Network Security - securing network infrastructure and connections

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Router admin password was changed, how did this happen and how to prevent [closed]

Internet was extremely spotty for about a week. I was on/off cycling the cable model and router almost daily, before I tried to sign into my router (198.162.1.1). When I did I was presented with a ...
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3answers
496 views

Repudiation in Copyright Infringement (BitTorrent)

Seeing this question : How can alleged illegal downloading be detected? sparked a question I have had for a long time. How does repudiation/non-repudiation work in such cases ? Argument: It is known ...
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2answers
230 views

Has networking using multiple “unrelated” connections to share an encrypted data stream been researched?

I'm not exactly an expert, so I'm hoping you'll give me the benefit of the doubt and try very hard to make sense of this... I've been thinking about a simple measure, which I'll call Multiple ...
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1answer
246 views

Maximum protection on a computer network?

I would like to secure as much as possible a computer I am using to sync sensitive data files from work to my home pc. The syncronisation is being done by only 1 software is there a firewall to allow ...
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1answer
6k views

What are SSDP notify requests and where can I find out exactly what this traffic is?

What is a SSDP protocol request with notify http/1.1 ? How can I find out what this network traffic is?
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2answers
265 views

Which private-key encryption should I use for server to server communication?

I am tempted to write my own which covers: Checksum to ensure data is not tampered with. Long and multiple rotating keys so that it is (practically) impossible to decrypt. Will use /dev/random for ...
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2answers
135 views

How to secure Epson Beamer?

I work in a school and we have several Epson Beamers but some of our students have download an application for their mobile (with infra-red and WiFi connection) and they now have remote control and ...
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2answers
161 views

Shared Database and PCI Compliance

Say we have a cloud based web application which is SaaS. This application is to be made PCI compliant as a service provider, as client card data passes through the application. This application uses a ...
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4answers
429 views

Learn about network and security for securing a server

I'm setting up an OpenBSD server that I want to connect to the Internet (it's going to be used to host a site - so, with Apache, SQLite and the like). I want it to be as secure as possible. Social ...
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1answer
1k views

syn flood size per second

Given the size of a TCP packet is 60 bytes, there is a SYN Flood attack on a computer made ​​by a 100 Mb bandwidth, the question is how many syn packets are sent in a second? Is there any formula for ...
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1answer
256 views

Can accounts still be logged onto if Password Caching is not enabled?

This is kind of an extension of my other question.. If you were not storing any of the passwords locally (caching disabled), would a user some how still be able to circumvent around this security ...
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1answer
120 views

Starting a new job after working at home for years. How to best protect data, secrets, and privacy in the workplace?

I have just started interviewing for new computer job after years of working from home. At home I feel very secure with how I protect myself from data loss and keeping my secrets secure. I backup ...
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1answer
2k views

Dual Firewall DMZ

We've just learnt about firewalls and DMZ and I'm struggling to understand how are these actually implemented ? The architecture we've learned was something like this: Let's say that we have a ...
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3answers
780 views

Why there are uninvited incoming packets to my ADSL connection?

To verify this, I boot my PC from Kali Linux live distro. Before establishing ADSL/PPP connection, I start Wireshark and listen on any pseudo device. Then I create the connection to ISP network. ...
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1answer
401 views

Is using a local DNS cache server more secure than using a DNS server from a router?

Is using a local DNS cache server imore secure than using a DNS server from a router?