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  • How to disable autocmd or augroup in vim?

    - by Andrew Vit
    Given I have a group of commands such as: augroup MyGroup autocmd CursorMoved * silent call MyCommandOne() augroup END I want to disable all the autocommands in MyGroup for a time and then re-enable it later. Is there anything I can do with the group? Specifically, is there a way to disable the whole group at once? If not, what can I do to disable individual commands? Looking at the help, I only see a few options: augroup! will delete the whole group: I don't think this is right since I will want to re-enable it again. (But maybe there's a way to easily redefine the group again?) :noautocmd will only disable the callbacks for a one-off invocation of a command. (And it disables all autocmds, not specified ones) eventignore addresses the event binding, not the command: it sounds like it disables all bound commands for a given event, not just one command or a group I can specify. How is this done?

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  • Shorewall SHOW DYNAMIC command doesn't work

    - by Andrew Burns
    Setting up shorewall dynamic zones, http://shorewall.net/Dynamic.html shows the command shorewall show dynamic zone where zone is one of your zones. I can get the add and delete commands to work, but not the show dynamic command. Here is a shell session, with output from ipset list that proves that the items are indeed there. $ ipset list CPREM_br0 Name: CPREM_br0 Type: hash:ip Header: family inet hashsize 1024 maxelem 65536 Size in memory: 16520 References: 66 Members: 192.168.85.153 $ shorewall add br0:192.168.85.200 CPREM Host br0:192.168.85.200 added to zone CPREM $ shorewall show dynamic CPREM $ ipset list CPREM_br0 Name: CPREM_br0 Type: hash:ip Header: family inet hashsize 1024 maxelem 65536 Size in memory: 16536 References: 66 Members: 192.168.85.153 192.168.85.200 $ shorewall delete br0:192.168.85.200 CPREM Host br0:192.168.85.200 deleted from zone CPREM $ ipset list CPREM_br0 Name: CPREM_br0 Type: hash:ip Header: family inet hashsize 1024 maxelem 65536 Size in memory: 16536 References: 66 Members: 192.168.85.153 I am using the packaged version from Ubuntu 12.04 (4.4.26.1-1)

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  • Windows 7 - You don't have permissions to save in this folder

    - by James
    Huh? I'm getting this message - "You don't have permissions to save in this folder" - even though I am the only user on this machine, and administrator. How can I set permissions for myself to do everything, everywhere (including saving deleting etc)? Thanks. Edit: Sorry, forgot to say which folder it was. It is a folder in Program Files, where I save my PHP files for local testing. Sorry if Im a bit daft with all this, but I've upgraded straight from XP to 7, and having never used vista, I'm used to being allowed to have full control.

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  • Routing / binding 128 IPs to one server

    - by Andrew
    I have a Ubuntu server with 128 ip's (static external ips 86.xx.xx.16), and I want to crawl pages thru different ip's. The gateway is xx.xxx.xxx.1, the main ip is xx.xxx.xxx.16, and the other 128 ip's are xx.xxx.xxx.129/255. I tried this configuration in /etc/network/interfaces but I doesn't work. It work if I remove the gateway for the aliases eth0:0 and eth0:1. I think this is routing problem. auto lo iface lo inet loopback auto eth0 auto eth0:0 auto eth0:1 iface eth0 inet static address xx.xxx.xxx.16 netmask 255.255.255.128 gateway xx.xxx.xxx.1 iface eth0:0 inet static address xx.xxx.xxx.129 netmask 255.255.255.128 gateway xx.xxx.xxx.1 iface eth0:1 inet static address xx.xxx.xxx.130 netmask 255.255.255.128 gateway xx.xxx.xxx.1 Also, please tell me how to "reset" every changes that I made in networking and routing. Update: I removed the gateway and now it works. I can reach the website thru all 128 ip's. But when I try to bind a socket connection in php to a specific ip I get no answer. socket_bind($sock, "xx.xxx.xx.xxx"); socket_connect($sock, 'google.com', 80); I tryed to use a sniffer to see the packets, and I see the packet sent from binded ip to google.com but the "connection" can't be established. I don't know anything about "route" command, but I have a feeling that this is the solution.

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  • Automation Question using VMWare Workstation

    - by James K
    I'm running an experiment that requires me to create 100 instances of Windows XP w/SP3 and saving each VM instance off to a hard drive. I have to annotate the time that the VM load starts (starting my timer when I see the "Setup is preparing...") until the load ends when I see the final desktop after VM loads its drivers. I also have to annotate the host start and stop time. Is there any way this process can be automated? Each load runs me about 16:00 minutes and gets real tiresome after a time. BTW... Exact timing is not necessary, eyeballing as described above is sufficient for my testing needs.

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  • My 4 GB microSD card only allows me to use 1 GB

    - by James Litewski
    My phone came with a 4 GB microSD card. On the card it lists that 3 GB goes to Muve Music which is Cricket's music program, and I get 1 GB... Well, I don't pay for Muve Music, so why waste the space? I thought I'd be able to simply buy an adapter and reformat the microSD card to get the full 4 GB; but that wasn't the case... I could only find the 1 GB partition on the card. I even tried reformatting the disk, but I had no luck. How can I get the full 4 GB? BTW, I'm running Mac OS X v10.7 (Lion).

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  • Is is possible to hide label colors in list view in Mac OS 10.X Finder? I use labels as star ratings

    - by Andrew Swift
    I have modified the first five label names in OS X Lion to be ? through ?????. This way I can easily tag photos etc. in the finder. However, I find that Apple's rendering of the colored bars is horrendously ugly. I'd like to keep the labels (to be able to sort by label) but not see the colors. I know it was possible to change the colors with Label X, but Unsanity has not issued an update for Lion. I don't need to change the colors, just find a way to hide them in the finder.

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  • nginx redirect proxy

    - by andrew
    I have a web app running on a nginx server on local ip 192.168.0.30:80 I have this in my etc/hosts 127.0.0.1 w.myapp.in If someone accesses my app using a "w" subdomain, it shows a webdav interface, otherwise it runs normally (for example, someone calls http://myapp.in , it goes into the app, and http://w.myapp.in goes into webdav interface - this is done within the app, nginx has nothing to do with it) Because I don't have a dns or anything like that, users must access the app by ip. A problem appears if someone wants to access the webdav interface, because you cannot access the app by a subdomain - unless you write a line in your local hosts file, which is not a solution) A possible solution If it's possible to setup the nginx server so that if someone calls http://192.168.0.30 (on port 80), it goes normally into the app, but if a user tries to access say http://192.168.0.30:81 (another defined port) it redirects internally to w.myapp.in, and the app sees the subdomain Given the app, can this be done? If yes, what should I put in the nginx config file? And if you guys think of a better solution, I'm open to any.

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  • Why does Windows share permissions change file permissions?

    - by Andrew Rump
    When you create a (file system) share (on windows 2008R2) with access for specific users does it changes the access rights to the files to match the access rights to the share? We just killed our intranet web site when sharing the INetPub folder (to a few specified users). It removed the file access rights for authenticated users, i.e., the user could not log in using single signon (using IE & AD)! Could someone please tell me why it behaves like this? We now have to reapply the access right every time we change the users in the share killing the site in the process every time!

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  • How to test if DNS information has propagated?

    - by Andrew
    I set up a new DNS entry for one of my subdomains (I haven't set up any Apache virtual hosts or anything like that yet). How can I check that the DNS information has propagated? I assumed that I could simply ping my.subdomain.com and assume that if it could resolve, it would show the IP address I specified in the A record. However, I don't know if I am assuming correctly. What is the best way to check this information?

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  • PC doesn't power up anymore

    - by Andrew
    I will tell you the story behind the problem. The computer needed to be reinstalled, it has 2 HDDs so I had to un-plug one to see which is which, to save as much data as possible. After unplugging the first one, it booted with the reinstallation CD, it wasn't the HDD I was looking for so I turned it off and unplugged the other one. After unplugging and turning on, right after booting test, the HDD was turned off, only the CPU fan was working. Turned it off with the power supply's button help, holding the power button didn't do it. And now it doesn't want to turn on anymore. I tried with another test power supply but the result is the same, doesn't want to turn on. Any idea?

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  • No boot device found. Press any key to continue

    - by Andrew Banks
    I took out the hard drive from my Dell Latitude E5420 notebook, put in an ADATA S599 solid state drive, and installed Ubuntu 11.10. When I boot, the Dell BIOS splash screen appears with a progress bar, which quickly fills up, and the screen goes black. All of this is like it was before. At this point, the OS splash screen should fade in. Instead, I was dismayed to see simply the following, in white text on a black screen: No boot device found. Press any key to continue After looking around for the Any key (just kidding) I press a key, and the Dell BIOS splash screen appears again with a progress bar, which quickly fills up, and the screen goes black. This time, however, the Ubuntu splash screen shows up, Ubuntu opens up, and all is normal. Every time I shut down, however, this happens again. It's like a game the computer and I play together. The computer has never started up without first saying: No boot device found. Press any key to continue and it has always started up after I press any key to continue. It also starts up fine if I click Restart instead of Shut Down. Thoughts?

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  • Windows 7 Locking Executable Files

    - by James Burgess
    Since I've been using Windows 7 RTM (as opposed to the Beta and RCs), I've been having a peculiar issue with executable files. I first noticed it whilst using Visual Studio, in that when building a project, it would often fail saying that the output file was locked - but the problem has stemmed further. When I've executed an application, closed it (cleanly), and attempted to delete/move/rename/overwrite said file, Windows 7 tells me that the file is locked/access is denied. I've made use of software like LockHunter/Unlocker but it is seemingly unable to remove these locks (most of the time, it shows no locks at all). After about 5-10 minutes, the respective files are unlocked again, but needless to say this is a bit of a workflow-breaker (as it's not simply constrained to VS). I've done the usual tasks of virus/malware scanning, and turned up with absolutely nothing. I've got no peculiar services running, and the problem was not present before I installed a Windows 7 RTM version. Any help is greatly appreciated.

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  • Is this a valid backup strategy for MongoDB?

    - by James Simpson
    I've got a single dedicated server with a MongoDB database of around 10GB. I need to do daily backups, but I can't have downtime with the database. Is it possible to use a replica set on a single disk (with 2 instances of mongod running on different ports), and simply take the secondary one offline and backup the data files to an offsite storage such as S3 (journaling is turned on)? Or would using master/slave be better than a replica set? Is this viable, and if so, what potential problems could I have? If not, how do I conceptualize this to work?

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  • Backup files from Linux client to Windows Server

    - by Andrew
    I'm trying to backup my files from my Linux box to my Windows Server 2008 as a push, and when I delete them from my Linux box, they remain on my Windows Server. I've found lots of sources that are similar, but most results were from Windows to Linux. I managed to find slightly more similar cases like Using rsync and cygwin to Sync Files from a Linux Server to a Windows Notebook PC, and rsync from Windows PC to remote Linux server, with the most similar being a backup from Linux to Windows Server, but through a pull from the Windows Server. Initially, I used Unison because I thought having the 2-way capability would come in handy, and I would just have to set some configurations to make it 1-way. Unfortunately, I couldn't find the right configuration, and only managed to synchronize using the command unison "profile" -ui text -auto -silent. When I deleted the files on my Linux box, the files in the Server got deleted too, which of course, isn't what I want. When I tried to find any options for Unison, I only discovered the -force option, which didn't help, since what I wanted was an incremental update to the Server. I found out I could achieve this from using rsync and the -a option (archive), which would keep adding files even if I deleted them from my Linux box. I installed Cygwin on my Windows Server, configured an SSH daemon, but I can't seem to get it working. I've also already configured Windows Firewall to open port 22 (both inbound and outbound). I used the following command from my Linux box: rsync -avrzn /folder/to/be/backed/up/ [email protected]:/cygdrive/c/place/to/store/backed/up/files (a - archive, v - verbose, r - recurse into subdirectories, z - compress, n - dryrun) but it just won't work. Can anyone help me out? I don't mind using either Unison or rsync, as long as it achieves what I want.

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  • Windows 7 System File Checker (sfc) not working

    - by Andrew
    I have a strange problem with Windows 7 RTM. I'm running Ultimate 64-bit edition. Whenever I run sfc /scannow I get this error: Windows Resource Protection could not start the repair service. My research so far has told me that I need to set the Windows Module Installer and Windows Installer services' startup types to Manual. They already were, so I manually started those services and tried again. No luck. I've even booted into my Windows 7 repair disc and tried running sfc /scannow from that. All I get is this: A repair operation is already pending. Restart and try again. History: I'm trying to run sfc because I am unable to open any images in Windows Photo Viewer. Whenever I try, I get the error "Class not registered." I believe the problem started after I installed Gladinet, but I can't be sure. I've uninstalled Gladinet, but the problem remains. System Restore was disabled (yes, I know I'm stupid - you don't have to remind me). Please help. Thanks.

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  • Disable Certain Firefox Plugins System-wide by Default

    - by Andrew Case
    I have firefox installed system-wide for all our users. Unfortunately the Adobe Reader Plug-in is rather flakey and doesn't work some of the time. As a result I want to disable the plug-in by default for all our users, but still allow them to enable it if they want via the standard Tools-Add-ons-Plug-ins menu option. How can I have this plug-ins enabled/disabled status be disabled by default? I've been able to configure system-wide configurations before by setting preferences in the mozilla root folder file defaults/pref/all.js, but enabled/disabled plugins doesn't appear to be configured in the preferences. [edit 1]: I found 'How to manage firefox plugins in pluginreg.dat file' which explained some of the formatting of the pluginreg.dat file. From there I could see flags are masked as follows (from nsPluginHostImpl.h): #define NS_PLUGIN_FLAG_ENABLED 0x0001 // is this plugin enabled? #define NS_PLUGIN_FLAG_OLDSCHOOL 0x0002 // is this a pre-xpcom plugin? #define NS_PLUGIN_FLAG_FROMCACHE 0x0004 // this plugintag info was loaded from cache #define NS_PLUGIN_FLAG_UNWANTED 0x0008 // this is an unwanted plugin #define NS_PLUGIN_FLAG_BLOCKLISTED 0x0010 // this is a blocklisted plugin But is there a way to add this to the defaults so that that NS_PLUGIN_FLAG_ENABLED is removed by default?

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  • Difficult to point-and-click target with Apple Magic Trackpad?

    - by Andrew Swift
    My Magic Trackpad is great for most things involving dragging and gestures, but for simple point-and-click use it is starting to get really annoying. For example, my bank has a numeric code that I need to enter from a visual grid on the screen, by clicking on the six numbers in order. To do this is quite difficult with the Magic Trackpad. Idea 1: it is because when you start dragging on the touchpad, there is a brief delay before the mouse starts to move. The delay might be enough to screw up my anticipation of where the cursor is going to go. Idea 2: it may have to do with the cursor acceleration. If I move it a little, the cursor moves a little. If I move it a lot, it goes much faster. I have tried various settings in the preference pane, and although the cursor does move more or less quickly, it doesn't seem any more or less easy to hit a given target. As I am writing this post, I tried a brief experiment -- I chose a spot on the page (the bracket in the superuser logo) and tried to move the cursor there in one quick movement. It's extremely difficult, even though I've been using Macs and touchpads since 1999. There is something about the behavior of the trackpad that is making it impossible for me to learn how to accurately predict where the cursor will end up. Does anyone else have this problem?

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  • Choosing a home network layout

    - by James M.
    I have a server, 4 PC's, a network printer, a switch and an ADSL modem. Currently the server runs Red Hat 9 and sits between the internet and the other PCs like in http://upload.wikimedia.org/wikipedia/en/1/12/Sample-network-diagram.png I have bought a new server PC to replace the old one, and I plan to install Fedora Core linux on it. The server acts as web and file server. The PCs all run Windows. Alternatively, I could connect the new server and all PCs to the switch, and connect the switch to the modem. (Sorry, couldn't find an image.) What are the pros and cons of these network layouts? Eg. in terms of reliability, security and flexibility? I am not a Linux guru but know of (and am not afraid of) iptables, dhcpd et al. Thank you for any tips, pointers and links.

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  • Macbook Pro 2.2ghz 2011 (OSX 10.6.7) problem with NTFS 3G

    - by James
    I installed NTFS 3G but now get the following error message when I try to plug in my external drive. I also get it on startup about my Windows partition. Uninstall/ reinstall does not work. NTFS-3G could not mount /dev/disk1s1at /volumes/freeagent GoFlex Drive because the following error occured: /library/filesystems/fuse.fs/support/fusefs.kext failed to load- (libkern/kext) link error; check the system/ kernel logs for errors or try kextutil(8). The MacFUSE file system is not available (71) Any help would be great. I'd hope to avoid reinstalling OS X if possible!

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  • How do I properly dual boot Ubuntu and Windows 7 on an UEFI system?

    - by S. Robert James
    I have an HP Z210 with Windows 7, which is UEFI based. I'd like to dual boot it to Ubuntu 11.10 with GRUB2, but am having problems due to the UEFI. The install CD goes to the end, but then the machine always boots right into Windows. These problems are apparently documented (here and here), but there's no consensus as to what the simplest solution is. Any recommendations? I want Ubuntu and Windows to both be bootable. (Perhaps if I knew more about UEFI and its system partition, and how it differs from BIOS and MBR, I'd be in a better position. So background answers explaining how UEFI loads up are very appreciated.)

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  • How to install/configure ffmpeg to compress mp4 videos for flash player delivery?

    - by Andrew Fulton
    We have a flash web-app that created interactive video, and are using ffmpeg to do some compression/resizing when a user "publishes" their project. The user can upload flv files and mp4 files, both of which play fine in the Flash UI before publishing. After publishing the flv files work fine, but the mp4 files will not play in the flash player: Audio will play but video won't. The mp4 files will play fine if I download them and play them in the Quicktime player but if I attempt to open them in the Adobe Media Player it reports "The media file does not contain a supported video track". If I open the Movie inspector in quicktime it tells me that the original file is an "h264" video and the ffmpeg-processed ones are "mpeg-4". I have tried forcing it to h264 by adding flags like -f h264 and -vcodec h264 but I get a screenfull of errors (no frame, illegal POC type, sps_id out of range) ending with Could not find codec parameters (Video: h264) h264 will show up if I run ffmpeg -formats and ffmpeg -codecs, and as I said it will play fine in Quicktime. Is there anything else I need to do to convince the flash player to play them? Is there anything else I need to tell you about the server that will help?

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  • What are some general tips to make InnoDB for MySQL perform at its highest?

    - by James Simpson
    I've been using MyISAM exclusively for several years now and know the ins-and-outs pretty well of how to optimize it, but I've just recently started using InnoDB for some of my tables and don't know that much about it. What are some general tips to help improve the performance of these InnoDB tables (they were converted from MyISAM and have anywhere from 100k - 2M rows and most won't use transactions).

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