Linux Networking

ip (linux cli tool)

Yabs Error: "Warning: Both IPv4 AND IPv6 connectivity were not detected. Check for DNS issues..." Or if curl is not working on anything

Check /etc/resolve.conf

vi /etc/resolve.conf

Should look like this:

# Generated by NetworkManager

Change Hostname

hostnamectl set-hostname NAME

Proxmox Default Settings

when managing bare metal server, address, subnet mask and gateway should be in the provider's panel somewhere (hopefully), replace the ip numbers accordingly

auto lo
iface lo inet loopback

iface eno1 inet manual

auto vmbr0
iface vmbr0 inet static
	# OR to omit the netmask
	# this ^^^, calculate the /24 part from the subnet mask
	bridge_ports eno1
	bridge_stp off
	bridge_fd 0

Almalinux networking

nmcli and nmtui

Proxmox not connecting or pinging public IPs

if all else fails, there may be a ip conflict, which requires a restart of the datacenter node, as restarting the VM will not fix ip conflicts (from what I've known). I tested this by restarting the datacenter after trying to give a static IP which was given to a different VM, I then tried assigning a static IP that's never been used to a completely new VM and ping(ing) yielded results.