I have docker and docker-compose installed on a VM with ubuntu22.04 where I run a container for nginx-proxy-manager with ipv6 working. I can add Proxy Host with an ipv4 and works fine, but if I add a proxy host with an ipv6. it doesn't work and only gives me 500 Internal Server Error. I can open the IPV6 to my browser and will see the content of the host, as well as pointing a domain to that ipv6 directly in cloudflare without any problem. does nginx-proxy-manager support ipv6 or is there a config that I needed to add. Also I can ping from my docker host to the ipv6 IP of webserver that I want to load
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I have been searched many resources, but I can't solve this problem.
Firstly, I want to clarify that, my windows 10 all firewall options are turned off (also turned off ubuntu server 16.04)
Windows firewall settings
this is my host machine ip configuration (windows 10)
Host machine IP
this is my NatNetwork configuration in Virtualbox
NatNetwork configuration in Virtualbox
this is my port forwarding configuration in NatNetwork
Port Forwarding configuration
I want to mention that when I use 127.0.0.1 Ip address as a port forwarding HOST IP address. this is not working also, but I can ping from my host to 127.0.0.1 IP address.
this is my ubuntu_server 16.04 ip configuration
Ubuntu_server 16.04 IP configuration
When I ping from ubuntu_server to my HOST (from 172.31.0.4 to 192.168.0.110), I can ping
from VM to HOST ping
But I can't ping from HOST to VM (from 192.168.0.110 to 172.31.0.4), I get the request timed out.
enter image description here
So, I can't ping from HOST to VM, please help me solving this problem
I have a problem VM and HOST connection.
I have Centos7 VM built using vagrant with private IP address of:192.168.56.255
I am running my Spring boot application on that VM on port 8443. It supports HTTPS. My issue is that when try to send https requests to 192.168.56.255 web server via Curl command i got
curl: (7) Couldn't connect to server
I have read many tutorials that explain how to configure my Firewall in Cento7 but still got the same issue one is provided by DigitalOcean
When I type
sudo firewall-cmd --list-all-zones
I got
public
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh dhcpv6-client https http mysql
ports: 8443/tcp 3306/tcp
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
As you can see I enabled everything I need and more but still. I even shut down the Firewall but still the connection is refused from my host.
When I made the changes I did reload my firewall
sudo firewall-cmd --realod
So that is not the problem
The problem was not with the Firewalld but with the pre-configured IP address using Vagrant.
The IP address should not be 255 in the first byte as I did 192.168.56.255
because that indicates that this is a broadcast address. So i solved it by changing it to 192.168.56.10
I have a Windows Server 2016 TP5 machine that I use as a container host.
I have a Windows Container running that I manage with Docker. Inside this container I have an Apache httpd running on port 88.
The port mapping when I start the container is: 0.0.0.0:80->88/tcp, so I map port 80 of my container host to port 88 of the container.
This is the output from docker inspect: http://pastebin.com/AVem1eGV
I can now reach the Apache http start page from any other computer in the network through the DNS or IP.
In my case:
http://10.10.1.162/
http://documents.test2016-3.company.com/
But the same does not work when I try to call the same from the host system itself or from inside the container. So, on the host system, I try to access the same URL via browser or wget, and getting:
C:\> wget -UseBasicParsing http://documents.test2016-3.company.com/
wget : Unable to connect to the remote server
in both cases.
But I can ping the host from both the host itself as well as the container.
From the host:
C:\>ping test2016-3.company.com
Ping wird ausgeführt für TEST2016-3.company.com [fe80::847a:1430:8a10:b120%4] mit 32 Bytes Daten:
From the container:
PS C:\> ping documents.test2016-3.company.com
Pinging documents.test2016-3.company.com [10.10.1.162] with 32 bytes of data:
which seems to be able to resolve the name just fine.
What does work though is to call the Apache default page via the container hostname (which is win-de6u4068naf) and its running port directly (not through the port mapping), both from the host as well as inside the container:
http://win-de6u4068naf:88/
Just going the route through the container host hostname and mapped port from the host or container itself does not work properly!
Firewall rules allow everything on port 80 from any remote address or to port 80 (=inbound and outbound rules are both set to "allow" for "any").
I know that Microsoft/Docker changed the networking code base of the container/docker support from Windows Server 2016 TP4 to TP5. Not sure if that's related, or whether this is a bug or I'm having something not configured correctly yet.
I made a test and left Docker/Container out of the picture above and installed a plain Apache httpd itself on the container host system on port 80 (and no Docker running at all) just to check whether such setup works or not, in order to be sure that it is actually somehow Docker/Container related and not a problem with my network/host configuration in general. And this works fine, I can reach the Apache from outside as well as from the host itself, thus it must be a Docker/Container related problem.
Environment:
Windows Server 2016 TP5
Docker version 1.12.0-dev, build 2b97201
Got a reply on Microsoft's Github:
https://github.com/Microsoft/Virtualization-Documentation/issues/253#issuecomment-217975932
This is a known limitation in our Windows NAT implementation (WinNAT)
that you cannot access the external port in a static port mapping
directly from the container (NAT) host.
I'm using Boot2Docker to manage Docker containers in Windows and I have a container running an IBM Liberty server (I guess is the same for any other server), I can access the server home screen in the host machine using only the ip (which I get using the command boot2docker ip), but if I try to access the server using the https port, like this xx.xx.xx.xx:9443 the connection fails.
I tried forwarding the port in VirtualBox like this:
And then access the server using the ports 1000 or 1001, but it fails too.
Am I missing something?
BTW, I'm using default NAT connection.
https uses port 443 (not 9443) by default.
Make both "Host Port" and "Guest Port" 443 and try again.
I'm running werkzeug (as part of a Tilestache setup) inside a Vagrant VM, running ubuntu 'precise.'
In my Vagrantfile, I have:
config.vm.network :forwarded_port, guest: 8080, host: 8080
When I start the server in the VM, I see:
* Running on http://127.0.0.1:8080/
If I curl that address from within the VM, I get the expected result. When I curl it from the host machine, I get:
curl: (52) Empty reply from server
And Chrome says "No data received."
Troubleshooting info:
The server responds to pings from the host machine
a port sniffer verifies that the port is open
running netstat -ntlp | grep 8080 in the vm shows that the server is listening on 8080
My local hostsfile doesn't have any weird conflicts
I'm also forwarding 22 => 2222, and I can ssh in with no trouble
I've disabled the firewall on the host, and i don't believe there's one on the guest (iptables and ufw are disabled, at least)
I've set auto_correct: true in case there are conflicts (there aren't)
I know I could set up a private network, but I'd like to understand why this isn't working and how to troubleshoot it.
Any other ideas?
When running a server from within a VM, start the server on 0.0.0.0 instead of 127.0.0.1.
127.0.0.1 is only accessible to the local machine, which for a VM means nothing outside of the VM can reach it! 0.0.0.0 is accessible from anywhere on the local network, which to a VM includes the host machine.
The answer came from here: Connection Reset when port forwarding with Vagrant
(Which apparently got its answer from here: https://stackoverflow.com/a/5999945/738675)
With help from: https://serverfault.com/questions/78048/whats-the-difference-between-ip-address-0-0-0-0-and-127-0-0-1
Google-bait:
Here are the errors you might receive if this is the problem:
Chrome: "No data received"
Firefox: "The connection was reset - The connection to the server was reset while the page was loading."
Safari: "Safari can’t open the page [URL] because the server unexpectedly dropped the connection"
curl: "Empty reply from server"
In the /etc/hosts inside the VM, change line
127.0.0.1 localhost -> 0.0.0.0 localhost
and then restart server
This can also be a problem with your firewall on the vagrant machine. If you can curl the address while on the vagrant box, then check your firewalld settings or turn it off:
on CENTOS:
sudo service firewalld stop
Then you should update your firewalld settings and restart it ;)