Table of Contents

Docker Troubleshooting
- Network reachability
  - Docker Service not reachable from outside the docker host
  - Netshoot

Docker Troubleshooting

Network reachability

Docker Service not reachable from outside the docker host

Check, if packets reach host
Check, if container is reachable from docker-host
Check ip-forwarding (sysctl net.ipv4.ip_forward)
Check iptables NAT & access rules
Check return route in container

Netshoot

Repository Image

Basic Usage

Start Container with Network Namespace of a running container

docker run -it --net container:<container_name> nicolaka/netshoot

Start Container with Host Network Namespace

docker run -it --net host nicolaka/netshoot

kb, linux, docker