How do universities and schools securely sync passwords between multiple services?

I’m a student and it seems every school or university I have been to has one password that you set for your user account for logging in to university services, which is also then synced to external services the university use such as blackboard, fronter, dropbox, Office 365 e-mail, etc.

Lesson 1 of cybersecurity is not to store passwords in plain text or to encrypt them. But instead to use some sort of hashing algorithm. If this is true how can a university’s IT service automatically sync password for all the relevant accounts? I can understand how this can be done by using APIs each time to update all the services when a password change has been requested, but it would then make it impossible to adopt a new service without the user re-entering their password.

How is it done? or are they just holding passwords in plain text?

Python 3 | Differences between age = input() (and a number as input) and age = 18

I’m beginning to learn Pythond, and I don’t get why this is accepted

    age = 18 print('u are ' + (str(age + 1)) + ' years old') 

But not this

age = input() #I answer with a number as input print('u are ' + (str(age + 1)) + ' years old') 

And instead, I’ve to do this:

age = input()     print('u are ' + str(int(age) + 1) + ' years old') 

How to move specific list items between site collections

I have a project to break up our large, single site collection/database into multiple separate site collections, with each collection having its own database. I know how to do that natively, but the obstacle is that I’m required to break up existing content and move it to the new locations. For example, I might need to copy/migrate 3072 list items out of 78000.

The only way I know of to do this is duplicate the site via backup and then delete un-needed items. However, space is a concern, so it’s not practical to copy the entire site in such a way. I can manually recreate the site, but manually copying hundreds (if not thousands) of list items is not really practical, either. As well, there are linked lookup values that would probably break if the IDs change from source to destination.

Is there a way – either via SharePoint UI, Powershell, or 3rd-party application – to migrate specific list items between different site collections, while keeping all metadata intact?

ADDITIONAL INFO: This is a SharePoint 2013 Enterprise farm. All site collections will be under the same web application. All content databases will be under the same SQL instance, using MS SQL 2012. I’m willing to look into 3rd-party apps like DocAve, but would love to hear from someone who has actually done this sort of project successfully.

I have direct access to the servers and can muddle through writing powershell scripts or even C# code if needed, although I’m by no means a professional developer.

Magento 2 – Difference Between “Separately” and “Together” in Bundle Products

As I created a bundle product and checked the difference between “Separately” and “Together” by visiting/ordering this product in both condition but didn’t find any difference.

Please visit here for more understanding:- 

When I changed to “Separately” then I expected that on the cart/checkout page I’ll get the option to choose individual shipping for each item( e.g- “1st T-shirt”, “2nd T-shirt” etc) but not getting like that.both option seems same for me.

Here is the definition for both option:-

1- Together

Shipping together means that you can create one shipment for entire bundle items.


if you choose to ship bundle items separately, you need to notice when creating the shipment for each bundle item.

Please explain in detail so that I can understand well.


Is there any relationship between grammar being ambiguous and the language itself?

According to my understanding, a grammar is ambiguous if it generate strings which can be interpreted in more than one ways ( that is , more than one parse tree), but when it comes to the language itself , is there any kind of relationship between the language itself and the ambiguous nature of a particular grammar that could generate it. Also , I am having another doubt , Is it possible that there should exist,infinite number of grammars that could generate the strings of a particular language ?

The Difference Between UX and UI Design

We’ve all overheard conversations, walking down hip streets of the world’s tech capitals, discussions about the great ‘UX’ of a product, or the poor ‘UI’ of a website. Is it a secret language you will never be privy to? Are these people just using slang to look cool?

Well, ok probably yes to the latter, but a determinate NO to the rest. Read on to learn what these terms mean, which jobs are better paid, and how to become a UX designer or UI designer.

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The Difference Between UX and UI Design

Reference for compact embedding between (weighted) Holder space on $\mathbb{R}^n$

Suppose $ 0<\alpha<\beta<1$ , and $ \Omega$ is a bounded subset of $ \mathbb{R}^n$ . Then the Holder space $ C^{\beta}(\Omega)$ is compactly embedded into $ C^{\alpha}(\Omega)$ . But if $ \Omega=\mathbb{R}^n$ , then the compact embedding is not true.

However, if we consider the weaker weighted Holder space $ C^{\alpha, -\delta}(\mathbb{R}^n)$ (for any $ \delta>0$ ) instead of $ C^{\alpha}(\mathbb{R}^n)$ . Then is $ C^{\beta}(\mathbb{R}^n)$ compactly embedded to $ C^{\alpha, -\delta}(\mathbb{R}^n)$ ?

Here $ $ \|f\|_{C^{\alpha, -\delta}}=\|(1+|\cdot|^2)^{-\frac{\delta}{2}}f\|_{C^{\alpha}}. $ $

I could not find a precise reference from some books on functional analysis. Any comment is welcome.

Give a list of a from area code and to area code and a distance between them,which data structure?

What data structure i can use to lookup given a fromCode and toCode apart from hashMap which results in more number of entries in the memory. We are ok with log(n) efficiency also. Example data:

fromCode    toCode  distance 100          200     10 100          300     20 -----      ----     ---- 

Assume fromcode and tocode are some integer values and you might get sorted data as well.