Security issues in QEMU

My intention is to add support in QEMU for a new machine/platform. I just started this project, so I can’t say more details about it because I don’t know them. My question is related about the possible security issues that could occur. What are the main security problems about what I should take care?

SQL JOIN ON Issues

I am trying to use a JOIN ON statement to SELECT two columns, one with the Team_Name and the other with how many times they have won. I want to include all teams, even those who haven’t won at all.

This is the JOIN statement that I’ve been using but it only returns the Team_Name Poki and a WinningTimes of 0 which is incorrect as they’ve won once

SELECT Team_Name, SUM(Winner) AS WinningTimes  From Robot_Winner r JOIN Robot_Combat c ON r.BattleNo = c.BattleNo;    Team_Name    WinningTimes Poki         0 
Create Table Robot_Combat ( BattleNo VarChar(3) Not null, Team_Number Int Not null, Team_Name VarChar(8) Not null, Bot_Name VarChar(8) Not null, Primary Key (BattleNo, Bot_Name) );  Create Table Robot_Winner ( BattleNo VarChar(3) Not null, Winner VarChar (10) Not null, Primary Key (BattleNo), Foreign Key (BattleNo) References Robot_Combat(BattleNo) ); 

This is the data inside each table

Robot_Combat BattleNo [PK]   Team_Number Team_Name   Bot_Name B07             1           A1          S1 B07             2           Poki        Pika B08             1           Phenix      Kka B08             2           StarWar     R2 B11             1           APT         4869 B11             2           Phenix      RedWin B12             1           T1          E1 B12             2           S3          Sam5  Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B07', 1, 'A1', 'S1'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B07', 2, 'Poki', 'Pika'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B08', 1, 'Phenix', 'Kka'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B08', 2, 'StarWar', 'R2'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B11', 1, 'APT', '4869'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B11', 2, 'Phenix', 'RedWin'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B12', 1, 'T1', 'E1'); Insert Into Robot_Combat (BattleNo, Team_Number, Team_Name, BotName) Values ('B12', 2, 'S3', 'Sam5');  
Robot_Winner BattleNo [FK][PK]   Winner B07                 Poki B08                 Phenix B11                 Phenix B12                 S3  Insert Into Robot_Winner(BattleNo, Winner) Values ('B07','Poki); Insert Into Robot_Winner(BattleNo, Winner) Values ('B08','Phenix); Insert Into Robot_Winner(BattleNo, Winner) Values ('B11','Phenix); Insert Into Robot_Winner(BattleNo, Winner) Values ('B12','S3); 

Workflow Manager security configuration issues?

I have been trying to install the Workflow Manager on our SharePoint farm. I verified that all services are running (Service Bus message broker, Service Bus Gateway, Windows Frabric Host Service and the Workflow Manager backend) and they do under a farm account that I specified.

However, when trying to access the Worfklow Manager site it returns the following XML:

<?xml version="1.0"?>     <ScopeInfo xmlns="http://schemas.microsoft.com/workflow/2012/xaml/activities" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">     <DefaultWorkflowConfiguration/>     <Description>Root Scope</Description>     <LastModified>2014-06-18T15:56:53.21</LastModified>     <LastRevised>2014-06-18T15:56:53.21</LastRevised>     <Path>/</Path>         <SecurityConfigurations>             <ScopedSecurityConfiguration i:type="WindowsSecurityConfiguration">             <Name>Microsoft.Workflow.Management.Security.WindowsSecurityConfiguration</Name>             <WorkflowAdminGroupName>BUILTIN\Administrators</WorkflowAdminGroupName></ScopedSecurityConfiguration>         </SecurityConfigurations>     <Status>Active</Status>     </ScopeInfo> 

What is the resolution for this? I have been going through Microsoft TechNet’s articles but couldn’t troubleshoot the issue.

Thanks for your support.

[ Buying & Selling ] Open Question : BOUGHT A USED CAR FROM AUTONATION TWO DAYS AGO AND HAS MOTOR mount ISSUES, should I return for my money back or fix?

I bought a car two days ago checked it with my husband. After a few days driving I realized there is a vibration that keeps bothering me. The motor mounts ended up being the problem. I spent so much money on the deposit for the car that it’s hard for me to fix it at this point. The car has a 5-day money back guarantee. I have mixed feelings, should I fix it for $ 500 if the car is worth $ 10,000 based on the inspection. I paid $ 8,900 but I feel like the dealer should have taken care of it. FYI it’s in FL, the car is a Lexus RX 330 old model 2004. Dealer said I should have purchased the warranty if I wanted them to fix it. But they didn t disclose the information on the motor mounts that was stated in the INSPECTION DOCS I found later in the hood of the car from August of this year. They did not fix them because of the cost. Can they sell a car like that without letting you know? I feel very shady about this whole situation… I have a mechanic who will fix the 3 motor mounts for $ 300 but I put so much money into the deposit and insurance… dont know if its worth it Dealer said they will not fix it because I did not purchase the warranty but dont they have to disclose any major issues? Also, they have a 5 day money back guarantee so Im thinking thats my only option. The mechanic saw the rest of the car and said everything else is good. Brakes are new and compressor and valves look new, no leaks.

[ Buying & Selling ] Open Question : BOUGHT A USED CAR FROM AUTONATION TWO DAYS AGO AND HAS MOTOR mount ISSUES, should I return for my money back or fix?

I bought a car two days ago checked it with my husband. After a few days driving I realized there is a vibration that keeps bothering me. The motor mounts ended up being the problem. I spent so much money on the deposit for the car that it’s hard for me to fix it at this point. The car has a 5-day money back guarantee. I have mixed feelings, should I fix it for $ 500 if the car is worth $ 10,000 based on the inspection. I paid $ 8,900 but I feel like the dealer should have taken care of it. FYI it’s in FL, the car is a Lexus RX 330 old model 2004. Dealer said I should have purchased the warranty if I wanted them to fix it. But they didn t disclose the information on the motor mounts that was stated in the INSPECTION DOCS I found later in the hood of the car from August of this year. They did not fix them because of the cost. Can they sell a car like that without letting you know? I feel very shady about this whole situation… I have a mechanic who will fix the 3 motor mounts for $ 300 but I put so much money into the deposit and insurance… dont know if its worth it Dealer said they will not fix it because I did not purchase the warranty but dont they have to disclose any major issues? Also, they have a 5 day money back guarantee so Im thinking thats my only option. The mechanic saw the rest of the car and said everything else is good. Brakes are new and compressor and valves look new, no leaks.

Numerical issues in solving linear systems

There was an exam in the class. The course is “High Performance Scientific Computing”. One of the question in the exam is as follows:

Consider the linear system

$ $ \begin{bmatrix} a & b \ b & a \end{bmatrix} \times \begin{bmatrix} x \ y \end{bmatrix} = \begin{bmatrix} 1 \ 0 \end{bmatrix}$ $ with $ a,b>0$ .

a) If $ a$ is very similar to $ b$ , what is the numerical difficulty in solving this linear system?

b) Suggest a numerically stable formula for computing $ z = x + y$ given $ a$ and $ b$ .

This is a Computer Engineering course, however I am not able to answer these questions. What is the keyword to find a solution on the issue?

Thanks in advance.

I will fix WordPress website issues and bugs for $5

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ASUS UX534FT sound issues

I recently bought an ASUS Zenbook UX534FT and installed Ubuntu for some work with ROS. Unfortunately I am unable to hear any sound after the install both through inbuilt speakers or headphones(no trouble detecting headphones). I checked through pavucontrol and alsamixer to make sure that the devices aren’t muted. It looks like a similar issue has been reported for the previous generation zenbooks here

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826645

but I’m not really familiar with Ubuntu to make sense of this. Grateful for any help I can get here.

How to get sorted Gnome usability issues in Desktop?

I’ve instaled Ubuntu 19.04 from scratch after an issue with my old ubuntu installation.

I’ve found that now it uses Gnome instead of Unity. I like gnome, but I have a couple od important usability issues that I assume are easily configurable, and I just don’t know how to.

  1. The full name of each file used to appear in Desktop icons, and if it were too long, when I clicked on the icon the full name would appear, even in long names.

Not now, as you can see:

enter image description here

  1. Besides that, as you can see in the image attached, if I click on an image, the preview won’t appear either.

  2. When doing anything in dektop before, like deleting a icon or moving it, I could easily press CTRL + Z and it would undo the action. How may I do that now?

I tried to search for these issues instead of asking, but I’ve not found anything that actually got them sorted.

Please note that I’ve installed Gnome Tweaks.