Questions tagged [ip]

The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.

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Couldn't arp for host, Kali Linux

I am currently learning the basics of cybersecurity and I am trying to follow the following tutorial on ARP spoofing. I am using kali linux on a VirtualBox VM on my Windows pc to redirect my windows ...
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Who tell DNS servers what IP corresponds to a new web address?

Let's say I have my own server and I would like to tell DNS servers what web sites I host. But how would they trust me? The only one who know my real IP would be my ISP. So DNS servers should trust ...
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Creating an IP route for a network from one of its subnets

I am looking at a shell script that creates a namespace (NSNAME) and a veth pair (veth-in-root, veth0). After it brings up the veths and setting the ip addresses for them, there is this line: ip -n &...
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Self hosted game server security

Not sure if this is the correct place to post this question... My son keeps asking to set up a minecraft server on his PC which then gives him control over the "world" and he can invite ...
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How would a hacker be able to spoof their IP when logging into a private FTP server?

If, somehow, someone gains access to one of the users on my FTP server, I would still be able to see their IP address and trace it to them. However, I fear that it might be possible for them to spoof ...
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Do devices plugged into an unmanaged switch need to be on the same net?

I have two USRP radios plugged into an unmanaged switch. Their IP addresses are 192.168.10.2 and 192.168.20.2 . If I connect these to the unmanaged switch and connect the switch to an ethernet port on ...
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Can I force a web proxy to use a specific IP address for a hostname?

Background: I want to test a site on Akamai's staging network. This usually requires you to find out the IP address of the specific edge hostname and then change your local /etc/hosts file so the ...
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ufw logs BLOCKS from 2 sites while BLOCK logging is completely disabled for ALL sites

Logging is enabled. Only allow rules are logged. The very last line of my firewall rules is: Anywhere DENY Anywhere No logging is asked for, however two IPs repeatedly show ...
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How do I connect a router to a static IP (relatively more complex than the title makes it sound)

I know this seems like a rather trite question. (Short summary: I am using a normal home router (that can be used as a router or access point, etc, but I am using it as a router) on the computer I ...
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HTB Why I can't access machines http site outside kali linux

I can't access website's from hackthebox.eu outside Kali Linux. After an nmap scan it shows that it has a HTTP open port and I can access the website through IP in Kali not on the host OS (Ubuntu 18....
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A Dos attack possibilty using IP Datagram and TTL

So I recently learned about the whole IP Datagram and its headers. We learned about the TTL field that exists because sometimes a packet from a certain network id will be sent to another router, but ...
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How to make my selfhosted website use the IP of a remote server rather than the public IP of my home?

I have a running VM instance on Azure with a static IP. I need to know what's a simple method of making my website, that I'm hosting on a Raspberry Pi at home, accessible to anyone from the static IP ...
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Create an additional IP address from the 10.42.12.0/24 subnet on Linux Kali

First of all I'm connected via OpenVPN with another machine. My network configuration looks like this: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 ...
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Can't access a host IP, but can traceroute and MTR

We are having an issue with a website hosting provider. All of our sites, and other people from home alike are able to access our website, however one of our two uplinks at one site is unable to ...
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How does a router know that it should receive the packet, if the packet was sent to a public IP address?

Let's say that I have a router that has a public IP address on one of its interfaces and a private address on one of the other interfaces, let's say 192.168.1.1/24. Then there is a computer connected ...
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Buy IP range independent of provider

I would like to ask a question. Is there any wat to acquire IP, independent of provider? Can I buy IPs and use them in different data centers? We have physical servers in the united states and germany....
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What handshakes happen (or need to happen) when I connect my FPGA with Ethernet cable to my home router+modem device in one of its ethernet port? [closed]

I have a FPGA edge device. I want to send and receive ethernet packets to my laptop through the router+modem device at my house. My laptop is connected to the router+modem through the wifi (for ...
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Can't access my public IP outside of the country

Even a month ago everything was working fine, but recently I found out that my Public IP is no longer accessible outside my country. https://fahimscirex.duckdns.org is the link attached to my public ...
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SSH into a Public IP address with a specified port

I am attempting to SSH into a camera for work and need a little help. How all this is set up is as follows: We have a single site set up with two cameras and a cellular modem. Both cameras are using ...
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How to prevent other people using the specific IP address?

I have a local PC that required a specific fixed IP. But it is frequently that other PC or mobile devices are using that specific IP. I have tried to assign that IP to the PC mac address on my router. ...
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Why are there ping replies from within 172.31.0.0/16?

Today I accidentally discovered, that I can ping addresses in the 172.31.0.0/16 subnet and get an ICMP reply. I tried a few random ones, it always got replies. After checking the routing table and a ...
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What's the difference for a hosts file when deciding to use 127.0.0.1 or 0.0.0.0?

Since 0.0.0.0 matches any address and 127.0.0.1 is localhost, when deciding whether to choose one or the other to map unwanted IPs and domains in a hosts file, when is each best? I read that in terms ...
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Bridge with two public IP adresses

I have two public IP adresses and one network interface. On the host I am running Proxmox with a Sophos FW VM. My plan is to have one public adress for the host and one for the VM. The current setup ...
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Can a website "secretely "identify me by other ways than just IP? [closed]

How can website that limits downloads per IP "ignore" that IP is changed by VPN? I really am not keen to overcome a such limitation, but I'm just curious how (or if) the website may act as ...
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Why is google showing me a different external IP address than router

This question is in a way a follow up question from here: Can an ISP block port forwarding? I was look at the isp router's info page and the IPv4 address is : IPv4 Address 100.87.***.1** However when ...
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Configuring a Eero Pro 6 router for static IPs

We recently had fiber run to our office. I mistakenly told them that I could configure the router myself to use the static IPs they provided us, but I have confused myself. Here are my IPs provided ...
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How to get all IP addresses from connected devices with specific device name?

I'm making Bash script for automation and would like to get all IP addresses from connected devices with specific device name? For example I have 10 devices connected to Wi-Fi. All with same device ...
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How to SSH control your Windows through iPhone shortcuts on every network?

How to SSH control your Windows through iPhone shortcuts on every network? I have noticed every time I connect to a new network the IP of my Windows changes, which makes the SSH request useless! How ...
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Msg to everyone in same router?

I got router in my home, and I would like to send message to everyone using it. I mean like one that will show up on their screen. I tried to look for answer, but it wasn't what I wanted. It would ...
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Wrong hostname resolution in Local network

context I was trying in vain to map drives from my NAS to my PC via NFS when I figured out that my PC hostname was not resolved with the proper IP address from my NAS or any other devices connected ...
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How can I hide my server IP from server users

I'd like to find a way to block websites like https://checkip.amazonaws.com or at least restrict them to the point they can no longer output my server's public IP address. For example, if I do curl ...
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Why can't I log in to PuTTY as user, but only root

I'm trying to Split and format Disk on VM in Debian. I also need set file permision. My problem is that I can't log to the server through PuTTY as user, only as root. I entered same IP address as for ...
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How to update admin password of an offline machine

I have a windows machine that is a member of an Active Directory network, but the network is unreachable due to mistake in the network configuration that is not yet resolved. I know that this issue ...
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1answer
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Static IP for Router set in bridge mode

I have two routers Router-A is connected to the internet (Tplink Router) Router-B is connected to Router-A via LAN cable and set to "bridge" mode. (Iball router) I am able to access the ...
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Not able to ping AWS ec2 IPv6 address

i have t3.small EC2 instance i have associated ipv6 address to it but not able to ping the address . 1.able to ping IPv4 of same instance 2.for reference i have used - https://docs.aws.amazon.com/vpc/...
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how to find the IPv4 Address of a program running if you are using 2 network adapter

i am using 2 diffrent network adapter, every one got 2 ip IPv4 Address how to find the IPv4 Address of a program running in win 10 not the local ip or the target , i mean the public ip , because i ...
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How do I connect to two wireless APs (with the same host IP) on PC?

So I have two GoPro Hero 7 Blacks and if you want to remote control them via a PC API, you need to join their AP WIFI network as a client. So, if I want to connect to two of them, I need to use two ...
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Can someone explain my 3 MAC addresses on my router modem

I have an odd issue. On my netgear router/modem admin page I have 2 MAC addresses with last letter difference one is an A the other a B. But on my bridge router connected to the netgear one I am ...
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How can I open a port on my public IP with my router?

I am trying to port forward a port on my IP. Unfortunately, my router (Sagemcom F@st 5657 interface) only lets me open ports on my private IP, which is useless if I want to connect from other ...
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Why does "what is my IP" not match what I see in my Apache logs?

Just trying to get a better feel for how things work. I'm currently tethered to my phone and when I do a search on Google for what is my IP I get one public IP address, we'll call it A here, ...
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Binding second ip to port Windows

I have a windows PC with 2 ip4 addresses (for ex 1.1.1.1 and 1.1.1.2) and I want to use them as proxy for web surfing. For example, if I set as a proxy ip 127.0.0.1:80, it works, but only with the ...
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WiFi Adapters not pinging IP address

I have two WiFi adapters : WiFi 1 (default, internal adapter for my desktop) WiFi 2 (USB WiFi adapater) On WiFi 1, I get request timeout when trying to ping some IP addresses but WiFi 2 successfully ...
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Use Site A IP prefix at Site B

I'm currently has two VMs and installed CentOS 7. These are configuration (All IP address is not real, just for easy reading) Machine A : Has public IP 61.75.1.201/32 Announcing IP prefix 112.213.1....
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ip routing - How to find the gateway

Im trying to add a route to my routing table to reach other networks. I can ping the machines on the internal network but not the ones that are in other networks. Things i tried so far: i added a ...
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How do I change a Netgear R8000P default router IP address without losing access to the router?

I have traditionally had a router at the IP 192.168.0.1 which is a) easy for me to remember and b) has allowed me to have static IPs for devices running in the x.x.0.x range (192.168.0.5, 192.168.0....
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Ubuntu 20.04 - Save wired network with static IP

I've set up a new wired connection with a static IP in order to connect to the internet at my university. We're provided with a static IP, netmask, gateway, and 2 DNS (IPv4) to connect. I've ...
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Prevent networkmanager to disable an interface if dhcp timeout when mixed dhcp and fixe ip configuration

I need to find a way for a computer to have both a fixed ip address AND have be a dhcp client on the same interface. So far it works great, I am using Debian 11 and NetworkManager. The problem, is ...
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Unable to find request IP address when port forwarding because all network traffic source ip is my router's ip

I'm currently trying to host a mini flask app on a linux ubuntu 20.04.3 LTS server on an old laptop and I've enable port-forwarding on my router so I can access the flask app from the internet. Now I ...
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Can't find managed switch on network, and one port is different (TL-SG105E)

I recently got one of TP-Link's TL-SG105E switches for my home. It has 5 Ethernet ports, but the fifth is noticably different: It clearly has higher prongs, and its LEDs are labeled 1000M (green) and ...
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OS X: how to add a route to a hardware mac address?

When I do netstat -rn in Mac OS X I get some lines like the following: Destination Gateway Flags Netif Expire 192.168.2.100 8:0:27:ad:b8:67 UHLWI en0 182 ...

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