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

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What is the difference between linux teminal types VT100 (Wyse 85) and vt100 (BS erase)

When I tried to login through a linux machine through ssh, I was asked for selection of two Terminal types: VT100 (Wyse 85) and vt100 (BS erase). I searched in google, but I couldn't get the answer. ...
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242 views

How to let xchat play a sound when someone send me messages?

I know I should set the events. I assign the sound to channel msg hilight, private message. But it doesn't work. I set the audacious to play the file. I test it with your message event, it works ...
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321 views

How to configre network card on centos?

I have a fresh install of Centos on a machine with two NICs, one built-in and another one installed in PCI slot. However in the network settings I get one shown as wired connection picking up IP from ...
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24 views

Can I Query a Pdf Reader If It's On The Last Page?

I'm writing a wrapper shell-script to do the following: Searches a directory for .pdf/.djv files. makes an ordered "playlist" of files Opens 1st file in a pdf reader. Automatically change to the ...
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93 views

Power user switching between Windows, Linux, and OSX - Need easier way to map Keyboard

Alright, I know this question has similar questions. I went ahead and copied some below. I am not interested in why I should learn Mac instead of Windows nor how to remap keys (It doesn't work very ...
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125 views

why is my sort slower with more ram?

System specs below. I recently purchased 2X4 RAM: Corsair XMS3 8 GB (2 x 4GB) 1333 MHz PC3-10666 240-Pin DDR3 Memory Kit CMX8GX3M2A1333C9 I already had 2X2 in there for a total of 12GB: Corsair ...
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706 views

Setting channel width with rt2870: iw: Device or resource busy (-16)

I only now found out that my USB WiFi stick is capable of n-WiFi (Edimax EW-7711USn), so naturally, I'd like to get the highest possible speed from it. My link is great, 29dbM and 70/70 quality, but ...
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44 views

How to change Linux hot key

I would like to know if it is possible to change the hot key on a Linux distribution. I have already tried to re-configure the hot keys in the virtual box preferences but i have not been able to ...
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2k views

How to add EFI entry by efibootmgr?

I installed stand alone Ubuntu on my laptop by formatting the HDD. Now HDD is not in my EFI menu. From a Live USB environment, I added the EFI entry, even by chroot. However, the EFI menu is reset to ...
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278 views

Difference between logical volume and physical volume

These are various terms used in Storage virtualization which can be very confusing as to their hierarchies and meaning. Please explain each of the following terms and the difference between them if ...
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308 views

GTK+ Theme and Cursor Theme stopped working

Parts of my installed themes have stopped working. I'm not entirely sure why at this point. I know I've installed numerous things which led up to realizing certain theme elements were broken, and ...
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1k views

Can't start mariadb in centos 7

in the systemctl status it shows: systemctl status mariadb.service mariadb.service - MariaDB database server Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled) Active: failed ...
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367 views

How do I set different background images for different monitors in Gnome 3.10?

How do I set different background images for different monitors in Gnome 3.10? As one monitor is 1360x768 and another is 1920x1080 it is not possible to use the Span feature and keep proper aspect ...
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883 views

mount cifs: input/output error

I'm running fedora 20. I can connect successfully to a shared Windows folder via files > connect to server; however, when I try mounting the share manually I get various errors: sudo mount.cifs ...
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19 views

Compressing an OS after some slight changes has yielded massively different results - why?

I am using SUSE Linux on a Virtual Machine through VMWare Workstation. This morning, I zipped up a copy of the folder containing my VM (.vmx, .vmdk, .vmem, single snapshot and all) and sent it to my ...
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169 views

wireless internet in linux is very very slow… but in windows… everythnings fine

yesterday when i was connecting to our neighbors wifi connection which is the signal strength is below 50%, i cant browse anything... even ping to gateway. 100% packet loss, and sometimes.. i can ...
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357 views

Can't start X: “intel(0): Failed to set backlight acpi_video0”

I originally posted this to the ArchLinux forumns but didn't have much luck there: https://bbs.archlinux.org/viewtopic.php?id=185800 I was trying to adjust my laptop brightness, and after running ...
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104 views

Writing CD in Windows 7 with autorun.sh to autorun in Linux

is there any way to create a CD in Windows 7, preferably with the native CD burning interface they provide, that contains an autorun.sh file where its Linux properties will automatically be ...
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32 views

Disk partition errors after size change

I increased the disk size of one of my VM when it was running. After a reboot, I get the following error message (at boot time): Mounting local filesystems...failed Now the VM is only accessible ...
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42 views

ssh key works on terminal but not on git

I have my machine, with it's ssh key. the public key is on the git remote machine. I can easily connect to the Git machine with simple ssh threw terminal. The problem is when I perform a "git pull" ...
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75 views

Unable to delete a file 'Operation Not Permitted'

Got a problem with a Linux box where I'm trying to delete a file but it won't let me. Anything I try to do on this file (chmod, chown, rm, mv etc.) end up with the same error. I have noticed that ...
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24 views

How to map a symbolic directory link to different directories based on user id

Is there any way to a map a symbolic link directory to different directories based on the user id in Linux. For instance if a user X executes cd /var/www/html/ then his/her directory gets changed to ...
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233 views

Install old version php on Centos

I have troubles with php + mongodb After redeploying project, php throw 500 because "Can't canonicalize query: BadValue $in needs an array" (https://jira.mongodb.org/browse/PHP-1051) I install same ...
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25 views

Check for available command

When I execute the bash script with root user I receive the output it say iptables not exist. Why this happens only with root? for CMDAPP in "hash" "curl" "iptables" do if ! hash "$CMDAPP" ...
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604 views

“qemu-nbd --create” without sudo

I'm working on a custom OS, and the make recipe I wrote for creating a new disk image requires sudo for connecting/disconnecting the virtual HDD image to a /dev/nbdN device. Because I don't want sudo ...
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58 views

Figure out if Solid State Drive is being used as cache

I am using Fedora 20 OS. I am trying to see if my SSD is being used as Cache for fast reads. So far I check to see if the SSD is mounted so I did: sudo lshw | grep -A 10 SSD and I got: ...
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79 views

binary substitution in (audio)streams with bbe or sed

I try to do some stream manipulation with webradio streams. Goal is to use a pattern in triggerfile to substitute some seconds of the instream to silence in the outstream I found bbe to possibly fit ...
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50 views

Battery & Fan issue

System ASUS N56VJ Ubuntu 14.04 - 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Issue: Sometimes when I start up my laptop, the fan turns on at full ...
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645 views

rTorrent access tracker with proxy?

all tracker domain was blocked in my ISP I can create proxy with ssh -D and use privoxy to trans socks5 proxy to http proxy, the proxy works well How I can use proxy it only when rTorrent access ...
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28 views

Need to source bash_profile each time

I have get a server space that runs linux. A user is created for me. I have a bash_profile in my home directory and I set environment variables for JAVA_HOME and JAVA. When I access server through ...
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465 views

How to start icewm?

I installed icewm 1.2.13. Metacity is my default window manager. Usually, to replace window manager --replace option is used, e.g metacity --replace. But my version of icewm does not have this option. ...
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28 views

How can I monitor every newly created process of an entire Linux system?

I am on a gentoo Linux system and I want to monitor the time and name of every created and deleted process on an entire Linux system. How can I do that? If possible, I do not want to install new ...
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66 views

How to change the network where the virtual machine is connected to, in Vmware ESXi with Perl in Linux?

Can anybody answer that how to change a VM's network with Perl? I would like to periodically change the network where the VM's nic is connected. Thanks
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34 views

Running commands on bootup on unknown Linux-based machine only by placing files

I have a Zmodo DVR that runs some kind of Linux-based OS and which (I think) has an ARM processor. I can place files in its filesystem using its updater tool, replacing anything with the same name, ...
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616 views

Linux for a laptop, docking station, and 3 monitors

I'm looking for suggestions on a Linux setup that will work well for a Dell Precision M4800 that has nVidia graphics and spends a large chunk of it's time on one of Dell's port replicator / docking ...
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23 views

Broswers loading a page that doesn't appear to exist in DocumentRoot

This is driving me bonkers. I have Apache running on a Raspberry Pi and I'm working on a website that has a user log in that leads to a page where users can enter data and send it to a MySQL database. ...
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315 views

Converting a MBR partition table to a GPT on a HFS+ hard drive

I have a HFS+ 2TB drive that I used to use with my Mac. I wanted to read its contents from Linux (Ubuntu server 14.04) too, so I plugged the drive and played around with gdisk, fdisk, parted and so ...
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108 views

ffmpeg - how to see what scaling algorithm is used

I'm upscaling a 200x200 video to 400x400 using the -sws_flags scaling option to set the scaling algorithm. Now, I can't tell by the console output if some algorithm was used, neither by the looks of ...
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84 views

VNC over SSH, Running into Trouble. Used to work fine

Hey GUys having a bit over trouble with tunneling VNC over SSH. I had it working fine in the past, but I went to try again and after reviewing my notes, Superuser, and a few guides it just wont ...
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35 views

links command saving location

I have been using the links command in Linux, but I cannot seem to choose a location to where I want the file to be saved. Files are always saved in /usr/portage/distfiles. I have tried changing my ...
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65 views

I couldn't umount a logical volume on suse

sandipani:~ # lsof | grep lvolume100 sandipani:~ # fuser /lvolume100 sandipani:~ # umount /lvolume100 umount: /lvolume100: device is busy. (In some cases useful info about processes that use ...
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28 views

Booting DOS through Linux

I'm trying to make a FAT16 (DOS) partition bootable. I don't have a floppy or CD-ROM drive, so this is quite difficult. I've tried the "ms-sys" program, but no luck. How would one "install" the ...
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74 views

How to configure SSH tunnel with same intermediate/end server?

I have read this question on SuperUser and the SSH section of the Debian handbook, and I am trying to do something similar. But there is a slight complication in that I really only have two servers in ...
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36 views

Upgrade my laptop does not start now, I return to login

Hi I have a problem with my Kali linux, Yesterday I did a upgrade in my kali and after of this I restart my laptop, now the problem is that when I put the user and password everything is correct just ...
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261 views

ssh into localhost - password for private key

My goal is to be able to ssh into localhost on my remote linux machine (Ubuntu 12.04 LTS x64). I have a private key that on my local Windows that I use in putty to access that remote machine. On the ...
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662 views

Can't mount a usb disk in my raspberry pi

When I execute "sudo blkid" I get: /dev/mmcblk0p1: SEC_TYPE="msdos" LABEL="boot" UUID="993B-8922" TYPE="vfat" /dev/mmcblk0p2: UUID="fc254b57-8fff-4f96-9609-ea202d871acf" TYPE="ext4" /dev/sdb1: ...
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96 views

Make fails: implicit declaration error

I'm trying to compile an application (specifically TVHeadend) which uses gcc and I'm getting this error: src/main.c: In function 'main': src/main.c: error: implicit declaration of function ...
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241 views

Run GUI programs through SSH without window manager on host

So, I have a Raspberry Pi running Arch Linux ARM. I don't have a window manager on it as it's not exactly powerful, however I was wondering if it would be possible to SSH to it from another computer ...
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226 views

Wireless Network card Disconnection while running 4+ VirtualBox instances(bridged)

I am running several VMs with VirtualBox using Vagrant to configure and control my test env. Host box is Linux Ubuntu 14.04. I am using a WiFi connection to a Cisco WAP321 and I have the VM boxes ...
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536 views

2 port 10Gbe NIC Performance half of expected

I'm having trouble getting my expected throughput of a Intel dual port 82599EB 10-Gigabit. I've tried many things and want to know if there's anything I could try that I've missed. My hardware ...