I was having the same issue, then I find that the default value in Adminer application for server address is ‘db’, which doesn’t match with the service name for my MySQL container.
Yes, the Alpine images are known to be problematic in Kubernetes cluster concerning DNS queries. Even if it is not clear if the bug has been effectively fixed in any current version of Alpine, here are some related links: https://github.com/kubernetes-sigs/kind/issues/442 https://gitlab.alpinelinux.org/alpine/aports/-/issues/9017 https://github.com/gliderlabs/docker-alpine/issues/476 I encountered this problem on my side in my Kubernetes clusters as of … Read more
PROBLEM Talking to some developers at #docker@freenode, the problem was clear to everyone: DNS and the environment. The build works just fine at a regular Internet connection at home. SOLUTION: This problem occurs in an environment that has a private DNS server, or the network blocks the Google’s DNS servers. Even if the docker container … Read more
The following TXT record works for me: v=spf1 include:_spf.google.com ~all
Unfortunately the standard DNS A-record (domain name to IP address) used by web-browsers to locate web-servers does not include a port number. Web-browsers use the URL protocol prefix (http://) to determine the port number (http = 80, https = 443, ftp = 21, etc.) unless the port number is specifically typed in the URL (for … Read more
As a reference: http://sourceforge.net/projects/acrylic/ Acrylic is a local DNS proxy which improves the performance of your computer by caching the responses coming from your DNS servers. I found it to work flawless on every Windows system from XP up to Win8, and it’s open source. And yes, it supports wildcards… it even supports regex for … Read more
The domain company that you talked to may have done a poor job of explaining how domains work. Domain names don’t refer to specific ports. They just refer to IP addresses. The client can look up a hostname to get the IP address which the client should connect to, but the client has to figure … Read more