Changing sign of elements of a list on even positions

I have a list of lists of equal sizes (odd or even), e.g.

list={{1,-2,3,1,3,4},{3,5,6,-1,9,0},{1,-2,-4,-5,1,5},{1,-1,2,3,5,4},...} 

I would like to change signs of every element which is on even or odd position. In the example above, for the choice of change on even positions, it should give the following result:

 listnew={{1,2,3,-1,3,-4},{3,-5,6,1,9,0},{1,2,-4,5,1,-5},{1,1,2,-3,5,-4},...} 

What is the most effective way to achieve this? (The length of list may be huge here).

Access Subdatasheet (plus sign) not showing in datasheet view form but shows in table or query

I want to show inside a form in datasheet view, the plus signs for viewing subdatasheet. I have tables properly linked, all is fine and I have subdatasheet set in table/query and it displays correctly and all information well linked.

I have a form based on that table/query that has the subdatasheet but when I open the form in datasheet view so that I can see the subdatasheet, this wont show up. The plus signs are not there.

I just want a form for looking up data, not for editing and subdatasheet view serves perfectly what I want to achieve but I don’t want to open tables or queries directly but inside a form.

can’t sign up for instagram

Hey

I am trying to sign up with instagram for a new account. Whenever I choose a username it shows "Sorry, that username is taken." then I click on the round arrow for automatic username generator and I click sign up and i get an error "Sorry, something went wrong creating your account. Please try again soon." and if I click again I get the same as first message "
Sorry, that username is taken."

so what's wrong? why can't I sign up?

ReplaceAll doesn’t replace all, factor out negative sign first

I have this matrix:$ $ \left( \begin{array}{ccccc} \{\{0\},\{0,0,0\}\} & \{\{1\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} \ \{\{-1\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} \ \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,z,-y\}\} & \{\{0\},\{-z,0,x\}\} \ \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,-z,y\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{y,-x,0\}\} \ \{\{0\},\{0,0,0\}\} & \{\{0\},\{0,0,0\}\} & \{\{0\},\{z,0,-x\}\} & \{\{0\},\{-y,x,0\}\} & \{\{0\},\{0,0,0\}\} \ \end{array} \right)$ $

When I run ReplaceAll (/.) on it using this$ $ \left\{\{\{1\},\{0,0,0\}\}\to X_1,\left\{\{t\},\left\{\frac{2 x}{3},\frac{2 y}{3},\frac{2 z}{3}\right\}\right\}\to X_2,\{\{0\},\{y,-x,0\}\}\to X_3,\{\{0\},\{z,0,-x\}\}\to X_4,\{\{0\},\{0,z,-y\}\}\to X_5,\{\{0\},\{0,0,0\}\}\to 0\right\}$ $

it doesn’t replace everything:

$ $ \left( \begin{array}{ccccc} 0 & X_1 & 0 & 0 & 0 \ \{\{-1\},\{0,0,0\}\} & 0 & 0 & 0 & 0 \ 0 & 0 & 0 & X_5 & \{\{0\},\{-z,0,x\}\} \ 0 & 0 & \{\{0\},\{0,-z,y\}\} & 0 & X_3 \ 0 & 0 & X_4 & \{\{0\},\{-y,x,0\}\} & 0 \ \end{array} \right)$ $

I expect:$ $ \left( \begin{array}{ccccc} 0 & X_1 & 0 & 0 & 0 \ -X_1 & 0 & 0 & 0 & 0 \ 0 & 0 & 0 & X_5 & -X_4 \ 0 & 0 & -X_5 & 0 & X_3 \ 0 & 0 & X_4 & -X_3 & 0 \ \end{array} \right)$ $

Is there an automated way of doing these replacements?

I am receiving a pluggable.php warning sign on my only http:// page

I just recently shared a link to my site ysing he http but instead of redirecting, i just displays this:

Warning: Cannot modify header information – headers already sent by (output started at /home/thecmltm/public_html/index.php:1) in /home/thecmltm/public_html/wp-includes/pluggable.php on line 1281

Warning: Cannot modify header information – headers already sent by (output started at /home/thecmltm/public_html/index.php:1) in /home/thecmltm/public_html/wp-includes/pluggable.php on line 1284

I have searched all over the web but they all talk about function.php or wp_configure.php but that is not what my problem is. I have tried editing the index.php but nothing is wrong with it.

Please help me. Thanks in advance!

Have I finally gone insane, or does the “sign up” page of BitMitigate redirect to 127.0.0.1? [closed]

I heard this mentioned today, so I looked it up: https://bitmitigate.com/

OK. Yet another ultra-confusing, nonsensical (to me) website with extremely unclear purpose. But once I clicked the big button saying "Get Started", which links to:

https://bitmitigate.com/user-panel/sign-up.html 

… my browser (Pale Moon) actually went to:

http://127.0.0.1/ 

What could possibly explain this? I also tried with uBlock Origin turned off. Same result.

How should I sign a CSR using a signature created in HSM, in C# .NET Core?

I’m exhausted after looking for an answer for 3 days. I don’t know if my suggested flow is wrong or my Google skills have really deteriorated.

My API needs to create a valid certificate from a CSR it received, by signing it with a private key that exists ONLY inside an HSM-like service (Azure KeyVault), which unfortunately doesn’t offer Certificate Authority functions BUT does offer signing data with a key that exists there. My CA certificate’s private key is stored in the HSM. I’m using ECDSA.

My suggested flow:

  1. Client generates Key Pair + CSR and sends CSR to API
  2. API creates a certificate from the CSR
  3. API asks HSM to sign the CSR data and receives back a signature
  4. API appends the signature to the certificate and returns a signed (and including CA in chain) certificate to the Client

Flow

I’m using C# .NET Core and would like to keep it cross-platform (as it runs in Linux containers), so I have to keep it as native as possible or using Bouncy Castle (which I’m still not sure if runs in Linux .NET Core).

I really appreciate your help!

Which membership plugin for a simple sign in? Personal areas for customers

Most of the membership plugins I have found seemingly operate on the logic of the website having paying subscribers. I am not looking to make a publishing/blogging website with restricted access to articles. I am not interested in a plugin that I must continually pay for. I won’t be billing my customers on a monthly basis.

Imagine a company website with a small login section.

I am looking for something that’ll allow me to restrict access to certain areas, each individual area restricted to the specific customer. Within this area, they might have access to reports or statistics or links that are personal.

I need a plugin that’ll assist me in maintaining a number of users, to which I myself have created their accounts (no sign-up procedure) and set the perimeters of access.

Is this doable with WordPress or should I be looking at an entirely different solution?

When a user registers their mobile number during sign up, how can we verify that they really own the mobile number?

A lot of websites send a 4-digit or 6-digit one-time code to a mobile number via SMS or phone call when the user registers a mobile number on the website?

Is this a secure way to validate the ownership of mobile number? Are there any issues with it?

If it is not secure, are there any better alternatives?