Network Security - securing network infrastructure and connections

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2
votes
1answer
170 views

How can I trace a user on my network?

I want to trace a user based on IP Address (or MAC Address) on a Network with about 10 L2 or L3 Switches. Is it possible to know that on exactly which switch and on which port a user with a specific ...
21
votes
3answers
8k views

What benefits does Nessus have over OpenVAS?

Nessus and OpenVAS appear to have fairly similar features. Why would you choose one over the other, besides the benefit of commercial support (which isn't available for Nessus Home Feed users ...
1
vote
1answer
151 views

How do you stop a hacker with no IP and a dot for their HOST

The entry below is from the visitors log in c-panel Host: . /specific legimate-wordpress-post/ Http Code: 503 Date: Jul 24 09:28:06 Http Version: HTTP/1.1 Size in Bytes: 1118 Referer: ...
4
votes
2answers
609 views

3G Femtocell at home: can anybody connect, and is all traffic encrypted?

At our office we have bad reception for 3G. We bought a Femtocell device that provides a 3G connection for one specific mobile provider. This device is connected to our network via ethernet. I cannot ...
0
votes
1answer
124 views

what type of attack does LOIC do? [closed]

I have used LOIC (Low Orbit Ion Cannon) earlier . Today i was reading on wikipedia that there are many types of dos attacks , namely SYN attacks , HTTP flooding ,UDP flooding ,etc and two questions ...
5
votes
3answers
247 views

Is it a bad idea to share the ssh host key in a diskless environment?

I am looking at this cluster of student work stations. They are diskless clients which boot from NFS. They also have sshd enabled. All of these machines share the same ssh host key (rsa,dsa,etc), ...
1
vote
1answer
119 views

How common are mitm attacks behind an ISP?

Yes. Of course using https everywhere is best. But sometimes that's not an option. In those cases, I'd like to make an informed decision. Is there any information about their prevalence? Or would that ...
2
votes
2answers
111 views

Get the browser history without using a browser

I would like to get the browsing history of a computer in my network (without running that web browser), is it possible?
5
votes
3answers
4k views

Resolving an IP address of a Remote machine to its MAC address

I wanted to know whether its possible to get the MAC address of remote node (computer/Access Point) if I know its IP address. I have heard that if someone sends you an email (even through gmail), you ...
0
votes
1answer
74 views

Pivoting without meterpreter [closed]

Is there any way other than Meterpreter to pivot into the network? If yes, then please guide. I already know about Meterpreter, just want to know manual methods other than this.
0
votes
1answer
128 views

Router level filtering on home network [closed]

I want to block some part of a website or some videos from dailymotion or other site video sites. Type of network I have 7-8 devices(PCs, Mobiles, iPhones & tablets) all connected to a router ...
4
votes
1answer
252 views

HeartBleed and Closed Source Hardware like Cisco

With the release of heartbleed how does one protect themselves with closed source networking hardware like cisco? Especially hardware with VPN variety. Would it be best to replaced such systems with ...
-2
votes
1answer
559 views

good books for learning network and web security? [closed]

I am reading "Hacking The Art of Exploitation" book . i have read till chapter 2 programming but most of it has gone above my head . I want to learn basically cryptography , network security and web ...
3
votes
1answer
6k views

House owner can see who's connected to WiFi; what more can he see?

I live in a rental house, and use the house-owner's wireless network to connect to the internet. The owner can see who is connected to his wireless network and I had a few questions regarding this ...
7
votes
2answers
236 views

How serious is a local virus in terms of network security

My colleague got a notification on his machine of a possible virus (through the virus scanner that is installed by default on all machines). He called up the tech department, and they simply told him ...
1
vote
1answer
72 views

What is the point of hosting database externally?

Following the breach of avast:forum.avast.com they decided to host the database externally@id.avast.com. My question is, what is the point of hosting the database externally since when you get remote ...
0
votes
2answers
306 views

What service could penetrate my Firewall via UDP on Port 17275?

Has anyone monitored various requests from all over the world on Port 17275 via UDP? My firewall logs show huge amounts of such requests from lots of different IP Adresses. I can't find any ...
2
votes
2answers
135 views

How to build a secure affiliate network

I'm going to build a demo affiliate network, which needs to be secured. Let say I have a web application called Affiliate Network Manager that manages all affiliates associated with my online book ...
0
votes
1answer
231 views

Should remote access (RDP/SSH) only be allowed for VPN clients? Or should RDP and SSH be opened the public?

I am about to push hard against the powers that be and strongly recommend that we shift our many (20+) consultants from direct public access to RDP & SSH to VPN clients (connecting to a ...
0
votes
1answer
95 views

Implementing MITM attack on MAN or WAN

Is it possible to implement MITM attack on larger networks than LAN? For example is is possible to implement such an attack on the whole network of an ISP?
3
votes
4answers
6k views

How to monitor my home network traffic?

I have an ATT U-Verse Wireless router supplying 5 computers throughout my home. It is hardwired to my main computer. I have three children of all ages, one of which has had a tendency to make poor ...
1
vote
1answer
154 views

Is a firewall an access control list?

I want to know if a firewall is considered an access control list (ACL). I know there are other types of ACLs, but am specifically interested in knowing if a firewall is an ACL. Edit: It appears ...
0
votes
1answer
147 views

Firewall hole punching [closed]

I'm interested in doing my thesis on Firewall hole punching. Hole Punching: A way to exploit NAT to open a connection TCP or UDP between a Client and a Server. What I'm looking for is a reason this ...
-1
votes
3answers
482 views

How to Block a url not a website [closed]

I want to block a single url. I am using OpenDNS now and it is working fine with website blocking on my network but the problem is that i want to block a url like ...
1
vote
4answers
146 views

untangle server at work place privacy

When I am browsing in an environment where Untangle server is installed, can the network admin track everything I do? for example: Skype chat messages Personal emails (Gmail, Yahoo)
0
votes
1answer
73 views

What does this Snort rule do? [closed]

Rule-4: alert udp $EXTERNAL_NET any -> $HOME_NET 3333 (msg:"ET EXPLOIT Wireshark ENTTEC DMX Data Processing Code Execution Attempt 1"; content:"|45 53 44 44|"; depth:4; content:"|04|"; ...
1
vote
2answers
177 views

Hundreds of legitimate IPs are hitting my website like bots [closed]

I'm having a huge problem with my website due to a weird spike on hits. Today, i'm getting several hundred hits. Normally, i get a lot less, and they are from me country. Today's hits are from every ...
3
votes
1answer
87k views

Hack into a computer through MAC and IP address [closed]

Can I hack into someone's computer if I know the MAC address of his modem and his public IP address? Is this possible? What kind of stuff would I be able to access?
0
votes
2answers
451 views

Could a router protect our network or need we use an hardware firewall?

I am at a small firm (12 PC on the internal network). We use this network architecture now: Internet(Modem) --> Router --> Firewall --> Switch -- > Internal Network (clients PCs) ...
0
votes
3answers
51 views

Custom surveillance protection [closed]

I want to make a secure network because of government surveillance. Is there a way I can configure or build some type of custom hardware to be able to detect and to access the network, but only ...
-3
votes
2answers
55 views

Network camoflage-techniques of hiding networks [closed]

How are top secret networks hidden? What are the techniques to make a network hidden from the public?
31
votes
7answers
22k views

Why do people tell me not to use VLANs for security?

I have a network, where a have a couple of VLANS. There is a firewall between the 2 VLANs. I am using HP Procurve switches and have made sure that switch-to-switch links accept tagged frames only and ...
5
votes
2answers
14k views

What advantages and disadvantages do Palo Alto firewalls have, compared to others in the market

I am about to start an evaluation process for firewalls. I have experience with Checkpoint and Juniper, but I don't have any information on Palo Alto networks, other than their marketing stuff. So I ...
3
votes
2answers
402 views

How can I get a fiddler-style trace of an iPhone / Android?

I want to audit the HTTP and HTTPS activity of apps downloaded onto my mobile device. What is the best way to do this? I own the device, can add a root certificate, and can connect the running ...
2
votes
1answer
403 views

How can I secure IP Multicast traffic?

I'm interested in securing IP Multicast traffic for content that will be sent globally with several low bandwidth receivers. I understand that simplified Broadcast encryption takes N public keys ...
3
votes
2answers
93 views

Public facing computers in a Media Lab

I've just taken over administering a lab of Apple computers on a university campus. We have about 15 computers and I've discovered that they all have public IPs and domain names. Even our printer is ...
0
votes
2answers
400 views

how can I stop someone from watching my internet history? [duplicate]

I use someone's wifi network. Is there anyway to stop him by getting my browsing information or can I somehow hide my browsing history from him?
0
votes
1answer
192 views

How secure is split tunneling on a VPN?

What protocols get encrypted and go through the VPN? Is it just port 80 and DNS traffic that does not go through the VPN? Does this impose any security risks by running a split tunnel? Making the ...
2
votes
1answer
253 views

what can hackers do with a hacked router?

In Malaysia, our service providers are giving us a router with remote-admin available. It has come to my attention that with a simple line I'm able to find out the routers username and password. I'm ...
9
votes
1answer
2k views

Best way to report a foreigner attacker's ip to authorities?

I have been under attack last week and I was able to trace down the attacker and get his IP address. The attacker was located in Germany but I live out of Europe? From your experience what is the ...
1
vote
1answer
5k views

Router detecting port scan and ack flood attack

Over the past few days, I'm noticing that the log of my wireless router is showing an ACK flood attack from various IP addresses. I use a D-Link DIR-600L. I've searched through the internet, also ...
3
votes
3answers
143 views

When downloading from an https web page - will the download also use ssl?

If I click on a download link on a page that uses ssl, will the download also use ssl? If the answer is not (or: sometimes yes, sometimes not) - is there any way I can force it to be protected? I'm ...
2
votes
3answers
2k views

How to block the websites on client machines

In our office we are blocking sites like Facebook, Twitter etc.The problem is that some of the users bypass our proxy and firewalls through external proxy sites like www.youhide.com or ...
0
votes
1answer
112 views

Choosing the Path in IT Security [closed]

I graduated last year from an Informatics and Security degree program. This program was taken in a Canadian college. It equipped me with the basic security knowledge in all fields; networks, systems ...
4
votes
2answers
5k views

Recommended Cipher Suites for TLS 1.0, 1.1 and 1.2

There are a lot of cipher suites defined in the in the specifications itself of TLS 1.0, 1.1 and 1.2. And furthermore, there exist RFCs which add even more cipher suites to a specific version (e.g. ...
1
vote
4answers
374 views

How do exploits and payloads work together?

I knew about the metasploit framework since a few good years ago, but I never really got into it. I have some knowledge when it comes to networks, but I am not a PRO. I've tested some things with ...
1
vote
0answers
141 views

Security risk of connecting one mobile device to another mobile device's hotspot

Is there any risk when connecting an Android Phone to a [Verizon] iPhone's Hotspot? If there are I'd like to know about solutions. The Android Phone will basically be tapping the data plan of the ...
83
votes
8answers
7k views

How can I protect my internet-connected devices from discovery by Shodan?

There's been a lot of buzz around this recent CNN article about Shodan, a search engine that can find and allow access to unsecured internet-connected devices. Shodan runs 24/7 and collects ...
2
votes
1answer
152 views

What features boost security for a home edge router?

I want to hide my home network behind a router and not worry about firewalls on internet-facing devices. Furthermore, one PC is going to be hosting some services, so I guess I need port forwarding as ...
0
votes
0answers
38 views

How can I get a list of unsigned plugins in openvas?

How can I get a list of unsigned plugins in openvas? Are those plugins safe for use? When I run the scan on a test machine with nasl_no_signature_check = no, I don't get any results(not even any ...