19.04 – Ubuntu configuration opening the external screen

I am new to ubuntu, after installing ubuntu successfully, I want to open the configuration application. But I'm so confused, but the configuration application shows on the outside screen

here a screenshot

I already searched in google, but the solution open configuration> show. How do I open the configuration while configuring the open screen outside?

What are some important commands to monitor and secure ubuntu?

I am currently using these commands to monitor my system.

sudo apparmor_status
state of sudo ufw
netstat-peanut

Are there additional commands that one should know to monitor and secure our system?

networks – Hosting a PXE on Ubuntu Server 18.04

Something new in this, but I was asked to set up a group of kiosk systems for a group project. I have experience configuring a server, that's why they asked me …

The only problem is that I really do not know much about configuring a PXE server. I thought about trying it in the configuration of my home, I found some guides …
many different guides … who are in conflict for many things:
(in case of using a container, do you demand a precompiled script or plugin with some server tools, what configuration should it have …)
So I'm a little lost at this point.

Can someone tell me a good and easy to follow guide? I was planning to use Ubuntu Server 18.04, but since it is not a permanent configuration, any distribution you recommend is fine.

Any help please?

linux – The Ubuntu 16.04 factory installed by Dell: booting error stopped waiting for the root disk

I have a Dell XPS 5530 with Ubuntu 16.04 pre-installed. It was working fine, but I have not opened the laptop for about 2 months and, when I tried it today, I was greeted with a RAM disk indicator. I started in recovery mode and saw that the kernel could not find the root device UUID = … was missing. I adjusted the delay to wait for 100 seconds, but that did not work. I also tried to boot with older kernels without luck.

This laptop does not have a CD, so I'll need to get an external one or try to get a Linux district live on a USB stick that I do not have at the moment.

I ran the system tests and it looked good.
Apart from removing the SSD drive and trying to mount it on another computer, how can I know if it is still good?

Dmesg did not include a uuid value inside. This is my first experience with Ubuntu.

Any help is appreciated.

Thank you

linux – Failed to start elevated network interfaces. Ubuntu Hyper-V Server

I run an Ubuntu virtual machine inside Hyper-V.
During the launch, an error appears that the network could not start.

osis @ projmngsys: ~ $ sudo systemctl status networking
● networking.service - Elevate network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor default: enabled)
Drop-In: /run/systemd/generator/networking.service.d
└─50-insserv.conf- $ network.conf
Active: failed (Result: exit code) from Вт 2019-06-18 20:25:45 MSK; 14min ago
Docs: man: interfaces (5)
Process: 794 ExecStart = / sbin / ifup -a --read-environment (code = exited, status = 1 / FAILURE)
Process: 778 ExecStartPre = / bin / sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --lis
 Main PID: 794 (code=exited, status=1/FAILURE)

июн 18 20:25:44 projmngsys systemd[1]: Starting Elevate Network Interfaces ...
June 18 20:25:45 projmngsys ifup[794]: RTNETLINK replies: The file exists
June 18 20:25:45 projmngsys ifup[794]: Could not open eth0.
On June 18 20:25:45 projmngsys systemd[1]: networking.service: main process left, code = exited, status = 1 / FAIL
On June 18 20:25:45 projmngsys systemd[1]: Failed to start Raise network interfaces.
On June 18 20:25:45 projmngsys systemd[1]: networking.service: Unit entered in failed state.
On June 18 20:25:45 projmngsys systemd[1]: networking.service: Error with the result & # 39; exit code & # 39 ;.

[2]+ Stopped sudo systemctl status networking

Inside sudo nano / etc / network / interfaces I have:

# This file describes the network interfaces available in your system.
# and how to activate them. For more information, see interfaces (5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto what
iface what inet loopback

# The primary network interface

auto eth0
iface eth0 inet static
address 192.168.1.69
#netmask 255.255.0.0
#gateway 192.168.1.254
# dns-nameservers 8.8.8.8 8.8.4.4 192.168.1.254
# dns-search google.com

In this sense, the question of how to configure Ubuntu and Hyper-V step by step, so that the Internet and SSH will work on it.

P.S.

osis @ projmngsys: ~ $ ip link show
1: lo:  mtu 65536 qdisc queue status UNKNOWN mode DEFAULT default group qlen 1
link / loopback 00: 00: 00: 00: 00: 00 brd 00: 00: 00: 00: 00: 00
2: eth0:  mtu 1500 qdisc pfifo_fast state UP mode default DEFAULT default group qlen 1000
link / ether 00: 15: 5d: 64: 26: 04 brd ff: ff: ff: ff: ff: ff

osis @ projmngsys: ~ $ sudo lshw -C network | name grep
logical name: eth0

osis @ projmngsys: ~ $ ifconfig -a
eth0 Encapsulated link: Ethernet HWaddr 00: 15: 5d: 64: 26: 04
inet addr: 192.168.1.69 Bcast: 192.168.1.255 Mask: 255.255.255.0
inet6 addr: 2a00: 1370: 8125: dfcc: 215: 5dff: fe64: 2604/64 Scope: Global
inet6 addr: fda5: efaf: 2260: 1: 215: 5dff: fe64: 2604/64 Scope: Global
inet6 addr: fe80 :: 215: 5dff: fe64: 2604/64 Scope: Link
UP BROADCAST RUNNING MULTICAST MTU: 1500 Metric: 1
RX packages: 7082 errors: 0 discarded: 0 overflows: 0 frames: 0
TX packages: 4055 errors: 0 discarded: 0 overshoots: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 1053006 (1.0 MB) TX bytes: 4096922 (4.0 MB)

lo Link encap: Local Loopback
inet addr: 127.0.0.1 Mask: 255.0.0.0
inet6 addr: :: 1/128 Scope: Host
UP LOOPBACK RUNNING MTU: 65536 Metric: 1
RX packages: 203528 errors: 0 discarded: 0 overflows: 0 frames: 0
TX packages: 203528 errors: 0 discarded: 0 overshoot: 0 carrier: 0
Collisions: 0 txqueuelen: 1
RX Bytes: 180782039 (180.7 MB) TX Bytes: 180782039 (180.7 MB)

osis @ projmngsys: ~ $ sudo nano /etc/resolv.conf – clear file

osis @ projmngsys: ~ $ sudo nano / etc / hosts
127.0.0.1 localhost

# The following lines are desirable for hosts with IPv6 capability
:: 1 localhost ip6-localhost ip6-loopback
ff02 :: 1 ip6-allnodes
ff02 :: 2 ip6-allrouters

xubuntu – Ubuntu 16.04 never exchanged

I am using a Xubuntu 16.04 on my laptop, installed from a dist update of a Xubuntu 14.
The laptop has 10 GB of RAM and 4 GB of exchange.
I recently updated the kernel to the version: 4.15.0-51

The problem is that, during normal operation, the system disconnects with time but never exchanges back. So after hours / days of activity, the exchange space fills up.
Even after closing all the main processes, the use of RAM reaches a few hundred MB, but the exchange remains complete.
Also, repeating all processes / proc / * / stats and grep VmSwap returning 0 kB.

How can I debug why the kernel is not exchanged?
It is as if the kernel is losing sight of who owns the pages in the exchange.
I already spend a significant amount of time trying to solve this without success. The only turn I have for now is a script that creates and recycles (swapoff; swapon) some swap files.

Thanks for any help.

linux – Where is the CUDA 8.0 toolkit located in Ubuntu?

I installed the Nvidia 375 driver and CUDA 8.0 on Ubuntu 16.04 of the Nvidia .deb package. I want to build TensorFlow with GPU support. This is the output of TensorFlow set up script:

./configure
You have bazel 0.4.5 installed.
Please specify the location of python. [Default is /usr/bin/python3]:
Possible Python library paths were found:
/usr/local/lib/python3.5/dist-packages
/ usr / lib / python3 / dist-packages
Please enter the path of the Python library that you want to use. The default value is [/usr/local/lib/python3.5/dist-packages]

Using the path of the python library: /usr/local/lib/python3.5/dist-packages
Do you want to build TensorFlow with MKL support? [y/N]
MKL support for TensorFlow will not be enabled
Specify the optimization indicators that will be used during compilation when the bazel option is specified "--config = opt" [Default is -march=native]:
Do you want to use jemalloc as the malloc implementation? [Y/n]
jemalloc enabled
Do you want to compile TensorFlow with Google Cloud Platform support? [y/N]
Google Cloud Platform support for TensorFlow will not be enabled
Do you want to compile TensorFlow with the support of the Hadoop file system? [y/N] Y
Hadoop file system support will be enabled for TensorFlow
Do you want to compile TensorFlow with the XLA compiler just in time (experimental)? [y/N]
XLA support for TensorFlow will not be enabled
Do you want to build TensorFlow with VERBS support? [y/N]
VERBS support will not be enabled for TensorFlow
Do you want to build TensorFlow with OpenCL support? [y/N]
OpenCL support for TensorFlow will not be enabled
Do you want to build TensorFlow with CUDA support? [y/N] Y
CUDA support will be enabled for TensorFlow
Do you want to use clang as a CUDA compiler? [y/N]
nvcc will be used as a CUDA compiler
Specify the version of the CUDA SDK that you want to use, for example. 7.0 [Leave empty to default to CUDA 8.0]:
Please specify the location where the CUDA 8.0 toolkit is installed. See README.md for more details. [Default is /usr/local/cuda]:
Invalid path to the CUDA 8.0 toolkit. /usr/local/cuda/lib64/libcudart.so.8.0 can not be found
Specify the version of the CUDA SDK that you want to use, for example. 7.0 [Leave empty to default to CUDA 8.0]:

The CUDA toolkit directory is not in the default path, and I can not find it anywhere / usr:

find / usr -type f -name & # 39; * cuda * & # 39;
/usr/src/linux-headers-4.4.0-151/include/linux/cuda.h
/usr/src/linux-headers-4.4.0-151/include/uapi/linux/cuda.h
/usr/src/linux-headers-4.4.0-142/include/linux/cuda.h
/usr/src/linux-headers-4.4.0-142/include/uapi/linux/cuda.h
/ usr / lib / nvidia-384 / bin / nvidia-cuda-mps-server
/ usr / lib / nvidia-384 / bin / nvidia-cuda-mps-control
/usr/lib/x86_64-linux-gnu/libicudata.so.55.1
/usr/share/man/man1/alt-nvidia-384-cuda-mps-control.1.gz
/usr/share/vim/vim74/syntax/cuda.vim
/usr/share/vim/vim74/indent/cuda.vim
/usr/include/linux/cuda.h

Did I miss something in the CUDA installation?

virtualbox – How to share a folder between the Ubuntu virtual box and the host windows?

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Cakewalk won Ubuntu with wine

Can anyone here tell me how to install DAW Cakewalk by BandLab in Ubuntu with Wine?

Thank you,
Smi