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  • Disabling networkmanager for a specific interface

    - by bdonlan
    I'd like to do some experimentation with hostap without disabling my primary wireless interface. How do I tell networkmanager to keep its hands off a specific interface or interfaces while allowing it to continue managing all other interfaces normally? I'm using Ubuntu 9.04. (Wasn't sure if this should go on superuser or serverfault, as networkmanager isn't much of a 'server' tool - if it belongs on serverfault please feel free to move it) Edit: I've tried adding this to /etc/network/interfaces: allow-hotplug wlan2 iface wlan2 inet static address 192.168.49.1 netmask 255.255.255.0 But this has no apparent effect, even after restarting NetworkManager. Here's my /etc/NetworkManager/nm-system-settings.conf: [main] plugins=ifupdown,keyfile [ifupdown] managed=false Edit[2]: Looks like I needed to restart nm-system-settings, then NetworkManager.

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  • How to run Firefox jailed without serious performance loss?

    - by Vi
    My Firefox configuration is tricky: Firefox runs at separate restricted user account which cannot connect to main X server. Firefox uses Xvfb (virtual "headless" X server) as X server. x11vnc is running on that Xvfb. On the main X server there is vncviewer running that connect to this x11vnc On powerful laptop (Acer Extensa 5220) it seems to work more or less well, but on "Acer Aspire One" netbook it is slowish (on a background that firefox is loaded with lots of extensions). How to optimise this scheme? Requirements: Browser cannot connect to main X server. Browser should be in chroot jail (no "suid" scripts, readonly for many things) Browser should have a lot of features (like in AutoPager, NoScript, WoT, AdBlockPlus)

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  • PHP Websites: Very high IOPS

    - by Khuram
    We are hosting a set of websites on VM Cloud. These sites were previously on a couple of dedicated servers but to enhance performance, we transferred them onto a Cloud environment. The Cloud has SSD storage but they are now saying that we have very high IOPS and are goign to degrade us if we do not do anything soon. We have good PHP Websites but they are run without any Caching. how do I start to debug this? Sincerely, Khuram

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  • Sign multiple domains with single Domain Key (dk-filter)

    - by Lashae
    Motivation The private shopping website GILT, send periodical update emails from giltgroupe.bounce.ed10.net however all of the mails are signed with domain keys of giltgroupe.com. mailed-by giltgroupe.bounce.ed10.net signed-by giltgroupe.com My Story I couldn't manage to sign x.com with y.com 's domain key using dk-filter under Debian Lenny with postfix. If I try to init dk-filter service with following arguments: DAEMON_OPTS="$DAEMON_OPTS -d x.com,y.com -c nofws -k -i /var/dk-filter/internal_hosts -s /etc/dk-keys.conf" dk-filter service signs with domain x.com (d=x.com) If I change the daemon arg.s as following: DAEMON_OPTS="$DAEMON_OPTS -d x.com -c nofws -k -i /var/dk-filter/internal_hosts -s /etc/dk-keys.conf" then emails sent From y.com is not being signed. the dk-keys.conf file is as follows: *:/var/dk-filter/y.com/mail I managed to do same thing with DKIM, works perfect. However DK doesn't seem to work. I don't have any problem signing y.com's emails with y.com's key and x.com's emails x.com's key, which indicates there is no configuration problem. Do you have any experience/advice to make it possible to sign emails from multiple domains by a specific chosen domain?

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  • create video from jpg images using ffmpeg

    - by floppydisk
    I want to make short timelapse video using ffmpeg under ubuntu 12.04 LTS. I have a folder containing all images with names DSC_0000.jpg DSC_0001.jpg and so on. I found this question ffmpeg: create a video from images and I try to run the same command as mentioned there: ffmpeg -i DSC_%d.jpg -vcodec mpeg4 timelapse.avi and it fails with DSC_%d.jpg: No such file or directory I've also tried ffmpeg -i DSC_%04d.jpg -vcodec mpeg4 timelapse.avi and it fails with the same error And also for some reason my ffmpeg does not understand option -start_number, if I run ffmpeg -start_number 0 -i DSC_%d.jpg -vcodec mpeg4 timelapse.avi I get this error: Unrecognized option 'start_number' Failed to set value '0' for option 'start_number' I would appreciate any help

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  • Looking for a "light" compositing manager for GNOME

    - by detly
    I have an HP Pavilion DM3 (graphics is nVidia GeForce G105M), running Debian Squeeze with GNOME 2.30. My preference for DE is Gnome + Metacity + Nautilus. I'd like to use Docky, but it requires compositing. So I'm looking for a relatively "light" compositing manager. I realise that "light" is ambiguous, but I basically want something that won't chew through my notebook's batteries because of CPU or GPU usage. I know that Metacity is capable of compositing, but as far as I'm aware it's still testing. Some people report that it's smooth and lightweight, others claim that it eats up processor time. I've also seen references to a problem with nVidia, but no actual details. I'm not averse to Compiz, but I haven't used it before and I don't know what to expect in terms of "weight." And maybe there's something else I haven't heard of. So can anyone recommend anything? Or dispel my idea that Metacity is not the right tool for the job? (Originally posted on GNOME forums.)

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  • How to get an inactive RAID device working again?

    - by Jonik
    After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it. * Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0. # mount /opt mount: wrong fs type, bad option, bad superblock on /dev/md_d0, missing codepage or helper program, or other error (could this be the IDE device where you in fact use ide-scsi so that sr0 or sda or so is needed?) In some cases useful info is found in syslog - try dmesg | tail or so The RAID device appears to be inactive somehow: # cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md_d0 : inactive sda4[0](S) 241095104 blocks # mdadm --detail /dev/md_d0 mdadm: md device /dev/md_d0 does not appear to be active. Question is, how to make the device active again (using mdmadm, I presume)? (Other times it's alright (active) after boot, and I can mount it manually without problems. But it still won't mount automatically even though I have it in /etc/fstab: /dev/md_d0 /opt ext4 defaults 0 0 So a bonus question: what should I do to make the RAID device automatically mount at /opt at boot time?) This is an Ubuntu 9.10 workstation. Background info about my RAID setup in this question. Edit: My /etc/mdadm/mdadm.conf looks like this. I've never touched this file, at least by hand. # by default, scan all partitions (/proc/partitions) for MD superblocks. # alternatively, specify devices to scan, using wildcards if desired. DEVICE partitions # auto-create devices with Debian standard permissions CREATE owner=root group=disk mode=0660 auto=yes # automatically tag new arrays as belonging to the local system HOMEHOST <system> # instruct the monitoring daemon where to send mail alerts MAILADDR <my mail address> # definitions of existing MD arrays # This file was auto-generated on Wed, 27 Jan 2010 17:14:36 +0200 In /proc/partitions the last entry is md_d0 at least now, after reboot, when the device happens to be active again. (I'm not sure if it would be the same when it's inactive.) Resolution: as Jimmy Hedman suggested, I took the output of mdadm --examine --scan: ARRAY /dev/md0 level=raid1 num-devices=2 UUID=de8fbd92[...] and added it in /etc/mdadm/mdadm.conf, which seems to have fixed the main problem. After changing /etc/fstab to use /dev/md0 again (instead of /dev/md_d0), the RAID device also gets automatically mounted!

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  • Making libmagic/file detect .docx files

    - by Jonatan Littke
    As seen elsewhere, docx, xlsx and pttx are ZIPs. When uploading them to my web application, file (via libmagic andpython-magic) detects them as being ZIP. I store the contents of the file as a blob in the database, but naturally I don't want to trust the user with what kind of file type this is. So I would like to trust file for and automatically generate a filename during download. I know one can modify /etc/magic but the format (magic(5)) is way too complicated for me. I found a bug report on the issue at Debian bugs but since it's from 2008 it doesn't seem to be fixed any time soon. I guess my only other alternative is to indeed trust the user (but still store the contents as a blob) and only check the file extension based on the file name. This way I can disallow some extensions and allow others. And when the user re-downloads his file, he can have it in whatever way he uploaded it. But this solution is insecure if the file is shared with others, since you can simply rename the file to allow uploading it. Any ideas? Lastly, I found a list of magic numbers for docx etc, but I'm unable to convert these into the magic(5) format.

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  • Why does cifs asks for su rights to write any data into it?

    - by Denys S.
    I'm mounting a windows share as follows: sudo mount -t cifs //192.168.178.49/public -o users,username=name,dom=domain,password=pword /mnt/nas Then I'm trying to create a simple file with some basic text: touch /mnt/nas/me.txt And get an error, however, the file is created (contains 0B of data though): touch: cannot touch ‘me.txt’: Permission denied With sudo it works flawless. How can I allow my current user to write data to the share? Is there a mount option?

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  • Using Gentoo's `ebegin`, `eend` etc under Ubuntu

    - by Marcus Downing
    We're quite fond of the style of the ebegin, eend, eerror, eindent etc commands used by Portage and other tools on Gentoo. The green-yellow-red bullets and standard layout make for very quick spotting of errors, on what would otherwise be very grey command line output. #!/bin/sh source /etc/init.d/functions.sh ebegin "Copying data" rsync .... eend $? Producing output similar to: * Copying data... [ OK ] As a result we're using these commands in some of our common shell scripts, which is a problem for the people using Ubuntu and other linuxes. (linuces? linuxen? linucae? other distros) On Gentoo these functions are provided by OpenRC, and imported with functions.sh file (whose exact position seems to vary slightly). But is there a simple way of getting these commands on Ubuntu? In theory we could replace them all with dull echos, but we'd rather not?

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  • Mount "Macrium Reflect" on a partition, boot from there ?

    - by b e
    Can Macrium's Reflect recovery CD be mounted/used with GRUB ? If the cd can be 'put' (loaded/mounted/...) in a partition, then the only disc needed would be the actual recovery disc, which could be on an external hard drive, or even on the same machine in another partition, thus allowing on to recover using only what's on the machine itself. I have WXPpro and Xubuntu8.04 double mounted, really happy with them together, use each right now to fix problems with the other when they come up. Also have a partition for the Reflect CD, but I just can't get it to load from Grub, which would be great... Thanks for any thoughts, probably someone has already done this I know !

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  • Color Schemes don't look right in CLI vim

    - by person
    I was having a bit of trouble reading the dark red strings of Vim's default color scheme, so I decided to switch to a different one. http://code.google.com/p/vimcolorsch...kboard.vim?r=2 http://files.werx.dk/wombat.vim However, when I set my color schemes to these, not only do they not come out correctly (for example, comments are bright blue), but these 2 somehow come out looking exactly the same! Am I doing something wrong, or are these colors restricted in the terminal so default colors are being chosen?

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  • NFS confusion - writing many small files

    - by Antonis Christofides
    I have a Debian squeeze amd64 which is at the same time a NFS4 server and client (it mounts itself through NFS4). The local directory that leads directly to disk is /nfs4exports/mydir, whereas /nfs4mounts/mydir is the same thing mounted through NFS, using the machine's external IP address. Here is the line from fstab: 176.9.116.102:/mydir /nfs4mounts/mydir nfs4 soft 0 0 I have an application that writes many small files. If I write directly to /nfs4exports/mydir, it writes thousands of files per second; but if I write to /nfs4mounts/mydir, it writes 4 files per second or so. I can greatly increase speed if I add async to /etc/exports. (Writing a single large file to the NFS directory goes at more than 100 MB/s.) I am confused by the description of async in NFS. If my application accesses the local directory, system calls like write and close return even if caches have not been flushed to permanent storage. Apparently this is not true with NFS sync behaviour. However, with NFS async behaviour, even calls like fsync are ignored. Isn't it possible to work like local files, i.e. generally work asynchronously, but honour fsync and O_SYNC?

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  • Making "default saved" work with GRUB2...?

    - by baltusaj
    I just installed Moblin Operating System. It's using GRUB2. On my Ubuntu 8.04 GRUB 0.97 was being used in which i was using the default saved option comfortably. I found that with GRUB2 i should not edit /boot/grub/menu.lst directly but I did :) because my Moblin does not contain any /etc/default/grub where they say I should do the modification I want. So what I did is as following which did not work: default=saved timeout=1 #splashimage=(hd0,0)/boot/grub/splash.xpm.gz #hiddenmenu #silent title Moblin (2.6.31.5-10.1.moblin2-netbook) root (hd0,0) kernel /boot/vmlinuz-2.6.31.5-10.1.moblin2-netbook ro root=/dev/sda1 vga=current savedefault=1 title Pathetic Windows rootnoverify (hd0,1) chainloader +1 savedefault=0 By doing so I should have automatically switch between Moblin and Window at each boot but it's not working. Almost all the troubleshooters on internet are saying that I should enable the DEFAULT=save option in /etc/default/grub but I am unable to find this file. Any idea what else should I do? Thanks a lot Update: I used the equal to sign because by default my menu.lst had an entry as default=0. However, default 0, is also working fine. Moreover the menu.lst, i have is actually a symbolic link to ./grub.conf. I have also noticed that grub-intall and grub-set-default commands are not working.

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  • non greedy grep command on ubuntu?

    - by ChrisRamakers
    Hi all, I'm building a script which filters out all our translatables from our template system. the problem i'm facing is the occasion where 2 translatables are on one line. These are 2 example lines from a template file which both hold one or more translatables <img src="/captcha/generate.jpg" alt="[#Captcha#]" /> <span>[#Velden met een * zijn verplicht in te vullen#]</span> <button type="submit" name="frm_submit" class="right">[#Verzend#] And when i set loose the following regexp egrep "\[#(.*)#\]" . -Rohis I get this output [#Captcha#]" [#Velden met een * zijn verplicht in te vullen#]</span> <button type="submit" name="frm_submit" class="right">[#Verzend#] While the desired output is [#Captcha#] [#Velden met een * zijn verplicht in te vullen#] [#Verzend#]

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  • Iptables mark incoming packet - vpn routing

    - by Tom
    I have connected my home to my workplace for out of house backup reasons through openvpn. The connection is working nicely. At work I have 5 fixed IP addresses. Now I would like to assign one of these IP addresses to be forwarded to my home machine. I have confirmed packet arrival at my home machine with tcpdump. The problem is that my default route at home is NOT the tun0 (naturally), but eth0 to my own ISP. So I created a separate routing table to route my tun0 packets back to where they belong, but do not how to mark the incoming packet which arrive through tun0 with iptables, so I can drive them back. I do not want any port restrictions, but only what comes from tun0 should leave through tun0 thanks tom

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  • Solr startup script problem

    - by Camran
    I have installed solr and it works finally... I have now problems setting it up to start automatically with a start command. I have followed a tutorial and created a file called solr in the /etc/init.d/solr dir... Here is that file: #!/bin/sh -e # SOLR auto-start # # description: auto-starts solr engine # processname: solr-production # pidfile: /var/run/solr-production.pid NAME="solr" PIDFILE="/var/run/solr-production.pid" LOG_FILE="/var/log/solr-production.log" SOLR_DIR="/etc/jetty" JAVA_OPTIONS="-Xmx1024m -DSTOP.PORT=8079 -DSTOP.KEY=stopkey -jar start.jar" JAVA="/usr/bin/java" start() { echo -n "Starting $NAME... " if [ -f $PIDFILE ]; then echo "is already running!" else cd $SOLR_DIR $JAVA $JAVA_OPTIONS 2> $LOG_FILE & sleep 2 echo `ps -ef | grep -v grep | grep java | awk '{print $2}'` > $PIDFILE echo "(Done)" fi return 0 } stop() { echo -n "Stopping $NAME... " if [ -f $PIDFILE ]; then cd $SOLR_DIR $JAVA $JAVA_OPTIONS --stop sleep 2 rm $PIDFILE echo "(Done)" else echo "can not stop, it is not running!" fi return 0 } case "$1" in start) start ;; stop) stop ;; restart) stop sleep 5 start ;; *) echo "Usage: $0 (start | stop | restart)" exit 1 ;; esac Whenever I do solr -start I get this error: "Error occurred during initialization of VM Could not reserve enough space for object heap" I think this is because of the file above... Also here is where I have solr installed: var/www/solr and here is the start.jar file located: var/www/start.jar Help me out if you know whats causing this. Thanks BTW: OS is ubuntu 9.10

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  • How to remove the Ubuntu Gnome desktop after making the switch to KDE?

    - by codeLes
    This is the opposite of this question. Basically I've been using Ubuntu for a while but decided to give KDE a shot so I went through the process of getting the latest KDE installed. I'm very impressed with KDE and the Kwin window manager seems like a better WM than Compiz which is what I was using for Gnome (sure that's an oppinion). This was an Ubuntu Jaunty install. So how do I go about removing the Gnome desktop? Is there an automated way similar to what my previous question covered? UPDATE: Should there be any packages I should NOT remove in the process?

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  • Middle mouse click in VirtualBox (Vista host, Debian guest)

    - by Ken
    I'm running Virtualbox on Windows Vista. I have a Microsoft USB mouse (it says "Comfort Optical Mouse 3000") with left and right buttons, and a mousewheel in the middle. If I press down on the wheel, it pretty obviously makes a "click". I'm running Debian inside Virtualbox, and it's working great, but middle-mouse-click does nothing. Left and right click, and scrolling with the wheel, work fine. Is there any way to get middle-mouse-click to work in my virtual machine?

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  • Lesser known Ubuntu desktop applications

    - by becomingGuru
    So, this Ubuntu software center comes with 100s of applications of all types. In this version they have disabled rating, making it hard to find how good it is. I found gnome-shell today, that seemed awesome. There are other ones, less well known, For eg, Abiword is far better than Open Office Org Word processor in many ways. (Altho' I dont like word processors themselves.) What are the other less well known applications that you use and like. One application per answer.

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  • WMII Terminal Width of 80 Columns for xterm (colrules)

    - by BCable
    I'm trying to get WMII to split horizontally at 80 columns for xterm, but I'm only seeing a way to do this via percentage. It would be nice to be able to set it by something other than percentage for various resolutions, but if I have to deal with that I will. The problem is that even percentages don't work at my resolution (1366x768). 47+47 in /colrules yields 79 characters and 48+48 yields 81 characters. As far as I can tell, there is no decimal system allowed so I could do 47.5 for instance. I came from Ion3 and I'm used to using 80 column terminals, resizable by the keyboard, to get a reasonable cut off point for VIM when I'm coding. I would just settle with using the mouse, but WMII seems to be much more fluid than Ion3, so I would have to do it a LOT, which sounds annoying. Any ideas?

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  • FreeNAS - how to "Exclude from file" in Rsyncd (GUI)

    - by user179181
    I am trying to set rsync tasks to Pull user profiles from 11 Windows machines running DeltaCopy Server and then configure ZFS periodic snapshot tasks for a backup solution. So far this has been working fine, although i would like to exclude certain file types like .DAT or NTUSER.DAT. My Exclusion file resides on the local ZFS Dataset (Receiving side) and is as follows: Temp Temporary Internet Files NTUSER.DAT NTUSER.DAT.LOG *.dat *.tmp *.DAT.log *.ost *.pst The command i typed under Auxiliary Parameters (Rsyncd Global Conf under services)is as follows: exclude from = /mnt/Storage/User_Profiles/exclude.txt Ive tried deleting the .DAT files from the receiving end and just as i start to get excited i click refresh and there they are again

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  • "sh: /usr/sbin/xenstored: not found" - But it's there?

    - by Matt H
    What would cause running the file /usr/sbin/xenstored to print sh: /usr/sbin/xenstored: not found However, the file /usr/sbin/xenstored is there and is not a symbolic link. Actually I should be running this as root. That prints a similarly odd message. sudo: unable to execute /usr/sbin/xenstored: No such file or directory By the way, xenstored is not a script, it's an ELF executable. My guess is that it's because I haven't gotten all the dependent libraries installed. However, I would expect it to say something like this: ./xenstored: error while loading shared libraries: libxenctrl.so.4.0: cannot open shared object file: No such file or directory Which is true of running xenstored on a system that doesn't have all the required libraries. Why do I get "not found" vs the much more useful "cannot open shared object file"?

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  • Curl authentication

    - by Jack Humphries
    I am trying to download a file with cURL from a password protected directory on my site. It is not working. Instead of the downloading the requested file, it downloads a HTML file that says, "Authentication Required!" I'm not sure what the problem is. I've tried both of these (with the same result). The username and password are correct (and if the link below is used in a web browser, the file downloads successfully). 1) The username and password are included as part of the URL. curl https://username:[email protected]/auth/file.dmg --O /file.dmg; 2) The username and password are included as an option. curl -u username:wordpass.1 https://www.example.com/auth/file.dmg --O /file.dmg;

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