Hello all,
last week I have upgraded to 1.26 - the latest version - kubeadm, kubelet, kubectl.
I didn’t read before that that there are some changes in kube-proxy 
I have elastic + kibana. There is no connection from every pod to the outside.
is there any way to fix this and how. I read about iptables but what exactly needs to be changed/removed/installed?
thank you
Cluster information:
Kubernetes version: v1.26.0
Cloud being used: bare-metal
Installation method: apt
Host OS: ubuntu 22.04 lts
CNI and version: 0.3.1
CRI and version: v1.6.15
errors from the pod:
Curl error (6): Couldn’t resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=AppStream&infra=container [Could not resolve host: mirrorlist.centos.org]
:[“warning”,“elasticsearch”],“pid”:7,“message”:“Unable to revive connection: http://elk.cloud.domain.com/”}
thank you