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• why vim script change inside visual area not work?

  - by avalan_che

  Say a webpage like this: ... <div class="block"> <p>...</p> <p>...</p> </div> <p>...</p> ... I tried to add class="cls" to <p>s inside <div class="block">, so I did: while search('div class="block"','W') 0 normal vat '<,'>s@<p@<p class="cls"@gec endw but this wouldn't work as expected: those <ps outside <div class="block" got changed too. In command window these lines totally work, why not putting together?

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• Ubuntu (desktop) server needed for school

  - by Dave Moody

  I need to build an ubuntu server for school, but I hate with a passion command line interfaces. I need a server with a desktop, like the current win server 2003 (which has crashed, ugh). This server needs to host the school lan domain, have an active directory, and handle the roaming profiles that the students and staff access through WinXP workstations. It also needs to work as a file server, maybe a print server. Can anyone advise me on how to create an Ubuntu server starting with Ubuntu Desktop edition? Much thanks if you respond... Dave.

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• Lots of artifacts while streaming HD content with VLC 0.9.9 on CentOS

  - by Zsub

  I'm trying to stream (multicast) a x264 encoded file using VLC. This in itself succeeds, but the stream has a huge lot of artifacts. This seems to suggest that the data cannot be transported fast enough. If I check network usage, though, it's only using about 15 mbit. I have a similar SD stream which functions perfectly. I think I could improve stream performance by not streaming the raw data, but I cannot seem to get this working. It seems that on keyframes all artifacts are removed for a short while (less than a second). This is the command I use: vlc -vv hdtest.mkv --sout '#duplicate{dst=rtp{dst=ff02::1%eth1,mux=ts,port=5678,sap,group="Testgroup",name="TeststreamHD"}}' --loop Which is all one long line.

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• InnoDb Overhead?

  - by Rimary

  I just converted several large tables from MyISAM to InnoDB. When I view the tables in phpMyAdmin, they are showing a significant amount of overhead (One table has 6.8GB). Optimizing the tables (which isn't a supported command on InnoDB) has no affect like it does on MyISAM. Is this a result of InnoDB having the ever growing data file that never returns space even after deletes? If that's the case, I've never seen overhead like this before from other InnoDB tables. Is there a way to clean this up? Edit: Here are the things I've tried (with no success): Optimize Table Reorder table by primary key Defragment table

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• Would there be any problems with DEP turned off?

  - by IneedHelp

  I recently moved to a fresh Windows 8 x64 system and I learned that my favourite firewall (JPF - Jetico Personal Firewall) doesn't get along with Win8x64 (CRITICAL_STRUCTURE_CORRUPTION errors), but I can not do without JPF, so I kind of tried everything I could think of (test mode, debugging, various system changes), but I was still getting blue screens because of the firewall driver/software. I know for sure that it is the firewall that is causing the problems because I get blue screens as soon as I install it and they stop when I uninstall it. I Also tested it thoroughly on virtual computers. Anyway, I have discovered that by completely turning DEP off by using this command: bcdedit.exe /set {current} nx AlwaysOff the firewall would not cause blue screens anymore. So my question is, what could go wrong with DEP completely turned off? Note: I do not care much about hardware/windows security, I keep myself secured by using sandboxes and virtual computers (and I also have backups), so I'm not concerned with viruses and root kits or whatever people are freaking out about.

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• Windows Azure Error: Failed to start Storage Emulator: the SQL Server instance ‘localhost\SQLExpress’ could not be found

  - by DigiMortal

  When running some of your Windows Azure applications when storage emulator is not configured you may get the following error: "Windows Azure Tools: Failed to initialize Windows Azure storage emulator. Unable to start Development Storage. Failed to start Storage Emulator: the SQL Server instance ‘localhost\SQLExpress’ could not be found.   Please configure the SQL Server instance for Storage Emulator using the ‘DSInit’ utility in the Windows Azure SDK.". Here’s how to solve this problem. You need to run DSInit utility to create database. For Windows Azure SDK 1.6 the location for DSInit utility is: C:\Program Files\Windows Azure Emulator\emulator\devstore By default DSInit expects that your database server is (local)\SQLEXPRESS but you can change it easily. If you have MSSQL instance called SQLEXPRESS then it is enough to just run DSInit. If you need some other instance then run the following command: DSInit /sqlinstance:<instance name> For default instance use “.” as instance name: DSInit /sqlinstance:. You can find more information about sqlinstance and other switches from DSInit documentation. If database was correctly created you should see dialog like this: When storage database is ready you can run your application.

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• Server 2012 file server security - File access through software only?

  - by user1607914

  I have just setup a server 2012 essentials R2 box as a test bed for my small business. Its running Essentials R2 as a VM on a Essentials R2 host. I have set it up to be the DC and DHCP server and joined a client. My next task is to use it as a file server but I am not quite sure how to set it up. All the client interactions with the file server will be through client side software. I therefore do not want any access to the files apart from through the software. I have looked at the ntfs permissions and there is a permission called "List Folder/Read Data" however I am unsure this will do what I want. Is it possible to give access to the files but not allow access through the windows explorer / command line?

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• Excel conditional selection?

  - by Andrew

  I think this is a simple question. I have a big table of data points and I want to take a an average of a subset of a single column. For example, if A is "age" and B is "gender," what command could I use to calculate the average age of women in my table? I know I can do this by sorting the table by column B and then only selecting column A values, but I want to build up to much more complicated conditional terms (e.g. if A is 5 and B is 3 and C is 4, then give me the average of D). Thanks!

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• Exchange retention work cycle properties

  - by marcwenger

  I've setup retention tags and policies in Exchange, but only run when I execute start-managedfolderassistant Upon running the command get-mailboxserver | fl name,*workcycle*, *ManagedFolderAssistantSchedule*, I noticed the following fields (truncated): ManagedFolderWorkCycle : 1.00:00:00 ManagedFolderWorkCycleCheckpoint : 1.00:00:00 ManagedFolderAssistantSchedule : {Sun.1:00 AM-Sun.9:00 AM, Mon.1:00 AM-Mon.9:00 AM, Tue.1:00 AM-Tue.9:00 AM, Wed.1:00 AM-Wed.9:00 AM, Thu.1:00 AM-Thu.9:00 AM, Fri.1:00 AM-Fri.9:00 AM, Sat.1:00 AM-Sat.9:00 AM} The first two are set to run every day, but does this conflict with what is set in ManagedFolderAssistantSchedule? What's the difference between ManagedFolderWorkCycle and ManagedFolderWorkCycleCheckpoint?

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• Possible to load entries into hosts.deny from text file?

  - by Tar

  I have around 96 million IP addresses that I have collected and routinely validate to be VPN providers, proxies, etc. I want these blocked. Currently, I am including the list formatted like deny ip; in nginx and that works perfectly. I want to use this list on another server, but nginx isn't an option, and I don't trust apache to handle this without slowing down. Is there a way to load this list into hosts deny via some command like aclexec or something? Are there other alternatives like setting up a DNSBL or using hosts.deny in conjunction with one?

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• Only show changed files while syncing from ext4 to NTFS

  - by qox

  I would like rsync to print modified and deleted files. The verbose option (-v) does print modified files but also the list of subdirectories, maybe because touched directories are considered modified. Since I sync a lot of files from a lot of subdirectories, it's impossible to see the actual changes. So, is there a way to not print directories using rsync ? Im not looking for grep -v "*/$" kind of answers since it would also exclude new directories. Command I am using: rsync -avh --delete /media/data/src /media/data/bkp And everytime it prints the list of all directories: src/dir1/ src/dir1/sdir1/ src/dir1/sdir2/ src/dir2/ ..... Thanks for your help. EDIT: Ok, after some intensive tests .. It doesn't print all directories when syncing from an ext4 partition to an ext4 and from NTFS to NTFS. It only does when syncing from ext4 to NTFS .. And options '-c' or '--omit-dir-times' don't change that.

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• Disable RDC Welcome Screen in Windows 2008 R2

  - by mikebridge

  Is there a way to disable or bypass the "Welcome" screen I see when I'm using RDC to log in to a machine using saved credentials? I have startup task which launches an RDP session automatically to localhost when the machine boots. This works, except that the remote desktop window stops and waits for an "OK" on the Welcome screen: MACHINENAME-A.B.C.D(Server ID:Console 0) Welcome [OK] This screen is preventing me from automating this login. Is there any way to get around it? EDIT: Here's the command line I'm currently using to launch it: start /min C:\windows\system32\mstsc.exe c:\rdp\ServiceRunner.rdp

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• difference between success and failed event in auditd/aureport

  - by user112358132134

  The aureport command has two options that limit the list of displayed events to those that were successful and those that failed. Per the man page: --failed Only select failed events for processing in the reports. The default is both success and failed events. --success Only select successful events for processing in the reports. The default is both success and failed events. What does this mean? Is the failure/success with regard to the actual event (e.g., a syscall that returned non-zero) or does the failure/success apply to auditd and whether or not there was an issue in processing the event?

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• User WinWget to keep web site alive in a Windows Server 2003

  - by Menelaos Vergis

  I have a site that must stay alive due to a service that runs and check a directory for changes. The site is running in IIS at a Windows Server 2003 and the solution I came up it that I will Schedule a task that requests the home page every 5 minutes. I am sure that this way the site will stay alive almost all the time. I have downloaded Wget from Wget from Windows and I have installed it at my windows server 2003 but I don't know how to use it in order to ping the server but not download anything. Since I want to use this forever I don't want to save anything on the disk, can you provide me with the command that pings a web page but don't save anything on the disk?

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• Remotely Managing Storage on Hyper-V 2012 Core

  - by Vazgen

  I have a core Hyper-V Server 2012 that I am remotely managing from a Windows 8 client. I can connect in Hyper-V Manager, Server Manager, and MMC. However, I don't understand how I can manage the physical hard drive (for ex, deleting vhdx files, creating folders, etc) from my Windows 8 client. I tried to attach the remote share as follows: q: \\MyServer\c$ It said command completed successfully, but I don't see the drive on my client's Explorer. I can get to it in cmd.exe on the client but how can I manage it in a GUI? explorer q: Throws error:

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• Black screen with cursor after BIOS screen

  - by Radio

  Here is a weird one, Got computer with Windows XP. It's getting stuck on a black screen with cursor blinking. What did I do: - Boot from installation CD (recovery option - command line): chkdsk C: /R copy D:\i386\ntdetect.com c:\ copy D:\i386\ntldr c:\ fixmbr fixboot Chkdsk showed 0 bad sectors and no problems during scan. dir on C:\ shows all directories and files in place (Windows, Program Files, Documents and Settings). BIOS shows correct boot drive. Still does not boot. Not sure what to think of. Please help. UPDATE: Just performed these steps: Backed up current disk C: (without MBR) using True Image to external hard drive Ran Windows XP clean installation with deleting all partitions and creating new one. Hard drive booted fine into Windows GUI installation!!! Then: I interrupted installation. Booted from True Image recovery CD and restored archive of disk C to an new partition. Same issue with black screen.

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• How come I cannot make this file executable (chmod permissions)?

  - by bappi48

  I downloaded Android Development Tool for linux (ADT) and placed it in home directory. After unzipping the files, when I double click the "eclipse" executable file; the eclipse works perfectly fine. But If I unzip the ADT in a different directory, in my case directory E: (is shown when I boot in windows 7) There double clicking the same "eclipse" executable file does not run eclipse. It shows error message: Could not display /media/Software/00.AndroidLinux/ADT/eclipse/eclipse. There is no application installed for executable files. Do you want to search for an application to open this file? If I press yes in the Dialog, it finds "Pypar2" which is not my solution. I found that the "eclipse" file permission is following -rw------- 1 tanvir tanvir 63050 Feb 4 19:05 eclipse I tried to change the permission by "chmod +x eclipse" , but no use. This command does not change the file permission at all in this case. what should I do? Relevant output of cat /proc/mounts: /dev/sda6 /media/Software fuseblk rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096 0 0 Please not that I'm new to Ubuntu and still learning day by day.

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• Windows 7 installer doesn't recognize NTFS partition.

  - by ifesdjeen

  Hi, I'm trying to install windows 7 on my Macbook. I've created NTFS partition, but when i'm starting up Windows 7 installation, it says that i can't install windows on this partition, since drive already contains maximum amount of partitions with this filesystem type. I haven't heard of any limits on filesystems, but still i can't even format this drive from Win7 installer. I've found access to command line from win7 installation CD, but i can't find fdisk there to format. Do you have any idea on about how to deal with it?

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• mysql Incorrect Information in File: (corrupt) error

  - by Nick M.

  I've recently suffered from a power outage on one of my monitoring servers at the office. The result of that outage caused for some database tables to get corrupted. I've successfully repaired 3-4 tables by using the "use_frm" option however there are still 3 that seem to be badly corrupted and are not responding to the mysql REPAIR command (with or without use_frm) mysql> REPAIR TABLE poller_item; +-------------------+--------+----------+---------------------------------------------- ------------+ | Table | Op | Msg_type | Msg_text | +-------------------+--------+----------+------------------------------------------------- ---------+ | cacti.poller_item | repair | Error | Incorrect information in file: './cacti/poller_item.frm' | | cacti.poller_item | repair | error | Corrupt | +-------------------+--------+----------+------------------------------------------------- ---------+ In this scenario are there any other way to repair a table? MySQL Version mysql Ver 14.14 Distrib 5.1.49, for debian-linux-gnu (x86_64) using readline 6.1

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• Grep /var/log for hacker/script kiddy activity and e-mail?

  - by Jason

  CentOS 6 Apache Server version: Apache/2.2.15 (Unix) Thinking about how to automatically, once a day, grep all the logs in /var/log/httpd for hacker, phishing, etc activity and e-mail it to myself so I can evaluate what I might need to do. But what are the patterns I can look for? IE, we dont run Wordpress and we see a lot of attempts to access Wordpress related content, obviously for an exploit. Same with PHPMyAdmin. I could do something like repeatedly, matching common patterns we see. # grep -r -i wp-content /var/log/httpd/ # grep -r -i php-my-admin /var/log/httpd/ How do I e-mail myself this the results of each grep command or better yet all Grep results in a single e-mail?

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• disable everything in update-motd.d dir in ubuntu server

  - by senzacionale

  mitjab@server:/etc/update-motd.d$ dir 00-header 10-help-text 91-release-upgrade 98-fsck-at-reboot 99-footer mitjab@server:/etc/update-motd.d$ i need to remove all auto updates or notifiers in my ubuntu server becouse it is to slow. How can i remove or disable it. Now when i login to server it takes 30s to see server when i write username and passwd. How can i disable all this.. if i run mitjab@server:/etc/update-motd.d$ update-motd --disable /usr/bin/python: can't find '__main__' module in '/usr/share/command-not-found'

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• What to do about "system running in low-graphics mode"?

  - by ubuntubabe

  My Dell which was 5 years old suddenly karked it and I had the "low graphics" black screen and useless dialogue box. As I believed it was a dead graphics card I went out and bought a brand new machine. I put aside the new machine and tried again in vain to open the Dell. I eventually got to the command line via Ctrl+Alt+F1. I logged into my account from there, and simply started a series of sudo apt-get remove of various softwares that I knew were installed on my PC (software without any great consequence like Google earth, tweak, Skype etc). Lo and behold after a sudo reboot my computer was fine again! So now I have 2 computers. BUT one week after buying the other one and installing 12.04 because I love Ubuntu, the SAME PROBLEM arrived! I once again deleted Google earth, Skype, and did a sudo reboot and everything worked as before. I think there is a bug or something in 12.04 as this problem has never arisen with any other versions of Ubuntu.

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• Textmate: Find and replace across project with contents of one file from said project

  - by griotspeak

  I have a regular expression to find the text I want (I wrapped the relevant section in custom tags), and I can do it by hand without much issue, but what I want is a way to automatically find and replace throughout the entire project. A macro seems like an OK idea, but it would be nice to have a command (to edit and tweak). sed seems like a good bet, but I am pretty unfamiliar with it. I am not so much asking for a complete solution as I am asking for an example that does something close to what I want. I don't really know of a good way to start.

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• Server installation logging / logbook / diary?

  - by The MYYN

  Are there some ways field-tested ways to keep a kind of logbook for a server? Including: software installations (and de-installations) custom configurations (e.g. of a webserver, ssh daemon, etc.) personal notes The big picture. I am preparing a server and would like to extensively document the state and how it was established over time, so that a new person can easily see, what's going on and why. The setup is not too complicated, but I would like to do it anyway. I once used something like Maintain /etc with mercurial on Debian and it was nice, but I am looking for a little more flexible solution. Addendum: So I am interested in logging and documentation first. In an ideal world however, I would like to have a command, which in a few steps would take me from a bare newly installed unix system to a functional environment with all the components setup and in place by the means of, say an 'executable' log. But that would be very ideal, I imagine.

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• Setting Events in Matlab/Simulink Stateflow

  - by GuiccoPiano

  How can I set an event in a Simulink Stateflow (statechart) based on some value. What I mean is this. I have a variable called "choice". This "choice" comes in as an input from a simulink block.The value of choice is between 1 and 4. So all I want to do is this: if choice == 1 then trigger/set eventBlue if choice == 2 then trigger/set eventRed if choice == 3 then trigger/set eventWhite if choice == 4 then trigger/set eventGreen else trigger/set eventYellow So how do i do that? what is the command?

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