Questions tagged [ip]

The Internet Protocol (IP) is the main protocol for sending packets accross the internet. It belongs to the internet layer in the internet protocol suite with the variants IPv4 and IPv6.

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60 views

Are IPv4 more intuitively hard to track than IPv6?

I understand that it is easier for a human to intuitively figure out the alleged whereabouts of a machine if that machin's IP address is IPv6, rather than if its IPv4: For example, since I configured ...
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Can someone steal my IP address and use it as their own?

I am not talking about home networks (like hacking my wifi and using it). Can someone from another geographical location steal my IP address in some way? For example: i am angry with you- > i want ...
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Why since I configured my smartphone APN protocol to IPv4/IPv6 I (might) only have IPv6 addresses? [migrated]

About a week ago I configured my smartphone Access Point Name (APN) of the type APN protocol from including the value IPv4 to including the value IPv4/IPv6, all IP addresses I recognized for my ...
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Is a browser session encrypted using https with just the IP? [duplicate]

Accessing a webservice/website via IP with https eg. https://x.x.x.x/ the browser shows that the connection is not secure. Is the connection actually secure/encrypted or not (more secure than ...
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1answer
66 views

SSL certificate with IP

I have an embedded device and it is running a https server. This device will be accessed from a standard web browser using the IP address. I am generating a TLS certificate. I have added a commonName (...
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Is there something like DynDNS for a DNS service?

I run a small DNS server (pihole) at home behind a firewall, with some custom filtering. It mainly filters ads and trackers, plus some top level domains I want to avoid navigating to. I have an IPv4 ...
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1answer
150 views

How likely it is that a hacker spoofed my own IP address when trying to log in to a website?

I got a confirmation code without trying to log in which is what prompted me to investigate this. The account is just a Ubisoft account with 1 free game on it; I somehow doubt there would be ...
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IP traffic use cases, which could be broken by egress filtering

Egress filtering (blocking potentially spoofed IP packets with source IP outside the sub-network) is breaking multihoming. However, what are other "normal", residential IP connection use cases which ...
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181 views

Thought process behind firewall design

I'm preparing for an introductory information security examination in university and this is one of the tutorial questions on Firewall design. My concerns for the provided solution is how to define ...
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65 views

Bought used IP security camera, should I reflash the firmware?

I bought an used IP security camera on eBay, I dont know who was the previous owner. I've always thought that we can't trust 100% any firmwares/OSes that were been installed or used by someone else. ...
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1answer
100 views

Would my IP be recorded when I visit a website

Could the website owner (admin) determine whether to record users IP? If the website owner (admin) doesn’t want to record users IP, will the host provider or domain name provider still get and record ...
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Gradle daemon listens on all interfaces by default

Was messing around with a project today that uses the build tool Gradle and I noticed that by default, it's running a daemon server process that listens on all interfaces. Output of ss below. State ...
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Is Slowloris traceable? [closed]

When someone launches a slowloris attack on a website, could that attack be traced via IP? Could someone feasibly locate the IP of the person that launches said attack?
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Effective ways to hide your IP address and Device Information from apps on Mobile? [closed]

How can you make sure site admins are not able to get information like your IP, Browser, Device, etc?
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1answer
66 views

Know location and IP address [closed]

Today someone tried to access my LinkedIn account. When I logged into my LinkedIn account, I received PIN by mail. So how can I know the location and IP address of the hacker?
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1answer
139 views

Will HTTPS expose the IP address of the receiver?

If I send a HTTPS request to a IP address directly will anybody spying on my network be able to see that IP address? For example if someone captures my HTTPS packets will they be able to identify ...
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2answers
299 views

Access to unencrypted WAN traffic

A basic plain-text unencrypted TCP connection is setup as follows: Network Client LAN <----> Network Modem <--> ISP <--> Remote Server The network Modem only has a single wired user, and ...
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1answer
58 views

Universal DNS Resolver [closed]

I would like to implement a DNS client which should be able to resolve any valid domain public, private or otherwise (tor,i2p). What's the best way to achieve this? I know that I need to pick a ...
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1answer
217 views

nmap: Same IP, different domain names, different results?

I'm scanning a network (whose name will not be stated). It has >1 IP addresses. When I tried scanning its subdomains, there are several subdomains that are translated to the same IP address but return ...
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Is public and local IP addresses of computer behind NAT a sensitive information? [duplicate]

So I'm playing with WebRTC and I've found that you can get public IP and local IP of other computer. Here is my code that show IP https://codepen.io/jcubic/pen/yvMeRg?editors=1010 (the code is used ...
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How do I white list domain in ASG's?

I need to whitelist https://hooks.slack.com in Application Security Group (ASGs). As I have understood ASGs are static and they don't resolve DNS. Then how do I whitelist https://hooks.slack.com ...
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4answers
12k views

Is there any actual security benefit to restricting foreign IP addresses?

I am currently outside the US trying to log in to my health care provider's website and the connection just times out. I reached out to them on Twitter and they told me that as a security measure they ...
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1answer
156 views

How do hackers use RATs without their server/IP being revealed?

When hackers put trojan horses on someones PC, those programs (which are, by definition, just stealthy RATs with some... extra features) need to communicate with them somehow. A direct peer-to-peer ...
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4answers
5k views

More than three domains hosted on the same IP address

Not on purpose I did a reverse IP address look up on my site, and it shows that there are three other websites hosted on my server, and now I'm worried. My web is arturofm.com, and here is the lookup:...
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4answers
334 views

How can I avoid getting exposed while travelling to Russia?

UPDATE: There is a similar question, but my question is different because it is very narrow and about a very specific security concern. In short, I used a laptop to make posts on a Russian social ...
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3answers
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Are certificates without DNS fundamentally flawed?

I am new to security work and I am implementing someone else's design. The design calls for a TCP server with TLS in an environment where there is no DNS - only IPs. I am working with a typical ...
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How to get user information from an IP address? [duplicate]

A spammer is harassing my friend and she doesn't know who. With some struggle, I found out the spammer's IP address. But I don't know how to proceed after this. She says she doesn't want to move ...
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1answer
171 views

How can a website know my private IP address? [duplicate]

I recently came across this website called whatsmyrouterip.com. How does this website know both my private and public router IP address?
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1answer
219 views

Malicious IP addresses [closed]

I am looking for updated lists of IP addresses that belong to malware's C&C, botnets, malicious scanners, or other sort of malicious activities. Is there any public database of malicious IP ...
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5answers
12k views

Is it possible to spoof an IP address to an exact number? [closed]

The title says it all really. Say my IP address was 1.2.3.4 and I wanted to change or 'spoof' it so that its exactly 2.3.4.5, would this be possible or are there too many varying factors that need to ...
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4answers
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Is it insecure to publish the private IP addresses of my devices?

I'm interested in both IPv4 and IPv6, but more-so IPv6 because of how unfeasible it is to find valid addresses by just guessing-and-checking. Edit: My concern is that more trust may be given to IPv6, ...
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1answer
97 views

Get client ip address that is not spoofed

I am using the following source code to get a client IP address, Public Shared Function GetIPAddress() As String Dim context As System.Web.HttpContext = System.Web.HttpContext.Current Dim ...
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1answer
103 views

MAC/IP address hiding

I am doing some experiments with wireless protocols on ns-3. What I want to ask is how can I hide MAC address/IP address, because I need it for my experiments? Is it possible to use encryption on ...
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4answers
251 views

How to investigate an IP address that was involved a security breach?

I'm wondering what one can do if they have the IP addresses that were used by the attackers during a security breach? The specific situation is this - recently two of our servers were hacked into ...
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1answer
148 views

Do iPhones send signals with IP address even after it has been turned off?

My phone is gone and unfortunately it was turned off before I lost it. Is it possible for me to track it down with my IP address that I have saved? Because I read some articles that say that your ...
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1answer
67 views

Checking the reverse IP address to find all DNS records

In the context of Vulnerability Assessment, what is the purpose of checking the reverse IP address of an end-point to find all DNS records of ‘A’ type associated with the IP? I've come across this ...
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435 views

Can anyone spy on my traffic if they know my MAC address, local and public IP?

If we are under the same ISP or different ISP? image for more information.
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1answer
397 views

Detect Proxy and Tor exit nodes from an IP in python

I have a database (hadoop) of the users who access my website (their IPs) and i want to check if those users either use proxy networks or the TOR network and block them. I also want to differentiate ...
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102 views

VDSL modem getting probed?

My ZyXEL VMG8924-B30A VDSL modem recently had these alerts in its log. The WAN IP address of the modem is 10.225.205.128. There was nothing like this before 1 May. What is this? 2019 -05 -01 T16:05:...
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2answers
149 views

Why isn't there a defense system against ARP poisoning?

Wireshark can detect these kind of activites, and warn us by a 'duplicated ip address' message. Why doesn't the router act like this? The other way is to check the cache, and don't allow two different ...
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47 views

Finding all random IPs and ranges of Torguard VPN or any VPN service provider

I'm securing our networks and want to be able to whitelist all known Torguard VPN ip addresses for accessing my network. I read that I have to use the dig command, but I only get one result when I do. ...
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3answers
257 views

Torrented files under my IP address

Last year (2018) I was accused of torrenting Files whilst in my residence in Germany. I have never torrented any file ever. One thing that stands out is that during the same day CyberGhost (the VPN [...
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1answer
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Question about hping3, TCP and ngrok

I have set up a experimental setup which consists of: Windows PC with ethernet cable; Arduino shield (connected to Windows machine with USB) with LTE connectivity sending data using TCP/IP to ngrok; ...
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1answer
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Someone said they have my ip and my internal ip. They threaten to post it on the internet. What should I do? [duplicate]

They threatened me with a “I have your up and your internal up. I’m going to send it on the internet unless you do exactly as I say” what should I do? I’m doing what they say but I’m petrified.
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How is Instagram detecting me and blocking me each and every time I try to create a new account through different medium?

I have two Instagram accounts, one is mine (Account A) and the other (Account B) is for random images with my pets and a lot of other stuff. Account B is private and has been from start, recently I ...
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1answer
146 views

What’s the best way to report an IP address from Romania?

I recently received an email from a company sending me a security code that I didn’t ask for. It showed me the IP address that the request came from and it shows that it is in Romania but I live in ...
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4answers
680 views

Router Receiving Unknown Packets from the Same IP and Port Even After Address Rotations - How?

One of our client's routers is receiving packets from the same source IP address and port repeatedly, even when the router is rebooted and obtains a fresh dynamically assigned IP address, and while no ...
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Retrieve hostnames for IP addresses to connect to HTTP services, when no (reverse) DNS PTR records are available?

I'm conducting a penetration test, where I'm facing the following problem: After having retrieved a set of IP addresses through tools like whois, I cannot successfully connect to the HTTP-based ...
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1answer
254 views

mitmf doesn't work when disabled ip forward

I have virtual machine windows connected to NAT network. I also have kali linux virtual machine connected to same NAT network. I have port forwarding disabled. cat /proc/sys/net/ipv4/ip_forward gives ...
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2answers
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Is it impossible for an ISP to block access to a site that has a dynamic IP?

I was reading on how ISPs in many countries block access to many sites. This got me wondering -- How do ISPs block sites in the first place? I found answers here, and reading through, it became ...