With my new ubuntu 18.04 installation the machine is using my local WiFi LAN, and in most cases it is working fine. I can use a browser to the outside world, as well as email, and other internet services.
What I can not figure out or find an answer to is the connection that I had in 16.xx to the other machines on my network. I have this machine set up as an NFS server sharing an external drive for back ups. None of the other machines on the network can mount that share. Additionally, if I try to ping the 18.04 machine the ping just hangs and times out. If I try to ping any of the other machines on the network from the 18.04 machine the result is: Destination Host Unreachable.
Oct 9 09:41:20 XXXXmyServer kernel: [ 21.519885] audit: type=1400 audit(1539092479.510:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=698 comm="apparmor_parser"
in my kern.log file.
What else should I check/report?
sudo ufw status Status: inactive
Also: sudo iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination
Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination