System operation and maintenance engineers, operation and maintenance engineers now broadly divided into the desktop operation and maintenance ---> System operation and maintenance ---> development operation and maintenance ---> System Architect aspects
As a systems operation and maintenance engineers, master some basic commands required:
(1) vi command is necessary because the server is shipped with Victoria remote login, no GUI (graphical user interface building tool), vi can also be implemented to minimize installation, saving use of resources
(2) be familiar with windows and Linux connectivity tools, such as (winscp, vnc)
(3) have some knowledge of shell scripting
(4) jenkins principle: jenkins configured code path (SVN or GIT), then pull the code, playing tag. We need to compile the compiler, pushed to the publisher after compilation (jenkins which can be adjusted script), and then distributed from the distribution server down to the business server.
(5) keepalived advantages:lvs keepalived load scheduler implementation of hot standby switching, increase availability, the server node cell by health check , automatically remove the failed node, the recovery and re-added.