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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Does the google cloud platform store IP addresses of visitors? [closed]

A ticket on Netlify, another cloud computing solution, asks whether the service stores user IP addresses, and it turns out it does, for 30 days at-least. My question is, does GCP have a similarly ...
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Risks associated with IP whitelisting

I was told that IP whitelisting should not be considered safe and are hence obsolete. I fail to understand why this statement holds: can IPs be impersonated? if not, then why is it a bad/obsolete way ...
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Relationship between DoT / DoH and HTTPS

I'm trying to understand the different roles that DoT / DoH and HTTPS are playing when it comes to protecting sensitive data in the internet. I spend the day reading a lot of stuff about DoT, HTTPS, ...
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Is it ok to give out IP address to web developer [duplicate]

I’m currently working with web developer and he ask for IP address. Is it ok for me to send or is he trying to give me a virus or something
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Malware installed by grabify link?

I recently clicked on a grabify link and I think it might have installed a virus as well? The link was to a soundcloud page. I put the link into this website https://sitecheck.sucuri.net/ and it said ...
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A strange IP on a different subnet that my connection seems to run through [closed]

This started when I ran the tracert command because I was curious about the hosts my connection ran through. I saw standard ISP stuff, but I also found something strange. I saw that the first hop in ...
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I clicked on a grabify link. What can someone do with my IP? [duplicate]

I clicked on a link in discord not knowing it was a grabify link. I understand that an IP only gives your general location but what else can someone do with my IP? Can they find a way to access my ...
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I clicked on a phishing site [duplicate]

I accidentally clicked on a phishing link when I was going to a manga website that I usually go to but accidentally clicked on a website that was pretending to be the actual site, and I immediately ...
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909 views

How to ensure identity for server-to-server communication over IP

How would one go about ensuring that a server at a given IP address is who it says it is? I need to send confidential data to another server at another IP address. If the server had a public domain it ...
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nmap -sn different results than - sL (-sL shows missing host from -sn)

Executing nmap -sn 192.168.2.1/24 gives all hosts but 1 (192.168.2.116 just won’t show). ping 192.168.2.116 works flawlessly. Nmap -sL 192.168.2.1/24 shows all hosts also the missing 192.168.2.116 ...
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sending an email without being traced (IP, identity) [duplicate]

I want to send an email through Gmail without the other side being able to trace me. I actually want to report something. I opened up a new Gmail account with a fake name (I used Tor to log in). I did ...
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Is VLAN better than guest wifi feature

I own the internet connection and router and going to share it with apartment mates. I want to accomplish the following things Isolate our networks, such that they cannot see my internet activity or ...
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4answers
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How can I safeguard myself if share the same router with the people living in my apartment

I share the same wireless router with some other people living in the same apartment. I want to safeguard my privacy and also not be held liable for their internet activity. The modem from the ISP ...
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Is it different to access from ip than localhost? [migrated]

I installed Apache web server in a computer. Since I'm the only one who needs to access it for now, i added the line Listen 127.0.0.1:80 so that only I can access it. Before this I could access the ...
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Could an OS or app store and send my old IP after I start using a VPN?

If I connect to a VPN, go to some websites, post something or browse something, is it possible for my OS (Windows 10) in this case to: Store my IP before I connected to the VPN, say "old IP"...
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VPN doubt about “encrypting” an IP address

According to Kaspersky Encryption of your IP address: The primary job of a VPN is to hide your IP address from your ISP and other third parties. This allows you to send and receive information online ...
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Person tried to login in my website with non-existent username, but not a VPN nor Tor

I am managing a WordPress website. I have installed the plugin "Limit Login Attempts Reloaded". This plugin sent me an email saying that A.B.C.D has tried to login with the non-existent ...
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Is every packet in a home Wi-Fi which has say, AES password for connection, encrypted using the same password?

If there is an intruder in a LAN who knows the encryption type and password, will he be able to monitor all the packets which are in the LAN? Suppose someone on the LAN is visiting HTTP sites, which ...
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171 views

How do I find the IP address of a specific device on the local network? [closed]

I would like to learn how to find the private IP address of anyone connected to a network. This specific network has a firewall. The only info I have on it is that it blocks ICMP requests (I'm pretty ...
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Can two locations in the same city at the same time have the same IP adress? [closed]

I got a notice due to vandalism in Wikipedia and the perpetrator is someone with the same IP as mine. I looked up the notice and it seems that the vandalism happened last year and the person behind it ...
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Setting up VPN tunnel: what are the possible ways by which my true IP address could leak? [duplicate]

I bought a subscription to a VPN service and I set up the VPN tunnel using openvpn. In order to avoid DNS leaks, I am using the DNS servers provided by my VPN provider by manually enforcing /etc/...
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HTTP access from a single IP [closed]

If I were to configure a server that would be configured to only be accessible (HTTP) from a single IP address via a port, is it safe from unauthorized access?
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How to hide your ip information when visiting a website? [duplicate]

I am a data collection worker, and I usually have a large number of website resource collection tasks, how to hide my IP information when collecting. I do not want to be traced to my personal ...
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Can I change my public IP address to a specific one?

It happens that I participate in a bug hunting program and analyzing the app I realized that there is a particular parameter that is very important for access control and that only changes with the IP ...
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Can changing your IP address prevent an NMap attack?

If an nmap attacker started a port scan on my network, would changing my network IP address prevent/halt it?
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What client-cert validation can be gleaned from DNS/reverse DNS lookup?

I'm learning about X509 certs used in client-cert authentication to https endpoints. I have a nice Python script that checks many facets of the client-cert. Is there any validation that can be ...
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130 views

Data needed for ISP to identify users

If the following data is known: URL of web site X, Exact time and dates when the visit to web site X occurred, Anonymized IP address of web site visitors (without the last digit, e.g. 125.251.101.x), ...
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Skype resolver? [duplicate]

Got a call from "Group%20Maker" in the morning, it was straight away deleted from my Skype history but iOS kept track of it in my incoming calls. I have a feeling someone was trying to ...
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How to identify the usage of the tcp/ip Trek Stack

In order to mitigate the potential exposure to ripple20 zero-day, I must identify the device/s that have the Trek TCP/IP stack installed. Can I do this with software like LanSweeper? Or must I check ...
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1answer
458 views

How do I serve a webpage on a local PC without revealing my IP-address to end users? [closed]

Are there any ways to serve a webpage locally without revealing IP to end users?
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Got a call from “skype-resolver” on Skype. Should I be concerned?

This morning, I found out that I received a call from "skype-resolver" in the middle of the night on my phone. When I went to Skype, the call was nowhere to be found, presumably because the ...
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I now receive advertisements from a site used by a guest on my wifi she was on OS X I'm running LInux did they track my IP address only?

I seems a little strange that the only thing in common between me and my guest is that she was on my wifi and thus using my wan ip address, yet I am receiving advertising from a site she used. I'm ...
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Extrapolating home address of a visitor when they click on an e-mail phishing link (Mr Robot)

In Mr Robot season 3, the feds are set up in a safe house spying on Elliot's internet communications (with packet sniffers?) when they intercept an email from Elliot to someone else containing a link ...
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180 views

How does Shodan take screenshots from webcams which have authentication?

I just got my academic license for Shodan and I was playing around it. I noticed that when I use the has_screenshot:true filter it even shows screenshots from sites which requests authentication. How ...
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My friends are disrupting my internet connection [duplicate]

My friends have my ip address and they're all programmers/hackers. They've been interfering with my wifi connection several times today. Asking them to stop or saying "they won't do anything"...
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131 views

If an IP address is known, can all of its browsing activity be viewed by an outsider? [closed]

Internet service providers (ISP) can choose to have full information on the browsing activity of one of its subscribers. Can an outsider, who is not the ISP, but who simply knows someone's IP address, ...
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1answer
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Internet privacy, VPNs, etc. Am I anonymous? [duplicate]

I am a member of a forum that recently disabled my account because their system picked up another account from my household. Anyways their terms of rectifying the situation are pretty invasive to my ...
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59 views

How do I assure that a site that I visit does not know I have been there before? [duplicate]

If I use the same machine (my PC) but with a different IP address and a different browser that I have never used to visit a site, will that site still be able to identify me? I don't understand the ...
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Why is an IP address in a different city? [duplicate]

Someone lives in city A, but their IP address from home always displays as belonging to city B, 50 miles away in the same country. Both cities are the largest in the country, so this is not about one ...
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130 views

Does a professional website know that person A switches the Chrome “user” and logged into its website with another email address?

Let's say I have account A on site example.com that has a policy of strictly one account per real person. I then create a new Gmail address, use that Gmail address to open a new Chrome user (not ...
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1answer
62 views

Based on cookies, does a website knows that a user visited it if the user does not log in?

I, user ABC, have an account on some financial website example.com. I have logged in from my browser many times before so cookies were saved. Each time I would log off after I finish browsing that ...
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396 views

Privacy implications of static IP addresses (for home connections)

All the other questions I have seen here focus on the security implications of IP addresses. I'm interested about the privacy implications. In my opinion, static IP addresses for home connections (...
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3answers
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Someone got my ip with grabify, what should I do? [duplicate]

So right after I clicked the link, the owner of the link sent a screenshot, and it was accurate, the city was correct, so not long after my internet box reseted out of nowhere, while I was in class, ...
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89 views

Is it more secure to set up a network so that there are no unused IP addresses?

Is it more secure to set up a network so that there are no unused IP addresses?
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Can IP header TTL values be exploited as an attack vector? If so, what can protect against that?

As per some network certification training material, I noticed the following description of the Time To Live IP header: The time to live (TTL) is set into a packet when it's originally generated. If ...
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203 views

Does a hacker know which IP they hacked?

Suppose someone hacks my computer (by any means, say a virus or trojan like RAT), will they be able to know my IP address in real time? This is about dynamic IP addresses.
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Can a host OS be attacked through the network stack?

Forenote: I'm not familiar with how virtualisation works on a low-level (but I'd certainly like to learn) so this question could arise from ignorance. Example Scenario: One virtualised router is ...
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3answers
229 views

How many IP addresses can a user have?

If you don't have a botnet and you needed to use an application with a new IP address on each page load, how would you achieve that? How many different IP addresses can a person have? What does it ...
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167 views

Hiding ip address when using coinomi wallet

How do I hide my ip address if I use a wallet as coinomi? Do I have to use Orbot? If yes, what exactly should I do? (I'm using it from an android) I just want to have privacy when I log into the ...
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60 views

How does fail2ban et al deal with the IP neighbourhood of badly behaving IPs?

Please note, I'm looking more for established documented best-practice rather than personal opinion in this question. I'm also not interested in Fail2Ban specifically but the class of technologies ...

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