Score: 1
Joost avatar
Make table fully accessible use CKEditor 4.17.1
jp flag

I'm working on a website that needs to be fully accessible following the WCAG guidelines. Therefor I need my table output, created via the CKEditor 4.17.1 in Drupal 9, to be set with the scope attribute.

Something like this:

    <th scope="col">2e klas</th>
    <th scope="col">1e klas< ...
Score: 3
PabloDK avatar
Install Ubuntu 20.04.3 in RAID0 on two SSDs
cn flag

I’m trying to install Ubuntu Server 20.04.3 on 2 X Samsung Pro 980 2TB in RAID0. I have YouTubed and googled a lot but simply can’t make it work.

Option A: When I create the partitions: /, SWAP and BOOT on both disks the interface will not let me create a RAID array on the disks?

enter image description here enter image description here

Option B: If I try to create the RAID0 first, and the partitions then I’m not allowed to set the BOOT disk?

enter image description here

â ...

Score: 0
Mohammad Zahed avatar
nginx large file upload limit
us flag

I am using Laravel Forge to manage my server and I had a problem with uploading large files with livewire. after 100 seconds uploadng fails and shows this error:


and sometimes:


my PHP timeout is 1000 and upload file size is 1.5 GB but I don't know why this happens. I tried setting these in my nginx configuration but it did not help.

fastcgi_read_t ...
Score: 2
FooBar avatar
Ed25519 to X25519 transportation
ru flag


montgomeryX = (edwardsY + 1)*inverse(1 - edwardsY) mod p

it is possible to transport an Edwards curve point (Ed25519 public key) to the Montgomery curve. Does it have any side effects if the Ed25519 public key is not valid, in case of a small subgroup or invalid curve attack for example?

And if yes, what would be the best solution to handle that properly?

Score: 0
Saif Khan avatar
Ubuntu 20.04 window system is not working
az flag

I have a problem going on with my ubuntu window system. When I put password and enter, It opens the window but after that ubuntu gets stuck. I used Wayland and it worked with it but it didn't work with ubuntu. check out this image

I need an ubuntu window system. I tried to solve this problem but wasn't able to. If you know something about it please help me out.

Score: 0
Openstack xena - Whenever I try to extend the boot volume size in a Heat stack, the heat update gets stuck in UPDATE_IN_PROGRESS
cn flag

I am using openstack Heat as my backend to manage vms. Whenever I try to increase the size of the boot volume of a vm by increasing the size value of a boot volume in a heat teamplate- The stack template gets stuck in UPDATE_IN_PROGRESS, but when I use cli and directly use cinder to extend the boot volume size it gets extended. There is no log generated anywhere. What can be the reason here?

Score: 0
compile time error C++ Web HTML Application using CGI Library CGICC
us flag

Getting following errorndefined symbols for architecture x86_64: "cgicc::Cgicc::getElement(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&)", referenced from: _main in main.o "cgicc::Cgicc::Cgicc(unsigned long ()(void, unsigned long))", referenced from: _main in main.o "cgicc::Cgicc::~Cgicc()", referenced from: _main in main.o ld: symbol(s) not found for archite ...

Score: 1
Andrew Harlan avatar
I can't find the installed application (HDSentinel_GUI) anywhere
in flag

I've downloaded and installed HDSentinel GUI tar package but I can't see it in the application panel. Where can I find it?

I've installed it as below:

tar -xvf hdsentinel_gui64bit.tar.xz
cd HDSentinel_GUI
sudo ./

Content of

echo ""
echo "Unzip the HDSentinel_GUI archive to /home/your user name/HDSentinel_Light/"
echo ""
##Unzip the HDSentinel_GUI archive
unzip ...
Score: 0
rukya avatar
How can I extend custom class extending BlockBase in contrib module?
id flag

The block opigno_documents_last_group_block is located in opigno_learning_path/src/Plugin/Block/DocumentsLastGroupBlock.php, which looks like this:


namespace Drupal\opigno_learning_path\Plugin\Block;

use Drupal\Core\Block\BlockBase;
use Drupal\Core\Url;

 * Provides a documentslastgroupblock block.
 * @Block(
 *   id = "opigno_documents_last_group_block",
 *   admin_label = @Trans ...
Score: 0
Restore partition file after deleting the other files
ro flag

I have a date based partitioned database table like this


the 2020 partition files got deleted only archivedmsgs#p#p2021.ibd left how can I restore it's data

Score: 0
gholg avatar
kernel panic message not displayed
cn flag

I am manually panicking the kernel with:

echo c > /proc/sysrq-trigger

It looks like the kernel at least freezes but there are not messages from the kernel. I was expecting the kernel to panic and the panic message to be displayed on my display but this does not happen.

What am I not doing right?

Score: 0
Printer Point and Print restriction GPO not working
tr flag

As a fix for the Print Nightmare, I've disabled the need for administrator privileges to install print drivers (this is working). This is effectively the same as exposing oneself to the Print Nightmare exploit. Which is why I want to "whitelist" certain print servers, in order to partly mitigate the exploit.

To do this, I have tried enabling the GPO:
"Computer Configuration\Policies\Administrative Templa ...

Score: 0
v.doro2 avatar
APIPA ARP requests are send all over the network
cn flag

We have ~200 hosts running windows 10 and ~40 ip cameras all working with ip addresses from almost all of them sending arp requests to We have also virtual machines running on VMWare equipment and some of them are also sending those requests. print screen from wireshark

Ip cameras are known to have some weird network behavior, but regular PC's all together requesting apipa - ...

Score: 1
Library Won't Update
ng flag

I'm trying to update my libarchive library on CentOS 7. Currently, I have version 3.1.2. If I type the following command, here is the result:

# rpm -q libarchive

I was able to find an .rpm file, online, which provides libarchive 3.5.2. I'd like to update to this newer version. So, I attempted to install the package by typing the following:

# rpm -i libarchive- ...
Score: 0
Lele83x avatar
"Insufficient free space" when trying to increase swap space on LVM?
mx flag

I installed Ubuntu 21.10 with LVM to use full encryption on my disk. It works great, the only problem is that it chose a 1gb swap partition size, while I have 16gb or ram...

me@me:~$ sudo vgs
  VG       #PV #LV #SN Attr   VSize    VFree
  vgubuntu   1   2   0 wz--n- <475,71g    0 

me@me:~$ sudo lvdisplay
  --- Logical volume ---
  LV Path                /dev/vgubuntu/root
  LV Name              ...
Score: 4
Max1z avatar
The different bounds of PRP/PRF switching lemma
kr flag

The PRP/PRF switching lemma is usually denoted as follows: enter image description here

I understand the proof of this version of the bound $\frac{q(q-1)}{2^{n+1}}$ and the game-playing technique behind it.

However, I came across a different version of this lemma recently, which is used more often in papers. It is denoted as follows: enter image description here

This version of the bound turns out to be $\frac{q^{2}}{2^{n+1}}$ (or something like this). Th ...

Score: 0
i tried disabling my remote session with this command
cn flag

sudo systemctl disable xrdp $ sudo systemctl stop xrdp sudo apt purge xrdp sudo apt purge xserver-xorg-core sudo apt purge xserver-xorg-input-all sudo apt purge xorgxrdp

then i had to enter my password, i received Invalid unit name "$" escaped as "\x24" (maybe you should use systemd-escape?). Unit /lib/systemd/system/sudo.service is masked, ignoring. from the terminal i tried unmasking sudo.servi ...

Score: 0
Anirudh Sharma avatar
Issues with file/folder permissions. I used to use 18.04 and upgraded to 20.04. I am unable to access places I normally could
cn flag

I just upgraded from 18.04 to 20.04 and am having to use sudo for everything which I didn't have to do when I used 18.04. For example, I was trying to install matlab recently via terminal and I am unable to access /usr/local/ without starting the install as sudo ./install. I am a root user and have restarted terminal multiple times. I'm not sure what is different between the two OS versions that require ...

Score: 2
TMFG avatar
Unable to execute command in `Alt' + `F2'
ng flag

I want to set a shortcut for my tor browser. My tor folder is in my $HOME directory. In order to execute it, I should run: start-tor-browser when I'm in ~/tor-browser-linux64-8.5.3_en-US/tor-browser_en-US/Browser.

I added the directory to my ~/.bashrc and ran source ~/.bashrc. Now,I can run start-tor-browser from everywhere in my terminal, but it doesn't work in my Alt+F2 box. Besides when I set a shortcu ...

Score: 0
Naveen avatar
I want to know how to change ip from expire pool to normal after date is extended
ke flag

I been searching for a solution regarding freeradius revert from expired pool to normal pool when the user paid. I just entered a date and time for a particular user for expiry in mysql.


Based on what I enter the user get expired pool when the date is expired but the problem is when the payment is done I need to revert back to normal pool

sqlcounter expiration {
        count-attribut ...
Score: 0
Set data value of created date with Rules
in flag

I need to set the created date of all nodes of a content type X to 'now' if the created date is older than 14days. It should be happening when running cron.

Cant get it running with Data Comparison and a relative time date like '-14days' in the conditions.

And in Actions with a set data value 'now' for node.created.value (or @node.node_route_context:node.created )

thanks for any hints in advance

Score: 0
Giuseppe avatar
How do I save a specific "state" of the product in the order item?
br flag

I'd be necessary for my site to save "a specific state" of the product(s) and relative variation(s) purchased in the order.

I mean, with the "standard" Commerce configuration, in the relative order item are stored only:

a reference to the purchasable entity, a quantity, a unit price and a total price

Therefore, for example if the body of the purchased product or relative variation is changed after a use ...

Score: 0
j.stalin avatar
High util iostat
li flag

I have server with oracle db. It works on Dell Unity storage. The server has very slow disk IO. How can I fix it?

Here are some details of my server:

OS - OL8
Kernel - 5.4.17 uek
Storage - Dell Unity XT 880F (32 * SSD disk 1,92TB)

DB - Oracle 12.1

iostat output:

Device            r/s     w/s     rMB/s     wMB/s   rrqm/s   wrqm/s  %rrqm  %wrqm r_await w_await aqu-sz rareq-sz wareq-sz  svctm   ...
Score: 0
Glubbdrubb avatar
Network access (ssh and ping) lost when logged out
cn flag

My host (5.4.0-97-generic Ubuntu 20.04.3 LTS) responds to ping and allows ssh when my user is logged in, remotely or locally. However, if I restart or log out all user sessions, I lose ssh access and it no longer responds to ICMP requests.

This behaviour started a few weeks ago after I remotely updated and restarted the host. I used to be able to login without any users logged in. I have since co ...

Score: 0
apache2 virtualhost not forwardng to correct virtual host (now a registered user)
us flag

Apache 2.4 / Ubuntu 20.4 (Linux Mint 20.3)

I am testing with 2 domain names, and

I have followed instructions at

When I go to browser, I enter and and they both return the page for the

I have confirmed that my index.html pages are  ...

Score: 0
UAZAP avatar
input sources missing ubuntu "21.10"
cn flag

I'm trying to install the Japanese keyboard and I've gone through basically all the steps required but when I accesed
"Region & Language" the input source option wasn't there.

Score: 0
pleconte avatar
firmware Bug no firmware reserved region can cover this RMM
in flag

unfortunately, after a full battery discharge, one laptop (Asus Zenbook running with Kubuntu) had a major problem: at startup the two following messages appear

  • [firmware Bug] no firmware reserved region can cover this RMRR
  • [firmware Bug] ACPI region does not cover the response buffer the laptop boots but cannot be used since the screen is completely fuzzy

After multiple attempts (fsck on the parti ...

Score: 1
Sheldon avatar
Does concept "Collision Resistance" and "Binding Commitment" in cryptography similar?
nl flag

I found there are two perplexing and related concept "Collision Resistance" and "Computation Binding in Commitment" in cryptography. I found the wikipedia's explanation is confusing. And no resources clarify their difference

Especially, I found I can't differentiate the two concepts' common ideas which is given certain inputs, there is no more than one output for a particular Hash function.

Score: 0
Intel AX201 not working with Ubuntu 20.04 LTS (Not working with other fix)
ph flag

I'm a total Ubuntu noob. Trying to get Ubuntu installed for one of my friends cause I build PCs for fun.

He requested for Ubuntu 20.04 LTS. I'm installing Ubuntu fine but I can't seem to get the Wifi module to work.

I remember back then when I did older versions of Ubuntu, there were similar issues with the AX200 as well.

Currently, running an Intel i9-12900K + Asus B660-A Strix motherboard.

Would appreci ...

Score: 0
Carlo avatar
Moving /home to another disk, which already contains some data, without erasing it
in flag

I have the /home folder on the same disk as the root, and I was planning to move it to another SSD drive ("ssd1" in the picture), which is already connected and containing some data:

folder structure

I checked the devices info with lsblk, and I got:

sda           8:0    0   1,8T  0 disk /media/sda1
nvme1n1     259:0    0   477G  0 disk 
├─nvme1n1p1 259:1    0   512M  0 part /boot/efi
├─nvme1n1p2 259:2    0     ...

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.