Network Security - securing network infrastructure and connections

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11
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1answer
995 views

How can I detect real location of the user through their IP address?

There were many ways to detect the user's IP, for instance we could get it through a single click link or through any other medium of communication where we could get the user's IP. But the tedious ...
4
votes
1answer
58 views

Which protocols employ cover traffic

Do the protocols employed by wpa 2 and vpns use "cover traffic". A constant busy signal that would not allow for meta data analysis. If not is there a service that does this for you.
0
votes
2answers
169 views

Is hack.chat safe from packet sniffing?

So I recently found this tool called hack.chat. It's a disposable, browser-based IM system. If I were to use this at a friends house, public network, or at work, it is possible for someone on the ...
3
votes
2answers
138 views

Intercepted encrypted traffic

If your internet connection is encrypted, will snoopers still be able to tell when you are active; for example, clicking a link as opposed to merely reading a webpage. Will a snopper be able to see ...
2
votes
0answers
87 views

Linux machine continuously transferring data over the network to random servers in china and across the globe [duplicate]

I have been using Linux for about 5 years now but I am not very skilled with the commands to monitor and figure out internal issues. I recently was having trouble with the Internet. My roommates were ...
2
votes
2answers
101 views

Locate server by latency it has to other servers

I just thought about how one can locate a server he has administrative privileges on. My "best" idea till now is to ping a huge amount of servers and then measure the latency of the host to these ...
3
votes
3answers
115 views

Detect trojan/keylogger/virus on a businees network

On a business computer network with around 50 computers, there is a computer infected. We need to find that and remove it. I have been running the software below in the suspicious computers, but ...
1
vote
2answers
375 views

Should i use peer block to better secure my computer?

Should i be using peer block to secure my computer or is there a better way to accomplish the same task? I dont file share, my curiosity of peer block came from my research of security of my ...
1
vote
0answers
40 views

What kinds of features are useful for network security visualization? [closed]

I just want to know is network security visualization are practical for enterprise network administrators? (Which I am not) And if it is what kind of tools they uses and what kind of features they are ...
6
votes
2answers
387 views

Can network admin detect port scan on a certain host?

Say, my laptop is connected to a large WiFi network with many other users. If a port scan is run on my IP by somebody else on the same WiFi network, is it possible for the network admin (or anybody) ...
5
votes
0answers
303 views

Ethical Hacking Certification (CEH v9) From A Web Developer's Perspective [closed]

I just finished a week of training for the CEH v9 certification. I have two questions: What are some strategies I can take for studying for the CEH v9 certification coming at the test as a web ...
8
votes
2answers
489 views

How to secure a modem/ wifi router without login?

A friend of mine has a DSL-modem/wifi-router from his ISP. The configuration page of the modem requires no login and no login can be set. It is said that there also exists a superuser but this is only ...
1
vote
1answer
139 views

Must an attacker using a Smurf attack be on the same network as the victim?

I'm learning about Smurf Attacks. Since they need to use a broadcast address, doesn't that mean they can't work over the internet? For example if an attacker sends a router the packet with the ...
1
vote
1answer
40 views

How do these techniques work for protecting against SYN flood?

I'm reading about how SYN flood can be prevented. Wikipedia has Filtering Increasing Backlog Reducing SYN-RECEIVED Timer Recycling the Oldest Half-Open TCP SYN Cache SYN cookies Hybrid Approaches ...
1
vote
1answer
70 views

Shared Global Blacklist Trust Issue

Some vendors like Palo Alto Networks make appliances that will sync blacklists across all of their client base when one of their clients gets attacked. So after the first guy gets attacked, all of the ...
4
votes
2answers
166 views

Network UTM firewalls, are they really worth it?

I am currently looking at boosting the network security in my organization. (Currently we just use really basic small business network firewalls we primarily bought for IPSec VPNs). However, from ...
3
votes
3answers
559 views

Can one Bypass a Web Proxy by using the Host File?

a website aaa.com has a Static Public IP address x.x.x.x . Client B resides in a network and it accesses the internet through a web proxy C. How the web requests are routed from B to the proxy is ...
42
votes
3answers
4k views

Is it common practice for companies to MITM HTTPS traffic?

My company has just introduced a new VPN policy whereby once connected all traffic is routed the company network. This is to allow for improved monitoring of data theft. It would appear that this ...
4
votes
2answers
129 views

Can single-purpose PCs be useful as a security measure in this situation?

In the context of a small scale operation, we are considering use of single special purpose PCs allocated to single security-sensitive tasks - for example, certain financial operations. The intended ...
3
votes
1answer
75 views

How to make Snort not log sensitive data from the sniffed traffic?

I have Snort in my network which I use for IDS and it is residing on a VM that receives all mirrored traffic from the switch. I am having a web applications that users use and they login, operate on ...
2
votes
2answers
134 views

4 Hackers on my network! [closed]

Called microsoft hotline because my ASUS laptop got an unknown virus. It would not allow me to access network until i call. The agent i talked to assisted me through the phone. He was able to control ...
0
votes
3answers
305 views

What information can my network admin see when I visit a website? [duplicate]

This question is similar to this but for my network admin. For example, when I enter this URL: https://www.google.com/search?q=example or ... I can see the word example that I was searching on ...
1
vote
3answers
176 views

Can bad guys record phone conversations without the carrier's knowledge?

I know that, in most of the world, phone conversations are transmitted as digital data (whether frames in circuit switched protocols or packets). I know that several companies offer products which ...
0
votes
1answer
69 views

Network security question (NLB and 2-way TLS) [duplicate]

I have a situation that can be better illustrated in the network diagram below. My scenario: Client Web Server (external party) is using TLS 1.2. In my network, My Web Server is fronted by a NLB (...
1
vote
1answer
47 views

Between point to point connectivity and remote network access, which is riskier?

Between point to point connectivity and remote network access, which is riskier? If I have a third party accessing my company's network, which are the different modes through which they can access and ...
2
votes
0answers
54 views

Determining time it would take to exhaust IVs on 802.11b/g/n

I'm trying to learn about WEP attacks at the moment. I know that attacks against WEP require collisions of the initialization vectors. Is there a way to determine how long it would take for the ...
0
votes
0answers
1k views

BRCM-LVG in home network

Shortly after the local cable provider upgraded our cable modem an item named BRCM-LVG appeared in the list of devices (two computers) connected to our Windows 7 homegroup. It contains a folder named ...
-1
votes
2answers
195 views

How to limit source port for accessing blocked website?

My country has a firewall which blocks sites like Facebook, whatsApp etc. However, they use some kind of port blocking, so some important websites for me like Chegg is also getting blocked I think due ...
0
votes
0answers
81 views

Is EasyIDS obsolete?

I have found EasyIDS from Skynet Development recently but noticed that the latest change-log is from 2009. Does this mean it is obsolete and should not be used as it is not being kept up-to date?
0
votes
0answers
48 views

Secured router bridged with a less secure router

I have a router provided by my ISP physically connected to the internet access point. It has basic security (WPA2-PSK) and broadcasts its SSID. I have a second router bridged wirelessly to the first ...
3
votes
4answers
264 views

How Likely Is It For A Virus To Spread From A Linux VM To The Windows Host

I'm currently running Windows 10, and I plan to use a Linux distro to run in a VM (Virtual Box). I know Linux is one of the most secure operating systems there is and I'm curious as to how likely it ...
0
votes
3answers
42 views

enforce some peers to use IPsec and allow others to bypass it when reaching the same server

Lets assume I have a server that owns UDP socket. And then, for some clients, this server would expect to receive this UDP traffic encapsulated over IPsec. While for some others clients (the default), ...
-5
votes
2answers
183 views

If someone hacks my wifi connection what if any control do they have over radio waves in my house? [closed]

A couple questions on wifi security. If someone knows my wifi password (be it WEP or WPA) what kind of control do they have over radio waves? Can they emit radio waves from computers on my network? ...
0
votes
1answer
1k views

On the ability to reverse engineer the Instagram Private API

I came across these blog posts where a man was able to extract the Instagram private signature key from the Android app: http://mokhdzanifaeq.github.io/extracting-instagram-signature-key/ Which could ...
40
votes
5answers
7k views

Is this an evidence of a Skype communication being spied on?

A couple of days ago I was having a conversation using Skype, then I wanted to share a link to a page with the interlocutor. I didn't want to let her understand the link content by just looking at the ...
2
votes
2answers
180 views

Why is it dangerous for a company to allow employees to connect their own devices to the internet?

I've heard complaints about allowing employees, clients, etc. to bring their own device and connect it to the network. What exactly is the complaint and how can it be a threat? If no network resources ...
1
vote
1answer
87 views

Scapy WPA2 packet forging

Can I use scapy to forge custom packets on WPA2 network? Can I even pack the IEEE 802.11 headers?
1
vote
2answers
65 views

How do personal/private cloud products work?

On amazon.com I found some personal cloud NAS products and was wondering how some of them work. In this article the author discusses the My Cloud app and how it can be used from any internet ...
0
votes
4answers
688 views

How can I use netcat like ping?

How can we use the netcat (nc) to determine whether a particular machine is running web, mail or SSH services?
3
votes
1answer
54 views

Firewall - Allow WMI internal network

I am not totally sure if this is the correct stackexchange to place this question, so just let me know if it should be somewhere else. I am looking into IT asset management systems and for these ...
0
votes
2answers
97 views

Public key - private key question

I have a query about public/private key encryption that I hope someone can answer. So as I understand it: Client connects to server and server responds with certificate Client pulls the public key ...
3
votes
2answers
39 views

Are there enforcements on host configurations to protect other computers?

I was reading the Wikipedia article on Smurf attack. As far as I understand, the only protection from a smurf attack is to rely on other people to configure their hosts in a way that these hosts won't ...
1
vote
2answers
335 views

Spoofing TCP/IP stack OS Fingerprinting attacks in OSX

We need to change our OSX fingerprint in order to impersonate the Android OS against "passive OS fingerprinting" attacks. For Windows machines there are tools/guides for doing that, but can't find ...
2
votes
3answers
125 views

Linux File Security when connected to internet [closed]

Let me first admit that I am a nobody in computer security - I just know the various threats generally known to public. I have a Linux Cent OS 7 installed on my computer which is connected to the ...
0
votes
3answers
163 views

If I connect to a website using a cellular network, and change the sim card and connect again with the same phone, will they find its the same phone?

I read on a blog that when you connect to a website with your phone they track the model number id of the device, or something like it. I don't remember what its called. Even if you change your sim ...
2
votes
2answers
235 views

Spoof another IP address in the same network,will the spoofing source get the response?

I have read some articles about IP spoofing. Briefly speaking, IP-spoofing means the attacker uses a fake IP address in the IP header, to pretend this IP packet is sent by another machine. The ...
2
votes
1answer
95 views

Hiding packets, requests, traffic from my PC through Ethernet connected to workplace network

Before everyone jumps on the bandwagon, as I so often see, of saying you shouldn't do anything on a workplace network that is to be done annonymously on your own home network, I want to know an actual ...
4
votes
1answer
118 views

How often should I check for unknown open ports

I wan to run a cron job on each of my hosts that sends a list of all open ports to a central db on which I will run auditing and forensic queries. My question is how often should this job run so I ...
1
vote
3answers
205 views

Can man-in-the-middle attacks affect anyone not connected to the attackers network?

I'm trying to understand what these attacks are restricted to. I'm aware that man-in-the-middle attacks can be done if the attacker is on the same network (using something like Wire Shark), but is it ...
5
votes
1answer
279 views

Government/ISP tracking of internet activity trivial to evade?

The recently announced Investigatory Powers Bill in the United Kingdom will mean that ISPs must store the internet activity of everyone for one year. Anyone who wishes to evade such tracking can use ...