Mining software – problem connecting Slushs Pool to GUIMiner. I tried to connect many host addresses every time the target computer explicitly refused

I'm on Windows 10 with GUIminer, I want to mine mine on the slush pool, but every time I enter any host address, I saw that it didn't work on the slush pool. I entered the correct login for my miner and on GUIminer it says that the target computer has expressly rejected this. I also have Bitcoin Core and I haven't completed the download. Bitcoin core and GUIminer are in trouble on my external drive?

So what's the problem and how can I fix it please. Thanks a lot.

adb – Connecting the Samsung S9 to the USB Type C of the MacBook behaves like charging – not charging – charging – etc.

I am trying to test a mobile app with my Samsung S9. I have activated the "Developer Options" and these are my "USB Settings" (opened when I tap the "Android System" notification):

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And when I "tap for more settings" I see:

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Now my phone behaves every 10 seconds as if I plugged in the USB cable again, which creates the charging noise and shows the percentage of the battery:

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  1. This doesn't sound healthy for my phone's battery when it's actually battery cycles.
  2. How can I stop charging or stop charging? (If I choose to control the USB via the "Connected device" options, I can no longer see the phone adb and my MacBook is charging from my phone.)

Problems connecting to the Internet (via Ethernet) after upgrading to Windows 10

About three days ago I had problems with my PC's Ethernet connection when it was still using Windows 7. After disabling energy efficient Ethernet, my connection was resumed short enough for me to download and install Windows 10. Since the update to Windows 10, I have not been able to connect to the Internet. The connection normally works for all other computers running Windows 7 and Windows 10. My PC is a self-made desktop with specifications that Windows 10 should definitely run. I can be more specific if this is an important detail.

I tried almost every solution I found online. I apologize for the length of the post, but I think it could be a good challenge for someone who has more knowledge than me. Here are the steps I've taken:

  1. Bug fixes executed: This returned a number of errors every time I ran it. After performing the troubleshooter, my internet connection would briefly display "Network: Connected", but after a few seconds it would return to "Network: No Connection". The errors would be (apparently random) between "" Ethernet "has no valid IP configuration (fixed)", "The default gateway is not available (fixed)" and "The connection between your access point, router or cable modem and the Internet is broken (detected) "- the last error was the rarest and most inconsistent after it was executed about 50 times).

  2. Renew my IP / DNS address: I tried ipconfig / release (successful), followed by ipconfig / renew. Every time I try to run / renew, I get a message that an error occurred while renewing the interface Ethernet: A connection to your DHCP server cannot be established. The request has expired. In response, I tried to run ipconfig / registerDNS. Initially, it was stated that the registration should be initiated and errors in the event viewer should be reported. The action did not change anything and I noticed several errors regarding the DHCP client in the event viewer that "your computer could not renew its address from the network … error 0x79".

  3. Resetting IP / TCP: I did both Netsh Winsock Reset (successful) and Netsh Int IP Reset. Executing the second command had about 15 to 20 lines of successful reset, but I think it can be an important detail that the last two lines said "Reset, Failed. / Access Denied".

  4. I don't have any external antivirus software, and turning off the Windows firewall didn't do anything.

  5. I completely reinstalled Windows 10, did a network reset and reinstalled the drivers of my network adapter. I still couldn't connect to the internet.

  6. I made sure that the power management setting for the network adapter did not allow the computer to turn off the adapter to save power.

If you've read this far, I really appreciate that you took the time to help a stranger online. The fact that I had a similar problem on Windows 7 where none of the above solutions worked, except turning off the energy efficient Ethernet, gives me hope that this problem could possibly be solved. I appreciate any advice / methods / information that anyone can offer and please let me know if you need additional information.

I believe that the errors associated with the ipconfig / renew and / registerDNS commands are the best place to start, but I don't have the knowledge to fix other errors. Also, I have not found a similar question online where someone has been troubleshooting and continuously "repairing" the connection with the same few error messages (but not providing connectivity).

html – Voluntary web application for connecting people

Sorry if this is in the wrong place please move or suggest a move if necessary.

I have some free time for the foreseeable future. To help people in the current climate, I considered creating a web application to connect people who need help and people who can offer help.

I'm thinking of a simple, responsive, web-based application that asks users whether they are looking for help or offer help. Based on the selection, the following would happen:

Searching for help

  • The table of volunteers is displayed
  • The volunteer table contains name, city (zip code), email, telephone, services offered (dropdown list).
  • Table is filterable (possibly with js datatables plugin or something similar?)

offer help

  • a registration form, in which you will be asked for your name, location, email address, telephone and services offered
  • A consent checkbox that requires users to agree their data is published


  • There would be no messaging service, users would have to contact volunteers by phone / email
  • Volunteers would have to agree that their personal information is visible to the public
  • Users have the option to remove their data at any time
  • would be developed with HTML, CSS, JS, PHP, MySQL

Ideally, I want to use Google Maps to give users the ability to filter by location. However, I think this is an advanced feature that I could work on in the background.

Can anyone see problems with this web application idea, either from a usability, legal or privacy point of view?
Can anyone suggest an (easy to develop) feature that would improve the service?

I don't have the time or resources to coordinate support or manage support requests, etc. That is why I think it is important to do so very It is made clear to volunteers that their data will be published.

This is something that I want to develop fairly quickly. I have limited time and skills.

I am open to suggestions / links to existing similar applications or repos would be of great help!

Performance – laptop significantly slows charging / connecting white

(TL; DR is at the end of the post)

Hello everybody.

My current laptop is an HP 15-r218nv. I know this isn't the best laptop for games, but it does the job. I bought it 3 years ago and it worked great all the time. The laptop started to overheat last year, and because I didn't have the money to clean it, and I wasn't sure enough to open it and clean it myself, I took out the battery, the easiest and most efficient way to do this Do reduce the heat and don't lose much power. I continued to play games as usual, and about 4 months ago there was a storm and the storm roasted the power stone. I was recently given another laptop and the charger for this new laptop could fit in my old one and charge it. So I decided to reset the old one to factory settings and update it to Windows 10 version 1903 (I had Windows 10 version 14XX).

Since I have a charger, I have to reconnect the battery of the old laptop. I did that and downloaded some games again. I started playing games and I noticed something strange playing CS: GO. I played CS: GO without charging the laptop and I had great frames per second, around 100 frames per second. The battery had a low percentage and I plugged the charger into the laptop and immediately noticed a drop in fps to 20 fps and a decrease in CPU and GPU usage from ~ 80% to ~ 35% and ~ 100% to ~ 50 %.

I thought the drop in FPS was due to the laptop changing some options and settings due to the battery / power plan. So I waited a few seconds, but the FPS didn't bounce back. When I noticed that the fps would not jump up again, I pulled the power plug out of the socket to do a test and see what the fps would look like. My fps jumped straight back to 100 fps. The next day I decided to run CS: GO again and again noticed low fps. I tried a method other than the problem to see if it would solve the problem.

My laptop has an Intel Core i7-5500U and an Nvidia GeForce 820M. I use the integrated graphics as it is more responsive and faster than the Nvidia GPU.
In the NVIDIA Control Panel, I can choose which GPU to use for each program, and I thought I forgot to switch the preferred GPU for CS: GO to the integrated graphics, but that wasn't the case. I thought the control panel was faulty, so I disabled the Nvidia GPU through Device Manager. The game was still sluggish.

I reactivated the Nvidia GPU and searched for answers to my problem on Google. The alleged solutions I found were:
It may be a BIOS setting. This could be the reason, and I might say because I can't see a setting that would cause this, but my BIOS has a very limited number of settings that I can change.
A power / battery plan option is faulty, which is not the case
Maybe I configured things wrong in the control panel of the Intel iGPU, which is not the case either

Neither of these solutions worked, and I have no idea what to do next. If anyone has any idea what the problem might be, I would appreciate it if you could help me

The CPU and GPU utilization of my laptop drops considerably when it is connected and is almost halved. Changing the BIOS does not help, the energy / battery plan is configured correctly and the configuration on the graphics control panel is set correctly. I don't know what to do next.

Networking – improved bandwidth at home by connecting or merging mobile data and home internet (via an Utp cable)

Work from home with children and soon a spouse. So I'm thinking of increasing my internet performance. I have broadband, nominally 100/40 bit / s, but struggle with higher loads.
And I have a pretty decent 4G bandwidth.
Ubuntu 04/18/4

With an excellent tutorial here I was able to connect my home Ethernet and my mobile hotspot.
Well i think i was. Once I got it up and running, I ran a speed test and noticed no difference.

The default configuration in the tutorial is "failover". It is therefore not surprising that no bandwidth improvement has been achieved.

I quickly realized that there are a lot that I don't know.

1] Is it possible to connect two such interfaces that are each connected to different networks? I think it should be.

2] There are load balancing modes: round robin and two adaptive modes. In practice, do these actually have advantages for a single user on a laptop?

I tried to use one of the adaptive load sharing modes, but I didn't see any improvement in the speed test either.

3] There is something more modern called "teaming", but I could not understand whether it is equivalent for my purpose

USB 3.0 cable for connecting the laptop with an additional monitor

I tried to connect my laptop to an additional monitor to use it as an expanded display (using the cable shown in the picture. I am not sure if this can be used to expand the display). The laptop does not recognize the monitor when it is connected.

Is this cable for display? Or is there a setting that I can change on the laptop to correct it?

Cable is also shown here

Algorithms – Calculate the number of triangles that can be formed by connecting special nodes in a tree

Problem source: CHGORAM2
Problem: A tree is given to us and its nodes are marked as 1 or 0. We have to calculate how many triplets (x, y, z) can be formed so that the nodes x, y, z are marked as 1 and distance (x, y) = distance (y, z) = distance (z, x) Here the distance (x, y) denotes the distance between the nodes x and y. X, y, z must also be different.

I can only solve it with brute force. But Editorial mentions an O (n) solution that I didn't understand.

Please help.

This will prevent adb from connecting to a network device

When I run adb devicesI not only see my phone connected via USB, but also a network device that I am not interested in. This forces me to manually specify which device I mean when I use adb and Android Studio (which I sometimes forget). Is there a way to prevent it adb from connecting to network devices?

FWIW, here is what I see on the shell (with some digits of the serial number of my first device hidden):

$ adb devices
List of devices attached
HT8531AXXXXX    device device

phpmyadmin – Error connecting Symfony to MySQL

I have a Symfony project that I am trying to connect to a BBDD. I have the MySQL with WAMP.

The symfony .env I have it like this and the MySQL password and username are fine because I can enter the following from PHPMyAdmin:

###> doctrine/doctrine-bundle ###
# Format described at
# For an SQLite database, use: "sqlite:///%kernel.project_dir%/var/data.db"
# Configure your db driver and server_version in config/packages/doctrine.yaml
###< doctrine/doctrine-bundle ###

I entered this command from the console in the Symfony project
php bin/console doctrine:database:create but it gives me back those mistakes.

In AbstractMySQLDriver.php line 106:

  An exception occurred in driver: could not find driver  

In PDOConnection.php line 31:

  could not find driver  

In PDOConnection.php line 27:

  could not find driver  

doctrine:database:create [--shard SHARD] [--connection [CONNECTION]] [--if-not-exists] [-h|--help] [-q|--quiet] [-v|vv|vvv|--verbose] [-V|--version] [--ansi] [--no-ansi] [-n|--no-interaction] [-e|--env ENV] [--no-debug] [--] 

If you could help me, I would really appreciate it.
Thank you