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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Is a SSL CA signed certificate necessary when connecting with IP Address?

I'm currently creating a socket server, and would like to encrypt communications. The thing is, the client will connect directly to the ip without any DNS. (Every user will know the Server's IP ...
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1answer
24 views

Would a VPN with changing configs do the same job as different VMs

I was reading this question. So my question: Would using a VPN and swapping out configuration files that change your IP address mask the same as using different VMs?
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Connecting to postgres with SSL

I need help understanding some basics about the postgres database server and SSL. I am developing a Windows desktop application that will connect to a postgres database, in single user mode, with both ...
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64 views

need to know how to get someones ip address with a fake number [closed]

I'm being harassed by a person who is on the Textnow app. I know the phone number they are using, but cops won't do anything unless I find out who it is or give them a address. This person is talking ...
2
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1answer
194 views

“What's my IP” shows a different result when running over https than over http [closed]

We had issues with one internet provider, and switched to another one. However, we received word that the new internet provider is somewhat affiliated with the previous. When running a "what's my ip" ...
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2answers
79 views

How can I block certain IP addresses from my router?

I have done some basic things protect my router like disabling wps setting strong passwords and stuff. However, I am using a virgin media superhub 2 where it does not seem to be possible to ssh into ...
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4answers
4k views

Do I have to hash users' IP addresses when I log them?

I have read a lot of users saying that you have to hash IP addresses - and a lot of others who say I don't have to because it is not private information. I use IP addresses for identifying users, ...
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1answer
93 views

Reporting an IP address

This morning while checking /var/log/secure to troubleshoot an issue with my Centos VPS, I found that there has been too many SSH bruteforce attempts from 54.93.174.60 for the past couple of days. I ...
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3answers
2k views

Is it possible that authorities can't block a certain website

I was watching a very recent TV show, the FBI agent told the police that there is no way for anybody to block a live stream of a pedophile torturing a kid nor to trace it. Even when it's being ...
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4answers
83 views

Masking IP address and port number for Web application [closed]

I have a Web application running on port 89 ( non-standard port) of a Windows 2012 R2 machine. The login page for this application needs to be accessible through a link on my website - let's call it ...
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3answers
918 views

Differences between using Tor browser and VPN

I can't quite figure out the differences between using the Tor browser and using a VPN (like concretely proXPN). From what I understand the idea is the same, that they both hide the IP address. The ...
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42 views

How to restore devices like IP phones to productive use after unexplained activity? [closed]

I'm trying to consider how to properly vet devices that have exhibited unexplained activity for future deployment. Let's just consider my current scenario as an example, but I am interested in this ...
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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 ...
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1answer
83 views

Is it safe to use IP Addresses as an identity?

I have a website where users can generate links. I'd like to limit 10 links to a user, but would also like to avoid requiring a login/email. I was thinking about using the IP Address as an identity ...
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2answers
71 views

Impossible to make connections through closed ports?

If you have closed all your ports on your internet protocol, you cannot make a connection to that internet protocol. So how do attackers (DoS or any other means that need a connection) make a ...
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2answers
167 views

Is “HTTPS” ~100% secure? [duplicate]

Before I login to a trusted website, I always check that the address bar has a green padlock and the URL has no typos. E.g: After I've seen the green padlock and checked the domain ...
2
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2answers
154 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 ...
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2answers
136 views

Is it safe to point a (sub)domain to my home IP address?

I have my own website and I created a subdomain that points to my home IP address. It is useful for personal things like entering my domain for wake-on-lan and letting my friends enter it to join ...
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The simplest way to emulate TCP-IP protocol violation / anomaly attacks

Reading up upon security on web applications I did not found that much info on TCP-IP and in particular HTTP/UDP protocol violation / anomaly attacks. My question: What is the general mechanism of ...
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3answers
141 views

Phone location detection

If someone posts something on the internet using their phone's data connection, is it possible to track their location? For example, somehow link their IP address and figure out their location. Or ...
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2answers
176 views

How to mask my IP using a proxy server? [duplicate]

I heard that it is possible to use a proxy server to mask my true IP address and surf anonymously online. Also I have a list of valid Proxy IPs and corresponding ports. How can I use them to get ...
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6answers
5k views

My IP address (with a NAS) is targeted by a hacker. What to do? Should I be worried?

I've noticed, based on the logging of my NAS, that my IP address is targeted by a hacker. I already took action by automaticly ban the IP address permanently after five unsuccesful login attemps. ...
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2answers
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Is it possible to retrieve MAC address of a host using Tor?

I know that Tor is used for anonymity while browsing in the Internet. I heard that by using Tor, it is possible to hide my IP. But is it possible to hide my MAC address also?
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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 ...
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1answer
172 views

How the whatismyip knows real ip address?

I just realize that this website knows the real ip address even if you use proxy ,i found this question, so start to test every possible way,first, this website don't have a X-Forwarded-For or ...
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IP address question [closed]

I traced a header on an email I received, the person claims to have sent it from Maryland, but I traced the IP and it shows shows San Jose, CA and also contains loop backs, ??? Is this possible?
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What happens when a spoofed source IP packet is dispatched out of a private network with NATing

Suppose as an attacker i want to carry out a Ping or SYN Flood attack.. I can change the source IP of the packets generated at my machine to a false/spoofed public IP address so that replies go to ...
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Location Obfusication and Email/remote login

Would it be possible for a user of a 3rd party VNC software package and email client to obfusicate/spoof their location, so that an employer would be unable to determine the location from which the ...
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Getting a log of computers that have remotely accessed a Windows server

I have suspicions that someone other than people on my team have obtained the credentials to remotely access a Windows 2008 Server. I need to get some evidence before I start pointing fingers or get ...
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2answers
7k views

How to get MAC address via IP [closed]

I have an IP address of a computer which I am currently away from, and I need the MAC address. How do I get the MAC address if I ony have the IP?
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77 views

What Does Putting Each Subscriber of ISP in One Subnet of His Own Mean?

I've noticed that I used to be assigned an external IPv4 from my ISP and a 24 bit mask (255.255.255.0), then it changed to 255.255.255.255, today I was studying IPv4 subnetting and I understand that ...
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94 views

Broadband security question

I have a fixed line broadband connection at home. This morning when I tried accessing Google or Facebook through my browser (Google Chrome) I got a webpage asking me to update my flash player. I found ...
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242 views

Tracking IP address to prevent abuse without logging user metadata

I am trying to balance good security practices against excessive logging of user metadata / Personally Identifiable Information. I am constructing a web app that tracks IP addresses to prevent abuse, ...
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What are the benefits of IP Whitelisting? [closed]

While IP Whitelisting can be usefull in certain circumstances, it can also be a great annoyance that kind of secures through obscurity. It doesn't really restrict unauthorized requests as IP spoofing ...
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What are these netstat entries?

UNKNOWN:7676 TIME_WAIT There were about 7/8 of these, listed as active connections on tcp. Another was 107.170.31.200:http TIME_WAIT 3 of these, as active connections on tcp. Then: ...
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355 views

Hiding and faking my location?

I read this: Reveal the True IP of a User I am using Hola Unblocker to hide my IP address. This appears to work when I go to netflix as the site treats me as a US resident (which I am not). This ...
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2answers
334 views

How are logs stored with ISP?

When dynamic IP addresses are assigned to users how do they store the logs? Do they just store the time and address of the websites visited or do they store the whole URL like we see in our browsers, ...
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Is it possible to covertly tunnel data using L3DSR? (or any other TCP or IP layer hack)

I asked this question on ServerFault regarding how a Netscaler embeds low level data in a TCP packet, round-trips it, and then uses that data to loadbalance the user. Similar to DNS Tunneling, I ...
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2answers
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Can someone know my IP address through Thunderbird email attachments?

Can someone know my IP address through Thunderbird email attachments? Can a cunning attacker manage to find my IP address through attachment 'images' in emails that I unsuspectingly open?
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3answers
321 views

Ip tracking of stolen laptop

Somebody stole my laptop. I made a connection to it while he had Teamviewer still running. The police says that they can't start tracing the laptop because the IP is abroad. But what doesn't make ...
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What are shodan's IP addresses? [duplicate]

I'm attempted to eliminate a lot of the malicious traffic on my webserver as possible. In doing so I have performed a few tests and found that when my server is not listed on shodan there are no port ...
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How do you stop a hacker when their IP address is 0.0.0.0?

Wordfence reports the following visitor: An unknown location at IP 0.0.0.0 visited 4 hours 45 mins ago IP: 0.0.0.0 Browser: Baiduspider version 2.0 Mozilla/5.0 (compatible; Baiduspider/2.0; ...
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1answer
277 views

Multiple people have the same iPhone IP address

I am an admin of an immigration forum. Security is my job One and protecting our members's info is my highest priority. Recently, I discover that there are 3 members who have posted from the same IP ...
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2answers
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Is it good practice to ban an IP address if too many login attempts are made from it?

Since an IP address does not necessarily represent a specific device, but probably a whole network/company/etc. does it at all make sense to block an IP address if there is a significant amount of ...
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425 views

Does gmail's TOS allow Google to steal your emailed ideas?

Is it unwise to use gmail to discuss business ideas that Google could snoop on and use to their business advantage? I know that email is not secure and anyone could read it along its path of ...
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1answer
107 views

My Control Panel and online IP addess tools report different results for my IP address [closed]

Control Panel says it's 192.168.1.1; Google, whatismyipaddress.com etc. says it's 75.92.141.32 When I put the IP address reported online in my address bar I get a Nokia login page, but my ISP is ...
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147 views

IMEI or IP being recognised?

Can a website see my IMEI number? I have been banned from a website for multiple accounts, although I always cleared cookies, disconnected and reconnected from "the cloud" which gives me a different ...
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1answer
187 views

What's gonna happen when all IPv4 changes to IPv6? [closed]

I was guessing what could happen when all IPv4 be changed to IPv6 , like pen-testing tools and network configuration for common users. Will all the IPv4 be automatically translated to a IPv6 new one ...
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1answer
468 views

How to identify hashing algorithm [closed]

I want to identify the hash algorithm used by an online service. What I have now is thousands of pairs of original string and result hash. Some examples: 62.152.39.195 25d10817d8d2836925 ...
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2answers
232 views

What happens if my ISP gives me an IP address that's already being used [closed]

Like the title says, what happens if my ISP gives my connection (by accident/on purpose) a public IP address that someone else is currently using to browse the web or send an email or pay his bills? ...