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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I cannot use xdotool with at

I have been trying for a while now to find some way to get xdotool to perform clicks for me at a specified time with at. I have tried using 'xdotool click 1' as the command in at, as well as having ...
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70 views

How to use 'Keychain Access.app' to manage ssh keys with a single ssh-agent?

I don't want to type the passphrase to decrypt my private ssh key every time I use it, but I do want to type it occasionally so I won't forget it. The first time I'm using ssh since restarting or ...
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13 views

why rebinding a key impacts other keys?

I wanted to modify the key A on my AZERTY keyboard. It works using xmodmap: xmodmap -e "keysym a = a A aogonek Aogonek" xmodmap -e "keycode 108 = Mode_switch" Now Alt-Gr-a does issue an aogonek. ...
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91 views

How to focus a Chrome window, potentially changing Linux workspace

I'm using chromix to focus a tab (and possibly reload it), using the following function which checks the requisite background 'server' process is running (in communication with a browser extension ...
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115 views

Monitor turns off then on again issue with led monitor on older (2011) hardware

Monitor turns off then on again issue with led monitor on older (2011) hardware. Problem solved by swapping out the 2012 led monitor with the original 2011 lcd monitor. Question Why does the LED ...
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17 views

facl doesn't set files executable by default

I ran these commands on a directory: setfacl -d -m g::rwx dir setfacl -d -m u::rwx dir setfacl -d -m o::--- dir getfacl dir returns # file: dir # owner: someuser # group: somegroup # flags: -s- ...
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28 views

PC connects to Samba Server automatically

This is a situation where the PC connects to Samba Server (SMB) automatically. I first realized this was happening on a Windows 8.1 laptop, which is a refurbished HP Pavilion g7 from HP. When booting ...
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20 views

How to make to identical sized archive parts with rar archiver?

I am trying to compress a file with option -v but I am unable to figure out the byte count to set, yielding two identical sized archive parts (part1,part2). My original file size is: 1068303782 bytes. ...
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164 views

Touchscreen crashes Xorg config

I have a chroot Linux install running on an Android device and have xorg running on the devices screen which works well, however I am trying to get the touch screen to work, below is my current setup ...
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21 views

How to run a OS installed in External HD in VM

I have Kali installed in my 1TB External Harddrive. I can't reboot system again and again to run Kali. Rather i want to run it in VirtualBox and at the same time i want to use Windows8.1. How can i do ...
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82 views

SSH and telnet fail strangely on an embedded linux system

The target machine is an embedded linux running BusyBox v1.00-rc2 (probably) on an ARM board. It's sealed and I can't open it, not that I would have the resources or knowledge to do anything even if I ...
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130 views

different versions of PHP for CLI and Apache resulting in extension incompatibility on ubuntu

So first of all, how this happened: I've got running server with Apache (and PHP5 and mysql) installed. Then I needed to update PHP to version 5.4.0 (at that time), so I run sudo apt-get update ...
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207 views

Tomcat6 - SSL received a record that exceeded the maximum permissible length

After following the instructions to setup a secure http connection on my tomcat server (link: https://tomcat.apache.org/tomcat-6.0-doc/ssl-howto.html), I had this error pop up when I requested ...
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25 views

Security Monitoring Using last Command

I am new to linux administration and was looking for a good way to get e-mail alerts when a user logs in. I was thinking this might be useful as a security monitoring tool to allow me to see who is on ...
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361 views

Kali Linux unable to boot Booting Kernel Failed invalid argument

When I boot using a usb device I hit a splash screen (boot menu) and regardless of the option a select I get to a black screen my computer beeps a few times then the screen displays boot: I hit ...
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61 views

How to find my USB erasure block size and page size

I want to know my USB erasure block size and page size for partioning the pen drive for an Arch Linux installation. I've tried flashbench but I can't understand the output (numbers are mostly the ...
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491 views

Unable to launch “gnome-session --session=ubuntu” X session

Every time I get into my Linux VM (10.4, no choice in version, I know it is end of life), I get an error: : unable to launch "gnome-session --session=ubuntu" X session --- "gnome-session ...
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54 views

pppd connection using airtel chatscript

Can anyone explain this chatscript for pppd connection using airtel service provider. # File: /etc/chatscripts/generic-connect. # APN is being passed from the configuration file to variable \T # ...
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152 views

Why would CUPS successfully print when lp is invoked on a PDF or ps, but not when it's given a format from earlier or later in the filter chain?

I'm setting up a Konica-Minolta BizHub C452 for use through CUPS. At the moment I am able to print plain text, postscript, and PDFs beautifully, but not other formats. For instance, the printer is ...
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159 views

Keepalived / VRRP splitbrain

I got a problem in Centos 6.5 with keepalived which in one time produces: mit1-lb-1: Sep 17 03:03:26 mit1-lb-1 Keepalived_vrrp[10423]: VRRP_Instance(VI_200) Transition to MASTER STATE <== z ...
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263 views

Some ffmpeg command not working properly when I execute through java on ubuntu 14.04

When I execute ffmpeg command through java code then It is not executing properly Example-: I want to draw text in video through java code My code in java is String cmd="ffmpeg -i 12213blob.mp4 ...
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19 views

Linux, Xorg, & KDE: Run Evolution As Different User

have been unable to run Evolution as a non-privileged user without using a terminal window and sudo. First of all I don't want my regular user in sudoers. Second, I'm running systemd, so /run/user is ...
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102 views

Cannot create LUKS container on external harddisk

I have an external USB drive, where I had two partitions. A 100 MB partition where I store my password manager file, and the remainder (500 GB) of the drive for the actual data in a LUKS container. ...
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282 views

Can Linux be installed successfully on an intel atom D2500/GMA3600?

I'm triyng to install debian on an intel D2500HN motherboard that features the GMA3600 Power VR video chip. I tested various versions, 32 and 64 bit but the result is always the same: an artifact ...
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27 views

How can I know when the system time was updated in linux?

In linux is the system date/time and other date related details like timezone stored in any file where I can view the updated time and know when the system time was last updated. Is there any other ...
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764 views

How to install wireless drivers on kali

This might be a question that's already been asked, so I apologize in advance. I recently acquired an hp laptop (really not great) and I decided to wipe it and install kali. During the installation ...
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277 views

HDPARM Security Erase issue

I have bought a used Agility 3 SSD. And I wanted to wipe out data from my Linux box using hdparm. But it was not OK. Here are the steps I followed: # hdparm --user-master u --security-set-pass 1 ...
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77 views

Port forwarding on Linux

I am trying to get a port forwarded on my Linux machine, and I think I do everything right, but it doesn't work. The iptables-save command on the server looks like this: [root@wcs ~]# iptables-save ...
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22 views

Generate measurable network load for VM host

I am in the process of building a VM whose purpose is to generate load on its host machine for CPU, RAM, Disk, and Network. The first 3 are easy enough, but I am stuck on the networking portion. I ...
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266 views

How to make Android x86 bootable again?

I have an old ASUS eee PC 1000 with Lubuntu installed on the larger 30 GB disk (sdb) and Android x86 (stable release 1) on the smaller one (sda). Android x86 was installed first as has been ...
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4 views

Is it possible to modify the system-wide opacity of non-selected windows in os-x, or must this be done on a specific basis?

~50% or even lower opacity on can be very useful sometimes when you have lots of clutter in the background blocking your view. The Terminal application has this nice capability in preferences -- ...
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52 views

Difficulty creating additional inode/directory Mimetypes

I’m trying to figure out how to create custom folder icons in XFCE, <--((My specific goal)) (for display inside the home folder not on the desktop, for that you can just make a launcher) and been ...
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42 views

Mysql listens to all yet remote connections not possible

I am running this command on Centos netstat -an|grep 3306 | grep LISTEN and it gives me tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN yet when I try to connect to ...
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154 views

Sort out - kamailio rtpproxy-ng and mediaproxy-ng configurations

I have been trying to setup Kamailio for calling between webrtc and classic sip phones. I have been able to setup websockets module and webrtc to webrtc calls are working fine (though chrome to firfox ...
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108 views

mounting/mnt/usb-generic in ubuntu 14.04

This is error occurred for me while booting ubuntu 14.04: An error occurred while mounting/mnt/usb-generic_USB2.0-CRW_20100201 press S to skip or M for manual recovery. Can anyone tell how to ...
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30 views

Apache compilation from source followed by php compilation as DSO and suphp. Pull up a phpinfo file under both configurations

I've followed all the steps specified here. I've done the following steps as per the link: Compile apache from source (using httpd-2.2.24.tar.gz, apr-1.4.6.tar.gz, apr-util-1.5.2.tar.gz) Compile ...
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35 views

Trap a program that has no command line output

I am using the CrashPlan backup tool to backup my home file server. I use an ssh tunnel to interact with the GUI on the remote machine (as detailed here). Currently, I have an alias in my zshrc that ...
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19 views

Digikam version 3.5: Cannot open the root. It is not a physical location

run digiKam version 3.5 on opensuse 13.1 i wonder if i can see images that are not (!!) in a album!? Why am i not able to do so? all i can see are images that are associated to an album; why ...
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25 views

digikam: how to see folders - i only am able to see certain albums - why?

I wonder why I am not able to browse and view images in Digicam [3.5] that are on my drive. Directory Path: home/my_name/images Why am I not able to browse folders that contain images on my ...
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15 views

Root folder no longer read/writeable

I was in the proces of changing the folder permissions of a new user i created. The user only needed access to one specific folder, so to remove any other permissions i fired a command looking ...
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22 views

how to swith the image viewer to black and white rapidly

experts how to view photos and to rapidly change the major categories i have several hundred images (photographs) taht i want to view on opensuse linux version 13.1 i want to view the images - and ...
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60 views

Multi-distro LINUX from grub2. LVM Vgs not detected

Having a very weird problem with LVM in linux earlyspace. My system runs with 4hdds. Three are sata and one is eide/pata (/dev/sdd). I'm using grub2 to manage several OS's (two debian, one ...
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38 views

ssh-agent/ssh-add - how can I force confirmation by default?

I use ssh forwarding alot and I'm concerned about "agent hijacking", so, I like to use -c option when calling ssh-add, which enforces confirmation on every key usage. How can I turn the confirmations ...
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154 views

Why does my PPTP VPN connection fail to route to the remote network in Linux?

I'm trying to connect to my office's PPTP VPN on Linux via ppp. The gateway has a local IP address in the 10.4.x.x net and I need to access other machines in the 10.x.x.x net (which I can do normally ...
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20 views

Not able to install rhel6 as dual boot

I have lenovo laptop with below configuration 500gb hdd 4 gb ram windows 7 home basic(64 bit)(OS). I have 97gb unallocated free space is there,when i am installing rhel6 i am getting error like this ...
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41 views

Time desklet with time zone different than system timezone in linux

I want two desklets on my desktop, one showing system clock's time and other showing time at a different time zone. I tried searching for such a desklet where I can configure its time zone but ...
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167 views

GIFCam for Linux

Gifcam doesn't completely work on Linux. I opened it with Wine and this is what it looks like: The functions work: recording and saving. But the output is blank. When run on Windows the green ...
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21 views

Unable to hibernate with usb wireless stick

I'm trying to hibernate a system, but it immediatelly wakes up when I use the usb wireless adapter. I tried to disable all wake up capable devices, but it didn't work. # acpitool -w Device S-state ...
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22 views

How to disconnect eclipse in an X session without killing child?

So I logged in to a VM from my laptop and started eclipse like this: SSH -X eclipse & Then I ran a program from eclipse (under Pydev but I don't think that's relevant). I now want to disconnect ...
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189 views

Cannot start any virtual machine from VM Player

I am using a Desktop PC with Windows 7 as Operating system. I am using VM PLayer to run a CentOS for me. I am going to use CentOS to setup an Asterisk environment for me so I can conduct studies on ...