Score: 0
ppenguin avatar
strange NAT issues with pfSense to vagrant VM
tr flag

This one has got me confused:

I have a pfSense firewall (let's call it pfs) and behind it several servers. I NAT several services from my public IP to different servers on the LAN without any issues.

On one of the servers (let's call it s1) I'm running a vagrant (with libvirt) VM (let's call it v1) with a public network configured, which gets IP via pfss DHCP server.

Now I configure a simpl ...

Score: 0
Bright Asechemie avatar
Google Chrome can't start
tr flag

I installed Google Chrome on my Ubuntu Server 18.04 from a Debian package. I ran google-chrome to start Chrome and got the following errors:

[1130/] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq: No such file or directory (2)
[1130/] open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or dir ...
Score: 0
Recreate single docker-compose container with new config
cm flag

If I make changes to my docker-compose.yml (say, change which host port a container port is exposed on), can I recreate that single container or do I need to restart the whole stack?

docker-compose stop ; docker-compose up will do the job but I want to avoid restarting the rest of the services. I also want to avoid deleting volumes associated with the service that I'm restarting, so docker-compose kill  ...

Score: 0
Juanlu avatar
AWS architecture - traffic mirroring
pl flag

We are going to migrate our database from Aurora Serverless to Aurora Cluster. Before that, we'd like to test the performance of the new database in a real-time traffic scenario. We have thought about cloning the current API Gateway, targeting the new database and mirroring traffic from the production API to the test API.

Is this crazy? Is there any way to achieve this without affecting the perfo ...

Score: 0
Marc avatar
can't acces data after mounted iso file on external hard drive
it flag

I tried to install a software on my Ubunutu 18.04 computer, but I did it by using an .iso file and installed everything on my external hard drive.

After did this, I can't access my data from the external hard drive, I can only enter to the mounted folder corresponding to the softaware... When I chose the external hard drive as space to install the software, I thought it was just to choose free large ...

Score: 0
Roberto Stark avatar
How can i schedule a automatic synchronize of two folders on Grsync?
eg flag


So, i have two disks on my computer and i had synchronized a folder from the main disk to the external one with Grsync but now, instead of doing it manually i was wondering if it possible to schedule it in order to make a auto sync everyday. For example everyday at 8:00pm. After a lot of attempts i couldn't make it, I tried to write this on the crontab: strong text0 8 * * * grsync -e "Synchronize ...

Score: 0
Rodrigo Mendes Lopes avatar
How to turn on "Windows Defender Periodic Scanning" via GPO as a secondary AV
es flag

We have installed Acronis Cyber Protect and would like to know how to set Windows Defender's Periodic Scanning function via GPO or Powershell, we have more than 300 computers (Windows 10 Pro and Windows Server 2016). And we cannot perform this operation manually.

See image

Can you help me?

Score: 0
unknown_ avatar
Goldsrc games won't launches
cn flag

I installed a lot of games that works on goldsrc engine... and non of them launches! Except of HL1. Others behave like this: "Close" button lights up, but game won't launches.

Score: 0
jacnab avatar
Pretty much confused about pretty good privacy-:
cn flag
  1. Authentication-:

I understand that authentication is basically digital signature. But what I don't understand is how it has been explained here specially the RSA key part. It is leading me to huge confusions.

enter image description here

enter image description here

In RSA encrpytion, we use public key(of whose sender or receiver?) for encrpytion and private key(of whom?) for decryption.

They say hash is encrypted using RSA. But why are we using PRIVAT ...

Score: 0
dan360 avatar
Disabling TLS1.0 and TLS1.1
sd flag

I'm trying to disable both TLS1.0 and TLS1.1 using WHM. There are identical questions on here but none with an answer.

In Apache Configuration my SSL/TLS protocols are defined as: all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1

When I run SSLlabs it suggests that SSLv2 and SSLv3 are disabled but TLS1.0 and TLS1.2 are still enabled.

My Cipher suite is set to: ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:E ...

Score: 0
PerfoCzech avatar
The Remmina application shows an error about connecting to the remote desktop server
az flag


When i want to connect to my Virtual Dedicated Server, where i have installed Debian Desktop Server, version 11 via. Remmina application, the application will show me this error: `Cannot connect to RDP server "Server name.. I tried a lot of instructions, even about security, but nothing

Main OS: Ubuntu 20.04

App.: Remmina

Thanks for answers.

Score: 1
AlwaysLearningNewStuff avatar
Wireguard client can not connect to internet
vn flag

I have installed Wireguard with following commands:

sudo apt update
sudo apt install wireguard

Then I have installed resolvconf:

sudo apt install resolvconf

Created keys:

umask 077
wg genkey | sudo tee /etc/wireguard/private.key
sudo cat /etc/wireguard/private.key | wg pubkey | sudo tee /etc/wireguard/public.key

Finally, created config:

sudo nano /etc/wireguard/wg0.conf
# below is the content of the ...
Score: 0
Disable PowerShell v2 via GPO
ca flag

I'm trying to disable the old v2 version of PowerShell via GPO but have not been successful.

I have tried everything, to run a Scheduled Task (running a PowerShell script which command inside DOES indeed work if run locally), which included copying the file on the local machine, to setting up a new Software Restriction Policy, but nothing works as that version of PowerShell stays enabled.

Any sugges ...

Score: 0
Therkelsen avatar
Dualboot Ubuntu WiFi Adapter problems
ru flag

I'm currently running a Windows 10 / Ubuntu 20.04 dualbooted laptop (They're on two different partitions on the same drive)

Ever since Windows decided it was time to update, my Ubuntu can't use the wifi adapter. When I go into WiFi settings on Ubuntu it shows this: wifi adapter error

Here's the things I've tried:


  • Disabled fast boot in Windows
  • Reinstalled Ubuntu completely on the partition
  • Tried ...
Score: 0
John The Hacker avatar
Self hosted pip repository
de flag

I tried to create a self-hosted pip repository to host pip packages in my cloud server. to clone all the pip packages I used the Bandersnatch mirror command but it was cloning data more than 500GB, I don't need that many packages. We need pip repos for IoT devices like GPIO, requests, Redis, and flask.

I just wanted to know is there any way to filter the pip packages which we are mirroring using  ...

Score: 0
Mike Hadzhiev avatar
Ubuntu very slow at start and general after upgrade amd64 version
aq flag

I update from 18.04 to 20.04 it was slow before the update what can I do to run better.I mean when I start the computer its take like 5min to load to login screen after login it takes up to 10 min to start working properly I open firefox and the webpages load like in the 1998 load time too big I didn't mention if I run some program.Currently i hava 4GB RAM.Any suggestion will be welcomed.If need to post ...

Score: 0
El Lobo Blanco avatar
Nginx configuration for matching wildcard server_name to specific Symfony route
bd flag

i have a Symfony 5 application at domain.tld with this basic nginx configuration:

map "$http_cloudfront_forwarded_proto:$http_x_forwarded_proto" $cloudfront_proto {
    default "http";
    "~https" "https";

server {
    server_name domain.tld;
    listen 80 backlog=65535;

    root /var/www/project/public;

    client_max_body_size 500M;

    location / {
        # try to serve file directly, fa ...
Score: 0
Feng Xue avatar
lvm recovery with raid reconfiguration
co flag

I have a Dell R510 with a H200 controller previously and I have two disks: a 2T SAS and a 250G SSD. I created two raid0s using those two disks on H200 and then created lvm on top of it. Here is my procedures:

  1. created a vg-data using entire raid0 of the 2T SAS disk.
  2. created a primary partition on raid0 of the 250G SSD and a logical partition with an extended partition.
  3. created another vg-root using par ...
Score: 0
parsa avatar
Php-fpm doesn't start after some changes
us flag

I'm using php-fpm 7.3 with apache on the centos 7.
I installed php and apache with directamin control panel on my server before.
I added these below configs in to the global section of php fpm in /usr/local/php73/etc/php-fpm.conf directory.

emergency_restart_threshold 10
emergency_restart_interval 1m
process_control_timeout 10s

After I add these above configs to php-fpm, it doesn't start. What is the pr ...

Score: 0
DannySs 93 avatar
Ubuntu 20.04 LTS secondary screen Unknown display and not showing the full resolution
jp flag

I am new to linux in general so i don't really know how to deal with this.I'm using a GTX 750ti as a GPU. Using the drivers, it worked to add the 1080p resolution but those drivers are not for me because i want to game on this. I have 2 monitors(both 1920x1080) my main monitor is recognized , no problems , but the secondary one is seen as "Unknown Display" and the maximum resolution is 1600x900. ...

Score: 1
Rabindra Moirangthem avatar
computation time of pairing operations and their securities
in flag

Suppose G1 is an elliptic group and G2 be a multiplicative group and they are of same prime order p and e is a bilinear pairing, e: G1 X G1 -> G2. The operations e(p,q)r and e(pr,q) gives equal result where p, q $\in$ G1 and r $\in$ Z*p.

The computation time of different cryptographic operations are given below source:

Operation Computation time (in ms)
Scalar multiplication in G1 0.24
Score: 0
simp you avatar
Webform custom element layout twig
ph flag

I am creating a custom webform element, im using the /modules/contrib/webform/webform_example_example, i installed the module and added the element to a form but now i want to customize the webform in a twig file.

Is this possible?

Score: 0
Viesturs avatar
Make NumLock default
ng flag

I would like to make NumLock default.

I follow

However, In the settings I cannot find anything called "Keyboard Preferences". I am working in Ubuntu 20.04.

Can you please help?

Score: -1
Захар Joe avatar
Second-level domain as a primary NS server for itself
kr flag

Is there anything in RFCs forbidding me from specifying NS records for mydom.example that go like this:


as compared to


Specifically, when the primary NS is on the same domain, can I use mydom.example there or is it strictly necessary to have any third-level domain for NS such as ns.mydom.example?

Score: 4
eric avatar
LibreOffice Writer - All Documents (Old and New) Are Blank
in flag

Today I opened LibreOffice Writer for the first time in 2 weeks +/-. I find that all of the documents that I saved previously (odt format) are blank, i.e. when I open any previously saved document I get a single blank page and on the status bar it says "0 words, 0 characters".

If I create a new document, enter some text, save the document, close write, start write, reopen the document - same th ...

Score: 0
user2085899 avatar
My PC stopped working. `Timed out waiting for device` error for all of my disk drives
in flag

My Kubuntu 20.04 PC just stopped working. I was using it that I found out I cannart start any app. Restarted using sudo reboot now and it didn't started! It cannot mount any drive. This is my screen on recovery mode:

enter image description here

Score: 1
dwienecke avatar
Two step entity reference selection
vn flag

I want to create a two step entity reference selection in Drupal 9.

The structure so far:

Content Type: Company

--> Entity reference: Jobs (multiple)

Content Type: Job

--> Entity reference: Qualification (multiple)

Content Type: Qualification

I created an import for the company profiles and there is a entity reference for multiple jobs. This is already working.

In a second step there should ...

Score: 1
Florian Schneider avatar
Top Bar to the bottom
us flag

Title says everything.

I am used to throwing my mouse to the top right corner and then closing stuff. In Ubuntu, I always have to aim. I see no benefit in having the bar at the top, the bottom is just much better.

Apparently, this could be done by MMOD Panel by rik but installation always leads to an Error in Ubuntu 21. I know of Dash to panel, but I like to have them separately. The clock and date ...

Score: 0
mustafabaki avatar
Docky on Ubuntu 20.04
tr flag

I'm trying to install Docky on my machine. But I get an error saying E: Unable to locate package docky

How can I fix that?

Any help is appreciated.

Score: 0
Azure VPN (P2S OpenVPN) - no connection to public internet via VPN
az flag

Our IT landscape is based on the cloud and utilizes IP whitelisting for access to it. This has been working just fine though all summer as our offices IP addresses are whitelisted. Now that our offices have closed again due to covid, I am working on a solution to allow developers to access all cloud resources from home, without whitelisting private people's IP Addresses.

To solve this problem, I  ...

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.

That’s a missed opportunity. Questioning is a uniquely powerful tool for unlocking value in organizations: It spurs learning and the exchange of ideas, it fuels innovation and performance improvement, it builds rapport and trust among team members. And it can mitigate business risk by uncovering unforeseen pitfalls and hazards.

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.

The good news is that by asking questions, we naturally improve our emotional intelligence, which in turn makes us better questioners—a virtuous cycle. In this article, we draw on insights from behavioral science research to explore how the way we frame questions and choose to answer our counterparts can influence the outcome of conversations. We offer guidance for choosing the best type, tone, sequence, and framing of questions and for deciding what and how much information to share to reap the most benefit from our interactions, not just for ourselves but for our organizations.