Score: 0
synth45 avatar
Jenkins linux master <=> windows build agent/slave WMI issue
cn flag

I'm trying to set up a build agent on a windows host using this plugin in Jenkins:

I've configured the windows build agent/node on the Jenkins master, and have set up the correct service account on the windows side and provided password, but am getting an error related to Netbios and CIFS, it seems:

Here is the error message:

[2021-08-04 10:36:28] [windows-agents ...
Score: 0
How to configure Windows>Vmware>Docker>nginx so I can access http
cn flag

On my PC I have this stack:

  • Microsoft Windows [Version 10.0.19042.1110]
  • VmWare Player 16.1.2 build-17966106 installed in windows
  • CentOS Stream 8 installed in a VM
  • Docker 20.10.7 installed on CentOS
  • nginx latest launched via docker run -p 8000:80 nginx

How can I access nginx from Windows chrome browser?

Within the VM it works - I can browse to http://localhost:8000 and see the nginx landing page, but s ...

Score: 0
Dameon Kan avatar
Intel Open GL being broken with some distros
sx flag

I've tried MANY, many distros at this point. But Ubuntu is by far my favorite. Just vanilla Ubuntu. My main problem is, is that some distros just refuse to work with OpenGL. Minecraft, TF2 and all launch fine, however polygons are invisible/visibly broken. I have provided glxgears, and other such utilities. I don't understand why some distros break this and why some do. Examples of working ones include  ...

Score: 0
Andrew M avatar
Need help with autoinstaller/cloud init
kg flag

I am trying to pxe boot Ubuntu with cobbler using cloud-init. I already have the auto-install-user file. But I can't get around the missing CD-ROM error message. I can provide screenshots of what I'm talking about.

Score: 0
Web camera turns off
id flag
PC: HP Eliteone 800 G5
OS: Ubuntu 20.04.2
Kernel: Linux 5.4.0-80-generic

My embedded web camera randomly turns off/is having error during video conferences. Zoom freezes and crashes, Google Meet detects camera error and just turns video off.

What can be done with it? Or how to get more specific info about the problem?

Score: 0
HaDi AyOuB avatar
Blinking cursor and very clean and black screen on Linux
fi flag

I have a screen like this, I guess it is caused by running out of disk space.

I tried so many solutions and none is worked, tried to boot to windows 10 and get access to Linux files and delete them and did not work, also I tried to use rescue kali and did not work.

Is there any way to fix this?

Score: 0
Grafana anonymous user unable to modify default dashboard
pt flag

...or, when does Admin not mean Admin?

I have Grafana configured to permit anonymous access:


For the most part this works great, but with the anonymous user I seem to be unable to do certain things, such as:

  • Modify the default bashboard (e.g., I can't clink the "Remove this panel" link in the "ba ...
Score: 0
richardwhitney avatar
How do I set the anomaly score in crs-setup.conf?
cn flag

I am using v3.0.0 of CRS with ModSecurity set to DetectionOnly mode and the nginx connector. I want to set the anomaly score to 100 or so to fine-tune the settings, but I can't see where or how to do that. Looking in crs-setup.conf

nginx 1.18.0 if that helps

Score: 0
Donald C. Spencer avatar
Which is best: RC5, RC6, CAST-128, LOKI97, or MARS?
cn flag

Considering speed and security, which is best: RC5, RC6, CAST-128, LOKI97, or MARS?

What does the scoreboard look like?

(I'm asking about the abstract math concept, not related to any code implementation. However, hearing about code implementations would be interesting.)

Score: -2
Muhammed Özen avatar
Ubuntu Terminal Default Positions
in flag

As many of you know, whenever you open a new terminal window on Ubuntu it gets located in the upper left part of the screen. The next one is located right below it. The third one is in the upper right, the fourth one in the bottom right part of the screen. I want to add that functionality to another Linux distribution which I'm using now. I just want to know how this is handled in Ubuntu.

Also th ...

Score: 1
cdahms avatar
FreeCAD on Ubuntu - how to rotate/pan?
cn flag

I just installed FreeCAD on Ubuntu 20.04 and opened a .stp file, which seems to be valid.

While attempting to work out how to rotate/pan, I found various pages upon Googleing (for example which list the usual suggestions one would expect (some combinations of left mouse button, Ctrl, Alt, Shift, and the Windows key). None of these work.

Score: 0
IrAM avatar
Checking Signature File is a Valid one
in flag

We are using a signature file which is in .pkcs7 format and has certificates encoded in it in DER format. In the process of verification of the signature we extract certificates and do final verify.

Is there anyway before we go for extraction of certificates and other crls, to check the signature file is valid(In case a .txt or other is renamed as .pkcs7 etc). Of course the extraction or verific ...

Score: 0
Jasper avatar
KeePass XC autotype depends on keyboard layout
in flag

I'm changing between German and English keyboard layouts and I use KeePass XC (installed via snap).

When I use the autotype feature to fill in passwords, KeePass XC seems to be "one layer too close to the keyboard", let me explain with an example:

My imaginary password contains the letter z. On the German QWERTZ-layout, the z key is between t and u. Lets assume that I entered the password using the  ...

Score: 2
Zoey avatar
q-ary lattices - proof of dual upto scale
cn flag

Two lattices are defined as following: \begin{align} \Lambda_q^{\bot}{(A)} & = \{\mathbf{x} \in \mathbb{Z}^m: A\mathbf{x} = \mathbf{0}\text{ mod }q\} \\ \Lambda_q{(A)} & = \{\mathbf{x} \in \mathbb{Z}^m: \mathbf{x} = A^T\mathbf{s} \text{ mod }q \text{ for some } \mathbf{s} \in \mathbb{Z}^n_q\}. \end{align} T.S.T.

  1. $\Lambda_q{(A)} = q \cdot \Lambda_q^{\bot}{(A)}^*$, where $\Lambda_q^{\bot}{(A ...
Score: 0
etcd cluster with DNS Discovery - client: etcd cluster is unavailable or misconfigured; Error: unexpected status code 404; dig SRV returns blank
cn flag

I am configuring etcd to bootstrap using DNS discovery but it says that the server is misconfigured and it appears to be querying the wrong port, and the SRV records don't seem right.

Please could you review the below and see my questions at the bottom of this post?


root domain: etcd.ksone

server SRV record:

_etcd-server-ssl._tcp.etcd.ksone    SRV Simple  -   
0 0 2380 etcd2.ksone
0 0 2380 ...
Score: 0
AES and the Feistel Structure Used Together?
bq flag

In Dual Watermarking in Tele-radiology using DWT for Data Authentication and Security, the authors wrote:

The encryption process uses the Feistel structure consisting multiple rounds for processing the plaintext to obtain the cipher text and each round consisting of a “substitution” followed by a permutation step. In this paper dual watermarking algorithm for patient detail encryption is use ...

Score: 1
Francesco Aloisio avatar
How to change desktop icon text background color in yaru-unity theme?
bt flag

Hi on my unity version of ubuntu 18.04 LTS I use the Yaru-Unity theme. However, the icon fonts appear black to me on the desktop. Is there any way to make them white like in the photo?enter image description here

Score: 0
iraqiboy90 avatar
Incoming DKIM verfication check working but not rejecting
de flag

I have SPF, DMARC and DKIM configured for my mail server (postfix) on a CentOS 7 OS. Outgoing mail is getting signed as normal. All email check sites says my stuff are secured and working great but there is a site I use that purposely sends various types of spoofed emails to test all parts of incoming filters and my server seems to fail a specific DKIM part.

Site used: Mail 5  ...

Score: 1
ePezhman avatar
While creating instances, Cloud-init stops before creating the SSH keys
gb flag

We have OpenStack v2.3.1, Mitaka with KVM installed on our cluster. While creating instances, the VMs are created successfully every time. However, Cloud-init randomly stops before creating SSH keys only on a few of the instances (this is not dependent on the node running the VM). Therefore, we cannot SSH to the created VM. This strangely does not leave any errors behind in the logs. Any idea wha ...

Score: 2
longer avatar
How to enable Promiscuous Mode permanently on a NIC managed by NetworkManager?
th flag

I'm trying to bridge two of several NICs to act like a switching hub.
To do so, need to enable the promiscuous mode on the NICs.
Even if I set it to “promisc on” with the “ip link” command, the setting will be reset when I reboot the PC.

How can I enable Promiscuous Mode permanently, even if I reboot my PC?

The environment is Ubuntu Desktop 20.04 LTS.
For this reason, the network configura ...

Score: 0
Janos avatar
What is RC or BBS in last column of efibootmgr -v?
id flag

xubuntu 20.04 command efibootmgr -v has three columns after the BootOrder: line. The third column has either a boot loader entry or "RC" for CD or USB media. My HP laptop has W10 preinstalled with a recovery partition for W10, and of course I have Linux installed on another partition. The third column starts with "HD(foo)" for the W10 boot or Ubuntu boot, and it starts with "BBS HD(foo)" for the W10  ...

Score: 0
Galen Marek avatar
Wine not launching applications on Kubuntu 21.04
de flag

I installed stable Wine from the site's repository but when I launch games (Monkey Island Special Edition) they show the black loading fullscreen then they crash. I tried even with Lutris. This happens on all of the 3 PCs I installed Wine/Lutris and even tried with other games/apps but the behavior is the same.

Score: 3
Anjan Kumar Paul avatar
ERROR: Unable to fetch GPG key from keyserver
in flag

I tried to launch lxc container. But when I give

sudo lxc-create -t download ubuntu -n web1

it shows this error

ERROR: Unable to fetch GPG key from keyserver

How to solve the issue?

Score: -2
everapt avatar
Is the module fully compatible with Drupal 9?
cn flag

If I create a new project and install The Commerce Core module using Composer following the instructions given from the documentation, it would install Drupal 8 by default, not Drupal 9.

I know there are ways to work around this and install Commerce Core on top of Drupal 9. Is it fully compatible with Drupal 9?

Score: 0
Gabriele Bartoli avatar
Confusion regarding workspace-related shortcuts on 20.04
tr flag

The problem

I am trying to understand some odd behavior linked to keyboard shortcuts, specifically around workspaces.

The shortcut list in setting says that:

  • Shift+Super+Page-up/down moves the current window to another workspace
  • Super+Page-up/down moves me to another workspace

But I can emulate the same behaviors by using:

  • Ctrl+Alt+Shift+up/down arrow to move windows
  • Ctrl+Alt+up/down arrow to move  ...
Score: 0
alexjohnson avatar
Automating Adding Projects to the Metric Scope
pl flag

I have an "Alerts" project in Google Cloud and want it to monitor the metrics of several other projects. On the Cloud Console, I can easily add these projects to the metric scope of my Alerts project. However, I would like to automate this process in Terraform. Does anyone know how?

Score: 0
Dáire Fagan avatar
Force separate Mullvad VPN settings per user?
us flag

I would prefer that I was able to autoconnect to a different server for each of two users with Mullvad VPN.

What I have tried:

With crontab -u <username> -e for each user I added a single line from the following unique to each:

@reboot mullvad relay set location ie dub
@reboot mullvad relay set location uk lon

but both users, even with different crontabs, still connected to the same VPN.

Next I ...

Score: 1
Abhishek Kumar avatar
Gnome extension key binding not working
am flag

Gnome extension( key binding not working,extension window getting stuck when i'm trying to bind the keys on Ubuntu 21.04.

Score: 1
kingtut1906 avatar
Ubuntu 20.04 lts autoinstall won't work with UEFI over netboot
in flag

I am unable to get Ubuntu to recognize my user-data.yml file that is being hosted on my organizations http server, whenever I boot into UEFI mode. I get the default interactive login screen no matter what options I add to the installer command line. Ubuntu Welcome Screen but no autoinstall process starting

However, Legacy/BIOS mode starts and finishes the autoinstall process without any issues. For some  ...

Score: 0
Emil Majer avatar
Ubuntu 20.04: Kernel and display manager not loading on system boot
ps flag

OS: Ubuntu 20.04.2 LTS x86_64

Kernel: 5.8.0-63-generic

Hi! I have problem with my Ubuntu. When I try to boot, it shows me an error you need to load the kernel first. I googled a lot about this issue and I try to fix it with my grub (v2.04).

When I set prefix like this: set prefix=(hd0,gpt2)/boot/grub terminal just freeze. No matter how long I wait prompt doesnt show again. I restart system (using ...

The Stunning Power of Questions

Much of an executive’s workday is spent asking others for information—requesting status updates from a team leader, for example, or questioning a counterpart in a tense negotiation. Yet unlike professionals such as litigators, journalists, and doctors, who are taught how to ask questions as an essential part of their training, few executives think of questioning as a skill that can be honed—or consider how their own answers to questions could make conversations more productive.

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For some people, questioning comes easily. Their natural inquisitiveness, emotional intelligence, and ability to read people put the ideal question on the tip of their tongue. But most of us don’t ask enough questions, nor do we pose our inquiries in an optimal way.

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