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  • Powerline Networking messages

    - by Griffo
    I happened to fire up Console.app today and found lots of these messages in the log: 13/12/2011 22:54:09.291 de.devolo.networkservice: [pktifc] write: Device not configured They are being generated 8 times every 5-second interval. My network is setup as shown in the attached diagram where there are two Devolo powerline network adapters connecting the wireless access point upstairs to my modem/wifi access point/dhcp server device downstairs. I want to know what these messages mean, whether they are a problem and if so, how to solve it.

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  • VM image including ready-to-use Kerberos server?

    - by Nicolas Raoul
    I implemented client-side Kerberos support to an open source software, and I want to test it. I don't have a Kerberos network at home and unfortunately don't have the skills/time to reliably set up one. Is there a Virtual Machine image that I could fire up, and that would include a properly working Kerberos environment, so that I can test my client app? (freely downloadable Linux/Microsoft/anything all acceptable)

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  • On the fly volume compression (waveform capping) for VLC or OS X

    - by Grammar Nazi
    I'm looking to impose a hard limit on a movie. In particular when I have earbuds in and a reasonable volume set, loud or sudden sounds (gun shot, dramatic sound effects, gun fire, etc) are loud enough to hurt. Lowering the volume makes speech and other sounds hard to hear. Is there a third party on-the-fly solution for this, or a plug-in for VLC that I can use?

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  • Linux Kernel Driver for video capture

    - by Stoopkid
    I have this EasyCap video capture thing with a USBTV007 chip and I really would like to get it working on my little linux mint 17 laptop so that I can capture video for my RC stuff. But I do not know what to do with this linux kernel driver. I don't even know how to get these files, I assume it is something like git. http://linuxtv.org/wiki/index.php/Easycap#USBTV007_EasyCAP I am looking for a beginner friendly explanation on what to do with this: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/media/usb/usbtv

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  • Help Selecting The Best WebHost

    - by Joshua
    Can anyone recommend a user-friendly (I'm new to website development) and inexpensive web host (my websites are simple and small, so no need for a beef-eating server) that will allow me write access to the file system from PHP? My current web host won't allow me to write to the file system, and keeping everything in the database is slow, and a pain.

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  • Video Resources to learn Ubuntu

    - by Samy
    I'm starting to learn how to run a server and decided to learn Ubuntu as I was told it's the most newbie friendly. Can the more experienced folks here suggest some good video resources to learn Ubuntu that helped you when you were starting out? I'm a total newbie to server management and only have software experience. Thanks

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  • stop-play-pause-button-opening-itunes-in-snow-leopard

    - by hotsawz
    First time on here so forgive me if this is incorrect etiquette but I found this post that has been answered but I have a better solution. As the post was answered I could not post on there. The solution is simple. Pressing Option + Shift + (media keys) does not fire up / alert iTunes. I've tried it with VLC and Spotify on an external keyboard with media keys and it works fine.

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  • Sysadmin 101: How can I figure out why my server crashes and monitor performance?

    - by bflora
    I have a Drupal-powered site that seems to have neverending performance problems. It was butt-slow about 5 months ago. I brought in some guys who installed nginx for anonymous visitors, ajaxified a few queries so they wouldn't fire during page load, and helped me find a few bottlenecks in the code. For about a month, the site was significantly faster, though not "fast" by any stretch of the word. Meanwhile, I'm now shelling out $400/month to Slicehost to host a site that gets less than 5,000/uniques a day. Yes, you read that right. Go Drupal. Recently the site started crashing again and is slow again. I can't afford to hire people to come in, study my code from top to bottom, and make changes that may or may not help anymore. And I can't afford to throw more hardware at the problem. So I need to figure out what the problem is myself. Questions: When apache crashes, is it possible to find out what caused it to crash? There has to be a way, right? If so, how can I do this? Is there software I can use that will tell me which process caused my server to die? (e.g. "Apache crashed because someone visited page X." or "Apache crashed because you were importing too many RSS items from feed X.") There's got to be a way to learn this, right? What's a good, noob-friendly way to monitor my current apache performance? My developer friends tell me to "just use Top, dude," but Top shows me a bunch of numbers without any context. I have no clue what qualifies as a bad number or a good number in Top, or which processes are relevant and which aren't. Are there any noob-friendly server monitoring tools out there? Ideally, I could have a page that would give me a color-coded indicator about how apache is performing and then show me a list of processes or pages that are sucking right now. This way, I could know when performance is bad and then what's causing it to be so bad. Why does PHP memory matter? My apparently has a 30MB memory foot print. Will it run faster if I bring that number down? Thanks for any advice. I spent a year or so trying to boost my advertising income so I could hire a contractor to solve my performance woes. I didn't want to have to learn all this sysadmin voodoo. I'm now resigned to the fact that might not have a choice.

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  • Who is a good registrar these days?

    - by jedberg
    It's been a long time since I've had to register a new domain. What registrar is considered geek and sysadmin friendly? I've heard that godaddy will screw you 10 ways to Sunday, and a lot of the other ones basically only lease you the domain. So if I want to own the domain and not get screwed, who's the best these days, and why?

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  • point multiple domain to single web hosting account

    - by suriyan suresh
    point multiple domain to single web hosting account using htaccess i have used the following .htaccess file in my public_html directory RewriteEngine on RewriteCond %{HTTP_HOST} ^site1.org$ [OR] RewriteCond %{HTTP_HOST} ^www.site1.org$ RewriteRule ^/?$ "/site1.org\/" [R=301,L] directory structure /public_html/site1.org/welcome.html if i typed site1.org redirection works perfect but the URL will be http://site1.org/site1.org/welcome.html instead of http://site1.org/welcome.html and the URL will be SEO Friendly

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  • Set default wireless adapter

    - by Evan Kroske
    I just acquired a Wi-Fire long-range wi-fi adapter, and I would like to test it with my Ubuntu desktop computer. However, my machine defaults to using a built-in wireless card. How can I set my new wireless adapter as the default wireless connection? How can I disable my internal wireless card (without opening my computer case)?

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  • I need Internet Security software with following properties

    - by Eias.N
    Hello ,, I want to own an Internet Security software , but I prefer that it has following properties : Not a heavy one that killing the machine (Like Norton) . Delete the viruses , and don't keep it after clean it . The most important off all : Has an Offline databases that Can I download and add to program database without connecting to Internet (Not Like KIS 2010) Containing (anti spam -anti Virus - Fire wall - ....... ) So what is in your mind?(Don't tell me AVG I tested it)

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  • DNS cache-on-demand server in Win7

    - by Andrew Heath
    I live in a country that enjoys manipulating DNS entries for fun and profit. For various reasons, I cannot surf with a VPN running 100% of the time. Because some sites are only blocked via DNS spoofing, it would be very handy if I could run a local DNS server that I could update on command during active VPN sessions. Is this granularity possible on Win7? Most of the DNS server related posts on SU are regarding the more config-friendly Linux platforms...

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  • Unlimited online backup space for fixed price using rsync/FTP/other simple protocol

    - by barrycarter
    Many companies offer unlimited online backup space for a fixed price (mozy.com, twitter.com/allmydata, onlinestoragesolution.com, etc), but they either use proprietary non-Linux-friendly software and/or have gone out of business and/or don't actually work. Who offers reliable unlimited online backup space for a fixed price that's compatible with rsync, FTP, or other generic/open source file transfer protocols? Or, has anyone written software that lets me treat Mozy's/etc space as though it were regular file space (eg, "mozyfs"?)

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  • Use Seagate hard drive for both mac and windows

    - by Nick LaMarca
    I recently bought a seagate for mac 1tb external hard drive. When I connect to my macbook through the fire wire it works fine, but I also have media on my dell laptop which is running vista. When I connect the hard drive to that laptop using the usb cable vista doesnt recognize it. What am I doing wrong?

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  • Use Seagate hard drive for both mac and windows

    - by Nick LaMarca
    I recently bought a seagate for mac 1tb external hard drive. When I connect to my macbook through the fire wire it works fine, but I also have media on my dell laptop which is running vista. When I connect the hard drive to that laptop using the usb cable vista doesnt recognize it. What am I doing wrong?

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  • ffmpeg help converting

    - by ellman121
    so I've been trying to reencode a .mp4 video I have into a .avi so my cousin can use it on his Windows machine. He's not very tech-savvy, and doesn't want to deal with downloading any new programs to open .mp4 videos, but thats beside the point. The current string I'm using is ffmpeg -i Courage.Under.Fire.1996.BRRip.H264.AAC.5.1ch.Gopo.mp4 -sameq -acodec copy -vcodec copy CourageUnderFire.avi It produces the video, however doesn't give me any audio. Any assistance?

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  • Watching a variable for changes without polling.

    - by milkfilk
    I'm using a framework called Processing which is basically a Java applet. It has the ability to do key events because Applet can. You can also roll your own callbacks of sorts into the parent. I'm not doing that right now and maybe that's the solution. For now, I'm looking for a more POJO solution. So I wrote some examples to illustrate my question. Please ignore using key events on the command line (console). Certainly this would be a very clean solution but it's not possible on the command line and my actual app isn't a command line app. In fact, a key event would be a good solution for me but I'm trying to understand events and polling beyond just keyboard specific problems. Both these examples flip a boolean. When the boolean flips, I want to fire something once. I could wrap the boolean in an Object so if the Object changes, I could fire an event too. I just don't want to poll with an if() statement unnecessarily. import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /* * Example of checking a variable for changes. * Uses dumb if() and polls continuously. */ public class NotAvoidingPolling { public static void main(String[] args) { boolean typedA = false; String input = ""; System.out.println("Type 'a' please."); while (true) { InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); try { input = br.readLine(); } catch (IOException ioException) { System.out.println("IO Error."); System.exit(1); } // contrived state change logic if (input.equals("a")) { typedA = true; } else { typedA = false; } // problem: this is polling. if (typedA) System.out.println("Typed 'a'."); } } } Running this outputs: Type 'a' please. a Typed 'a'. On some forums people suggested using an Observer. And although this decouples the event handler from class being observed, I still have an if() on a forever loop. import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Observable; import java.util.Observer; /* * Example of checking a variable for changes. * This uses an observer to decouple the handler feedback * out of the main() but still is polling. */ public class ObserverStillPolling { boolean typedA = false; public static void main(String[] args) { // this ObserverStillPolling o = new ObserverStillPolling(); final MyEvent myEvent = new MyEvent(o); final MyHandler myHandler = new MyHandler(); myEvent.addObserver(myHandler); // subscribe // watch for event forever Thread thread = new Thread(myEvent); thread.start(); System.out.println("Type 'a' please."); String input = ""; while (true) { InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); try { input = br.readLine(); } catch (IOException ioException) { System.out.println("IO Error."); System.exit(1); } // contrived state change logic // but it's decoupled now because there's no handler here. if (input.equals("a")) { o.typedA = true; } } } } class MyEvent extends Observable implements Runnable { // boolean typedA; ObserverStillPolling o; public MyEvent(ObserverStillPolling o) { this.o = o; } public void run() { // watch the main forever while (true) { // event fire if (this.o.typedA) { setChanged(); // in reality, you'd pass something more useful notifyObservers("You just typed 'a'."); // reset this.o.typedA = false; } } } } class MyHandler implements Observer { public void update(Observable obj, Object arg) { // handle event if (arg instanceof String) { System.out.println("We received:" + (String) arg); } } } Running this outputs: Type 'a' please. a We received:You just typed 'a'. I'd be ok if the if() was a NOOP on the CPU. But it's really comparing every pass. I see real CPU load. This is as bad as polling. I can maybe throttle it back with a sleep or compare the elapsed time since last update but this is not event driven. It's just less polling. So how can I do this smarter? How can I watch a POJO for changes without polling? In C# there seems to be something interesting called properties. I'm not a C# guy so maybe this isn't as magical as I think. private void SendPropertyChanging(string property) { if (this.PropertyChanging != null) { this.PropertyChanging(this, new PropertyChangingEventArgs(property)); } }

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  • Bookshelf viewer for Windows

    - by kokbira
    Once upon a time I used a Linux distro (I don't remember which one) and I could see files and folders in an interesting viewer mode: a bookshelf. I'm searching a software for Windows that does that, but I don't found it yet. I found that ones: FilePro Windirstat They do the work well, but I would like a more-friendly interface, more like a real bookshelf :) - i.e., not a common sequoia viewer AlternativeTo mentioned software.

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  • How to enable remote desktop view in windows 7 ?

    - by Ravi shankar
    Hi, I am trying to connect to a tight VNC server for remote desktop view. Its working fine when VNC server is running in XP PC but I am not able to connect remotly when VNC server is running in windows 7 PC. I am also able to connect to localhost in windows 7. I have turn off windows fire wall and other anti virus.

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  • What is the current state of Ubuntu's transition from init scripts to Upstart? [migrated]

    - by Adam Eberlin
    What is the current state of Ubuntu's transition from init.d scripts to upstart? I was curious, so I compared the contents of /etc/init.d/ to /etc/init/ on one of our development machines, which is running Ubuntu 12.04 LTS Server. # /etc/init.d/ # /etc/init/ acpid acpid.conf apache2 --------------------------- apparmor --------------------------- apport apport.conf atd atd.conf bind9 --------------------------- bootlogd --------------------------- cgroup-lite cgroup-lite.conf --------------------------- console.conf console-setup console-setup.conf --------------------------- container-detect.conf --------------------------- control-alt-delete.conf cron cron.conf dbus dbus.conf dmesg dmesg.conf dns-clean --------------------------- friendly-recovery --------------------------- --------------------------- failsafe.conf --------------------------- flush-early-job-log.conf --------------------------- friendly-recovery.conf grub-common --------------------------- halt --------------------------- hostname hostname.conf hwclock hwclock.conf hwclock-save hwclock-save.conf irqbalance irqbalance.conf killprocs --------------------------- lxc lxc.conf lxc-net lxc-net.conf module-init-tools module-init-tools.conf --------------------------- mountall.conf --------------------------- mountall-net.conf --------------------------- mountall-reboot.conf --------------------------- mountall-shell.conf --------------------------- mounted-debugfs.conf --------------------------- mounted-dev.conf --------------------------- mounted-proc.conf --------------------------- mounted-run.conf --------------------------- mounted-tmp.conf --------------------------- mounted-var.conf networking networking.conf network-interface network-interface.conf network-interface-container network-interface-container.conf network-interface-security network-interface-security.conf newrelic-sysmond --------------------------- ondemand --------------------------- plymouth plymouth.conf plymouth-log plymouth-log.conf plymouth-splash plymouth-splash.conf plymouth-stop plymouth-stop.conf plymouth-upstart-bridge plymouth-upstart-bridge.conf postgresql --------------------------- pppd-dns --------------------------- procps procps.conf rc rc.conf rc.local --------------------------- rcS rcS.conf --------------------------- rc-sysinit.conf reboot --------------------------- resolvconf resolvconf.conf rsync --------------------------- rsyslog rsyslog.conf screen-cleanup screen-cleanup.conf sendsigs --------------------------- setvtrgb setvtrgb.conf --------------------------- shutdown.conf single --------------------------- skeleton --------------------------- ssh ssh.conf stop-bootlogd --------------------------- stop-bootlogd-single --------------------------- sudo --------------------------- --------------------------- tty1.conf --------------------------- tty2.conf --------------------------- tty3.conf --------------------------- tty4.conf --------------------------- tty5.conf --------------------------- tty6.conf udev udev.conf udev-fallback-graphics udev-fallback-graphics.conf udev-finish udev-finish.conf udevmonitor udevmonitor.conf udevtrigger udevtrigger.conf ufw ufw.conf umountfs --------------------------- umountnfs.sh --------------------------- umountroot --------------------------- --------------------------- upstart-socket-bridge.conf --------------------------- upstart-udev-bridge.conf urandom --------------------------- --------------------------- ureadahead.conf --------------------------- ureadahead-other.conf --------------------------- wait-for-state.conf whoopsie whoopsie.conf To be honest, I'm not entirely sure if I'm interpreting the division of responsibilities properly, as I didn't expect to see any overlap (of what framework handles which services). So I was quite surprised to learn that there was a significant amount of overlap in service references, in addition to being unable to discern which of the two was intended to be the primary service framework. Why does there seem to be a fair amount of redundancy in individual service handling between init.d and upstart? Is something else at play here that I'm missing? What is preventing upstart from completely taking over for init.d? Is there some functionality that certain daemons require which upstart does not yet have, which are preventing some services from converting? Or is it something else entirely?

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  • how to learn visio?

    - by user285825
    I used rational rose for UML diagramming. It seemed to be very user-friendly and intuitive. But this visio this is seems so awful. It is not intuitive at all. And I am getting what I am expecting. How to learn more about visio 2007?

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