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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Auto detach after auto connecting in irssi

I have irssi auto connect to a channel and send a message to auto connect which works. But for some reason the detach command (ctrl-a + d) does not detach the screen anymore. Is there a setting for ...
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RHEL 5 box constantly displaying NIC statistics on console screen, how can I disable this?

I have a RHEL 5 box that is constantly displaying nic statistics on the console screen when using the KVM. This makes it very hard to do any troubleshooting when the box goes down as these statistics ...
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Xmodmap ignored in Firefox, revisited

Related posts, but no solution: http://stackoverflow.com/questions/20386403/xmonad-xmodmap-changed-tab-to-alt-gr-but-it-doesnt-work-on-firefox-or-thunderbi Iso_level3_shift key not working in Firefox ...
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1answer
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What’s eating almost all memory and swap in this Linux machine? (not buffers/cached-related)

I have a Linux machine that reports almost all of its memory and swap are in use, yet I can’t identify any processes using a significant amount of memory on the machine. We are running Linux kernel ...
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25 views

How to find out who (what process) is starting another process?

So no matter how many times I kill exim4 it immediately comes back to life. I have stopped the service and everything but something is bringing it back to life and using it for spamming. How do I ...
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Linux machine with RAID 1 not booting after failed drive

I'm a Linux noob troubleshooting a machine that is no longer booting up. Originally it had two drives installed in RAID 1 and one drive failed. I took the good drive out and made an image of the ...
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Mouse scroll wheel does not function as it should in Linux Mint 17.1

I have an issue, using Linux Mint 17.1, my Logitech g700s mouse wheel buttons are inverted, i.e. the scoll up-down scrolls left-right, and the scroll left-right buttons scroll right-left. I have ...
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MPD remote audio using Alsa and nmcpcpp

Trying to configure mpd have 2 laptops one is upstairs(shall be refered to as A), runs linux mint xfce edition but using cinnamon other is downstairs(B) runs arch My goal is to have mpd ...
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Make tar archive only files without directories (equivalent of zip -D -j)

I want to tar (and gzip) files without directories and do not store directory paths. I want only flat files in my archive. For example if I'll do something like this: tar -czf archive.tgz ...
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Can't flash openwrt kernel on Mikrotik Routerboard 750

Im trying to flash OpenWRT onto Mikrotik RouterBOARD 750 and Im having some difficulties when trying to flash kernel. Im running OpenWrt form RAM right now. Even though, I erased kernel beforehand, ...
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How to make sure that repositories added to Linux Mint are safe and secure

I’m using the latest version of Linux mint which based on Ubuntu, I have installed many programs by adding a new repository to the list of checked repositories. Now I’m worried of how safe these ...
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1answer
24 views

Display Windows application via SSH X11 on Linux

Is possible to Run SSH server on Windows then make X11 connection forwarding enabled from Linux to this Windows and display Windows application on Linux?
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23 views

Why is netcat's bash server so ugly for client?

I started server like: nc -l -p 3333 -e /bin/bash Then I connected as client: rlwrap nc localhost 3333 Why is netcat’s bash server so ugly for client? Without rlwrap I cannot even use arrow ...
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1answer
13 views

Aptitude aborts automatically after running resolver

I'm having some issues with aptitude. I'm attempting to install all the fonts available in the debian repos, but apt-get doesn't seem to like the command apt-get install ttf* (its conflict resolver ...
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2answers
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Connecting via SSH to machine without SSH server running OR how to reuse existing ssh conenction reverse

Let's say I have two machines: A and B. A has installed SSH server and client B has installed only SSH client Connection between both machines is working I know that I can issue following command ...
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Putty + line drawing = weirdness

Connecting to any debian installation via PuTTY results in a very strange situation: I can have correct display of line drawing, but not for all programs. In particular Midnight Commander and ...
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How to sync the time in Oracle Enterprise Linux 4.8

The timezone is EST as required. But the time is not correct. I tried few things I got by googling. But not working. Could you please help?
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spicy-client assertion failure after computer crash

I usually use spice-client to connect to remote VMs without any problem. Today during usual work my pc freezed (I am strong confident that this is not due to spice) and forced me to brute shutdown. ...
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hostapd and dnsmasq do not provide DHCPOFFERS for non Android devices

I set up a hostapd on my linux laptop and I want my embedded linux tablet to connect to this AP. Therefore I use the following config for hostapd. ##### hostapd configuration file ...
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Page loading is taking time after redirecting the DNS name server to aws EC2 linux instance

I changed my website nameservers to AWS EC2 Linux instance and after that my page where the page hits the database is taking lot of time. Whereas I tried to redirect other website to same instance it ...
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1answer
24 views

The smallest Linux that can support VMWare Workstation and networking

Setting aside the hardware, this is what I need to do: install the smallest possible Linux, but it can support this three features: Connect to a network using Ethernet Firewall Support VMWare ...
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1answer
41 views

Run command for every line of a file in bash, passing lines as standard input

How do I pass some input to a command line by line (ie. invoke the command for every line)? xargs does not work because it passes the lines as arguments, not as standard input. The specific case ...
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24 views

Trying to create poor man's PowerBroker

For those of you who are not familiar with PoerBroker, it is somewhat of a sudo on steroids. I know it has much more than just giving you super user abilities but this time I am only concerned about ...
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umask linux incorrect file permissions

id buser - umask 0022 - group - appgrp directory /sample/sftp getfacl sftp # file: sftp # owner: appsdr # group: appgrp user::rwx user:590:rwx user:15003:rwx group::rwx mask::rwx other::r-x now ...
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2answers
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What is “File Packing” done by an Operating System?

I am reading a book on Operating Systems, and I am confused in a part about Internal File Structure. Quoting from the book: Disk systems typically have a well-defined block size determined by ...
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labstreaminglayer missing liblsl32.so

After installing matlab, I tried to run the ReceiveData function, and it gives me the following message: Apparently the file "path/liblsl-Matlab/bin/liblsl32.so" is missing on your computer. ...
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what mount points can be ro on an remote headless linux box?

I have a linux box running headless and I can't ssh into it. It runs some binary X i wrote and occasionally performs system update by flashing a complete disk image to a backup root partition B. I ...
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17 views

Permission denied because search permissions are missing on a component of the path, after chmod and chgrp

[core:error] [pid 5132] (13)Permission denied: [client 123.123.123.123:50398] AH00035: access to / denied (filesystem path '/var/www/mysite.com') because search permissions are missing on a ...
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6 views

How PAM module reads /etc/shadow

I am developing a PAM module, which is much similar to pam_unix.so, the default authentication module. I also have a small test app that uses this module for authentication purposes. My module first ...
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1answer
11 views

Deleted files in “state” deleted on debian

The command : lsof | grep 'deleted' shows me lots of files from log and tmp directories apache2 770 www-data 12w REG 9,1 148346 1049155 ...
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1answer
20 views

How can I wget if a file has changed?

I have a cronjob that downloads a PDF file from a remote server. The file name is always static but I save it into a directory with the date. The file gets saved as the original save time from the ...
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How to read CPU load with Java on AIX

I checked /proc FS on AIX 6.1 in order to get some values for CPU load but unfortunately I could not find anything useful. Is there any text file in AIX which I can use to get these values similar ...
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Changing terminal Java version - not all options shown

I'm trying to change the JDK that the linux terminal is using to run jar files from 1.6 to 1.7. I'm trying to do this by using the command update-alternatives --config java which is giving me the ...
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19 views

Mac <--> Linux encrypted e-mails

To send encrypted e-mail between Linux and Mac, what are some solutions on both sides? The Mac seems to be settled on GPGTools -- looks pretty good. On the Linux side, I'm using Thunderbird, so, ...
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bash- command does not work with php shell_exec

I want to execute following command on my Ubuntu server using php: android create project --target 8 --name $fname --path ./$fname --activity MainActivity --package $fpack 2>&1 The above ...
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1answer
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Using Tuleap Agile Dashboard

When planning a release using the Agile Dashboard it appears that the slide function - remove the backlog to a release does not work on my environment. Note that I play the role of administrator on ...
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14 views

WiFi card not compatible with router?

I've got a new ADB EA4201N-G router that is used by the way also for cable TV. All PC are connected to this router via WiFi without problems except one - Asus EE PC Flare series. I have installed ...
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1answer
20 views

How do I exclude the following IP address range in google analytics? [on hold]

64.39.96.1-64.39.111.254 and 64.39.96.0/20 here are the instructions, but I'm not familiar with regular expressions. https://support.google.com/analytics/answer/1034840?hl=en ...
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1answer
28 views

How can I clone an entire drive to a smaller drive w?

I have a 1TB hard disk which is set up as MBR with 3 primary partitions. The sizes of the partitions are exactly 250GiB, 250Gib, and 192GiB, respectively. The remainder of the drive is unallocated ...
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clipboard between osx and linux over ssh

My dream: From my osx machine I ssh to a linux machine and can copy paste with a commandline application like xclip or pbcopy, and then be able to use it on my host machine. Example input (mac)$ ...
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1answer
23 views

Determine when reboot required after patching from the command line?

After ssh'ing into a box and using yum or apt-get to patch, I would like to determine when a reboot is required. It would be incredibly helpful to know so we can schedule a reboot in a maintenance ...
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1answer
12 views

.Xresources not read by urxvt running under crouton with i3wm

Chromebook with Linux running via crouton (originally Ubuntu 12.04, upgraded to 14.04). I'm starting X from crosh/shell using: sudo i3 Contents of i3 (comments/usage instructions omitted): ...
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11 views

DPC Latency checker tool analog for Linux

I'm using my server for HFT trading. I like DPC Latency tool http://www.thesycon.de/deu/latency_check.shtml because it allows me to check that "everything allright". On the well-tuned Windows machine ...
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1answer
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why in Linux VM like vmware and XenServer, physical id > the number of cores in /proc/cpuinfo

This was only observed in Linux virtual machines. In /proc/cpuinfo, the physical id could be very large, exceeding the number of cpus. For below example, 4 core systems but the physical id is 13. ...
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2answers
29 views

Can't install openssh under ubuntu 14.04

I am just trying to install openssh-client and openssh-server on my Ubuntu 14.04 machine. When I do sudo apt-get install openssh-client I get the following: http://pastebin.com/YJp04iin (I ...
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1answer
35 views

Is it possible to highlight text with the keyboard only?

I know you can highlight text with the mouse, but can this be done in a terminal on Linux/MacOSX with the keyboard only? I've tried using shift and other commands with the arrow keys to no avail. Is ...
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zfs with heavy write off ssd

Planning a Gentoo Linux install. I have 2 each 128 Gb SATA SSD and 450 Gb SAS near-line 15krpm. I want to mirror each pair, but keep write heavy directories on SAS. Do I need to make two mirrored ...
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knowing own system high quality video support [on hold]

just yesterday i have downloaded a blu-ray rip, about 15 GB, in .mkv format i am talking about a so-called 1080p, a kind of resolution I thought my hardware was able to manage but it did not (btw, ...
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2answers
21 views

Is there a way to make an ssh session act like a local terminal session?

Some of the commands I run want to be run from the X11 display. examples: I have to specify the display to run anything with xset. I can't run vbetool remotely (no display switch). Starting any ...
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Starting a chroot and drop into nonprivileged user home

I need to (temporarily) jail a non-privileged user. I tried something like: sudo chroot --userspec=mcon:users /wherever/chroottarget /bin/bash -i This almost works, but it doesn't set env vars ...