Can I use egress network policy without giving any port.
Though in my db connection I have specified a port.
So will it allow me to connect to ip without giving any port in egress.
Related
I have a docker container that runs a TCP server which is attached to a custom docker network that I have set up. The container is exposed with an external port mapping.
There is also a TCP client outside the container that is trying to access the TCP server through the exposed port. The TCP client binds to a specific source port, say 5000.
My problem is that due to the docker network SNAT, the container running on docker sees the remote port as one that is generated by the network gateway (say 6000), rather than the original source port (5000).
Is there a way to modify the network behavior so it doesn't apply SNAT for these external connections?
I have an ASP.Net MVC project that is running under IIS. I can reach it using local IP and port. I bind it with my IP and port.
What should I do to reach it with my public IP and port like http://PUBLICIP:PORT
When I try to reach it says connection error with code 502.
This is what I tried so far.
Adding my local IP to router's DMZ Adding
Port forwarding with port and my local IP
Add inbound and outbound rules to Firewall, inbound rules allow edge
traversal.
Turning off firewall, windows defender etc.
Do I need any features to install when I try to reach IIS externally?
Thanks all.
I'm trying to establish a connection with a diameter server. That server has a restriction parameter of "peer port"
Which means source port of my outgoing traffic should be restricted to a specific port.
Since I'm using an erlang diameter client, I didn't find any parameter to specify the outgoing port. It will initiate the connection with a random port to the destination ip:port.
Is there a way to translate my outgoing traffic to that ip locally to a specific port from linux?, so that the external server will see my source port as the allowed port.
You should apply a NAT at the sender side. Read this thread, it explains how to do it with iptables.
I have a docker container with an apache server on port 80. Port 8000 of the docker host is being forwarded to 80 in the container. Our application needs to connect to itself to use a web service. This connection URL is determined at runtime based on the URL the user is using to access the application. However, when it tries to connect to the host's IP address on port 8000, connection fails. Debugging with telnet and tracepath indicate routing error. Any hints?
The likely root cause here, is you're listening on the wrong interface in your container.
If you bind localhost:80 then you cannot access that using "publish". You need to bind 0.0.0.0:80 (or *:80 or whatever your config supports) and then it'll work.
Fixed. Turns out issue was that there was no firewall rule on the host allowing for access to the published port from the inside network.
I cannot reach the Server using the IP-Adress, but if I use the FQDN or the hostname itself, the connection can be established.
My Firewalls are all disabled.
Which reasons could lead to this result?