A server stack is the collection of software that forms the operational infrastructure on a given machine. In a computing context, a stack is an ordered pile. A server stack is one type of solution stack — an ordered selection of software that makes it possible to complete a particular task. Like in this post about Ethernet (wired connection) is Unreachable in Ubuntu 20.04 was one problem in server stack that need for a solution. Below are some tips in manage your linux server when you find problem about linux, ubuntu, ssh, ubuntu-20.04, .
I have Ubuntu server where I have configured the static IP it was pinging and able to update and use internet and able to connect through ssh. but after the shutdown because of power failure. I was not able to ping and unable to use ssh.
When I enter command
ip addr show it doesn’t show the configured ip address
$ ip addr show eth0 eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000 link/ether 3c:97:0e:11:22:0d brd ff:ff:ff:ff:ff:ff
NO-CARRIER means there is no physical connection.