Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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0
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1answer
97 views

ssh authentification without-password is not working anymore

I used to run an ssh without password on my servers (after I copied my id). Today, it stopped working, here is a debug: OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /...
0
votes
1answer
1k views

GRUB partition error

This is the first time this has happened to me. I don't use Linux on a regular basis, except for some project work. I had logged in today, finished my work and restarted it so I could go into Windows ...
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0answers
14 views

convert openwrt rules to ubuntu 14

I have the following rule for openwrt firewall & network. Can anyone convert this to ubuntu 14? from /etc/config/firewall (openwrt) to ubuntu 14 command line: config ipset ...
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0answers
18 views

Cannot find install-kernel-pkg

I am running Ubuntu 16.04 and am experimenting with building the kernel from source. I am at the step where I want to install the kernel using: new-kernel-pkg --mkinitrd --install --make-default --...
1
vote
1answer
1k views

org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed] while running spoon.sh in ubuntu

When I am running spoon.sh file in Ubuntu I am getting the following error: [santosh@sbx data-integration]$ ./spoon.sh /home/decathlon/Pentaho-5.0.1/data-integration org.eclipse.swt.SWTError: No more ...
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0answers
285 views

How to set HDMI sound output as default on Ubuntu 16.04

I am using an old laptop as a dvd player, so I want the sound to always play via HDMI, but whenever I suspend the sound switches back to the internal speakers. I can change the sound back to HDMI with ...
0
votes
2answers
3k views

Unable to connect INTEX 3.5G (aka 普创E003) Wireless USB modem in Ubuntu 12.04 LTS

Can anyone help me out on connecting INTEX 3.5G 7.2 Mbps (aka 普创E003) Wireless USB modem in Ubuntu? Initially it is recognized as a storage device and the modprobe cmd does not create any impact on it....
1
vote
2answers
88 views

Can not ping other nodes in private network

I am setting up a small cluster (four nodes running ubuntu14) and I have this configuration: # Internet and lab - 192.168.10.0/24 iface eth0 inet dhcp dns-nameservers 192.168.100.1 # privte network ...
3
votes
2answers
134 views

Strange things happen when I close my laptop lid

I recently bought a new HP Spectre x360 laptop and installed Linux (Ubuntu 16.04 LTS 64 bit) for the first time. I have noticed a few small bugs but something very strange happens when I shut the ...
1
vote
1answer
955 views

Make bluetooth device invisible / disable incoming pairing

I am using the bluez package for my bluetooth usb dongle on ubuntu server. I want to be able to initiate bluetooth connection from the dongle to a device, however a device itself shall not be able to ...
0
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2answers
3k views

Linksys AE3000 install on linux

I bought a Linksys AE3000 wireless adapter hoping I could use it on my Ubuntu 12.04 box. I found a website that walked through using it, but it didn't work. I edited rtusb_dev_id.c to add: and then ...
1
vote
1answer
608 views

How does apache determine what directory to show from public_html?

I am using Ubuntu 12.04 and have configured apache to serve from ~/public_html. I am trying to serve some directory contents over http on LAN. When I did the following: ln -s ../Videos/android-...
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1answer
1k views

dota 2 graphics problem in ubuntu 14.04

i installed ubuntu 14.04 in my laptop. then i installed steam and finally dota 2. but the graphics are very bad. i have amd raedon 7400 in my laptop. it seems like dota 2 is not running through my ...
3
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2answers
55 views

All services of a user are killed when running multiple services under this user with systemd

We're using Ubuntu 16.04 LTS and want to use multiple Tomcat installations which should start at boot time. One of these Tomcats would host a Jenkins which will deploy a webapp onto the other tomcat ...
2
votes
1answer
37 views

Incorrect $HOME env variable for a newly created user

On my Ubuntu machine, I logged in as "olduser" and created "newuser" using the following command: adduser --system --home /usr/share/newuser --no-create-home --ingroup newgroup --disabled-password --...
5
votes
2answers
319 views

Why do you need PulseAudio?

I'm reading and trying to understand why would anyone want to use Pulse Audio and I'm failing to understand. I read this https://www.linux.com/news/hardware/drivers/8100-why-you-should-care-about-...
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1answer
588 views

SSH, FTP, HTTP stopped working [closed]

I'm facing a problem with a Linux webserver of mine. It's a VM Ubuntu 10.4 LTS which runs a Wordpress network site. Out of the blue with no changes being made on the back end, ftp has stopped as has ...
1
vote
1answer
3k views

Ubuntu Server - Access webserver from other LAN computer, setting up SSH or FTP, closing ports?

I'm running Ubuntu 11.10 x64 Server, with apache2 installed. The setup is pretty much default configuration. I have a few questions about; DocumentRoot/Static IP/Connect from LAN/SSH or FTP?/...
2
votes
1answer
3k views

Port Mirroring using iptables - copy all traffic among nginx on :80 and apache on :8080

I have nginx running on port 80 and apache running on port 8080 I want to transfer all the traffic to both nginx and apache asynchronously i.e the performance of one server wont be dependent on the ...
2
votes
1answer
723 views

How can I monitor the load of a php script on a server?

We've got a website on our dedicated server which seems to be causing problems. Recently it has been crashing our dedicated server - it's very annoying. It will crash at random times. The tech ...
3
votes
1answer
490 views

Creating a local in-house testing web server

What we are trying to achieve is to have an in house Linux-based (probably Ubuntu) web server which we can test on before pushing to our remote dedicated hosting server. The problem we are going to ...
3
votes
3answers
5k views

How to configure permissions to allow gedit, apache, and an IDE play together?

I'm using plain Ubuntu Desktop 11.04 and installed my lamp stack using lamp-server. I am trying to use Netbeans as my IDE. Currently, all virtual hosts are being run from /var/www/vhostname -- but as ...
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0answers
97 views

How do I install Bazel on Ubuntu 16?

I'm unable to download the certificate to add bazel repo to my ubuntu 16 machine: url https://storage.googleapis.com/bazel-apt/doc/apt-key.pub.gpg | sudo apt-key add - % Total % Received % Xferd ...
4
votes
2answers
4k views

Cannot Start KVM VM Because Missing BIOS

Whenever I attempt to start a KVM VM on Ubuntu 14.04 with the "kvm" command, I get the following error: qemu: could not load PC BIOS 'bios-256k.bin' I have searched for this file and found it ...
0
votes
1answer
43 views

ubuntu not starting after update-grub

I changed the default kernel in /etc/default/grub and did update-grub. Now every time the system is switched on, it opens BIOS settings. It's not showing any boot menu.
1
vote
1answer
56 views

WiFi suddenly stopped working

I have access to internet using a cable. I have an HP Pavilion dv6 Notebook and I'm on Ubuntu 14.04.4 LTS. $ ifconfig eth0 Link encap:Ethernet HWaddr 08:2e:5f:73:8c:9b inet adr:192....
0
votes
1answer
105 views

Trouble Joining an Active Directory Domain

I'm trying to join an Ubuntu 14.04 server to a Windows 2003 R2 domain. My admin says that from the controller side, it is part of the domain. But SSSD can't seem to start and DNS update fails. I've ...
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0answers
16 views

Make a bootable ubuntu-core for Raspberry pi2

I've been trying to build a minimal Ubuntu system for my raspberry pi2, based on an Ubuntu 14.0.4 core (base) image. here: wiki.ubuntu.com/Core I deployed the image to the SD card, Cross compiled a ...
2
votes
1answer
32 views

Apache Reverse Proxy - How to disable SSL frontside but allow SSL backside

I have an Ubuntu 14 LTS / Apache 2.4 server with mod_proxy/mod_rewrite configured for use as a reverse proxy. One of the servers on the backside is too old to support TLS. I would like to disable ...
2
votes
2answers
2k views

Run Ubuntu 10.04 LTS with Apache2 SSL with passphrase

I am setting up a Virtual Machine with Ubuntu 10.04 Lucid Lynx Server. I have been reading the section on setting up Apache with an SSL certificate within the book : "Beginning Ubuntu LTS Server ...
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0answers
70 views

What is the difference between “sudo su -” and “sudo su -l”?

On Xubuntu 14.04, looking at the man pages, su - and su -l should be the same. -, -l, --login Provide an environment similar to what the user would expect had the user logged in directly. I ...
11
votes
7answers
33k views

How do I work with GUI tools over a remote server?

I have an Ubuntu server running on EC2 (which I didn't install myself, just picked up an AMI). So far I'm using putty to work with it, but I am wondering how to work on it with GUI tools (I'm not ...
0
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0answers
81 views

Many troubles trying to mount QNAP NFS server on Ubuntu mount point

I have a QNAP TS-251 NAS with a pair of 4 GB drives set up as RAID 1, running as a server, mainly for backups. It has the default operating system, QTS 4.2.0 (2016/01/19), which I think is current. It'...
0
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0answers
36 views

How to render ASP.NET's Script Manager followed by the UpdatePanel in webpage on Ubuntu 16.04?

I wish to find out how to render ASP.NET's Script Manager followed by the UpdatePanel in an webpage on Ubuntu 16.04. The following aspx script code runs fine on Windows 7 Microsoft Visual Studio 2013 ...
2
votes
2answers
28 views

Adding permanent routing

Each time when I start my computer I type in the console sudo route add -net xxx.xxx.xxx.xxx netmask 255.255.240.0 gw xxx.xxx.xx.xxx When computer is rebooted or switched Off/On I must re-enter ...
0
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0answers
13 views

After taking some screenShot , bash prints “(shutter:13396): Unique-DBus-WARNING **: Error while sending message

On my Application in ubuntu 14.04 system, i am using this command : system("shutter -s 12,32,613,786 -o sample.jpg"); on action of specific button , after several times of clicking on this button, ...
0
votes
1answer
79 views

How to install Ubuntu Touch on an iphone 4?

Is it possible to install Ubuntu Touch on an iPhone 4? In my research, some claimed it wasn't, but I'm not convinced. I found some tutorials for the Nexus phone, and a forum thread, but it wasn't very ...
0
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0answers
20 views

How to prevent special group to delete files or folders?

Folder path: /var/www/html group name: "ftpusers" user: "admini" How to prevent from group "ftpusers" to delete files or folders in html folder, but allow them to create files or folders? User "...
1
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0answers
71 views

Why is it not possible to connect to my server using RSA from an Ubuntu machine?

I tried to connect to my server using ssh xxxx@xxxxxxx.xxx The result was: Unable to negotiate with xxx.xxx.xxx.xxx port 22: no matching host key type found. Their offer: ssh-dss Then I ran ssh ...
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0answers
23 views

Create user who can only ssh and reboot machine [duplicate]

I have a problem when I want to create user for SSH and rebooting the machine only. What I did is I just created a normal user. But normal user can access other commands like reboot, vim, ps, etc. I ...
1
vote
0answers
21 views

Not able to install postgresql in Ubuntu 14.04

I tried many times installing postgresql in Ubuntu 14.04 without success. I keep getting the following error: Can't exec "/tmp/postgresql-common.config.WJ3dGb": Permission denied at /usr/share/...
1
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0answers
31 views

Linux kernel GRUB/boot issue?

I'm working with a specific software package that is only compatible with a older linux kernel version. After installing this older version via the following command $ sudo apt-get install linux-...
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0answers
30 views

rsyslog is still sending messages to omusrmsg even after using `stop` command

I have the following lines in the 50-default.conf file (in /etc/rsyslog.d): local0.emerg stop *.emerg :omusrmsg:* But all local0 messages are still being sent to every user logged ...
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0answers
24 views

Converting A Physical Ubuntu Server with boot raid 1 to a Xen domu

So here's the situation: 1 physical server running a very outdated version of ubuntu 14.04 Booting off of a a software raid 1 configured in the installation. This server runs mission critical ...
0
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0answers
35 views

Replacing Ubuntu 14.04 with Arch Linux on a dual boot Windows 10 configuration

I want to migrate to Arch Linux. I have read all about the installation process on Arch Wiki and got a fair idea about the process. But I have a doubt on how will the GRUB installed by Ubuntu behave ...
0
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0answers
42 views

ASUS UX501 - Ubuntu - touchpad doesn't work

On my brand new UX501 the touchpad works kind of ok (precision isn't great) but what does not work at all is the 2-fingers scrolling. I've been searching on Internet a lot but haven't find any ...
1
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0answers
57 views

How to send sudo password over pipe? [duplicate]

I need to replace existing sshd config on the remote PC and restart sshd, so I try to use this: cat /sshd_cfg | ssh user@192.168.0.47 "cat > /etc/ssh/sshd_config && service sshd restart" ...
0
votes
1answer
31 views

apt-get broke after trying to install wine

I'm a new Linux user. I use Kali Linux and tried to install wine via: sudo apt-get install wine winetricks This, however, didn't work as there were some errors. After that, I cannot install, update ...
0
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1answer
976 views

Ubuntu Postfix Open LDAP integration - no SASL authentication mechanisms

Ive followed all the steps in https://help.ubuntu.com/community/Postfix/DovecotLDAP but I am getting a localhost postfix/smtpd[12520]: fatal: no SASL authentication mechanisms in my /var/log/...
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0answers
9 views

Unusual performance of libblas-dev on Unbuntu 14.04

The package libblas-dev in Ubuntu 14.04 seems to have unusual performance (much faster) in some cases in the following question. http://stackoverflow.com/questions/38042451/cblas-gemm-time-dependent-...