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.
0
votes
0answers
8 views
Fedora 25 Workstation Image for VirtualBox
For some odd reason, everytime I install Fedora 24's ISO on Virtual Box, after the installation is complete, and I reboot the image, it always goes back to the installation screen (instead of a login ...
0
votes
0answers
22 views
A little complex alias in practice [duplicate]
First of all, my intention for this question is not to discuss the "badness" of the mentioned Bash alias. Please avoid such comments and / or answers.
Rather than that, for me to get to know, why I ...
1
vote
1answer
12 views
“netstat -p”/“ss -p” not showing the process of a listening port
On my CentOS 7, at one point, sudo ss -plt listed a port marked as LISTENING on *:30565, but there was no information whatsoever in the process column of its row. The other listening ports were ...
1
vote
0answers
8 views
Linux fgrep how to extract “only_words_in_my_language” from a big “MIXED_WORDS” file?
I want something to extract "only_words_in_my_language(900kb)" from a big "MIXED_WORDS(160mb)" file and for that i used the syntax bellow but with poor results:
fgrep -w -f "only_words_in_my_language....
0
votes
0answers
12 views
Recover LVM after overwrite with dd
Know that my chances are small (if even there are :().
I have a HDD of 500G with 1 logical volume (ext4). By accident I overwrote it with an ISO of 1,5G:
dd if=linuxmint-18-xfce-32bit.iso of=/dev/...
0
votes
0answers
13 views
Linux Transcoding Media Server
Currently I have my whole movie collection an an FTP Server. I access them via KODI.
Now, O want access to my files externally. Therefore it would be great if my video files are live transcoded (on ...
4
votes
3answers
58 views
How can I copy a file from one server to another with the help of an intermediate server? [duplicate]
I have three linux servers:
1. Database Server 10.10.10.10
2. Application Server 10.10.10.52
3. Backup Server 10.10.10.55
There is a direct connection between Database and Application servers and ...
-5
votes
0answers
17 views
a particular website is runing slow rest is working fine (apache server interview question) [on hold]
a particular website is runing slow rest website is working fine (apache server interview question). what are the steps we need to check.... Please share answer if anyone knows.
-4
votes
0answers
18 views
how we start service on 100 servers at a time using script [duplicate]
Interview question how we start a particular service on 100 servers after patching using a script.
0
votes
2answers
24 views
Do Ubuntu Linux apps work on Kali Linux?
Do Ubuntu Linux apps work on Kali Linux?
linux ubuntu-14.04 kali-linux
I'm new to Linux and I wanna know if apps that can be installed on Ubuntu can also be installed on Kali.
0
votes
1answer
24 views
curl, wget doesn't return anything
am trying this curl -I zomato.com | head -n 1
and am not getting any response.
% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed
0 0 0 0 ...
0
votes
1answer
13 views
btrfs revert snapshot of root FS
Before upgrading to Fedora 25 I did a btrfs subvolume snapshot / /f24. I hat to little free space, so the update failed. Now the question is, how to revert the snapshot? I already booted into the ...
1
vote
1answer
25 views
Possible to ubuntu mirroring mouse keyboard?
is there a anything available that can "mirror" keyboard and mouse inputs to multiple windows? Like I have a "master"-window in which I click and write and the input from there gets send to several "...
0
votes
0answers
20 views
How to transfer data with high speed through USB? [on hold]
I'm trying to find a way to send/receive data through USB port of an ARM processor on a zynq board (ZC706) running petalinux.
I searched on the net and I'm totally confused where to begin. I found ...
-9
votes
0answers
32 views
Answere these questions pls [on hold]
This are questions for an exam of mine and i dont understand anything since its the teachers first time teaching. . . PLS HALP
1. Describe different Red Hat product and packages with explanation ...
2
votes
2answers
108 views
Read file line by line and put in other string
I want to read file line by line and put its content to other string in specific place. I have created the below script but unable to put file content in that string.
File: cat /testing/spamword
spy
...
0
votes
0answers
12 views
how to install pearl desktop environment on ubuntu 14.04?
I want to try installing desktop environment called pearlDE for ubuntu. if you know theme for pearl desktop environment , please tell me also . thankyou
0
votes
1answer
15 views
Preserve systemctl colors while redirecting to a file [duplicate]
My Linux server is running SystemD (RHEL/CentOS/Debian/Ubuntu...).
I would like to redirect the output of systemctl list-dependencies to a file, but I want to preserve the ANSI colors (red or green ...
0
votes
0answers
6 views
Linux Sees and Can Write to HDD but Windows Can’t [migrated]
I have 3 NTFS partitions on my 2TB Seagate HDD. Only recently, my drives have stopped being recognised in windows.
I can look in device manager with hidden devices turned on and see that the device ...
0
votes
0answers
26 views
Files in ram (tmpfs) representing a single-producer multi-consumer buffer
constraints: My system has 250MB RAM memory available. The amount of
data generated by the producer lies around 5MB/sec. I need to provide
a buffer of around 30 seconds. So around 150MB...
...
1
vote
0answers
26 views
Get normal file from block device in Linux
In Linux, I can access a normal file as a block device with the loopback device, so I can mount it, access individual partitions, etc. But what if I needed to get a normal file from a block device, so ...
1
vote
1answer
31 views
Does dnf have an equivalent to apt's “build-dep”
something like
sudo apt build-dep apache
Supposedly installs all the dependencies needed to build apache from source (I've never used it before).
Is there an equivalent command for the dnf package ...
1
vote
0answers
30 views
Touchpad and keyboard not working
Today after turning on my laptop, running debian sid, the boot went normal.. I introduced the decrypt password and afterwards the username + password to login onto desktop. However when the desktop ...
0
votes
0answers
17 views
Linux to Windows remote desktop with GPU [on hold]
i have to edit a video. The only problem is, that my editing program doesn't work on linux (HitFilm).
Now I have another workstation running Windows.
So I want to use this workstation to run, while I ...
0
votes
0answers
22 views
Hdd not seen in bios after installing Fedora
So I am currently having this issues : my hdd is not listed in the bios boot menu after installing Fedora in dual boot with Windows 10. To check if all the partitions are ok, I used the Fedora live ...
-1
votes
0answers
22 views
How to dump all traffic when I open a website by tcpdump
I have to monitor all traffic that is generated from a website.
I know its simplest solution is to use tcpdump. But my scenario is little different.
When I open a website, it shows me a log of ...
0
votes
0answers
20 views
unresolved symbols on a linux-uclibc system
I'm trying to run an openjdk-8 on a linux-uclibc ARM embedded system.
The target system uses a kernel-4.5.7 / uclib-ng-1.0.16, but I had to build the jdk using a toolchain (openembedded) built upon a ...
1
vote
1answer
25 views
use loop variable for calculation bash
for i in {0..9} do
T=$(bc<<<"8+$i*0.5")
echo $T
done
I get :
syntax error near unexpected token `T=$(bc<<<"8+$i*0.5")'
I believe the problem is the $i. What am I doing ...
0
votes
1answer
10 views
screen inside screen [duplicate]
In my terminal I run a screen. Obviously I have several tabs and in one of them I connect to a remote server. In this one I have a detached running screen, I attach it but I can't switch its tabs.
PS:...
-1
votes
1answer
32 views
List all the processes running on Linux cluster servers
I am running GNU/Linux EDT 2012, it has 11 cluster servers, is there a way besides remote sign on to find out processes running on all the 11 servers at once? I tried running ps command on one of the ...
3
votes
1answer
27 views
for convention in which folder should I place no-installable applications?
I've just downloaded Eclipse Neon and I don't know in which folder should I place it, also I want to create an entry on Gnome's menu, how can I achieve that?
0
votes
0answers
12 views
How to disable spamassassin and spamc?
SERVER: Linux (RHEL 6, kernel version 2.6.32-573.8.1.el6.x86_64)
The server has postfix / spamassassin and I want to receive emails from external server.
But I tried to send a email from my PC, my ...
1
vote
1answer
16 views
How to connect to X app via VNC which was by xvfb-run?
When I run Xvfb server directly, x11vnc can attach to the display fine as per Wikipedia page.
However I'd like to achieve the same by running the X app using xvfb-run.
Here is my attempt (to run ...
0
votes
1answer
21 views
Possible to show Metasploitable (Linux) password in plain text?
Is it possible to show or retrieve Metasploitable (Linux) password in plain text? I already have root access.
All I find when searching is how to crack it. I'm wondering if there is a simple way to ...
-2
votes
0answers
22 views
check validity of input username [on hold]
I want to write a bash script that read an input and then check whether the input
is equal to any users of ubuntu then login else again ask you to enter an input.
function f{
echo"please enter a ...
0
votes
0answers
16 views
Debian 0003:1B1C:1B15.0002: usb_submit_urb(ctrl) failed -1 Error
I need help from you please. I just recently installed my new Debian Linux on my PC and while it's starting I'm getting an error which is pretty annoying because I have to wait like 1 minute till it ...
0
votes
2answers
87 views
Need help with this script which looks up every .c file in the current directory for the strings printf or fprintf [on hold]
Write a script called to look up
-1
votes
0answers
13 views
Unable to find Pentest folder in FileSystem Kali linux [on hold]
I am testing Kali linux infectious media creator but problem is this the infectious file is saved in /root/pentest/exploits/autorun/ but the pentest folder not present in filesystem here is the screen ...
0
votes
0answers
3 views
Triple boot mid-2012 MacBook Pro, rEFInd linux boots Windows?
My MacBook Pro has two internal hard drives, and they're now laid out like this:
SSD
Mac HD
Bootcamp
SATA
Storage (for Mac)
grub/bios/boot
swap
linux mint
During the Mint installer, when asked ...
0
votes
0answers
5 views
Systemback and grsecurity kernel
I use grsecurity-hardened kernel and I can't get Systemback to work. On attempt to create backup it drops error: "An error occurred while opening the following file: /etc/passwd" I guess it could be ...
0
votes
0answers
5 views
sftp proxy setup to connect to remote server which is not in the same network
I'm new to bee to the unix world, I have to connect to remote server which is not in the same network I'm working. I have the username, ip address and password for the server.
i tried this command to ...
0
votes
0answers
24 views
Forbid commands without leaving arguments [on hold]
I share my pc with nooby users. one of them is lil kid, and I use, for example alias chmod='echo "forbidden."' not to allow them to restrict files to each other. they are nooby, yes, but they may use ...
1
vote
1answer
22 views
How to prevent closing a python app in linux?
I am working on a project that uses a raspberry pi for it's computing purposes. It has a touch screen with it that user can choose the options from it. I want to install a light linux distro on this ...
0
votes
1answer
28 views
Kernel Panic on CentOS - Google Compute Engine Instance
I'm getting a kernel panic error in a CentOS instance of Google Compute Engine. I'm able to see the error and already figure out how to solve it, but I can't get into the GRUB menu trough the serial ...
0
votes
0answers
25 views
Kali on RPI, can't upgrade Kernel and install current headers, or find old headers to build
I'm not a total Linux noob, but I am new to Kali and RPi.
I have a Raspberry Pi 2B and installed Kali Linux 2016.2 with kernel 4.1.19-v7 that I downloaded from the Kali website. It is working well, ...
-1
votes
0answers
7 views
Multicasting using UDP - UFTP
Can someone help me how to multicast using encryption in uftp ?
I've tried all the possibilities ,and unable to multicast !!
Unicasting with client-generated key is working fine
0
votes
1answer
31 views
bash one-liner: set variable to output of command or to default value if output is empty
I know that in Bash you can use the syntax
editor=${new_editor:-/usr/bin/vi}
which will set editor to new_editor if the variable new_editor is not empty and to /usr/bin/vi otherwise. Is it possible ...
-1
votes
1answer
20 views
how to stop multiple IP Address been issued to clients [on hold]
Greeting Guru's
I am using CentOS DHCP and DNS Server. Recently, I have notice that the DHCP has been issuing multiple IP Address to some clients (Phone/Laptop). This has caused IP Conflict in the ...
3
votes
3answers
43 views
How to capture a temporary created file?
I have a program which generates some shell script, then runs and deletes it. Is there any chance to get a contents of this script without of intrusion into the program which generates it?
0
votes
1answer
23 views
Pipe line different behaviours for sort and grep
It is strange to me that pipe line | behaves differently for the following commands:
curl http://norvig.com/big.txt | sort
curl http://norvig.com/big.txt | grep employ
In the first command, the ...
