Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Multiple GPUs in Linux - how to specify which GPU runs X windows

I have been running Red Hat Enterprise Linux 6.1 on a system with a GTX 480. Recently I added a 3GB GTX 580, as my CUDA application requires more memory than I have on the 480. Due to space issues in ...
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2k views

why can't I create directories in virtual box shared folder? Windows 7 host, arch linux guest

I'm mounting a shared folder in an arch linux guest on a windows 7 host in Virtual Box. The shared folder's filesystem is ext3 and is mounted in windows 7 with Ext2Fsd. I mount the shared folder at ...
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25 views

Where to find config file for how many connection are permitted to the server

I'm not very familiar with UNIX systems yet and I need to connect to one server by telnet. When I try to connect I get following massage Connected to some.ip. Escape character is '^]'. too many ...
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24 views

Modify incoming packets before forwarding in Linux

I’m using a Linux (Debian based) system on which IP forwarding is enabled (/proc/sys/net/ipv4/ip_forward is set to 1). I can read the incoming packets using a raw sockets program, but I want to modify ...
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15 views

No connection with proven open port when using mosh (mobile shell)

I have two connections—home and office—with the same ISP and the same router (WRT 54GL with Tomato Cloud) with almost identical configurations. I’m unable to establish a mosh connection from the ...
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19 views

How much “Load_cycle_count” can my hard drive hypotethically sustain?

I'm using S.M.A.R.T. to check my hard drives, i recently purchased a used WD Caviar Blue 2.5" and i noticed that the Load_Cycle_Count has already exceeded the 300k mark, which is the maximum that the ...
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23 views

Treat USB Keyboard as Gamepad

I have a second USB keyboard I'd like my computer to recognize as a gamepad rather than just an extra keyboard. Is this possible on Ubuntu 14.04? I've seen information on doing the opposite, treating ...
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22 views

If TPM owner password set in linux, how to enter owner password in windows to enable bitlocker?

I have successfully taken ownership of, and used various features of, my tpm in linux, using tpm_takeownership and related applications. Now when I try to enter the owner password in windows to ...
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39 views

How to automate running the dhclient for wwan0?

in Linux Mint 17 I have to run sudo dhclient every time I connect and disconnect to/from the Internet using a mobile broadband dongle, because otherwise the connection is declared active but when I ...
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56 views

Boot USB Tails through VirtualBox?

So I have Tails 1.2 on my USB (Disk 5) and also on a partition (2) on an external hard drive (Disk 4). The USB shows up as 3.75GB and the partition is 6GB. I want to be able to boot either Disk 4 or ...
2
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179 views

Not able to create a user account in Linux Mint 17 Qiana with Mate desktop

Recently I installed Linux Mint 17 Qiana with Mate desktop, downloaded from the Linux Mint website. All works fine but I am not able to create new user in "Users and Groups" GUI tool. Opened "Users ...
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26 views

OpenSuse 13.1 PPC64 Port - Slow boot with error messages, and low color-depth

I have a PowerMac G5 Dual 2.0 GHz, i have installed the PPC64 port of OpenSuse 13.1 on it, and i am experiencing a few problems. I guess thats the price of running a unsupported port/distribution. ...
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32 views

How to implement an integration for start and end of a call in Vicidial

I've developed most of the application in PHP for the integration (very similar to our Asterisk implementation) and all we need at this point is to run php async.php 12313123.12312 (shell command) ...
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29 views

Quickly write byte to Bluetooth dongle's serial port when webpage loads

I have a USB Bluetooth dongle mounted (?) as /dev/rfcomm0, and when I navigate to my local IP address from another device on my network in a browser, I want it to write a 't' to the serial port so ...
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44 views

What does a “Copy/Cut & Paste” operation exactly consist of?

I understand the purpose of these operations. What I'd like to know is 1.What happens at the File System Level ? Does a new MFT entry for the copy get created in the destination volume's MFT and ...
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31 views

What should happen next on init scripts?

I've been using a Linux Mint 13 live system on my memory stick and I decided to put it on my hard drive. It already had several scripts to uninstall software and optimize it, scripts that I had to ...
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131 views

Unable to mount location after installing Linux Mint

I have been using Ubuntu for a while, but I decided to move to Linux Mint. I removed everything and clearly installed it. After the installation there are two parts which are File System and Toshiba. ...
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45 views

wget how to download zip files with query parameters attached to filename

I am sending a request to a clients server using wget. I want to download all the .zip files but the problem is the .zip files have key/values appended to the files. Like so: ...
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17 views

Configure three screens backed by two graphic chips in a laptop under Linux

I'd like to connect two external monitors (one via HDMI, one via VGA) to my HP ProBook 4330s LW813EA laptop, while keeping the laptop screen on as well. The Intel HD 3000 graphics embedded in Core ...
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31 views

how to keep a distributed software up to date on Linux machines

I have my own distributed software running on few RasPi (20+) in different geographical locations, but every time i change something in my app, i have to update the excuteble in all Pi's manually, ...
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35 views

no route to host: Is this associated with SSH or system network configuration?

Problem statement: Not able to ssh from pc1 to any other pc's mentioned below after adding the IP rules tried below System setup: I have a set of 4 machines connected to HUB. Their N/W config: ...
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29 views

How to boot encrypted drive

i have a laptop installed with endpoint security disk encryption. I create a live usb to boot linux, but it doesn't work. Is there a way to boot a usb thumb drive from an encrypted disk? do i need to ...
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37 views

random fortune on business cards

I have a latex business card template I am using, and I want to have the first line(s) be a fortune from the fortune command in Linux. I have fortune installed. How can I have a different fortune on ...
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176 views

Why can't I suspend Ubuntu 14.04 (running from USB3) anymore?

I'm running Ubuntu 14.04 on an USB3.0 stick (Sandisk Extreme 64gb, both /root and /home are on it) as my portable development environment, mostly on an Asus N56VZ laptop. Recently, Ubuntu fails to ...
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43 views

Virtual filesystem on linux to translate contents (fuse?)

Is there some existing software to use a virtual filesystem to translate file contents? (read-only or read-write). It would be interesting to be able to generate a view on a code-base, for example. ...
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172 views

Why is avahi-daemon excessively spamming my log files?

My VPS provider recently suspended my account for "participating in a DoS attack". Since I've naturally done no such thing, I can only assume it was a security breach, and am now investigating what ...
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172 views

How to force the Linux kernel reclaiming cache memory rather than using swap?

I have a PostgreSQL-driven web service on two Debian servers, one a vhost running Linux kernel 3.2.0-2 with 2GB RAM and the other a dedicated server running Linux kernel 2.6.26-1 with 6 GB RAM. ...
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0answers
132 views

Debian shutdown takes a long time (RAID/crypt related)

I'm running Debian Jessie and recently my shutdown has been taking a long time. When I sudo shutdown -h now I'm sent to a blank screen except for a blinking cursor which sits for ~1 minute. It then ...
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0answers
31 views

Detect vga signals from command line

Currently I am working on Ubuntu 12.10. I am using vga2usb device for interacting with other vga devices such as monitors. Is there any command line utility or any specific command from which I can ...
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50 views

Printer configurations on Linux: Providing privilege to normal users

I am on a CentOS machine. Everything is working fine, I can configure the printer with the GUI System->Administration->Printing. It asks for root password and then I can make the configurations. ...
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0answers
30 views

Best practise for debbuging hdd

I just logged onto my machine when suddenly ls gave me an Input/output error. After rebooting the machine /dev/sda1 could not be mounted. dmesg results in : [ 545.691453] EXT4-fs (sda): VFS: Can't ...
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103 views

LC_LOCALE settings interactions between Mac OSX and LINUX via SSH

I have been struggling with the following problem for years now. I have never been able to solve it, and I adopted several workarounds to keep being able to work. However now I can't stand it anymore, ...
2
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0answers
22 views

Can I configure GNOME 3 to move a window to it's own workspace when maximized?

I'm using GNOME Shell 3.10 and would like to have each maximized window moved to its own workspace automatically. Ideally I'd also like GNOME to prevent any workspace from having more than one ...
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0answers
34 views

What does dbconfig-common do? Should I use it?

For several packages, the installer asks you if you'd like to use 'dbconfig-common'. After some Googling, I can't really find (in plain old English) what the heck that package brings to the table, ...
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70 views

Is there a tool like dm-crypt/luks using RSA encryption?

Is there a library/tool available for linux, similar to dm-crypt/LUKS using RSA encryption instead of symmetric ciphers? I want the "public side" to only be able to create these volumes, and the ...
2
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0answers
220 views

Stuck on GRUB command prompt after regular kernel update

I am running Debian Wheezy. Update Manager suggest to install kernel update. After update, I reboot system but instead of listing all the kernels (bootloader), it gave me a GRUB command prompt: ...
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0answers
156 views

How to use DVD+RW (UDF) both in windows and linux?

I have dvd+rw disk. I would like to create UDF file system on it to use with windows 7 (and newer) and gentoo both. How must I prepare media and what commands should use to mount it in linux? What I ...
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311 views

Debian Linux - “hcitool scan” does not find devices

I use free VMware player with Debian 7 image. I use Cambridge Silicone Radio Bluetooth USB adapter "hciconfig" shows me two interfaces (I don't know why two, and I don't know with which I should ...
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0answers
123 views

Block all outgoing traffic for a User running Wine apps

Good day, I'm using a lot of WINE apps under Linux which work just fine, but one thing I am specifically looking for right now is to block their access to the internet (outgoing), with exception of ...
2
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0answers
35 views

Download yum packages on Debian for an offline fedora20 system

I need to download YUM packages (namely java-1.7.0-openjdk, gstreamer-plugins-good, gstreamer-plugins-bad and gstreamer-plugins-ugly) for an offline Fedora 20 machine, and I'm working on a Debian 7. ...
2
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0answers
202 views

How to register shutdown script on Amazon Linux in AWS EC2

I am using Amazon Linux (RH-based distro) in AWS EC2. I followed the structure of /usr/share/doc/initscripts-*/sysvinitfiles to create an init script in /etc/init.d. /etc/init.d/do_something ...
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0answers
893 views

Why does NTP require bi-directional firewall access to UDP port 123?

From What are the iptables rules to permit ntp?: iptables -A INPUT -p udp --dport 123 -j ACCEPT iptables -A OUTPUT -p udp --sport 123 -j ACCEPT Also, from the NTP website: ... ntpd requires ...
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0answers
98 views

Behaviour of Caps-lock in Linux on VirtualBox, OSX Host

I'm running Ubuntu under virtualbox on a MacBook Pro and I'm trying to remap the Caps-Lock key to mod3 so I can use it as a replacement for the Alt key in Xmonad. I can remap the keysyms but the ...
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0answers
2k views

Perf samples too long, lowering kernel.perf_event_max_sample rate to

My machine freezes from time to time and I can get it working back by pressing the space key. I have this problem since two weeks now, but it was just once per day max. Now it's starting to be many ...
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0answers
74 views

Iptables error :libipt_cgroup.so doesn't exist while using net_cls.classid in net_cls cgroup subsystem

In kernel document doc/cgroup/net_cls.txt, it introduces the function of net_cls.classid, and show an example of netfilter (iptables) using this tag to perform actions. the command of iptables is: ...
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195 views

linux catalyst and three monitors

I just switched from opensource ati driver to catalyst because I had many crashes on my linux box when playing flash videos. It looks like with fglrx my system is more stable, but I lost my third ...
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139 views

X11 evdev mouse generates duplicate events

Lately my x11 server started registering several duplicate mouse click events per single click. I've tried upgrading xorg server and drivers, but it didn't help. Using different mouse doesn't help as ...
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0answers
164 views

I can't get XFCE terminal to display VIM's colorschemes

That's what I have in my .bashrc if [ -n "$DISPLAY" -a "$TERM" == "xterm" ]; then export TERM=xterm-256color fi In my .vimrc I have: set t_Co=256 echo $TERM prints xterm-256color tput ...
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0answers
116 views

rasperry pi / debian / directory mount issue

I have trouble regarding to external USB disk write operations I am using Rasperry Pi box with Debian Linux root@raspberrypi:~# umount /dev/sda1 root@raspberrypi:~# mkdir /media/extGrayUSB ...
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48 views

Sudo works as su

Ive observed kind of strange behaviour. I have openSuse and when Im in console and want to gain root access for executing one command, after typing sudo it like switches me as if Id type su. ...