Questions tagged [ip]
IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.
2,854
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Ubuntu 20.04 forward traffic between two interfaces (wlan0 and eth0) using NetworkManager
Running Ubuntu 20.04 on a Pi with netplan disabled and using NetworkManager only.
Have wlan0 running in AP mode and an ethernet cable connected to the Pi.
I want connections made to the wifi AP on ...
0
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1
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RDP to a server behind load balancer - allow per original source IP
I have some Windows 2016 servers that are located behind a load balancer. I don't have any control over the load balancer other than being able to connect to servers via it. This whole set up is in ...
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Is the network part of an IPv4 address unique? [closed]
I get that an IPv4 address can be subdivided into two parts, the network part and the host part.
In my private home network, is the network part publicly unique?, i.e., may other people have the same ...
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Is X.Y.0.Z a valid IP address? [closed]
Are IP addresses with a 0 in the third octet valid?
192.168.0.100
In my case, I have the the following netmask
255.255.255.0
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3
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Hide server IP for user's DNS record
I am starting a web hosting service using my own server. Are there any possible ways to cover my IP address for users to point their DNS? For example, my server's IP is 12.34.46.78 but I want the user ...
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Using 'netsh interface ip set address' to override another adapter's address?
I'm one of the developers of the OpenConnect VPN client.
We're trying to modernize and improve our support for Windows. We use a user-customizable JScript called vpnc-script-win.js to configure IPv4/...
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1
answer
780
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Simulate network reset or failure in Windows
I have to check if my server application can recover from transient network failures. The application listens on some ports and is a client to backend services. I would like to run some command or ...
2
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1
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How to force `ip route get` to ignore a specific device?
How can I do ip route get, but force it to ignore a specific device?
When I start my VPN, I run ip route get <vpn_server_ip> to determine what interface to use to connect to the VPN. Then I add ...
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Having static IP allocated, still have to use DHCP, otherwise it does not work. Why?
I have a static IP address allocated by my Internet provider. However, support told me I have to use DHCP on my network interface, otherwise it may not work (and it actually does only work with DHCP). ...
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2
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When 'dig' returns a single A record, the IP address changes between calls. What is this a sign of?
In my internal work network, whenever I launch dig against a particular hostname, I get result similar to this:
;; ANSWER SECTION:
some.internal.host.com. 10 IN A 10.210.54.121
If I keep ...
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ifup gives "misplaced option"
When I run ifup ens33, I get this error:
/etc/network/interfaces:5: misplaced option
ifup: couldn't read interfaces file "/etc/network/interfaces"
the result when trying to restart network ...
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Network performance issues between Windows/Hyper-V and remote Linux VM
I'm in the midst of migrating an application away from a Win2k16 server but it seems the win server doesn't agree to the plan.
When migrating the data, I realized that performance is incredibly bad, i....
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Nextcloud Static IP address slowing down the website
I installed Nextcloud on my Ubuntu 20.04 VM. Everything is working nicely, webpage is fast, the server gets the network credentials from DHCP server.
I want to change the IP address of my Nextcloud ...
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1
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Windows 10 client: can't force outgoing traffic to a specific subnet to be transmitted from specific NIC
In my network setup, I have two computers
a client with Windows 10
an Ookla server with CentOS v7.9, which is a VM hosted in an ESXi hypervisor
that both have two network adapters of the same kind:
...
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2
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How to point external DNS record to GCP VM instance without static external IP?
I have many VMs in Google Cloud that are required seldomly for debugging. Running them all the time would cost quite a lot, so they're shutdown most of the time. The problem is that Ephemeral IP ...
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Can we have multiple IP addresses with different Net IDs on an interface? [closed]
Can we have multiple IP addresses with different Net IDs on an interface? Like a Network Card? For example setting up 192.168.1.2 and 18.170.2.5 on the same network card. If yes, where do we use this ...
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Get-NetIPInterface property 'Dhcp' is 'Enabled' after setting static IP configuration with netsh
The Question
Set a static IP configuration with netsh:
netsh interface ipv4 set address name="Ethernet1" static 192.168.0.20 255.255.255.0 192.168.0.1
netsh interface ipv4 set dns name="...
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1
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Why can't my internal IP addresses be granted access from IIS 10 IP Address and Domain Restrictions?
Why can't my internal IP addresses be granted access from IIS 10 IP Address and Domain Restrictions?
Backstory:
I have implemented IIS 10's IP Address and Domain Restrictions to block access to one ...
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2
answers
2k
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Static public IP address + OpenVPN + Setup
Grettings,
I'm trying to figure out a way to make things work. Basically, my coworker needs an access to our client's backend dashboard and to get access they need to whitelist our public IP. Since we ...
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Are there STUN implementations that can sometimes handle symmetric NATs?
I've been working on connecting two devices that are each behind a symmetric NAT and managed to make it work quite consistently. However, it takes quite some time for the connection to happen (...
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1
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How to find an actual physical host/IP for a specific Domain-based DFS file share path?
Assuming that there is a Domain-based DFS share path
\someDomainBasedDFSRoot\someLogicalSubfolder\someSubfolderCorrespondingToAPhysicalHost\folder\file.txt
I'd like to get the IP (or probably at ...
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546
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TCP checksum errors between linux apps and NICs
I'm writing an internet application and I'm at the stage of crafting my own TCP packets. Except there is a major problem. According to the TCPDUMP utility in linux, every tcp packet that I send out ...
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Change origination IP of a packet based on end point IP
I Need to change a network packet origination IP address if the destination IP is a particular address.
Here is my setup - i have a VM that is assigned three IP addresses,
one data, one management and ...
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How to set AWS EC2 security group to allow SSH from all computers connected to 2 different home networks?
I have a Verizon router and a AT&T router at home and multiple computers that are connected to one of the two routers. I just started a free tier AWS EC2 Ubuntu server and would like to set its ...
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2
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I'm able to access router panel on 192.168.100.1, although I don't see such network in ipconfig [closed]
I am able to access the router's administration panel at http://192.168.100.1/logon.html.
ipconfig returns this:
$ ipconfig
Windows IP Configuration
Ethernet adapter vEthernet (External Switch 1):
...
2
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0
answers
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tcpdump: invalid cksum from client to localhost interface even after disabling offloading
I'm having a strange issue.
In linux I have two windows open. one running tcpdump and one running curl. I used curl to try to make a connection to local host and tcpdump logs invalid checksum errors. ...
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0
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Issue with Difference In Proxies
I have been recently diving deep into making proxies using servers and such. There are multiple proxy companies where their proxy IPs are traced back to https://www.hetzner.com/. These proxies provide ...
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1
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Windows Route Add when Gateway is text instead of IP
I have the following in my route table if I connect to my Company VPN.
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination ...
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How to do a source route to a proxy server?
I have:
A router with an IP set to 192.168.8.1
ComputerA with IP 192.168.8.11
A Proxy server with IP 192.168.8.102
My network 192.168.8.0/24. gateway 192.168.8.1
I want to route ALL traffic from ...
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2
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How to map a domain name to a LAN PC [closed]
I've registered a domain name from godaddy and I want to host the website in my personal computer.
My PC already installed LAMP(linux+apache+mysql+php) and connect to the router which connect to ...
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1
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Should my web server be accessible directly by its IP address, and how would I go setting that up?
Currently I have a Django server, which works normally if you go to www.notmyactualwebsite.com. However, I get a bunch of bot accessing the IP address directly, i.e. 12.34.56.78:443 to which Django ...
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No valid IP addresses found for subdomain with certbot
I am currently trying to set up an email server, and recently stumbled over getting a SSL certificate from Let's Encrypt in this question and realizing it isn't necessary if I don't have a web server, ...
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1
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procedure/protocol for ensuring the decency of a new IP address
According to the comments on is it possible to get a bad IP address when setting up a new VPS? one can't assume that a new VPS IP address is decent. So how do I ensure (before I start installing ...
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Pointing My Domain Name to my VPS
I have purchased a domain name and I asked them how to bind to my VPS. They answered, I should either use a control panel or create my own DNS server. So following guidelines about how to install BIND ...
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commands to make ethernet interfaces up down using ip command
I was using following commands to up the devices
# ifconfig p1p1:1 10.250.0.0 netmask 255.255.0.0 up
# ifconfig p1p1:2 10.251.0.0 netmask 255.255.0.0 up
# ifconfig p1p1:3 10.252.0.0 netmask 255.255.0....
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2 IP addresses - 1 NIC or 2 NICs
I have tried searching for an answer to this, but to no avail.
What is considered a best practice in a scenario, where you would need to add a 2nd IP address, from a different address range to a ...
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HP Proliant DL380 Gen9 iLO connectivity
I'm trying to install windows on a recently purchased (used) HP Proliant DL380 Gen9 server but I do not have a monitor to connect to the server to guide the installation.
The only way to do it is ...
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2
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Track IP Adress login RDP when shutdown happen
Today I arrived at the office of an client and the Hyper V server was turnoff. In the Windows Event log is register that the admin user has send a shutdown command. I'm not the only one that has ...
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implementing a failover service for containers
Two VMs are hosted on the same machine, let's name them VM1 and VM2. Both VMs are hosting a runC container running a server application, a client is running directly on the host machine and is ...
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1
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2 IP addresses into 1 IP address
I use a load balance broadband router in order to double or triple the speed of my internet connection, as it allows multiple WAN entries, which are then used all together into one much faster speed, ...
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Postgres remote connection timeout works on one machine but not on another
im trying to connect remotely to a postgres database, after opening the connection for my public IP address on the server hosting the database, I was able to connect successfully to the database from ...
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Domain & IP pair reputation
Recognition a pair a of domain & IP with positive history builds reputation in the eyes of many ISPs. But how does this relation looks like? How important is Domain rep vs IP rep? Can I use many ...
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What are the symptoms of an IP address conflict?
System administrators must take special precautions when setting up two DHCP servers on the same network. The most common problem caused by competing DHCP servers is an IP address conflict.
Windows is ...
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Why does my domain name work whenever I ping it, but not in the browser?
my domain name, "codeplane.dev", (who's IP address is updated periodically using Google's dydns API), can be pinged and displays the correct IP address when pinged, but whenever I attempt to ...
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2
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442
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moving ip of one VM to another VM
I've hosted two VMs on the same machine, one is active in nature i.e. hosting a service and is connected to a client (client is running directly on the host machine).
I've to implement a fault ...
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0
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Updating IP in FreeDNS eg. in 5 seconds instead of an hour via script
Like the title says. At freedns.afraid.org website interface I can set the TTL if I'm premium. But how can I set it to 5s instead of the default 1h using/extending this script:
#!/bin/sh
#FreeDNS ...
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1
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How to assign an additional IP to loopback
I have a few docker containers which are supposed to access a shared PostgreSQL running on the Gentoo host. This works well if the dockerized apps connect to the database using the public IP of the ...
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Getting more than 65535 ports using multiple static IP's on AWS
I run a service that needs more than 65535 ports and I use an AWS VPS
I was thinking what if i attach more static IP's to that VPS, would each of those IP's get 65535 ports whilst being connected to ...
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How to identity who is scraping my website?
I have an e-commerce website, hosted on AWS.
I understand there are tools that prevent/block the scraping bots. But is it possible to detect who is scraping my website? I mean, would I be able to ...
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IP replace default outbound [closed]
With these two commands I can set the default outbound IP, but how to make them persistent after reboot?
# ip route replace default via 172.31.1.1 dev eth0 src 49.12.112.180
# ip -6 route replace ...