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• Is it possible to change User's Home Directorys permission in OSX?

  - by Sosiska

  Most of your staff uses OSX as main operation system. The problem is that recently we were attacked with some odd malware: users are getting zip-file via mail, and when they open this zip file, they execute a binary keylogger malware, that is inside this zipped file. (One click is enough). We have some non-technical limitations and due this limitation we can't configure user's mail servers. But actually we have physical access to their laptops. As far as I know, there is possible to mount user's home directory without "x" (execution) permission in Linux and *BSD. So users can't run some binary file inside home directory. Is it possible to configure OS X so that user can't execute files inside /Users/?

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• df -h overreports disk space on VPS

  - by Rincewind42

  When I run the command df -h on my new Ubuntu linux vServer I get the following: # df -h Filesystem Size Used Avail Use% Mounted on /dev/hdv1 466G 33G 434G 7% / none 16M 0 16M 0% /tmp Running du -sh gives # du -sh du: cannot access `./proc/13624/task/13624/fd/4': No such file or directory du: cannot access `./proc/13624/task/13624/fdinfo/4': No such file or directory du: cannot access `./proc/13624/fd/4': No such file or directory du: cannot access `./proc/13624/fdinfo/4': No such file or directory 952M . The VPS should only have 5Gb of disk space but df reports 466Gb. How can I view the correct amount of disk space?

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• Edit write-protected files by breaking hard links

  - by Taymon

  A directory which I own and can write to contains hard links to files that I don't own and don't have write permission for. I want to open and edit these files in Emacs. When I save my changes, Emacs should rename the existing hard link by appending ~, then write my new version of the file as a new file owned by me. I was under the impression that Emacs could just do this (because of the way it does backups), but it's not working; when I save, it attempts to change the file's permissions in order to write to it (and fails because I don't own the file). How do I make this happen?

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• FFmpeg add multiple audio files to video at specific points

  - by Arran

  I have two audio files, each about 3 minutes long. I want to take the first 10 seconds of each file and add them each to a video file at specific points - 0 seconds and 10 seconds. So the resulting video should be 20 seconds long. I've got this far: ffmpeg -i video.mov -ss 0 -t 20 -itsoffset 0 -i audio1.mp3 -itsoffset 10 -i audio2.mp3 -acodec copy -vcodec copy out.mov ...but the resulting video has 20 seconds of the first audio file only, the second audio file doesn't start at 10 seconds like it should. Any help would be appreciated, thanks!

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• Measuring custom statistics with sar

  - by Will Glass

  I have a server application which I think is leaking file handles. I want to track the usage of file descriptors over time on my Linux (ubuntu) server. I've figured out that I can track the number of file descriptors in use by a process with lsof -p `pgrep the-process-name` | wc -l Since I'm already using sysstat and sar to track various metrics, I thought it'd be nice to display with sar. I want to measure this every 10 minutes. Is it possible to add a custom metric to sar? Then I can easily report it out. If not, I'll write a simple cron job to collect this data and store it separately in a log file.

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• How does Linux's unlink on a NTFS filesystem differs from Window's own implementation?

  - by DavideRossi

  I have an external USB disk with an NTFS filesystem on it. If I remove a file from Windows and I run one of the several "undelete" utilities (say, TestDisk) I can easily recover the file (because "it's still there but it's marked as deleted"). If I remove the file from Linux (I'm using Ubuntu) no utility can recover the file (unless I use a deep-search signature-based one). Why? It looks like Linux does not just "mark it as deleted" but it wipes away some on-disk structure, is this the case?

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• AWSTATS - manual update error (permissions)

  - by Lewis

  Error: Couldn't open file "/var/www/awstats/awstats032014.site.net.tmp.9198" for write: Permission denied Setup ('/etc/awstats/awstats.site.net.conf' file, web server or permissions) may be wrong. Check config file, permissions and AWStats documentation (in 'docs' directory). I get this error when manual trying to update awstats (via the browser link). I have set the folder permissions of /var/www/awstats/ to 775 and still get the error. If I create a new file on that folder the default permission setting set the permissions to 774 which should work.

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• NTFS.SYS error at boot in Win XP

  - by petergrf

  I am using Windows XP and this morning it didn't boot, it showed an error on "Windows/system32/config/SYSTEM" so I connected the hd to another pc, rename that file and then copy the one in Windows/Repair. And now it shows the error cannot find or corrupted "ntfs.sys". I tried copying ntfs.sys from the windows installation cd but still get the same error, also tried "EXPAND :\i836\ntoskrnl.exe ( and ntkrnlpa.exe ) :\Windows\System32" but the error persist. What other fixes can I try?

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• Need to install just libswresample.so.0 on Centos 6 - how? (for FFMPEG)

  - by sprise

  I'm trying to get ffmpeg running on a Centos 6 machine and it has been uphill the whole way. I thought I had got it but when I go to use ffmpeg I get the error: ffmpeg: error while loading shared libraries: libswresample.so.0: cannot open shared object file: No such file or directory I looked in /usr/local/lib, which is where all the libraries are stored, and I do not have that exact file but I do have "libswresample.a". I gave up on the official FFMPEG Centos directions due to all kinds of issues and used yum to install. Where do I find the missing library and can I just put the file in my /usr/local/lib to fix? Thanks -- have a basic Linux understanding, more familiar with Ubuntu than Centos.

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• psql editor setting on Ubuntu

  - by dezso

  The situation is the following. This is an Ubuntu box: Linux ns3mx3 2.6.32-41-server #89-Ubuntu SMP Fri Apr 27 22:33:31 UTC 2012 x86_64 GNU/Linux Which means that when I first issue \e in psql, I'm asked to choose an editor. Then there is the .selected_editor file, which contains # Generated by /usr/bin/select-editor SELECTED_EDITOR="/usr/bin/mcedit-debian" So far this is OK (it's my problem that I consider this completely useless, but never mind). Then I set up a .psqlrc file: \set PSQL_EDITOR /usr/bin/vim \set EDITOR /usr/bin/vim \set VISUAL /usr/bin/vim As you can see, I wanted to be sure not to miss a candidate variable for editor setting. The file is used as expected: test=# \echo :EDITOR /usr/bin/vim But when I issue the \e command, none of these is used - I fall back to SELECTED_EDITOR. The situation remains just the same if I append an \unset SELECTED_EDITOR to the .psqlrc file. Now how can I make .psqlrc setting win over the default editor? (PostgreSQL version id 9.1.4)

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• Is NFS capable of preserving order of operations?

  - by JustJeff

  I have a diskless host 'A', that has a directory NFS mounted on server 'B'. A process on A writes to two files F1 and F2 in that directory, and a process on B monitors these files for changes. Assume that B polls for changes faster than A is expected to make them. Process A seeks the head of the files, writes data, and flushes. Process B seeks the head of the files and does reads. Are there any guarantees about how the order of the changes performed by A will be detected at B? Specifically, if A alternately writes to one file, and then the other, is it reasonable to expect that B will notice alternating changes to F1 and F2? Or could B conceivably detect a series of changes on F1 and then a series on F2? I know there are a lot of assumptions embedded in the question. For instance, I am virtually certain that, even operating on just one file, if A performs 100 operations on the file, B may see a smaller number of changes that give the same result, due to NFS caching some of the actions on A before they are communicated to B. And of course there would be issues with concurrent file access even if NFS weren't involved and both the reading and the writing process were running on the same real file system. The reason I'm even putting the question up here is that it seems like most of the time, the setup described above does detect the changes at B in the same order they are made at A, but that occasionally some events come through in transposed order. So, is it worth trying to make this work? Is there some way to tune NFS to make it work, perhaps cache settings or something? Or is fine-grained behavior like this just too much expect from NFS?

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• Windows command FOR /F isn't working?

  - by Mark Ransom

  I'm trying to use the FOR command in Windows XP's command line. I have a file temp.txt with 3 lines: temp1 temp2 temp3 And I'm typing the following command at the prompt: for /F %p in (temp.txt) do echo Testing %p Nothing comes back. If I remove the /F parameter, the output is Testing temp.txt. As far as I can determine, I'm using the command exactly as it is documented by Microsoft. I've checked my registry to make sure Command Extensions are on, and even started a new shell with cmd /e:on to be doubly sure. What am I doing wrong? Yes, I was doing something wrong. The file temp.txt wasn't created from scratch, I just edited it to put in my test content. Unfortunately when I created the file the first time, I saved it with a UTF-8 marker at the front. Recreating the file as plain text solved the problem.

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• Access denied for user who has full access to some files in their own folder

  - by steve02a

  I have a very similar case as this user: Access denied on some files on Win2008R2 DC share This is on a windows 2008 R2. The user has Win7 pro. The user has their own home folder on the server. Every file, except one, the user can read/write/modify at their own will. No problems - except this one file. She gets "access denied" I can open it (as domain admin). Another user can open it (because she's in the domain admin group). I did run the AccessEnum tool and the read/write permissions are all identical for all files. So, I can't explain why the user can't open this one single file. Out of all her files in sub-folders and such. No problems. This one file is causing a headache. What do you think could be wrong here?

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• Transferring files from ftp to local system

  - by Ramkrishnan

  I want to copy a file from FTP and save it to my local system. I want to run this through batch file. I am trying this for a week. But I couldn't find the solution. Anyone help me please.... This is my actual work Want to copy a file named "Friday.bat" from ftp://172.16.3.132 (with username and password) So i use the below codings: @echo off @ftp -i -s:"%~f0"&GOTO:EOF open 172.16.3.132 mmftp ((((pasword entered here))))) binary get Friday.bat pause Result: ftp> @echo off ftp> @ftp -i -s:"%~f0"&GOTO:EOF Invalid command. ftp> open 172.16.3.132 Connected to 172.16.3.132. 220 Welcome to ABL FTP service. User (172.16.3.132:(none)): 331 Please specify the password. 230 Login successful. ftp> binary 200 Switching to Binary mode. ftp> get Friday.bat 200 PORT command successful. Consider using PASV. 550 Failed to open file. ftp> pause Finally, a file named Friday.bat is copied to my local system with 0 bytes and I am not able to open it

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• Does Qmail utilize any of Sendmail's own configuration files?

  - by user1780242

  I am trying to run sendmail in tandem with qmail. Presently there is a symlink in the /usr/sbin/ directory pointing to the /var/qmail/sendmail binary. What do I have to change in the qmail configuration if I remove the symlink and rename sendmail.sendmail (I think this is the present name for sendmail's binary) to sendmail so my program can call it. What do I have to do to isolate the two installations aside from selecting a different port in sendmail's configuration?

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• Dialog in linux

  - by user35319

  Hi everyone, I want to show the contents of file on Dialog box for which i have use the "--textbox" dialog and "--tailbox" dialog but it dont show the whole contents of file just show some data not the whole data of file...i searched alot but found nothing so if anyone have any idea plz let me know bcoz i have been trying so much to fix the problem...

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• Windows 7 computer cannot delete files from windows 2003 domain share

  - by Dionisis

  Computer running windows 7 pro connected to windows 2003 domain. User creates an xls file and he is trying to delete it. He deletes the file successfully and when he presses F5 to refresh the folder the file re-appears like it was never deleted.

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• linux cron job error

  - by bell

  I have setup a cron job to run a php file every 30 minutes, lynx -source public_html/scripts/file.php the result comes through to an email but seems to get this error Can't Access `file://localhost/home/username/public_html/scripts/file.php' Alert!: Unable to access document. lynx: Can't access startfile any advice would be much appreciated

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• Iptables and system-config-firewall

  - by nivde92

  I had a set of netfilter rules set with iptables, but someone else told me to use system-config-firewall to add a rule for sharing files with Windows. (Samba) This rewrote the iptables rules file and I lost my own custom rules. I have a backup copy, but am having trouble restoring them. Edit: The server is Centos, I already tried to restore the rules with iptables-restore < /root/working.iptables.rules but for some reason the rules don't change. What are you trying to do? Trying to restore the iptable rules that I have in a backup file. What have you tried in order to make it happen? I've tried to modify the iptables file with vim, since the command iptables-restore was no help. What results did you expect? To get the old rules back. What actually happened? Nothing, when I run the command or edit the file by hand the file doesn't change at all. Maybe something else it's overwriting.

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• How do you stop windows 7 from auto streaming mp3's online?

  - by angryuser

  Be it IE, Firefox or Chrome whenever I try to download a media file windows 7 starts streaming it in the browser instead of giving me options about what I want to do with the file i'm trying to download. I know the problem is with the OS and not the browser because I can download the file just fine off the website when I use Ubuntu. I get the feeling somewhere a setting is saying "open all mp3's in browser" but I dont know where to find or change it. Can anyone help? Edit: If I click on the FLAC version of the audio file, windows 7 automatically downloads it. If I click on the MP3 version, it automatically streams it to the browser.

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• How to "undo" in command prompt?

  - by infant programmer

  If I have done some major change, example rename of files etc .. How to roll back the change that is done recently?? Is there a command as such ??

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• subversion issue on mac os x

  - by user32942

  This exists in my httpd.conf file: <Location /svn> DAV svn SVNParentPath /Users/iirp/Sites/svn Allow from all #AuthType Basic #AuthName "Subversion repository" #AuthUserFile /Users/iirp/Sites/svn-auth-file #Require valid-user </Location> This is working file When I change this to: <Location /svn> DAV svn SVNParentPath /Users/iirp/Sites/svn #Allow from all AuthType Basic AuthName "Subversion repository" AuthUserFile /Users/iirp/Sites/svn-auth-file Require valid-user </Location> and when I access my repository through URL, it gives me the authentication screen but after that screen my svn repository is not showing up correctly. to see message that it gives to me is: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log.

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• Undetected Virus? I study at College, and Now all of the school computers have paint.exe -autocheck

  - by Jeffy

  "C:\WINDOWS\system32\Paint.exe" -autocheck is added to the registry every time its removed. This is like global. All the lab PCs(more than a hundred), personal laptops have this file. I really have no expert help to turn to.. as jotti says this file is clean. Here's the dropped file [removed] It seems that we all had this game cheating tool on our PCs called "Garena Maphack". Everytime it was run it would drop paint.exe into the system dir. Paint.exe is diguised as the real paint.exe from windows. Having the same icon and such. Check out threat expert's report at threatexpert.com/report.aspx?md5=176288f6f22a80c76329853f8535d45b The game cheat that started this huge mess can be obtained from [removed] What do I do? any experts care to take apart this file?

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• How to (easily) apply an Openoffice Calc template?

  - by Magnetic_dud

  How I can easily apply a template to an existing OO Calc file? AFAIK it is possible only to make a new file from a template, copy the sheets in it, and save/overwrite the old file. But I don't like this way; there is a easier/better way to do this? Like a macro, or something like that. I just need to repeatedly apply page margins to my sheet.

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• htpasswd and htaccess in Plesk 9.3

  - by J White

  Greetings Here is my situation. I currently have one website on my dedicated server. As of now, I have protected the directory /exclusive using the Plesk control panel. I am having a billing company install their password management script on the server but they need the absolute location to the .htpasswd file. I can't find it or the .htaccess file. Would it be easier to unprotect the /exclusive directory and create the .htaccess file in notepad? If this is done, where should I place the .htpasswd file? -jw

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