I have installed 4 ubuntu servers
on a virtual machine. same installation procedure where i set the proxy, domain, ip during the installation. it appears that 2 of the machine have no issues at all. both ping and apt-get. but for some unknown reason the other 2 can ping anything including security.ubuntu.com
and us.archive.ubuntu.com
but can't do sudo apt-get update
.
so all of them have the file /etc/apt/apt.conf
Acquire::http::Proxy "10.10.19.21";
What i've noticed here is that there is no port number for any of them.Even with that 2 servers still can update via apt-get
for now there is no http_proxy set in either /etc/environment
.
Can anyone help you? thank you.