network programming – Get Startup Configuration in text format from Dell S5248F switch

The only way I can backup the startup-configuration of my Dell EMC PowerSwitch S5248F-ON switch is to use the following:

    copy config://startup.xml tftp://10.0.2.77/ConfigFile.xml

The issue with this is that it copies the config in XML format. I use a tool called NCM from ManageEngine to backup both the startup and running configs. The running config is in text format. The startup config is in xml format. This causes NCM a problem because it compares the Running Config to the Startup Config and since they aren’t in the same format, it thinks the device is out of compliance.

For reference, the command to copy the running config is:

copy running-config tftp://10.0.2.77/RunningConfig.txt

There is no copy startup-config command so is there another command I’m missing in order to accomplish this?

Thanks in Advance!

eps format – Save out plot and plot legend

I am attempting to save out a plot to .eps file, but cannot get the legend to come with it. Copying and pasting the image, saving as a JPEG and converting to .eps loses too much resolution for it too look good. Is there any way that I can save out a plot with its legend directly to .eps from Mathematica?

Email Format Broken When Sending Emails in Gmail

I recently noticed that emails sent out of my school gmail account were not utilizing the full space for text. For some reason, the body of the email breaks every 10 or so words to a new line. Attached is an example of this:enter image description here

How do I redirect all 404 URLs to a subdomain with same URL format using WordPress?

How do I redirect Pages from the main site with 404 Status to the Subdomain with same URL Structure?

This for example:

https://www.example.com/rent

this returns a 404 Error and must be redirected to:

http://subdomain.example.com/rent

Is this possible on WordPress? If it is how can we do it?

segregated witness – Why does Taproot require a new address format?

Background

P2TR addresses will be encoded using bech32, although likely an amended version. In anticipation of Taproot getting merged, some proponents tested the behavior of various wallets and services regarding segwit v1 outputs. The spec prescribes that higher versions should always be allowed to create, but treats unknown versions as non-standard (i.e. should drop and not forward transaction when received unless included in a block). The testing found that multiple wallets and services did not adhere to the spec, but rather either failed to create segwit v1 outputs, or worse, silently downgraded them to segwit v0 outputs, i.e. used the same output script except that the segwit version was changed. The latter burns the funds.

Additionally, someone discovered that bech32 is subject to a length extension mutation (see e.g. How does the bech32 length-extension mutation weakness work?), which is provisionally mitigated by the fact that addresses are only permitted to be 42 or 62 characters.

The current proposal is to fix both of these issues by amending the constant in the checksum calculation for bech32. This would protect funds from being burned as downgraded segwit v1 outputs would fail to comply with segwit v0 requirements, and at the same time remedy the length extension mutation for segwit v1-v16.

Paying to segwit v1 addresses

Originally, the expected outcome was that any spec-conforming implementation of segwit would be able to send to segwit v1 outputs out of the box as the BIP prescribed allowing creation of sends to higher versions by default.
After testing, it would have at least often required amendments to allow sending to such addresses, now, it’ll also require adjusting the checksum constant for segwit v1-v16 bech32 addresses.

Spending from P2TR outputs

The Taproot BIP itself also prescribes a new script version (Tapscript), Schnorr signatures, and the Taproot spending path, so spending from P2TR outputs will require being able more work.

Issue with HTML table format

I am working on a a html form which is used by a third party tool which takes HTML format to generate the output form.

Here is the html output:

enter image description here

The issue which I am facing is when I trying to separate below marked table to a new table I am loosing the format. Can anyone please guide me how to maintain the same format when I remove the below mentioned table to a new table.

Here is my HTML code:

<table cellpadding="1" cellspacing="1" style="width: 100%; border-collapse: collapse; border: solid;">
    <tbody>
        <tr>
            <td rowspan="4" style="width: 289.333px; text-align: center; border: solid;"><span style="font-family: Calibri, sans-serif; font-size: 11px;">section 1</span></td>
            <td rowspan="4" style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">section 2</span></span></td>
            <td rowspan="4" style="width: 289.333px; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">section 3</span></span></td>
            <td rowspan="4" style="width: 7px; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">4</span></span></td>
            <td colspan="7" style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">(4)<br>&nbsp;DAY AND DATE</span></span></td>
            <td rowspan="4" style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">(5)<br>&nbsp;section</span></span></td>
            <td rowspan="4" style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">(6)<br>&nbsp;section</span></span></td>
            <td rowspan="4" style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">(7)<br>&nbsp;section</span></span></td>
            <td colspan="4" rowspan="3" style="text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">(8)<br>&nbsp;DEDUCTIONS</span></span></td>
            <td colspan="3" rowspan="4" style="text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">(9)<br>section<br></span></span></td>
        </tr>
        <tr>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Sun</span></span></td>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Mon</span></span></td>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Tue</span></span></td>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Wed</span></span></td>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Thur</span></span></td>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Fri</span></span></td>
            <td style="width: 1.5%; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;Sat</span></span></td>
        </tr>
        <tr>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 1.5%; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
        </tr>
        <tr>
            <td colspan="7" style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;"><br></span></span></td>
            <td style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">Tot</span></span></td>
            <td style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">Tot<br></span></span></td>
            <td style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">Tot<br></span></span></td>
            <td style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">Tot</span></span></td>
        </tr>
        <tr>
            <td colspan="21" style="width: 289.333px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
        </tr>
        <tr>
            <td rowspan="2" style="width: 289.333px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;"><br></span></span></td>
            <td rowspan="2" style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 289.333px; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 7px; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td colspan="3" rowspan="4" style="text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
        </tr>
        <tr>
            <td style="width: 7px; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
        </tr>
    </tbody>
</table>
<p><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></p>
<table>
    <tbody>
        <tr>
            <td rowspan="2" style="width: 289.333px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;"><br></span></span></td>
            <td rowspan="2" style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 289.333px; border: solid; text-align: center;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 7px; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td rowspan="2" style="width: 3.7763%; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td colspan="3" rowspan="4" style="text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
        </tr>
        <tr>
            <td style="width: 7px; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 269px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 70px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-size: 11px;"><span style="font-family: Calibri, sans-serif;">&nbsp;</span></span></td>
            <td style="width: 150px; text-align: center; border: solid;"><span style="font-family: Calibri, sans-serif; font-size: 11px;">&nbsp;</span></td>
        </tr>
    </tbody>
</table>

Quickbooks InvoiceAdd qbxml format issue

I must be missing out something in the format of my XML file for adding an invoice to Quickbooks Desktop Enterprise US version, my qbxml request is as follows;

   <?xml version="1.0" encoding="utf-8"?>
<?qbxml version="13.0"?>
<QBXML>
  <QBXMLMsgsRq onError="stopOnError">
    <InvoiceAddRq>
      <InvoiceAdd>
        <CustomerRef>
          <FullName>XXXXXXXXX</FullName>
        </CustomerRef>
        <ClassRef>
          <FullName>XXXXXXX</FullName>
        </ClassRef>
        <ARAccountRef>
          <FullName>XXXXXXXXXX</FullName>
        </ARAccountRef>
        <TemplateRef>
          <FullName>Standard invoice</FullName>
        </TemplateRef>
        <TxnDate/>
        <RefNumber>83434</RefNumber>
        <BillAddress>
          <Addr1>4xxxxxx</Addr1>
          <City>xxxxxxxx</City>
          <State>XX</State>
          <PostalCode>0000</PostalCode>
        </BillAddress>
        <IsPending>1</IsPending>
        <IsFinanceCharge>0</IsFinanceCharge>
        <PONumber>12345</PONumber>
        <TermsRef>
          <FullName>Net 30</FullName>
        </TermsRef>
        <DueDate/>
        <SalesRepRef/>
        <FOB/>
        <ShipDate/>
        <ShipMethodRef/>
        <ItemSalesTaxRef/>
        <Memo/>
        <CustomerMsgRef/>
        <IsToBePrinted>0</IsToBePrinted>
        <IsToBeEmailed>0</IsToBeEmailed>
        <IsTaxIncluded>0</IsTaxIncluded>
        <CustomerSalesTaxCodeRef/>
        <Other/>
        <ExchangeRate>1</ExchangeRate>
        <SetCredit>
          <CreditTxnID>1</CreditTxnID>
          <AppliedAmount>0</AppliedAmount>
          <Override>1</Override>
        </SetCredit>
        <InvoiceLineAdd>
          <itemRef>
            <FullName>S-check UT</FullName>
          </itemRef>
          <Desc>Interpreter</Desc>
          <Quantity>1</Quantity>
          <UnitOfMeasure/>
          <Rate>10</Rate>
          <RatePercent>100</RatePercent>
          <PriceLevelRef/>
          <ClassRef/>
          <Amount>10</Amount>
          <OptionForPriceRuleConflict>0</OptionForPriceRuleConflict>
          <InventorySiteRef/>
          <InventorySiteLocationRef/>
          <SerialNumber/>
          <LotNumber/>
          <ServiceDate/>
          <SalesTaxCodeRef/>
          <OverrideItemAccountRef/>
          <Other1/>
          <Other2/>
          <LinkToTxn>
            <TxnID>0</TxnID>
            <TxnLineID>0</TxnLineID>
          </LinkToTxn>
          <DataExt>
            <OwnerID>3caa4f6f-fcb3-4767-99e6-0ba5dfd34e8f</OwnerID>
            <DataExtName>Sample</DataExtName>
            <DataExtValue>Sample</DataExtValue>
          </DataExt>
        </InvoiceLineAdd>
      </InvoiceAdd>
    </InvoiceAddRq>
  </QBXMLMsgsRq>
</QBXML>

When i check this xml request using the qbxml validator i’m getting the following error message even though i have supplied all the required fields as outlined in the OSR tool;

   Line: 53
    LinePos: 20
    Src Text: <itemRef>
    Reason: Element content is invalid according to the DTD/Schema.
    Expecting: ItemRef, Desc, Quantity, UnitOfMeasure, Rate, RatePercent, PriceLevelRef, ClassRef, 
    Amount, TaxAmount, OptionForPriceRuleCon....

I’m not sure about what’s wrong with my xml file, when i run the quickbooks webconnector, the error message i get is;

Message: QuickBooks found an error when parsing the provided XML text stream.

I understand this is coming up because of the wrong format of my qbxml request which could be incorrect. Kindly assist

How to get raw tx in hex format by not fetching API from provider?

I’ve looking for some solution to encode raw transaction in hex format by programmatically without fetching data from any blockchain provider. Are there any way to do this?

c – Can you perform a buffer overflow and a format string attack at the same time?

So I hope I’m phrasing this right. I’m trying to exploit a piece of c code which you can see below.

#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>

int user_age;
void secretClub(){
  if(user_age<18){
    printf("Come back when your old enough!!");
  }
  else{
    printf("Come on in.");
}
}

int main(){
  char name(30);
  user_age = 17;
  gets(name);
  printf("Hello there ");
  printf(name);
}

What I’m trying to do here is call the secretClub function and to print “Come on in”. So I know if I wanted to just call the secretClub function, I could just overflow the buffer enough with the memory address of the function at the end. And I know that I can use this programs string format vulnerability to modify the variable’s value in memory.

What I’m wondering is how to do both in one line? Sorry if this seems like a stupid and obvious question, upon searching I couldn’t find much. Any guidance would be greatly appreciated!

SharePoint list How to restrict input value format

I have a column with name Secure in my SharePoint list. And I want to set validation in that column as below mentioned conditions. and if any user not entered in that format than , he will not able to save the form.

Condition :-

  1. it should contain total 12 characters
  2. first four character should be Alphabet (i.e. A to Z)
  3. next 4 characters should be any number between 0 to 9
  4. next 4 character should follow DDMM format (i.e. DD should allow maximum value 31/30/29/28 as per month and MM should between 01 to 12)