Questions tagged [ubuntu]

GENERAL UBUNTU SUPPORT IS OFF-TOPIC. Support questions may be asked on https://askubuntu.com/. Ubuntu is a free desktop and server operating system based on Debian GNU/Linux. Note that this is for programming questions specific to Ubuntu and http://askubuntu.com is dedicated to answering general Ubuntu questions.

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Lubuntu LAMPP error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory

I Use Lubuntu 18.04 64Bit, I just install xampp for linux When i start the xampp with this command sudo /opt/lampp/xampp start I got error cat: /opt/lampp/lib/VERSION: No such file or directory /...
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10 views

How to increase size of “/dev/mapper/vagrant--vg-root” disk?

I need to increase the usable size of a disk on ubuntu to fulfill my need of more space to my MySql databases. This are my system storage information: Disk /dev/sda: 195.3 GiB, 209715200000 bytes, ...
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Why is my arithmetic operation not working in a while loop? [duplicate]

I am having trouble with my script. My variable is not being increased by 1. My loop goes through every file in the directory. #!/bin/bash -x files=0 find $PWD -type f -print0 | while IFS= read -r -...
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15 views

Transparent http/https redirect for specific process with external http proxy

My maingoal is to hide a specific process (rust program) transparent for the process behind an external http proxy which uses username/password authentication. I can't modify the process sourcecode. ...
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12 views

How to increase storage space on Homestead Vagrant?

I need to learn how increase the storage size of all partitions of Ubuntu on my homestead vagrant system. Currently I came across a annoying problem of lack of storage space in my Homestead/Vagrant/...
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6 views

ffmpeg returns “Invalid data found when processing input” when creating RTSP stream from H.264

I'm trying to create an RTSP stream from an H.264 source on Ubuntu using ffmpeg, however, I keep getting the error prompt "Invalid data found when processing input". I'm working on an AWS DeepLens. ...
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14 views

How can I run php page from c++ program and send data to php page from c++ program? in Ubuntu [on hold]

I want to send data from C++ program to php page , to make php insert the data in mysql database , I want to do that on ubuntu which I installed LAMP on it. I have search but not find detailed result,...
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Hard drive read only on Ubuntu

Suddenly few days ago one of my hard drives on Ubuntu became read only. I can't copy any file to it or delete any file from it because it says I don't have permissions to do that and every file I open ...
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1answer
13 views

Sync big data from droplet to Digital Ocean Space (S3)

My web project static folder's size is around 10 GB and it is stored in Digital Ocean Droplet. Today I tried out Digital Ocean Space and idea was to copy and sync all my storage files to the new space....
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3 views

tmux send-key schedule script

I am using a tmux session to have w3m opened. I need to find a way to schedule a page reload every 30 seconds. I thought the solution would be a script that sends a send-key command and reloads the ...
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12 views

Install and run Tomcat 8 on Ubuntu 16.04 Error

I need install tomcat 8 on Ubuntu 16.04. I use this guide Download tomcat from this place When I try to start tomcat, an error appears: Job for tomcat.service failed because the control process ...
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1answer
19 views

Cronjob every 3 hours and cronjob every 3+1 hours

I have two sets of cronjob I want to run. First one should run every 3 hours and the second one should run also at every 3 hours but one hour later than the first set. What is the correct syntax? // ...
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6 views

sudo pycurl_ssl_library=openssl dpkg-buildpackage -rfakeroot -b throws error 2 [on hold]

I was planning to use Wfuzz in kali linux and following the installation steps in https://github.com/xmendez/wfuzz/blob/master/docs/user/installation.rst for Installing pycurl against openssl and ...
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0answers
9 views

Use localhost alongside valet linux config

I have cpriego/valet-linux installed and it's working properly. All my applications run with .local tld which is fine. I'm trying to use w3c-geolocation javascript api which requires that the url of ...
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4 views

Plesk Login Page ERROR: Uncaught Error: Class 'Form_View' not found in /opt/psa/admin/plib/PleskException.php:69

When I try to open the Plesk Login Page via :8443 I get the Error: ERROR: Uncaught Error: Class 'Form_View' not found in /opt/psa/admin/plib/PleskException.php:69 Stack trace: #0 /opt/psa/admin/plib/...
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6 views

Toggle explorer in VS Code using vscodevim?

How can I toggle the explorer in VS Code using vscodevim? I know that I can enter insert mode and then press ctrl+b, but what is the vim way?
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How to use Pyinstaller with Linux Ubuntu

I'm new to programming of any kind, and to Linux. I have written small programs before, and thought the next step would be learning to compile my code into an executable. And so I found pyinstaller,...
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system bootorder not found initializing defaults reset system

I just removed Linux from my laptop, by deleting its folder "ubuntu" from the UEFI directory. After that, I tried rebooting, but now it's stuck in a boot loop. The Dell logo pops on but then flashes ...
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1answer
14 views

how to pass a variable to a command in javascript

i want the variable msg to be added to the path like /home/user/map/'msg'. msg is a string type.Anybody knows how? thanks. socket.on("savemap", function(msg) { console.log(msg); var ...
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2answers
16 views

Build emacs ubuntu, libraries not found

I am trying to install emacs 26-1. When i run ./configure, i see the following error : configure: error: The following required libraries were not found: libXpm libjpeg libgif/libungif libtiff ...
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20 views

Authentification problem with docker daemon during docker login

I have a problem with logging in to docker on a remote server of which I am not the admin. I am using Ubuntu 18.04. I talked to the admin of the server, who told me that the hash of the password ...
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1answer
34 views

AWS disk space full

I am facing disk space full issue on AWS. But when I check df -h I see my main drive using only 60% of the space Filesystem Size Used Avail Use% Mounted on udev 31G 0 ...
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10 views

Siege (4.0.4) - What does this mean “SSL routines:ssl3_get_record:wrong version number”?

We are working with a WordPress site which we are trying to load test using Siege (4.0.4) and I keep getting an SSL error along with similar ones associated.... SSL routines:ssl3_get_record:wrong ...
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1answer
45 views

My program only works when I declare an extra array

I'm building a simple shell for a class. There are two programs in my shell directory, called "alomundo" and "echo". "./alomundo" prints "Alo mundo!" to console, and ./echo executes the ubuntu echo ...
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2answers
29 views

Delete environmental variable from docker image

I have looked around online and tried the obvious route (explained below) to remove an environmental variable from a docker image. 1 - I create a container from a modified ubuntu image using: docker ...
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Tomcat -> Iframe -> NodeJs .. SSL

I have the following achitecture: 1) Tomcat-Server running on Port 8080 When URL is called, Tomcat delivers a login-page and handles the login. 2) On successfull login, Tomcat delivers a iframe ...
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0answers
11 views

Reboot to Bootloader with shell script to multiple devices hangs if more than one device attached

Full disclosure: I'm new to both Android development and Linux. I have a shell script to loop through connected devices and perform ADB commands. while read -r udid device usb product model ...
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1answer
27 views

clangd on linux cannot find default headers

I've installed the newest LLVM toolchain from the official PPA, including clang, clang-tools-extra, lldb, lld, libc++ and libc++abi. I'm trying to use clangd with emacs + lsp. All works fine except ...
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1answer
35 views

remote profiling neo4j using visualvm

I am trying to monitor GC information using VisualVM from local laptop and connecting to Neo4j (enterprise) application running on Oracle JDK 8 on remote EC2 instance running ubuntu 16. I am able to ...
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0answers
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WARNING: erroneous pipeline: no element “kvssink”

I'm trying Kinesis Video Stream via https://docs.aws.amazon.com/kinesisvideostreams/latest/dg/gs-send-data.html I have already installled it Success in building the Kinesis Video Streams Producer ...
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1answer
19 views

cc1plus: out of memory when building dlib

I am trying to install dlib in order to install the python package face_recognition. While doing so I ran into the following error: ubuntu:~/dlib$ sudo python3 setup.py install --yes ...
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1answer
44 views

Kotlin could not find the required JDK tools in the Java installation

When running ./gradlew clean build I get following message: > Task :compileKotlin FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':compileKotlin'. &...
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3answers
49 views

How do I delete a row from a file while iterating over rows in a file?

I'm Running Ubuntu 16.04 LTS with Python 3.6.8 and I have the following code that allows me to iterate over lines in a file where I process each row and append the data to a database. I need to ...
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0answers
13 views

Uninstall DKMS Linux [on hold]

I just installed my first ever Linux OS (Ubuntu) on my brand new laptop. I have problems with my network adapter not showing up in the settings. However, I managed to install a module that should ...
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1answer
14 views

Prestashop 1.7 can"t access to api

I can't access to the api on my prestashop test-shop. Here what I did : The webservices is active and a key is created : screen copy of my admin The rewrite mod is active on Apache : Apache ...
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0answers
9 views

Python xlrd not reading the cells with formula

I am using xlrd to read an excel workbook and to perform some operations on it. But the issue I am facing while reading the data is I am getting blank values where the cell contains else in the non-...
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1answer
17 views

nginx website on Ubuntu 18 not loading on public IP

I am trying to host a website via nginx on Amazon AWS EC2 Ubuntu 18.04. I started by following this tutorial. I ran sudo apt update and sudo apt install nginx. Then, I ran sudo ufw allow 'Nginx HTTP'. ...
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LPTHW Exercise 47: nosetest ran 0 tests [duplicate]

The exercise: http://cglab.ca/~morin/teaching/1405/lpthw/book/ex47.html This is the output I am getting when I am running nosetests: (lpthw) sj@sj-B85M-D3H:~/projects/ex47_top$ nosetests -----------...
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0answers
19 views

How to implement code folding in ubuntu terminal?

I'm sure you would've noticed how console.log works on chrome terminals while displaying objects. Where we can expand and collapse the object properties. so that bigger objects can be displayed in an ...
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0answers
12 views

what is path “/”

PORT STATE SERVICE 80/tcp open http | http-brute: |_ Path "/" does not require authentication
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0answers
19 views

Battery life after installing ubuntu on macbook pro [on hold]

I don't remember whether it was Yosemite or Sierra on my MacBook Pro late 2011 but the average battery life was about 5 minutes regardless of opened applications. After installing Ubuntu, this time ...
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0answers
4 views

plt.show() does not bring up anything in matplotlib.pyplot

I know it looks like this question has been asked many times but i have gone through the answers but have not been able to fix the problem import matplotlib.pyplot as plt plt.plot(range(20),range(20))...
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0answers
25 views

Installing and running Auto-Sklearn in Windows 10

I am trying to install Auto-Sklearn so I can finish my research on Auto-ML I tried installing Virtual Box on my computer and use Ubuntu but it made my computer die. So I had to find another solution ...
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0answers
26 views

No Errors in Eclipse. Errors in the Terminal [on hold]

So I'm working on a project in Eclipse. I've had some errors a few minutes ago but i've fixed them. Then I tried to run the program but nothing worked. No errors were popping up. Only warnings. So i ...
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0answers
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Restart needed to connect to public WiFi network Kubuntu 18.04

I've never been able to figure out why I could never connect to public WiFi networks using Kubuntu 18.04 (it also happened on 17.04). That is, until I figured out a restart does allow me to connect ...
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1answer
20 views

The type JList is not generic;

So I'm working on a project with java in Eclipse. I've been working on it for so long and i only had a few Errors left. They were just some library issues. Now after i've fixed them, suddenly 48 ...
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0answers
23 views

How to block a specific IP connection to the server: 25? [on hold]

The logs appeared suspicious activity: warning: unknown[141.98.81.189]: SASL LOGIN authentication failed: authentication failure disconnect from unknown[141.98.81.189] ehlo=1 auth=0/1 rset=1 quit=1 ...
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3answers
31 views

Getting data from Dataframe and passing it into a new empty DataFrame

I have a DataFrame that reads from a csv file. I used loc function to get data from the first csv file successfully. My problem is that I'm unable to add the data I got from the first csv file to add ...
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0answers
21 views

Getting an error while installing hybris b2b in ubuntu

I'm trying to install hybris b2b in my local machine which is using Ubuntu OS, I'm getting the following error. external process returned non-zero exit code, command: [sh, -c, export PLATFORM_HOME=...
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0answers
12 views

Is there any way other than Iptables or ebtables to drop or block packets from isc dhcp server on ubuntu?

I tried to block numerous dhcp requests using iptables,ebtables but none of them succeed in blocking the requests. After my researches, I found out that DHCP uses raw packets that those firewalls can'...

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