These questions are about Linux in general -- NOT specific to a particular distribution. If the question just happens to be in a Linux environment, please specify your Linux distribution in the body of your question, but do NOT use the /linux tag.

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1
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1answer
15 views

Ranger file manager - Open gnome-terminal instead of xterm

I recently started using Ranger as my default file manager, and I'm really enjoying it. Right now, I've managed to change rifle.conf so that when I play audio or video from Ranger, mpv opens in a new ...
0
votes
1answer
24 views

What's the fastest way to install Postgresql on Wind River 7.0?

I'm new to bare-bones Linux systems and need to install postgres on a wind river Linux distribution. My plan was to install yum and then use yum to install the postgres rpm. I've tried to install ...
0
votes
0answers
12 views

i whant to clean the shared and the buff/cache memory [duplicate]

I want to clean the shared and the buff/cache memory, I'm not expert in linux but I want to learn. I have 2 gb of ram when i go through firefox the memory used is 900-1000 mb is this normal?? ...
-3
votes
1answer
23 views

Is there a process that is always running that uniquely identifiers a user in linux. [on hold]

Is there any such essential process launched in the user space... ALso should take care of headless servers
0
votes
0answers
12 views

Grub Rescue 2 Problem

I recently deleted partitions containing Kali Linux and now my computer boots into grub rescue mode. When I tried to boot to Kali Live from my flash drive, there was an error with a failure to read ...
-1
votes
0answers
9 views

Linux failed reboot from suspend

The Linux box installed DDR3 8GB Ram failed to reboot from suspend. But the box with DDR2 4GB reboot fine from suspend. Everything is the same. The motherboard is Gigabyte G41M-Combo. The kernel is 3....
-1
votes
0answers
21 views

How can i parse the data using multiple delimeters?

Input data is 61418406721,61407219329 username=elsupport@abc.com.au password=clas2012 text= Clas SGB QLD&WA Report - Prop Appl 0 $0.00M. Prop Approvals 0 $0.00M. BMS Appl 0 $0.00M. BMS Approvals ...
0
votes
0answers
25 views

Could you please recommend me a further reading? [on hold]

I am currently reading "The Linux command line by William E.Shots". What should I read next ? I am interested in Linux OS and trying to be a super-user within a few years of reading and practicing.
1
vote
0answers
16 views

CUPS doesn't count the copies of documents

I have a Samsung ML-5515DN connected via usb to a Debian 8 pc, with CUPS installed. This pc works like a printer server and I have connected to it a Windows 7 pc. In windows I have configured the ...
0
votes
0answers
22 views

cant find sdb under /proc/partitions [on hold]

[root@localhost /]# cat /proc/partitions major minor #blocks name 8 0 16777216 sda 8 1 512000 sda1 8 2 16264192 sda2 11 0 1048575 sr0 253 0 ...
1
vote
2answers
48 views

parallel processing using xargs

How to execute a bash script in parallel for each line ? Actually, I will be tailing to log file and for each line found, I want to execute script in background something like below: tailf logfile....
0
votes
1answer
21 views

Docker image creation using RPM

I used the docker file bellow to create a docker image So, my problem is, when I was building it, the below error appeared. please help me solving it.
2
votes
1answer
23 views

How to set cups to use all paper trays on a printer?

Our sales application runs on Linux. We have our printers set up in CUPS using the supplied Xerox Global Print Driver. In each printer settings it has a drop down for what paper tray to use, but you ...
2
votes
0answers
50 views

-bash: /root/.bashrc: Permission denied

I have this server running Centos 7. Every time I log in (remotely on locally) with every user I get an error. If i log as root I get -bash: /root/.bashrc: Permission denied If i log as a normal ...
-1
votes
0answers
39 views

Need scrpit to run progam with variable files [on hold]

Need a script to automate this Move file mv /somedir/(whatever).apk /data/local/tmp/somedir Change Permissions if not change them /data/local/tmp/somedir = rwxrwxr-x /data/local/tmp/somedir/(...
1
vote
1answer
45 views

Executables in /usr/bin not showing for permissioned users [on hold]

I installed xvfb-run using yum under root, and I can see the executable in /usr/bin with the permissions -rwxr-xr-x. When I login under a different usr which falls into the 'other' permissions, the ...
3
votes
1answer
28 views

Partition table consuming 32K of data?

I create a file of 100MB size, and using losetup assign it to /dev/loop0. Consequently I use fdisk to create an empty DOS partition table, and a new partition that spans the entire disk. One thing ...
0
votes
0answers
12 views

Linux XKB keyboard remapping with function keys

I need to create a keyboard layout in Linux where I can map a key to a function key. However, I didn't see where there is a symbol to do this. So basically I need something like: key {[2,at, f2, f2]}...
3
votes
2answers
57 views

Can you tell if a file has been renamed?

Many tools out there for syncing files aren't quite right for syncing you're home directory. Because of this, and to learn Ruby, I've been working on my own sync tool. An issue I've encountered, ...
0
votes
0answers
12 views

Grub2 Rescue Help

I installed Kali Linux and was able to dual boot it with Windows 8.1 on my laptop. I recently deleted a few partitions in order to get rid of Linux since I rarely used it. On reboot I saw the grub ...
1
vote
1answer
34 views

/ Owned by postfix:root after installing iRedMail

I followed this tutorial to install iRedMail on my CentOS 7 x64 System: https://www.digitalocean.com/community/tutorials/how-to-install-iredmail-on-centos-6-5-x64 Why the *"$@*3 is / now owned by ...
0
votes
3answers
18 views

How can I sort specific lines of strings from this file on my Ubuntu Server?

I have a very long file containing around 2,000 groups of information that look like this: http://pastebin.com/raw/vKxRNviT I need to organize them by dollar-balance from highest to lowest. I only ...
0
votes
0answers
15 views

server load and performance testing

Dears, there are some cluster of servers that are responsible for a telecommunication company databases. the OS's was Linux Redhat installed on bare metal till now, but all the clusters are migrating ...
1
vote
1answer
23 views

ttyACM0 and sdb created from one physical USB device

I have a USB device based around the Nordic Semiconductors nRF51 SoC. Once I plug it into my Ubuntu machine it triggers the creation of both /dev/ttyACM1 and /dev/sdb. So far, I've perceived the /dev/...
1
vote
1answer
17 views

Apache httpd logging

I have a couple of questions about Apache httpd logging on Scientfic Linux 7 Apache logging seems to be using some kind of hard-link from the configured logs directory /etc/httpd/logs to /var/log/...
2
votes
1answer
23 views

Is it possible to reuse the slave end of a PTY after closing it?

After the slave end is used (open(), read(), write(), close()), the master's read() finishes and returns with an EIO error. But I was expecting to be able to open()/close() multiple times the slave ...
0
votes
0answers
10 views

Evince missing font in application menu

In Evince, the application menu seems to be missing a font. How can I fix this? I'm using Linux Mint 17.3
0
votes
3answers
40 views

No sound on fresh install of Debian

I'm on a fresh install of Debian with i3 and I'm quite new to Linux. I have both pulseaudio and alsa installed but I cannot get sound to output. I would have posted any command outputs but I'm not ...
1
vote
1answer
43 views

How to power down display on terminal?

I would like to power down/up my display from the terminal. Right now I have: setterm --blank force #wake setterm --blank poke Which gives a blank screen; but active screen (screen still receives ...
2
votes
1answer
102 views

Does pkill kill itself (and its parent processes) last?

I'm writing a bash script that kills a bunch of processes selected by certain criteria and then quits. The only problem is that those criteria apply to the script and its parent processes (bash, sshd) ...
-3
votes
3answers
58 views

My NIC speed is 1g per second why scp speed is 120MB per second

My Network Interface card r/w rate is 1000MB/S, but when I scp one file it shows the copy speed is 120MB/S. such as: scp test.gz localhost:/data/test.gz
2
votes
0answers
32 views

How Widely Used is Polkit? [closed]

I'm writing a program that requires root access. I'm hoping to use polkit for privilege escalation instead of just erroring out when the program is not run from root or via sudo. Is polkit used on ...
0
votes
0answers
23 views

Traffic between two separate openvpn servers' clients

I have two Openvpn servers on two separate linux boxes, with different settings and clients. Lets call them server A and server B. When I connect to server A, I want to be able to access server's B ...
-1
votes
0answers
19 views

RouterOS can't be installed on KVM hypervisor [closed]

I have installed KVM + Virtualizor on my Dedicated Server. I want to install RouterOS on a virtual machine. To do so, I created a virtual machine and mounted the RouterOS's iso file then started the ...
0
votes
0answers
21 views

Redirect keyboard input to unfocused program

I'm looking for some help with a computing issue. I'm running Openbox 3.5.2 on Raspbian/Pi3 and a single monitor. I want to have one program focused and in fullscreen while the keyboard outputs to ...
0
votes
0answers
30 views

Problem installing nvidia driver 920M on ubuntu 14.04

I am a Linux beginner. I installed ubuntu 14.04 alongside win10, on my new asus laptop. My system is powered by a geforce 920M. The problem is that after I install the nvidia driver (The system ...
0
votes
0answers
18 views

Trouble With Debian Window Focus On Mouse Click

I recently installed Debian, the version is here below : Linux version 3.16.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt25-2 (2016-04-08) ...
0
votes
0answers
28 views

Browse remote machine files in Nautilus

I'm running old Debian machine: Distributor ID: Debian Description: Debian GNU/Linux 5.0.2 (lenny) Release: 5.0.2 Codename: lenny And I'm using Nautilus file browser in it: I'm missing "...
2
votes
1answer
31 views

unable to install centos on my windows 10 laptop making it dual boot

After hearing the news that CentOS 7 had been published, I decided to install it on my computer. I downloaded the ISO image from the CentOS official website (the one named CentOS-7.0-1406-x86_64-DVD....
0
votes
1answer
22 views

Transparent encryption

I'm designing an industrial embedded system which needs some encryption. I know encryption will slow things down quite a bit since my media will be either compact flash or SD. I really only need to ...
0
votes
2answers
34 views

How do I make a server automatically move files?

I have a folder and I would like all the files that are put into that folder to instantly be moved to another folder. Is this possible.
2
votes
0answers
20 views

Make bootable disk from tar archive

I have a compressed tar archive from a SLES 11 root directory. I'd like to boot another machine with a live linux, extract my OS archive on a disk, and make the disk bootable. Is there any easy way to ...
3
votes
0answers
11 views

What is the default behaviour of IPv4LL on Linuxsystems?

I'm looking for a good source and confirmation about Dynamic Configuration of IPv4 Link-Local Addresses. The rfc Dynamic Configuration of IPv4 Link-Local Addresses didn't really help answer my ...
1
vote
1answer
35 views

Purpose of Physical Extents

Today in class we are learning about logical volume management and I'm trying to find out what the actual purpose of physical extents are. I know what they are defined as and I understand how to do ...
0
votes
1answer
64 views

Where is the log when someone ssh my machine?

When someone logs into my machine through ssh, where is that log file saved? I am using Red Hat 4.8.5-4
3
votes
0answers
29 views

filter out certain processes and/or pids in ftrace?

I'm not sure if I'm thinking about this the right way (and please correct me if I'm wrong), but the following is my understanding of ftrace. In /sys/kernel/debug/tracing, there are the following ...
2
votes
0answers
35 views

GNU/Linux OOM (out of memory) freezes - solution ideas

Explanation While working with older machine with swap on and 2 GB ram, I frequently encounter behaviour well described as freeze: here, what is the best way to prevent out of memory oom freezes on ...
0
votes
1answer
29 views

How to setup DHCP Relay in Debian 8?

have three VMs. One VM is a DNS and DHCP server, one is a Linux router running Debian 8 and the last VM is a test machine. I am trying to configure the Debian 8 machine as a DHCP relay. I have ...
-3
votes
0answers
40 views

How to run asterisk commands in linux debian terminal? [closed]

I need to run an asterisk command in my linux terminal, but whenever I try to execute my command, it says: -bash: asterisk: command not found How do I configure my linux server to be able to run ...