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  • C++ enforce conditions on inherited classes

    - by user231536
    I would like to define an abstract base class X and enforce the following: a) every concrete class Y that inherits from X define a constructor Y(int x) b) it should be possible to test whether two Y objects are equal. For a, one not very good solution is to put a pure virtual fromInt method in X which concrete class will have to define. But I cannot enforce construction. For b), I cannot seem to use a pure virtual method in X bool operator == (const X& other) const =0; because in overridden classes this remains undefined. It is not enough to define bool operator == (const Y& other) const { //stuff} because the types don't match. How do I solve these problems?

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  • LSI RAID monitor reports "Consistency Check inconsistency logging disabled"

    - by carlpett
    I have a server with a LSI MegaRAID 9261-8i controller. Recently I started getting alerts like this one: Controller ID: 1 Consistency Check inconsistency logging disabled, too many inconsistencies on VD: 0 Generated on:Sat May 12 04:06:40 2012 SYSTEM DETAILS--- IP Address: 192.168.1.29 OS Name: Windows 7 x64 OS Version: 6.01 Driver Name: megasas.sys Driver Version: 4.5.1.64 IMAGE DETAILS--- BIOS Version: 2.120.33-1197 Firmware Package Version: 12.12.0-0045 Firmware Version: 3.21.00_4.11.05.00_0x05000000 VD 0 is a RAID mirror containing the system disk. I have searched and read, but cannot find any trace of how to actually do anything about this. I tried running a scandisk but that did not find anything (as I expected, since scandisk reads the disks as exposed by the controller, right?). The MegaRAID Storage Manager does not as far as I can see have any options for checking or fixing physical disks. The program claims the VD is "healty", and both disks have Error count 0. Also a bit strange is the System details in the message... The IP address is associated with the RAS (dial in) interface, and the OS should be Windows Server 2011 SBS. Has anyone else experienced this before? What can be done?

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  • Disable raid member check upon mount to mount damaged nvidia raid1 member

    - by Halfgaar
    Hi, A friend of mine destroyed his Nvidia RAID1 array somehow and in trying to fix it, he ended up with a non-working array. Because of the RAID metadata, the actual disk data was stored at an offset from the beginning. I was able to identify this offset with dd and a hexeditor and then I used losetup to create a loop device with the proper offset, so that I could mount the partition. It was then that I ran into problems, namely that mount says: "mount: unknown filesystem type 'nvidia_raid_member'". I also had this when trying to mount a Linux MD component the other day, and because I can remember that doing that in the past worked, I surmised that it may be some kind of protection. I therefore booted an old Sysrescue CD and tried it there, which worked (because of the older version of mount/libc/kernel/whatever). I still need to try to get more data, and because I don't want to keep using that SysrecueCD, I'd like to be able to mount the disk on my normal system. So, my question is: can the check for a disk being a raid member be disabled? I guess I could also zero out blocks that look like the raid block, but I'd rather not... I made an image of the disk with par2 data, so it's revertable, but still...

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  • .htaccess Permission denied. Unable to check htaccess file

    - by Josh
    I have a strange problem when adding a sub-domain to our virtual server. I have done similar sub-domains before and they have worked fine. When I try to access the sub-domain I get an 403 Forbidden error. I checked the error logs and have the following error: pcfg_openfile: unable to check htaccess file, ensure it is readable I've searched Google and could only find solutions regarding file and folder permissions, that I have checked and the solution isn't solved. I also saw problems with Frontpage Extensions, but that's not installed on the server. Edit Forgot to say that there isn't a .htaccess file in the directory of the sub-domain Edit #2 Still not been able to find a solution on this. Only things I have been able to find out is: It doesn't seem to be a problem with any .htaccess files (I've tried creating blank ones, with correct user privileges). It doesn't seem to be a problem with any folder permissions as they are all set correct. There isn't a problem with the way the sub-domain has been set up, as I've tried pointing the DocumentRoot to another folder and it worked fine. I've also done sub-domains fine before with no problem. Edit #3 Find out more information. I don't think it can be a file permission problem now, because if I access it by going to the server ip and then the directory where the site is hosted it all works fine (minus the stylesheets & images, which is just down to how they are linked)

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  • pam debugging "check pass; user unknown"

    - by lvc
    I am attempting to get Prosody authenticating with its auth_pam module. It is configured to use the pam service name xmpp. The pam.d/xmpp file is copied straight from the one configured for dovecot (originally taken from, I think, dovecot's documentation), which is known to be working: # cat /etc/pam.d/xmpp auth required pam_unix.so nullok debug account required pam_unix.so debug Logging in with dovecot works wonderfully. Logging in with prosody, with exactly the same username and password, causes Prosody to return 'Not authorized', and the following in journalctl -f: Oct 29 22:12:14 riscque.net prosody[9396]: c2s1d010b0: Client sent opening <stream:stream> to riscque.net Oct 29 22:12:14 riscque.net prosody[9396]: c2s1d010b0: Sent reply <stream:stream> to client Oct 29 22:12:14 riscque.net prosody[9396]: [178B blob data] Oct 29 22:12:14 riscque.net unix_chkpwd[9408]: check pass; user unknown Oct 29 22:12:14 riscque.net prosody[9396]: pam_unix(xmpp:auth): conversation failed Oct 29 22:12:14 riscque.net prosody[9396]: pam_unix(xmpp:auth): unable to obtain a password Oct 29 22:12:14 riscque.net prosody[9396]: pam_unix(xmpp:auth): auth could not identify password for [lvc] Oct 29 22:12:14 riscque.net prosody[9396]: riscque.net:saslauth: sasl reply: <failure xmlns='urn:ietf:params:xml:ns:xmpp-sasl'><not-authorized/><text>Unable to authorize you with the authentication credentials you&apos;ve sent.</text></failure> This series of errors seems mutually contradictory - first it says "user unknown", but then that it can't obtain the password for lvc - this username certainly exists on the system. What is likely going on here, and how would I debug this further?

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  • Ubuntu 13.04 to 13.10: Filesystem check or mount failed [migrated]

    - by SamHuckaby
    I attempted to upgrade from Ubuntu 13.04 to 13.10 today, and mid upgrade the system started flaking out, and eventually locked up entirely. I was forced to restart the computer, and am now unable to get the computer to boot up at all. When I boot currently, it takes me to the GRUB menu, and I can choose to boot normally, or boot in an older version. I have tried several things, which I list below, but no matter what, when I try to finish booting into Ubuntu, I receive the following error: Filesystem check or mount failed. A maintenance shell will now be started. CONTROL-D will terminate this shell and continue booting after re-trying filesystems. Any further errors will be ignored root@ubuntu-computername:~# I have fun fsck -f and everything appears correct, no errors are reported. and it passes all 5 checks. If I run fdisk -l then I get the following information: Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes Disk identifier: 0x00010824 Device Boot Start End Blocks Id System /dev/sda1 * 2048 608456703 304227328 83 Linux /dev/sda2 608458750 625141759 8341505 5 Extended Partition 2 does not start on physical sector boundary. /dev/sda5 608458752 625141759 8341504 82 Linux swap / Solaris Disk /dev/sdb: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x0fb4b7e8 Device Boot Start End Blocks Id System /dev/sdb1 8192 625139711 312565760 7 HPFS/NTFS/exFAT I am considering just installing a new OS on the other disk, that currently has nothing on it, and then just attempting to scrape my data off the old disk (thankfully I didn't encrypt the files). Really my question is this: Can I salvage this Ubuntu install, or should I give up and just reinstall?

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  • How to check DVD integrity at max read speed of DVD writer

    - by ashishsony
    I need to check the integrity of burned DVDs so that I can be sure about my backed-up data. I use DL-DVDs to take the backup. Earlier I used VSO Inspector software for the same but the day I switched to DL-DVDs the VSO Inspector gives me errors upon checking. I think the errors are because the switching of layer writing involves some dummy data somewhere. Secondly, it's damned slow for checking. I believe if there is a utility that can read all files (not the disk surface) and report if some files are unreadable would do the job. But it should be quick! Nobody wants to sit for disk checking for 3-4 hours after a quick 30 min data burn! I am looking for such a utility on Windows or Linux. Even scripts (python, etc) will do. I just want to be assured that the data is safe. Can someone help me in this? Thanks.

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  • pcfg_openfile: unable to check htaccess file, ensure it is readable

    - by rxt
    After moving a website folder on my local development machine to another drive, then moving it back, I got a 403 error. Most of this problem had probably to do with rights that got messed up. After deleting the code and restoring it from SVN, the rights seemed allright. The error stayed however. The setup is a bit complex, as follows: I have Ubuntu 10.4 as development machine, trying to mimic the server as much as possible We use Eclipse + SVN and I create all projects in a local folder under my user account In /var/www-vhosts I create folders for each vhost, like this one: test.localhost test.local/index.php: includes the index file of the project test.local/.htaccess is a dynamic link to the htaccess file in a project subfolder I get the following error in the apache error log: [Thu Jul 08 15:55:56 2010] [crit] [client 127.0.0.1] (13)Permission denied: /var/www-vhosts/test.localhost/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable The problem seems to be the .htaccess file, or the link to it. When I empty the htaccess, nothing changes When I remove the link, the index-include produces some output (in the apache error log) When I remove the link and replace it with the actual file, I get another error: [Thu Jul 08 16:47:54 2010] [error] [client 127.0.0.1] Symbolic link not allowed or link target not accessible: /var/www-vhosts/test.localhost/test I'm lost here, don't know what to do next. Do you have any ideas what I can try? This setup has worked before, but I don't know what is different now.

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  • Configuring nginx to check for hard files in only a few directories,

    - by Evan Carroll
    For a node.js project I'm doing, I have a tree like this. +-- public ¦   +-- components ¦   +-- css ¦   +-- img +-- routes +-- views Essentially, I have the root to be set to public. I want all requests destined to /components/ /css/ /img/ To check to see if their appropriate destinations exist on disk. However, I don't want requests to other directories to even run an IO operation, /foo/asdf /bar /baz/index.html None of those should result in the disk being touched. I have a stansa that does the proxy to node.js, location @proxy { internal; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass http://localhost:3030; proxy_redirect off; } I just would like to know how to arrange this. My problem would be easily solved if try_files took a single argument, but it always wants a file first. location /components/ { try_files $uri, @proxy } location /css/ { try_files $uri, @proxy } location /img/ { try_files $uri, @proxy } However, there is nothing that I can find that will give me, location / { try_files @proxy } How do I get the effect I want?

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  • How to control/check CheckPoint rules changes (and another System events)

    - by user35115
    I need to check/control all system events on many CheckPoint FW1 - don't misunderstand - not rules triggering, but events such admins log on, rules changes and etc. I found out that I can make an log export using 2 methods: Grab logs Use special script that redirect Checkpoint log entries to syslog, FW1-Loggrabber But it's not clear for me does such logs also contain information that i need (admins log on, rules changes)? And If yes is it possible to filter events? I also suppose, that if system bases on *nix platform it must be a ploy - use based functions of the system to do what i want. Unfortunately i don't know where to "dig". May be you know? Updated: New info "FW-1 can pipe its logs to syslog via Unix's logger command, and there are third party log-reading utilities" So, the main question is how do my task in the best way? Has anybody already resolved such problem? P.S. I' m new with CheckPoint, so all information will be useful for me. Thank you.

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  • "Unverifiable code failed policy check" for a closed source assembly

    - by Jason
    I'm attempting to dynamically load some (purchased) assemblies from resource streams in a C# program during an MSI installation routine, but I'm getting "Unverifiable code failed policy check". I read some tips online about compiling the embedded assembly with /clr:safe, but I don't have that option. Is there a way to work around this policy check? Thanks.

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  • How to check the MSMQ messagebody is valid or not

    - by somaraj
    Hi, Iam new to .Net and working on MSMQ I want to check whether the body of a message receives is valid or not , so I am doing a validation " msmqMessage.Body == null " , but this throws exception . I also found that the bodytype is 0 when this happens other wise it will be 768 So is it ok to check whether the bodytype ==0 for invalid message . I dont know what does 0 and 768 stands for , from where i can get differnt values for bodytype and what does it represent?

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  • How to check if a field is an Image field

    - by AJ
    Hello, This might seem an easy question for some, but I am struggling with it. I am trying to use SQLDataReader.GetFieldType to check if a certain field is an Image field. Lets assume the first field of the result set is an Image field, if I do: reader.GetFieldType(0).ToString; I get System.Byte[] But is this the correct way to check for it? I really don't like: if (reader.GetFieldType(0).ToString="System.Byte[]") Is there a better way? Thanks, AJ

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  • Spell check in django template pages

    - by Hulk
    All, Is there any tool to do a UI spell check .I use a linux box here and also use django frame work. SO in the html pages if any spell check is to be made ignoring html tags and template tags.How should this be done. Thanks..

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  • Check if a Lat/Long point is on the GRoute

    - by Pavel
    I'm ploting a route between two points and I need to check if the route goes through a predefiend location. In the api, each GStep has a start and end points but the path doesn't have to be straight. Given a Lat/Long point, is there a way to check if it intersects with a route? -- Pavel

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  • actionscript 2.0:Check TextField in flash

    - by RedsDevils
    I have some problem in check two textfield.text comparison. One TextField.text value is come from calculation and the other textField is from user input. When I check those two text, the TextField.text value didn't show and I can't compare those two. How can I compare in actionscript 2.0. Please Help me! Thanks in advance!

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  • Basic Recursion, Check Balanced Parenthesis

    - by pws5068
    Greetings all, I've written software in the past that uses a stack to check for balanced equations, but now I'm asked to write a similar algorithm recursively to check for properly nested brackets and parenthesis. Good examples: () [] () ([]()[]) Bad examples: ( (] ([)] Suppose my function is called: isBalanced. Should each pass evaluate a smaller substring (until reaching a base case of 2 left)? Or, should I always evaluate the full string and move indices inward?

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  • check if an uri exists?

    - by noname
    how do i check if an uri exists with php? i guess it will return an error code and i can check it before i use file_get_contents...cause if i use file_get_contents on a link that doesnt exist, it give me an error.

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  • Check if cookie exists if not create it.

    - by Ozaki
    TLDR: Want to check if cookie exists, if it doesn't create it. Am using jquery1.4.2 and jquery cookie, I know this is probably very simple but I just cant get my head right at the moment. I want to: Check to see if a cookie with name of "query" exists If so nothing. If not create a cookie "query" with a value of 1. But only if it doesn't already exist. Thanks in advance

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  • [MQ] How to check which point is cause of problem

    - by Fuangwith S.
    Hello everybody, I use MQ for send/receive message between my system and other system. Sometime I found that no response message in response queue, yet other system have already put response message into response queue (check from log). So, how to check which point is cause of problem, how to prove message is not arrive to my response queue. In addition, when message arrive my queue it will be written to log file. Thanks

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