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  • Creating a Maze using Java

    - by user356184
    Im using Java to create a maze of specified "rows" and "columns" over each other to look like a grid. I plan to use a depth-first recursive method to "open the doors" between the rooms (the box created by the rows and columns). I need help writing a openDoor method that will break the link between rooms.

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  • Elmah for non-HTTP protocol applications OR Elmah without HttpContext

    - by Josh
    We are working on a 3-tier application, and we've been allowed to use the latest and greatest (MVC2, IIS7.5, WCF, SQL2k8, etc). The application tier is exposed to the various web applications by WCF services. Since we control both the service and client side, we've decided to use net.tcp bindings for their performance advantage over HTTP. We would like to use ELMAH for the error logging, both on the web apps and services. Here's my question. There's lots of information about using ELMAH with WCF, but it is all for HTTP bindings. Does anyone know if/how you can use ELMAH with WCF services exposing non-HTTP endpoints? My guess is no, because ELMAH wants the HttpContext, which requires the AspNetCompatibilityEnabled flag to be true in the web.config. From MSDN: IIS 7.0 and WAS allows WCF services to communicate over protocols other than HTTP. However, WCF services running in applications that have enabled ASP.NET compatibility mode are not permitted to expose non-HTTP endpoints. Such a configuration generates an activation exception when the service receives its first message. If it is true that you cannot use ELMAH with WCF services having non-HTTP endpoints, then the follow-up question is: Can we use ELMAH in such a way that doesn't need HttpContext? Or more generally (so as not to commit the thin metal ruler error), is there ANY way to use ELMAH with WCF services having non-HTTP endpoints?

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  • Still Confused About Identifying vs. Non-Identifying Relationships

    - by Jason
    So, I've been reading up on identifying vs. non-identifying relationships in my database design, and a number of the answers on SO seem contradicting to me. Here are the two questions I am looking at: What's the Difference Between Identifying and Non-Identifying Relationships Trouble Deciding on Identifying or Non-Identifying Relationship Looking at the top answers from each question, I appear to get two different ideas of what an identifying relationship is. The first question's response says that an identifying relationship "describes a situation in which the existence of a row in the child table depends on a row in the parent table." An example of this that is given is, "An author can write many books (1-to-n relationship), but a book cannot exist without an author." That makes sense to me. However, when I read the response to question two, I get confused as it says, "if a child identifies its parent, it is an identifying relationship." The answer then goes on to give examples such as SSN (is identifying of a Person), but an address is not (because many people can live at an address). To me, this sounds more like a case of the decision between primary key and non-primary key. My own gut feeling (and additional research on other sites) points to the first question and its response being correct. However, I wanted to verify before I continued forward as I don't want to learn something wrong as I am working to understand database design. Thanks in advance.

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  • Dig returns "status: REFUSED" for external queries?

    - by Mikey
    I can't seem to work out why my DNS isn't working properly, if I run dig from the nameserver it functions correctly: # dig ungl.org ; <<>> DiG 9.5.1-P2.1 <<>> ungl.org ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24585 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1 ;; QUESTION SECTION: ;ungl.org. IN A ;; ANSWER SECTION: ungl.org. 38400 IN A 188.165.34.72 ;; AUTHORITY SECTION: ungl.org. 38400 IN NS ns.kimsufi.com. ungl.org. 38400 IN NS r29901.ovh.net. ;; ADDITIONAL SECTION: ns.kimsufi.com. 85529 IN A 213.186.33.199 ;; Query time: 1 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sat Mar 13 01:04:06 2010 ;; MSG SIZE rcvd: 114 but when I run it from another server in the same datacenter I receive: # dig @87.98.167.208 ungl.org ; <<>> DiG 9.5.1-P2.1 <<>> @87.98.167.208 ungl.org ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 18787 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;ungl.org. IN A ;; Query time: 1 msec ;; SERVER: 87.98.167.208#53(87.98.167.208) ;; WHEN: Sat Mar 13 01:01:35 2010 ;; MSG SIZE rcvd: 26 my zone file for this domain is $ttl 38400 ungl.org. IN SOA r29901.ovh.net. mikey.aol.com. ( 201003121 10800 3600 604800 38400 ) ungl.org. IN NS r29901.ovh.net. ungl.org. IN NS ns.kimsufi.com. ungl.org. IN A 188.165.34.72 localhost. IN A 127.0.0.1 www IN A 188.165.34.72 The server is running Ubuntu 9.10 and Bind 9, if anyone can shed some light on this for me it'd make me very happy! thanks

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  • How do I change folder timestamps recursively?

    - by MonkeyWrench32
    I was wondering if anyone knows how to change the timestamps of folders recursively based on the latest timestamp found of the files in that folder. So for example: jon@UbuntuPanther:/media/media/MP3s/Foo Fighters/(1997-05-20) The Colour and The Shape$ ls -alF total 55220 drwxr-xr-x 2 jon jon 4096 2010-08-30 12:34 ./ drwxr-xr-x 11 jon jon 4096 2010-08-30 12:34 ../ -rw-r--r-- 1 jon jon 1694044 2010-04-18 00:51 Foo Fighters - Doll.mp3 -rw-r--r-- 1 jon jon 3151170 2010-04-18 00:51 Foo Fighters - Enough Space.mp3 -rw-r--r-- 1 jon jon 5004289 2010-04-18 00:52 Foo Fighters - Everlong.mp3 -rw-r--r-- 1 jon jon 5803125 2010-04-18 00:51 Foo Fighters - February Stars.mp3 -rw-r--r-- 1 jon jon 4994903 2010-04-18 00:51 Foo Fighters - Hey, Johnny Park!.mp3 -rw-r--r-- 1 jon jon 4649556 2010-04-18 00:52 Foo Fighters - Monkey Wrench.mp3 -rw-r--r-- 1 jon jon 5216923 2010-04-18 00:51 Foo Fighters - My Hero.mp3 -rw-r--r-- 1 jon jon 4294291 2010-04-18 00:52 Foo Fighters - My Poor Brain.mp3 -rw-r--r-- 1 jon jon 6778011 2010-04-18 00:52 Foo Fighters - New Way Home.mp3 -rw-r--r-- 1 jon jon 2956287 2010-04-18 00:51 Foo Fighters - See You.mp3 -rw-r--r-- 1 jon jon 2730072 2010-04-18 00:51 Foo Fighters - Up in Arms.mp3 -rw-r--r-- 1 jon jon 6086821 2010-04-18 00:51 Foo Fighters - Walking After You.mp3 -rw-r--r-- 1 jon jon 3033660 2010-04-18 00:52 Foo Fighters - Wind Up.mp3 The folder "(1997-05-20) The Colour and The Shape" would have its timestamp set to 2010-04-18 00:52. Thanks in advance!

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  • ISA Server 2006 SP1 :: Allow unauthenticated users (non domain users) access to external (internet)

    - by Klaptrap
    Now that we have applied an internal to external rule blocking all users access to the internet, other than those users in a whitelist, we have the obvious issue of non authenticated users, not on our domain, i.e.; domain-less guests not being able to access the internet. Other than configuring each machine to use our alternative gateway - which would require a member of IT to be onsite everytime a guest arrives - can this be done through ISA adn AD?

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  • XenServer 6.0.2 path to installation media contains non-ascii characters

    - by cmaduro
    XenServer 6.0.2 install fails no matter what I do. I have confirmed that the md5 checksum on my ISO file is good. I tried installing from a mounted ISO file (remotely via iKVM). I tried installing from physical media. I tried installing from a bootable USB stick (using syslinux + contents of the ISO) All attempts have yielded the same result: When verifying the installation media, at 0% initializing, the following is reported: "Some packages appeared to be damaged." followed by a list of pretty much all the gz2 and rpm packages. If I skip the media verification the installer proceeds and then gives me an error when it reaches "Installing from base pack" at 0% which states "An unrecoverable error has occurred. The error was: 'ascii' codec can't decode byte 0xff in position 20710: ordinal not in range(128) Please refer to your user guide, or contact a Technical Support Representative, for further details" there is one option left which is to reboot. Apparently at some point during the processing of the repositories on the installation media non-ascii characters are found, which causes the installer to quit. How do I fix this? Here are my specs TYAN S8236 motherboard 2 AMD Opteron 6234 processors LSI2008 card connected to 2 1TB Seagate Constellation drives SATA, 1 500GB Corsair m4 SSD SATA and 1 Corsair Forse 3 - 64GB SSD SATA Onboard SATA connected to a slim DVD-+RW. Onboard SAS connected to 2 IBM ESX 70GB 10K SAS drives (for XenServer) 256GB memory ================================================================================= Comments: According to pylonsbook.com "chances are you have run into a problem with character sets, encodings, and Unicode" – cmaduro 10 hours ago A clue is provided by "vmware.com/support/vsphere5/doc/…; Data migration fails if the path to the vCenter Server installation media contains non-ASCII characters When this problem occurs, an error message similar to: 'ascii' codec can't decode byte 0xd0 in position 30: ordinal not in range(128) appears, and the installer quits unexpectedly during the data migration process. – cmaduro 10 hours ago This is an error that python throws. And guess what, the .py extention of the file you have to edit in this link community.spiceworks.com/how_to/show/1168 means the installer is written in python. Python is interpreted, so now to find the install file responsible for this error. – cmaduro 6 hours ago The file that generates the error upon verification is /opt/xensource/installer/tui/repo.py. The error message appears around line 359. – cmaduro 2 hours ago I am fairly sure that the install error is generated somewhere in repository.py as the backend.py file throws errors while methods in that file are being called. Perhaps all errors can be traced back to this file. – cmaduro 1 hour ago

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  • admin can't view non admin user's folder in osx

    - by adolf garlic
    I'm trying to add a new keyboard layout for a non admin user on my mac. I had thought that the keyboard layout would be applied for all users when I added it to mine but alas no. I cannot get into the Users\\library\keyboard layouts folder, as it won't let me (but I'm an admin FFS!) I even went into 'get info' and set it to 'everyone read and write' but it still tells me that I don't have permission How on earth can I update the other user's keyboard layout folder?

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  • ISA Server 2006 SP1 :: Allow unauthenticated users (non domain users) access to external (internet)

    - by Klaptrap
    Now that we have applied an internal to external rule blocking all users access to the internet, other than those users in a whitelist, we have the obvious issue of non authenticated users, not on our domain, i.e.; domain-less guests not being able to access the internet. Other than configuring each machine to use our alternative gateway - which would require a member of IT to be onsite everytime a guest arrives - can this be done through ISA adn AD?

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  • Remote access to server via service control panel for non-admin user in Windows 2008

    - by owenevans00
    I'm trying to configure my Windows 2008 servers so that my developers can view their status without needing to log on to the box or be an admin. Unfortunately, the permissions set in Windows 2008 for remote non-admin users don't include the ability to enumerate or otherwise query services. This causes anything that contacts the SCM on the far end to fail (Win32_Service, sc.exe, services.msc etc). How do I set up permissions so that they can at least list the services and see if they are running?

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  • BOINC permissions issue running as non-admin on Windows PC

    - by sunpech
    I installed BOINC (running World Community Grid) on a PC (running Vista) under an administrator's account. When logged in as a standard user, and BOINC is set to run as a screensaver, it fails to connect and run properly. Only when the program is run as an administrator, does it actually run in the standard user's account. What is the correct way to install and run BOINC for standard users (non-admin) on Windows? -- Not specific to Vista necessarily.

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  • Cannot copy non-latin characters from PDF document

    - by user17381
    Hi, I have a pdf file which contains some non-latin european characters. If I copy some text with the highlight tool, and paste it into another program (word, notepad) - the 'special' characters do not transfer correctly (I get other odd characters in their place). I have tried copying the text from both Acrobat Reader and Foxit. Is there anything I can do here to copy this? Thanks

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  • Effect of HOME on libreoffice to convert to pdf as non-root user

    - by user1032531
    I installed libreoffice-headless and can convert documents when logged on as root. I then tried doing so as another user, and it didn't show an error, but didn't convert the file. I then found that if I get rid of the HOME=/tmp/ayb, it works with the other user. Doesn't HOME=/tmp/ayb just allow files to default to this directory if not specified? (Sorry, I tried to search "Linux HOME", but as you probably expect, received a bunch of non-relevant results). If not, what is the purpose of specifying HOME? Why does setting HOME prevent it from converting on non-root users? Note that /tmp and /tmp/ayb or both 0777. Thank you [root@desktop ~]# yum install libreoffice-headless [root@desktop ~]# yum install libreoffice-writer [root@desktop ~]# ls -l total 48 -rwxrwxrwx. 1 NotionCommotion NotionCommotion 48128 Jul 30 02:38 document_34.doc [root@desktop ~]# HOME=/tmp/ayb; /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc convert /tmp/ayb/document_34.doc -> /tmp/ayb/document_34.pdf using writer_pdf_Export [root@desktop ~]# rm d*.pdf rm: remove regular file `document_34.pdf'? y [root@desktop ~]# /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc convert /tmp/ayb/document_34.doc -> /tmp/ayb/document_34.pdf using writer_pdf_Export [root@desktop ~]# rm d*.pdf rm: remove regular file `document_34.pdf'? y [root@desktop ~]# su NotionCommotion sh-4.1$ HOME=/tmp/ayb; /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc sh-4.1$ rm d*.pdf rm: cannot remove `d*.pdf': No such file or directory sh-4.1$ /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc sh-4.1$ rm d*.pdf rm: cannot remove `d*.pdf': No such file or directory sh-4.1$ exit exit [root@desktop ~]# su NotionCommotion sh-4.1$ /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc convert /tmp/ayb/document_34.doc -> /tmp/ayb/document_34.pdf using writer_pdf_Export sh-4.1$ rm d*.pdf sh-4.1$ HOME=/tmp/ayb; /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc sh-4.1$ rm d*.pdf rm: cannot remove `d*.pdf': No such file or directory sh-4.1$ /usr/bin/libreoffice --headless -convert-to pdf --outdir /tmp/ayb /tmp/ayb/document_34.doc sh-4.1$ rm d*.pdf rm: cannot remove `d*.pdf': No such file or directory sh-4.1$

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  • Why doesn't this for loop work?

    - by evilsoup
    This is on Ubuntu 12.04 I'm trying to figure out how to get ffmpeg to do a batch conversion of FLACs to MP3, recursively. If I cd into a directory and use for f in *.flac; do ffmpeg -i "$f" -c:a libmp3lame -q:a 2 "${f/%flac/mp3}"; done that works perfectly fine. However, when I try this, it doesn't work: for f in "$(find . -type f -name *.flac)"; do ffmpeg -i "$f" -c:a libmp3lame -q:a 2 "${f/%flac/mp3}"; done It doesn't even throw up any useful errors (but here is the output anyway, no need to complain): evilsoup@enchantment:~/Music/Jean Sibelius$ for f in "$(find . -type f -name *.flac)"; do ffmpeg -i "$f" -c:a libmp3lame -q:a 2 "${f/%flac/mp3}"; done ffmpeg version git-2012-12-18-b7e085a Copyright (c) 2000-2012 the FFmpeg developers built on Dec 18 2012 19:23:11 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5) configuration: --enable-gpl --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3 libavutil 52. 12.100 / 52. 12.100 libavcodec 54. 80.100 / 54. 80.100 libavformat 54. 49.102 / 54. 49.102 libavdevice 54. 3.102 / 54. 3.102 libavfilter 3. 28.100 / 3. 28.100 libswscale 2. 1.103 / 2. 1.103 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/02. Symphony No.1.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/03. Symphony No.1.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/stripped2.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/05. Symphony No.1.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/stripped3.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/09. Andante festivo.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/08. Symphony No.3.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/01. Finlandia.flac ./Symphonies 1, 2, 3 & 5 (Oslo Philharmonic Orchestra Conducted by Mariss Jansons) Disc 1/07. Symphony No.3.flac ./Symphonies 1, 2, 3 & 5 I've tested the find command on its own, and it works as expected, so the problem has to be something to do with the interaction between find and for. I'm aware that I could do something with find's -exec option, but I can't find any way to do string substitution as I can with a bash for loop, and I'd rather not have a bunch of file.flac.mp3s to deal with, even if they could be fixed with a simple rename.

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  • Dig returns "status: REFUSED" for external queries?

    - by Mikey
    I can't seem to work out why my DNS isn't working properly, if I run dig from the nameserver it functions correctly: # dig ungl.org ; <<>> DiG 9.5.1-P2.1 <<>> ungl.org ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24585 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1 ;; QUESTION SECTION: ;ungl.org. IN A ;; ANSWER SECTION: ungl.org. 38400 IN A 188.165.34.72 ;; AUTHORITY SECTION: ungl.org. 38400 IN NS ns.kimsufi.com. ungl.org. 38400 IN NS r29901.ovh.net. ;; ADDITIONAL SECTION: ns.kimsufi.com. 85529 IN A 213.186.33.199 ;; Query time: 1 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sat Mar 13 01:04:06 2010 ;; MSG SIZE rcvd: 114 but when I run it from another server in the same datacenter I receive: # dig @87.98.167.208 ungl.org ; <<>> DiG 9.5.1-P2.1 <<>> @87.98.167.208 ungl.org ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 18787 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;ungl.org. IN A ;; Query time: 1 msec ;; SERVER: 87.98.167.208#53(87.98.167.208) ;; WHEN: Sat Mar 13 01:01:35 2010 ;; MSG SIZE rcvd: 26 my zone file for this domain is $ttl 38400 ungl.org. IN SOA r29901.ovh.net. mikey.aol.com. ( 201003121 10800 3600 604800 38400 ) ungl.org. IN NS r29901.ovh.net. ungl.org. IN NS ns.kimsufi.com. ungl.org. IN A 188.165.34.72 localhost. IN A 127.0.0.1 www IN A 188.165.34.72 and the named.conf.options is default: options { directory "/var/cache/bind"; // If there is a firewall between you and nameservers you want // to talk to, you may need to fix the firewall to allow multiple // ports to talk. See http://www.kb.cert.org/vuls/id/800113 // If your ISP provided one or more IP addresses for stable // nameservers, you probably want to use them as forwarders. // Uncomment the following block, and insert the addresses replacing // the all-0's placeholder. // forwarders { // 0.0.0.0; // }; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { ::1; }; listen-on { 127.0.0.1; }; allow-recursion { 127.0.0.1; }; }; named.conf.local: // // Do any local configuration here // // Consider adding the 1918 zones here, if they are not used in your // organization // include "/etc/bind/zones.rfc1918"; zone "eugl.eu" { type master; file "/etc/bind/eugl.eu"; notify no; }; zone "ungl.org" { type master; file "/etc/bind/ungl.org"; notify no; }; The server is running Ubuntu 9.10 and Bind 9, if anyone can shed some light on this for me it'd make me very happy! thanks

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  • ddrescue a non-solaris disk gets I/O error

    - by rleir
    I am trying to get a disk image of a SCSI disk using ddrescue on Solaris10 (Sparc). The disk is non-solaris, and ddrescue gets an immediate I/O error (as does dd). I used format to label the disk as Solaris, and now ddrescue reads it fine. Is there any way to get the image without labelling the disk as Solaris?

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  • TortoiseGit with non-default SSH port

    - by pek
    Hello, I have successfully setup gitosis on my server thanks to this helpful howto. Versions: Server: CentOS 5 Desktop: Windows 7 Git (on Desktop): 1.6.5.1.1367.gcd48 Client: TortoiseGit 1.3.2.0 (with msysgit 1.6.1) How can I clone a Git repository from my server when my SSH port is non the default (22)? I believe that the URL ssh://[email protected]:3031/gitosis-admin.git works, but I get: '/gitosis-admin.git' does not appear to be a git repository Thank you.

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  • Running Windows without administrative rights?

    - by overtherainbow
    Hello, Among the millions of applications written for Windows, I assume there are probably quite a lot that are too old or too sloppy to run without administrative rights. To convert users to using non-admin accounts in their day-to-day use of Windows, I need a tool that will sort applications between those than can run safely as non-admin and those that expect to have those rights and will thus show some obvious or not-so-obvious wrong behavior as a result. Does someone know of such a tool that would be available for XP/Vista/7, and either scan the whole disk for unsafe applications, or would be started at boot time and lurk in the background so that it would show a pop-up and report applications that triggered an error because of this lack of admin rights? Thank you.

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  • Can I install ClearCase 7.1 With non-root

    - by Dag
    I would like to install clearcase 7.1 on AIX. but i'm not system admin of this server i can get root password for install only. i worry if after install i cannot configure or manage Clearcase by another user. so i would like to install by non-root user.

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