into tabular format (tab separated). Hence 1 entry/row per chunk. In these case 3 rows. I tried this but doesn't seem to work. perl -laF/\n/ -000ne"print join chr(9),@F" myfile.txt

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  • sendmail redhat

    - by lepricon123
    For some reason even after providing the sender's from adress my mails are not being delivered as from is missing as below maillog. Any suggestions? May 8 20:08:43 tawq02 sendmail[13443]: o4938hJD013443: ruleset=check_mail, arg1=<{}, relay=localhost.localdomain [127.0.0.1], reject=553 5.5.4 <{}... Domain name required for sender address {} May 8 20:08:43 tawq02 sendmail[13443]: o4938hJD013443: from=<{}, size=0, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]

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  • Unix RPC programming

    - by Abhi
    Heyy all, I needed some help with ONC RPC programming. My task is to create two-tier client-server architecture wherein one main server (something like a directory) keeps a track of level-two servers and acts as a lookup; the level-two servers exposing some trivial functions, and finally, the clients for level-two servers. The clients ask the directory where a server is located, and then communicate with it. Using RPCGEN, we can create a pair of client-server code; however, the clients in this case need to have stubs for the directory as well as the level-two functions. Being a newbie to RPC, I'm having trouble conceptualizing the way I should code this. How can I call a function from a different server if a client is generated using a different IDL ? Any pointers would be appreciated :) Regards, Abhi

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  • Regex to find external links from the html file using grep

    - by Amar
    hello, From past few days I'm trying to develop a regex that fetch all the external links from the web pages given to it using grep. Here is my grep command grep -h -o -e "\(\(mailto:\|\(\(ht\|f\)tp\(s\?\)\)\)\://\)\{1\}\(.*\?\)" "/mnt/websites_folder/folder_to_search" -r now the grep seem to return everything after the external links in that given line Example if an html file contain something like this on same line GoogleYahoo then the given grep command return the following result http://www.google.com">Google</a><p><a href='https://yahoo.com'>Yahoo</a></p> the idea here is that if an html file contain more than one links(`irrespective in a,img etc`) in same line then the regex should fetch only the links and not all content of that line I managed to developed the same in rubular.com the regex is as follow ("|')(\b((ht|f)tps?:\/\/)(.*?)\b)("|') with work with the above input but iam not able to replicate the same in grep can anyone help I can't modify the html file so don't ask me to do that neither I can look for each specific tags and check their attributes to to get external links as it addup processing time and my application doesn't demand that Thank You

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  • kernelHow to read/write files within kernel module?

    - by Methos
    I know all the discussions about why one should not read/write files from kernel, instead how to use /proc or netlink to do that. I want to read/write anyway. I have also read http://www.linuxjournal.com/article/8110 However, problem is 2.6.30 does not export sys_read(). Rather its wrapped in SYSCALL_DEFINE3. So if I use that in my module, I get following warnings: WARNING: "sys_read" [xxx.ko] undefined! WARNING: "sys_open" [xxx.ko] undefined! Obviously insmod cannot load the module because linking does not happen correctly. Questions: How to read/write within kernel after 2.6.22 (where sys_read()/sys_open() are not exported)? In general, how to use system calls wrapped in macro SYSCALL_DEFINEn() from within the kernel?

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  • Lamp panel::Ubuntu

    - by Yosef
    Hi I just install ubuntu 10.04. I use to use wamp server on windows that have manager panel. Is lamp have such panel, or I have to time manually? Thanks, Yosef

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