Network Security - securing network infrastructure and connections

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2answers
11 views

Does access to a BISmark router mean access my network?

Project BISmark aims to measure broadband service by recording and reporting on service using OpenWRT-based router firmware (software licensing unclear, no LICENSE or COPYING files in the repos) with ...
0
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4answers
105 views

Anonymity through Tor over VPN [on hold]

I want to do some research on network anonymity. Assume that I am careful enough not to disclose any personal information while connected to an anonymous network. If I run a system that uses TOR ...
3
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1answer
65 views

If I connect to VPN through proxy, who can see what?

I try to understand what happens when I use an HTTP(S) proxy in my OpenVPN client configuration. What's the advantage of an HTTPS proxy over plain HTTP? In any case the encryption takes place on the ...
1
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1answer
55 views

Communication between two open endpoints, is this secure enough?

I'm building a (very simple) tool to communicate between two servers. I started by asking if there was a better alternative than making a home made scripts and we came to the conclusion that for ...
1
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2answers
58 views

Facebook security

I check my security settings (from my Facebook acc.) from time to time, and sometimes I see there are IP addresses which logged into my account but don't belong to me. When I look in the web who is ...
-1
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2answers
86 views

Is it dangerous to use hamachi

In the Minecraft community people are firing up hamachi with Minecraft servers, but over all is a public hamachi dangerous for the host and all the users using it?
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2answers
117 views

Fake phone call

I have a problem, getting call from known numbers and when he lifts it, no one is speaking from other side! Well, the awkward part is, the call is from known numbers only, but if I ask the person ...
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2answers
90 views

Nmap scan list of domains and provide boolean if up/down

I have a newline separated list of domains that I would like to perform an arbitrary nmap scan on (e.g. aggressive, syn) and I would like to output a boolean that indicates whether or not any ports ...
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0answers
11 views

logging of data traffic to follow cyber law [migrated]

I have connected my ubuntu 14.04 computer to a "mirrored" port on my firewall, so that I can see all traffic on the network. I use this today to see who uses our bandwidth with NTOPNG. but since I ...
-1
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0answers
86 views

Can I used the command line to disable settings in Yosemite that have made my Mac visible? [migrated]

Recent changes to my machine as the result of an upgrade to Yosemite (OS X 10.10) have made my machine visible on Bluetooth and Bonjour, where it was not visible before. Is there a command line way ...
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2answers
89 views

Advice - When just starting your career, what are the best certifications to eyeball? [closed]

Im just starting out in school to study Network and Info Security. I know this is the field I want to invest my time and study into. Well over 200k security jobs went unfulfilled last year. My ...
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1answer
142 views

My computer hacked? tcpdump show a connection to an ALLOCATED UNSPECIFIED ip address

13:06:05.345111 IP 192.168.1.101.36218 > 157.55.130.174.40033: Flags [.], ack 162, win 237, options [nop,nop,TS val 688796 ecr 596714815], length 0 This IP address is Allocated Unspecified on ...
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0answers
59 views

Is it possible to retrieve SSH v2 credentials in a username/password authentication scheme?

I'm currently analysing a compromised network(root access has been gained to a workstation and logs show that it has been used for port scanning and service brute forcing attacks on the remaining ...
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0answers
55 views

Logging network traffic [migrated]

Don't know if this is right forum, so please excuse me for that. I have created a web service in ColdFusion and other application from outside the network is trying to access it via SOAP request ...
-1
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1answer
61 views

Shellshock vulnerability for pc inside LAN

A common pc running bash inside a home LAN network (with a router/gateway providing internet access to the LAN) does not have any contact with the external internet, except browser navigation and the ...
2
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3answers
217 views

Understanding the security of my home network

With so many devices that have internet connectivity, I really want to put something in place that can alert me if any application or device is communicating insecurely. How would I use something like ...
-1
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1answer
40 views

How strong exactly is a 3gbps booter?

I heard some people talking about how they had a 3 gigabyte per second drddosser. That sounds all fine and dandy, but what can that actually do? Could it take down a website? To what extent?
2
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1answer
85 views

How secure is WiFi roaming if clients connect automatically to access points with the same SSID and security?

After reading a bit about WiFi roaming where multiple access points are set up with the same SSID and WPA/WPA2 shared key, I'm wondering how secure the concept of WiFi roaming is. If clients connect ...
1
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1answer
68 views

How can we represent SSL and Firewall in OSI Model? [closed]

I want to draw an architecture diagram for a general ERP application. In that I have come across a confusing point: where should I place the SSL and Firewall? I tried to figure out exactly where ...
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0answers
53 views

How to retrieve type of device starting from its public ip

Given a public ip, is there a way to retrieve what's lying behind? I mean if I use nmap -PO 159.149.xx.xxx I am able to know if the device is alive (responding to ping) and which ports are open. But ...
2
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2answers
121 views

Computer's IP address used by another in closed network?

I got an alert in the newest OSX (newest Macbook Air) and in Eduroam network that my IP address is used by another machine. This is my first time in life. I think I may have been attacked because I ...
-1
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0answers
20 views

Which Industry verticals have made compliance under the Payment Card Industry Data Security Standard (PCI DSS) mandatory?

I know that a wide range of industries across different vertical markets are required to comply with the Payment Card Industry Data Security Standard (PCI DSS). Can you please state which Industry ...
1
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1answer
23 views

How can I implement a whitelist based on packet content?

At the moment I am looking for some way on Linux to have packetfilter whitelisting done but based on finegrained parameters such as packet content rather than more general parameters such as protocol ...
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0answers
8 views

Does 802.1X Multiple Hosts mode only work for access points or even through another switch? [migrated]

802.1X Multiple Hosts mode is usually used when an access point acts as a supplicant and authenticates to the switch, then allows further hosts by bridging it to the wireless network. My question is ...
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0answers
26 views

Using Team Foundation Server for Classified Projects

I work in a secure area on programs in which large portions of the code are federal government classified secret. We use Visual Studio so I would like to be able to use TFS for versioning control ...
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0answers
34 views

Tunneling Remote Desktop from DMZ Windows server to my Listening Linux Server. How to?

I have a situation in a penetration test where I got a meterpreter on an internal (DMZ) Windows box, and I want to connect via RDP to it, however the RDP port is blocked externally. The box I hacked ...
32
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4answers
5k views

Why does malware periodically check google.com

I'm looking at some malware PCAPs, e.g. http://malware-traffic-analysis.net/2014/05/27/index.html . One of the things I've been seeing frequently is requests to alexa top million sites (e.g. yandex, ...
4
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4answers
603 views

Server situated on two physical networks - Bad idea or not

The run down: Windows Server A (from here on referred to as 'the server') exists on the corporate network (ref as Corporate). A separate physical network exists for the Telecommunications Department ...
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1answer
42 views

What are lawful network interception tools? [closed]

I am looking for network interception tools, which involves sniffing external networks... this is regards to a forensic project.. Any help would be appreciated!
1
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1answer
83 views

Worst-case scenario OPEN URL REDIRECTION and why google not covering it in bug bounty

OPEN URL REDIRECTION as per in my opinion can be proved very dangerous by crafting attacks such as phishing. But it seems like google thinks it as a very low level bug and does not provide any ...
2
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0answers
34 views

Removing malware which is creating temp file and modifying network traffic [duplicate]

I am on OSX 10.9.2, please note I have included several URLs in my post, this is not spam this is due to the nature of the malware. I have just discovered I have malware on my computer after noticing ...
2
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1answer
48 views

Should reverse connections be used to bypass NATs?

I'm planning on doing a demonstration on how remote administrative tools work for my schools computer security club. I plan on writing a RAT in C++ and demonstrating/explaining how it works. I ran ...
3
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1answer
142 views

Closely spaced failed logins in auth.log

I have a raspberry-pi (running GNU/Linux) and I recently allowed my router to forward port 22 (ssh) to the raspberry-pi so that I could log in while away from home. I then noticed a bunch of ...
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1answer
131 views

Download Torrents on University network without detection [closed]

I am wanting to download some things using Bittorrent, but I have heard that they can detect when someone is downloading torrents. How can they detect this? And are there any precautions I can do to ...
1
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1answer
113 views

Extremely suspicious UDP network traffic when idle [closed]

My computer has been using about 7Mbps when idle, it does the same thing even I am playing games and such. This is the Wireshark capture ...
0
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1answer
65 views

Creating a secure home network - Which firm ware should I use and how should I configure my firewall?

I am starting to take on more and more enterprise clients while working remotely from my home office. I have a pretty secure network at the moment, but I have a lot hardware that I am not using and ...
6
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4answers
125 views

Does a separate internet connection increase security for remote users?

Our network admin has requested that a single remote employee purchase a separate modem in their house for "work" traffic. I question if this is a legitimate security practice of any kind especially ...
27
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3answers
3k views

Does Skype technology tap a user's machine to route other calls? [closed]

I was surfing a random blog today (Enterprise video conferencing solutions vs Skype), and I came across a claim. I do know that the Skype protocol is a proprietary one, but the author of this blog ...
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0answers
19 views

Is there any way possible that a Digital certificate is issued by admin on wireless channel?

I want that an admin who is working in a wireless environment have to issue digital certificate to the node, who wants to register itself with the network. this certificate will be used by user to ...
0
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3answers
183 views

How a trojan allows attacker to connect to remote computer behind a router

According to this article on Wikipedia, a trojan horse can allow a remote connection by opening a random port if it is able to bypass the firewall. I'm not much of an expert of routers and Network ...
0
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2answers
114 views

How do I know that my connection is really encrypted?

I am using a VPN to ensure to encrypt my browsing. I wonder though if I could check somehow if the datastream really is encrypted?
1
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1answer
83 views

What network protocol is Crashplan using?

I have been using CrashPlan for a while internally (i.e. local backup server). I would also like to setup off-site backup but my experience is that I have to forward a port from the router sitting at ...
2
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1answer
56 views

How do you back up cardholder data remotely without a network connection?

In the PCI DSS version 3 it says: 1.3.3 Do not allow any direct connections inbound or outbound for traffic between the Internet and the cardholder data environment. But in the event of hard ...
0
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3answers
285 views

How to search for evidence of Camfecting (webcam hacking)?

I'm worried about camfecting (webcam hacking). The camera light on my mac (running OSX) is not on, but it isn't hard wired so that doesn't say a lot. I've ran a virus scan but no signs. Now my idea ...
2
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3answers
150 views

Are scanners secure?

I have a dead tree document. In order to reduce the risk of being compromised, I would like to digitize and encrypt the document, and then destroy the physical copy. Let's assume my computer itself ...
1
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2answers
181 views

What reliable methods are available for tracing the source of an ARP poisoning attack?

If an attacker on the network attempts to use ARP poisoning (spoofing) in order to redirect traffic to his own machine, what mechanisms and techniques are available for tracking the spoofed ARP ...
0
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1answer
123 views

Installed some software over a public insecure wireless network — should I consider myself compromised?

A couple months earlier, I made the mistake of downloading some software over an insecure wireless network and running it without checking its integrity. I am now considering reinstalling my system, ...
2
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3answers
68 views

Will a switch only send data to its recipient?

I have an ISP supplied cable modem/router over which I have almost no control. They can upgrade the firmware remotely, so I assume they can do virtually anything with it. When I transfer data using ...
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2answers
152 views

Which encryption technique should be used for cloud computing data transfer?

I want to setup my application for cloud computing for Software as a Service. There is going to be a lot of data transfer between my server and client, to and fro. The technique I have envisaged is: ...
1
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1answer
85 views

Shared Key vs Pre-Shared Key

Does Shared key and Pre-shared key mean different thing ? Currently reading Text , Security+ Guide to Network Security Fundamentals.