$ apt-get clean && apt-get update && apt-get upgrade
Hit:1 http://gplnxapp01.nebraskamed.com/ubuntu focal InRelease
Hit:2 http://gplnxapp01.nebraskamed.com/ubuntu focal-updates InRelease
Hit:3 http://gplnxapp01.nebraskamed.com/ubuntu focal-backports InRelease
Hit:4 http://gplnxapp01.nebraskamed.com/ubuntu focal-security InRelease
Err:5 http://archive.lambdalabs.com/ubuntu focal InRelease
Connection failed [IP: 52.218.152.130 80]
Err:6 http://archive.ubuntu.com/ubuntu focal InRelease
Connection failed [IP: 185.125.190.36 80]
Reading package lists... Done
W: Failed to fetch http://archive.lambdalabs.com/ubuntu/dists/focal/InRelease Connection failed [IP: 52.218.152.130 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease Connection failed [IP: 185.125.190.36 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
