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Questions tagged [ip]

IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.

IP (Internet Protocol) is a protocol which encapsulates data for transit across the Internet and encodes its source and destination addresses, among other parameters. It implements the network layer (layer 3) of the OSI model.

Questions related to IP (addressing, routing, and protocol issues) fall under this tag; questions merely containing an IP address do not.

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How a dynamic dns provider update my IP for the subdomain he gave me?

No-ip and dyndns, for example, give me a subdomain which will point to my latest IP address. However, how do they update the IP for this subdomain? One method would be to ask the registar for this domain to update it for me, but this would take…
guerlando
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My web hosting provider is providing 4 nameservers, which do I use to to point my domain?

I host my domain at GoDaddy, and purchased hosting from another website. The new website I'm using for hosting is providing 4 nameservers, while in GoDaddy it only provides 2 text fields to enter custom nameservers. Example of the two text…
KayEffSee
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can I still map an IP address to its ASN number when the last octet is masked?

I have a database of IP addresses whose last octet has been masked IpAnonymizer.mask_ip("8.8.4.4") # => "8.8.4.0" Can I still use map these IPs to their respective Autonomous Numbers or the mapping is lost? Thanks!
ℕʘʘḆḽḘ
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How to connect two different networks hosted on 2 different NICs

I have a Windows 2012 R2 server which has 4 NICs. Two of these NICs are connected to seperate private networks(not connected to internet). NIC3 is connected to 192.168.137.1 (Subnet mask: 255.255.255.0) and NIC4 to 192.168.1.1(same subnet mask). All…
Abhishek Agarwal
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IP Address and Subnet Address Validation

I am developing a code to validate that an IP and Subnet IP combination is a valid one. Say the IP address is 192.179.10.105 and its subnet mask is 255.255.0.0 - so what are the validations we can make to check that IP and Subnet combinations is…
Programmer
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How does MS know which public IP addresses are dynamically assigned

I came across this article which says that Microsoft is blocking SMTP from dynamically allocated public IP addresses. https://support.microsoft.com/en-us/help/886692/microsoft-com-now-blocks-incoming-smtp-mail-from-servers-that-use-dyna I don't…
user2629636
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How to access host in LAN using alternate IP address?

I have a server in LAN (192.168.1.0/24) with static IP address 192.168.1.100, now I would like all service on this server to be accessible using 192.168.100.100 for hosts in the same LAN(192.168.1.0/24), eg. when trying to access…
nobody-74185
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Create a VPN across diffrent public networks

I have a bunch of 10 iDrac servers, distributed globally across different datacenters with public IPs. There are no firewalls for these servers. How can I bring them into a single network, so that all these servers can be accessed only via a bastion…
athavan kanapuli
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windows 10 ip route not working for modem usb 3G

i have 2 interfaces: 1 .- Cable ethernet 2 .- USB modem 3G, The problem is i cannot work with both at same time, routing seems not to be working for me... I cannot nake this work: 0.0.0.0 0.0.0.0 10.39.232.98 10.39.232.97 …
user1418446
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how to identify the organization behind a given IP address?

I have a large dataframe as follows (fake data below): ip 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 192.168.1.5 Given the large quantity of ip adresses in my data, I would like to merge them with an offline dataset that would tell me for…
ℕʘʘḆḽḘ
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Domain name is opening the website but its IP address shows nginx Not found

My domain name is www.blissedmaths.com. Its IP is 159.89.162.44. while opening through blissedmaths.com, it opens. But IP address not working. Due to that, I am unable to access my droplet via WinSCP (by SSH) How can I access my droplet on the…
Ishwar Jangid
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Wireguard VPN Outbound and Inbound

I am trying to setup a Wireguard tunnel so that A uses the IP of B for outbound and inbound traffic (like a proxy, not a std VPN config). Both boxes are Ubuntu 16.04. A is eth0, behind a router with NAT and on DMZ, with IP A B has two public IPs: a…
Gaia
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iptables not catching packets based on source IP

I'm creating a proxy server on Debian 8, and are trying to do DNAT on incoming packets - which are being forwarded from another server. This is my iptables DNAT rule: iptables -t nat -A PREROUTING -s 10.1.10.10/10 -j DNAT --to-destination…
Alfred Balle
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IIS 7.5 Domain Restriction working but not IP

We have a web service that we are trying to impose access restrictions on in production. This web service lies on LAN based internal server. It is called from web applications sitting on the same server and web applications sitting on a DMZ server.…
Ben
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Cannot connect to my VPN and have client display server IP

This used to work but no longer seems to. Didn't change anything as far as I know. This is the client .ovpn-file: push "redirect-gateway def1" client dev tun proto udp remote myip 1194 float comp-lzo adaptive keepalive 15…
djokerndthief
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