Encrypt and Authenticate localhost-traffic? [closed] - security

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I have some app-components on the same machine but in different languages that need to communicate. I am using socket communication over localhost to do so. The data transferred is confidential.
Should this communication be encrypted?
I mean an attacker would have to be able to run code on the machine in order to intercept this and in that case the user lost anyway, right?

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https://www.instagram.com/anyuser/media/ not working anymore [closed]

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I have a app use this request url https://www.instagram.com/anyuser/media to get public ig json,
but now it just not working anymore.
I've checked Instagram blog, and no any announcement are found.
Anyone know what's going on?
https://www.instagram.com/{USER-NAME}/media/ was never officially supported or documented by Instagram. So never rely on undocumented or private APIs.

How did google made reverse domain "http://com.google" for April fools day 2015? [closed]

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You can find a reversed google page at https://com.google/.
As far I know, the domain name for ".google" sites does not exist.
I searched who.is for it and the service tells that the domain "google" does not exist (as expected) - you can see it here: http://who.is/whois/com.google
My question is how did they do that!?

Deny or Allow spesific user to connect my LocalIIS server [closed]

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I just need an idea about ı want to control who can use my web application.For example I am using my web application on local IIS . I want x computer can see my web application but y computer can not .I need an approach.
thanks for help...
You are looking for IP or domain restrictions.
Check this http://www.iis.net/learn/manage/configuring-security/using-dynamic-ip-restrictions

Sending HTTP response to multiple clients [closed]

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I need to send a response to 2 clients, even though only one of them can make the request. How to do that?
you can use socket.io
http://socket.io/
First the clients open a connection to the server. Then the clients listen to a "event" that the server sends.

C# db connection security [closed]

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I have a small C# desktop application. It connects to postgres db server. I will distribute this application to some users.
Now my question;
Is someone can get my connection string (username, password) with local port listener software or any other software?
If answer is yes, how can I prevent this?
Thank you.
Yes. Your application could be decompiled and your app.config could have the password.
You could use an SSL connection and encrypted app.config.
Ideally, you could have a master service that would own talking to the database and your child applications would be clients.

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