Questions tagged [ip]
IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.
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Does VPS server have a static IP?
I am switching from shared hosting to VPS on a different host. I was thinking just to type in the IP into DNS records, but a popup text about floating IPs got me confused. I'm not sure now if:
this ...
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VXLAN with different group but same vxlan id on ubuntu
I'm playing with vxlans on ubuntu 18.04 right now and I just found something strange. I have 2 servers with 4 containers on each. Containers are connected to bridges br1 - br4. There are vx1 - vx4 ...
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How do you have multiple websites on one ip address with no dns(raw ip address)?
I have two private websites that are running on different devices, that I want to use but aren't using a DNS, so the web pages that I am using are on the same Ip-Address. How can I get the contents ...
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systemd: Why "ens3: Could not set route: Network is unreachable" when default route is valid?
Recently my VPS hosted at OVH abrutly lost connectivity. Upon further inspection, systemd-networkd was failing to set default route: ens3: Could not set route: Network is unreachable. It isn't clear ...
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Why this ip range is only showing * * *?
I've got a question.
When I try to do this on GNU/Linux:
traceroute -m 255 -I [the_ip]
Then I get this:
192.0.0.1 (192.0.0.1) 6.788 ms 6.774 ms 6.781 ms
62.214.36.201 (62.214.36.201) 7.672 ms ...
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Ubuntu set default outgoing ipv6 address
On my ubuntu server I configured multiple ipv6 addresses as following with netplan:
network:
version: 2
renderer: networkd
ethernets:
eth0:
addresses:
- xx.xx.xx.xx/22
- ...
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google vm instances does not seem to be on correct region
I created one google vm machine engine instance in eu-west1-b region. In GCP Console seems to be in eu-west1-b region. However when I try to gelocate my ip's they seem to be in somewhere in China.
The ...
google-cloud-platform
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3
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In IPv4 Subnets - a /23 - How do we know which range to use? [duplicate]
Let's assume I don't know what my IP range is, or my default gateway, but I know my IP address is 192.168.5.38 and my CIDR Range is /23.
How do I know what my IP range is?
Is my range
192.168.4.0-...
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Different IP for same FQDN using different resolver
For my domain gobudgie.ml I get different IPs on different DNS resolver eg.:
[email protected] (Default):
jasmich.ml. 964 IN A 31.17.211.88
[email protected] (CloudFlare):
jasmich.ml. ...
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1
answer
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why my Authoritative DNS Server on Ubuntu 18.04 not working after server ip changed? [closed]
I have an Ubuntu 18.04 VPS server that I ran both authoritative DNS and web server on it.
I use BIND 9.11.3-1ubuntu1.9-Ubuntu for DNS system.
Everything was just fine until for some reason I had to ...
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answer
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cURL specify outbound IP - Windows
I have configured my Windows AWS instance to use two IP addresses and would like to be able to choose which of these two IPs are used for a HTTP GET request using curl (pycurl).
I want it to appear ...
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OpenVPN on same server with proxy
I have OpenVPN server with clients with static IPs (192.168.1.0/24). When I access another device connected to VPN I get desired 192.168.1.2 static IP, however when I access proxy server on same ...
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i cannot login to IMAP/POP3 from different location
[Please read before marking as duplicate]
I have installed Postfix and dovecot on Ubuntu (for virtual Users).
So i can login into the mail server from home using cellphone(mail app) and even on ...
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How to solve the following error?
I have created one instance at Amazon Lightsail where Platform is Linux/Unix and choose Wordpress as an application. Using this Wordpress, I have designed one website and it is running using Lightsail ...
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Coming Soon Page with Varnish : Exclude Redirection by IP
I've tried to install Varnish Cache with Magento 2. It seems to work OK (although I still have a no-cache to find and to delete apparently ...) but my .htaccess redirection for my "coming soon" page ...
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How is name resolution happening?
I have a Windows Server 2008 R2 server we'll call server1. It is in domain A. Another machine, server2 is in domain B. If I try to do an nslookup on server1 with just the host name server2, as you'd ...
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What is the VPC accepted address and why [duplicate]
i am trying to create a vpc but the ip i am providing is not accepted which is 192.168.1.1/16 but aws says i can use the following range if i set to 192.168.0.0/16 it works , i guess to an extent ...
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How does Shopify manage hundreds of thousands domains to one IP [closed]
I am wondering how does Shopify routes and provides SSL certificates for the hundred of thousands of domains that are pointed to their IP Address 23.227.38.32.I am trying to build a similar service as ...
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How to connect two networks having the same network address using a linux host which is part of both networks with the same IP address?
I have two cloned networks (lan1 and lan2) used for testing purposes, each with the same address space 10.20.80.0/22:
# 10.20.80.0/22
10.20.80.0 # first address
...
10.20.83.254 # last address
...
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Assign an Elastic IP to an AWS Transfer SFTP
I want to assign an elastic ip address to an AWS Transfer SFTP service because outbound SFTP connections have to be whitelisted for clients of mine. The FAQ for the "AWS Transfor for SFTP" service ...
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How to characterize a physical device on my network?
I have inherited a data centre with very little documentation. The network is split up into multiple vlans (and subnets which don't tally with the vlans). I have a lot of physical devices, some which ...
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Network interfaces, how many can handle [closed]
I got very confused about network interfaces. My laptop has only 1 network interface card with just 1 port. So I assume it is 1 mac address. When router using its routing table to route packet to my ...
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Different DNS resolution for multiple IPs
Greeting's, I am trying to configure different DNS resolutions for:
maniarfamily.com -- I want maniarfamily.com (or www.maniarfamily.com / https://www.maniarfamily.com) to point to Wix (23.236.62.147)...
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About duplication IP Settings on Cisco L3 Switch
I set up the IP for Cisco L3 switch, but why is the error only eth 1/2 even though there is an IP duplication as shown below?
SW(config)#
SW(config)# interface mgmt 0
SW(config-if)# ip address 192....
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Is IP rotation "a thing" for improving security in web servers?
In this article from Cloudflare, IP rotation is mentioned as a way to protect web servers.
How does that work? Is this the same as ordinary load-balancing with failover, or something else?
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What does ISIC option "-t" mean?
As I already found out, ISIC tool has an option "-t" only for tcpsic or tcpsic6 and it means percentage of packets with wrong checksum.
In tcpsic case my router works fine.
But when Ive been testing ...
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answer
125
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map local address to external one?
Currently I have a network setup like this:
Router (aka. OuterRouter) to connect to the Internet (localIP: 192.168.0.1/24, externalIP: <whatever, provided by ISP>)
Router (aka. InnerRouter) ...
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Why may a machine be seen as having a local address by ssh server when sshing to itself through public IP?
I configured sshd_config on two machines A and B in the same way such that connection is possible in local network with password :
Match address 10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
...
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How to create a VPN that maps users into VLANs each?
I want to setup a VPN server that puts each user into a different VLAN.
I've got a network with about 200 users in which each user is in a separate VLAN with his own /27-IPv4 network. Which user ...
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Fail to ping/ssh from single machine to another specific machine
I'm using Google Cloud, there are 2 machines on the cloud which can't ping each other, A can't ping B, and B can't ping A too; all other machines can ping to A&B as usual. But it happens only on ...
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Capture the VOIP calls receive to a sip phone that send Notificantions to an API on a call
This is whats I'm trying to achieve I want a SIP phone or (is there is any other way I'm open too) to take the calls it receives from a VOIP provider take the information related to the call when ...
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possible to set remote IP Address (with IPCP) via Windows Dial Up?
is it somehow possible to set the IP Address of the remote device, using IPCP, when using a Windows Server for a Dial Up Connection via ISDN?
e.g. via Linux it is simple calling pppd with option ...
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How to reliably keep a list of servers in a company network
We want to set up a connection to several servers at a customer site and are requested to deal with potentially changing IP addresses as they don't want to keep track of the MAC addresses used, with ...
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Change multiple interface IP’s with networkd on coreos
I have a working CoreOS machine where I need to change two virtual network interface IP’s in the /etc/systemd/network file like this:
[Match]
Name=interface name
[Network]
Address=ip address.
This ...
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1
answer
104
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Access print connected to another switch
I have two servers (NethServer and Zend) "creating" two different IP pools. These two servers are connected to different switches, one of the switches has a printer connected. So, how do I make the ...
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How to choose which IP apache2 uses globally
I have a server with 3 IPs and what to choose which IP apache2 uses, so it completely doesn't use the other 2 IPs anymore and Port 80 on those IPs is free for other applications. I searched, but I ...
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adding thousands of IPs on linux interface
i need to add 50k IPv6 on my server interface, these are used to proxy outgoing traffic.
i tried to use ip add ... dev eth0 but it takes a lot of time (using a script) to add 10k and even then it ...
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How can I access a .local url for a virtual ubuntu server installation?
I recently installed ubuntu server on a virtualbox virtual machine. I tried to connect it using <host name>.local but it didn't work? How can I access it from a url but not an IP?
(I do not ...
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How to determine if a public IP address is in a datacenter or home etc
How can someone determine if a given IP range is in a datacenter or for home usage etc.?
Companies like MaxMind provide lists of IPs located in hosting centers.
How do they get this information?
Do ...
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Can I ping all AWS buckets in the world?
I have 2 questions,
Can I ping all the AWS buckets in the world? I would use a simple shell script which will curl with a dictionary of names/number combinations or some other method.
Will my IP be ...
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Why does my AWS EC2 instance return "Unknown host" when doing a "hostname -i"?
Last week someone created an AWS EC2 instance for us using AMI type Amazon Linux 2 AMI 2.0.20190313 x86_64 HVM gp2. Let's call that Instance1. Yesterday we found a problem with our software that may ...
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ip routing src rewrite
been fighting on this configuration for too long.
Let say a public IP : 1xx.24.184.yy/32
Let say a private network : 10.184.yy.0/28 gw 10.184.yy.3
Now I would like my public IP routed ...
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778
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openvpn ip pool exhausted
We have setup 3 OpenVPN servers (v2.4) in 3 different physical machines.
They are all part of the same network.
When a client (v2.3) is connected we want him to go on either one of the VPN servers ...
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Can a router be connected to a both a subnet and a subnet inside that subnet?
Can a router be connected to both a subnet 1 and a subnet 1.1 which is a subnet inside of subnet 1?
For example, can a router be connected and sent packets to subnet 223.1.17.128/25 and 223.1.17.192/...
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Make program think that it's connecting to one IP, but spoof it with another [closed]
There's program that can connect to servers, but it's limited to 6 predefined IPs (although it has ability to connect to other IPs, don't ask why and how). I can't modify it.
I need to connect to ...
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1
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ip rule and route doesn't get respected
I'm trying to route packets based on their source address, and have added the following:
# ip rule add from 10.10.10.0/16 dev eth0 table foobar
# ip route add default via 100.100.100.1 dev eth0 table ...
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Choice of non-standard ephemeral ports
This is somewhat related to - but different from - Recommendation for a non-standard SSL port .
One answer there suggests that binding to 8443 is a valid example of an alternate HTTPS socket ...
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Git resolves wrong IP for domain
This is a first for me.... I'm trying to clone a repository from our GitLab server to a 3rd server. I have no issues cloning it anywhere else but this server. The output is the following:
myuser@...
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Tagged interface not receiving packets?
I have a VLAN ID 69 at interface enp101s0f0 that's not receiving any packets:
enp101s0f0.69: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.15.2.5 netmask 255.255.255.248 ...
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40
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Add ip link devices concurrently
I need to add/delete ip link devices like bridge and tunnels concurrently with low latency.
Currently adding a tunnel, a bridge and connecting them at 5 TPS turns to be in seconds if some devices are ...
