Knowledge = "skills need a lot of exercise is equivalent to re-set
There must be a sense of accomplishment
Digging in a field, and then migrate to other areas
1, two weeks after knowledge retention:
Active Learning:
Hands: 40%
Repeat it: 70%
Write blog: is writing a tutorial, to facilitate later review (to be completed)
5W+1H（what， why， when， where，who， How）
Passive learning:
Lectures: 10%
Note: 20%
2, Linux system operation and maintenance courses
Getting Started with Linux
Linux System Administration
Linux services and Security Management:
httpd，lamp，lnmp
Cache：memcached，varnish
DB:mysql (MariaDB)
Linux Cluster
LB Cluster：Nginx，LVS
HA Cluster： Keepalived
Linux Ops：ansible
Monitoring：zabbix
Shell Scripting
httpd:
tomato, lnmt, lame, session replication Cluster
Distributed storage system:
MogileFS, GlusterFS
ＬＢ Ｃｌｕｓｔｅｒ： ｈａｐｒｏｘｙ
HACluster： Corosync+ Pacemaker
MySQL: HACluster, NHA, backup and recovery, MySQL replication
ＮｏＳＱＬ：ｒｅｄｉｓ， ｍｏｎｇｏｄｂ， Ｈｂａｓｅ
Operation and maintenance tools: puppet (saltstack), cobbler
Virtualization:
Linux operating system principles: the principle of virtualization technology
Detailed KVM virtualization applications:
Virtualized network: SDN
openstack Cloud Stack
Docker: cloud container
ＥＬＫ Ｓｔａｃｋ： ＥｌａｓｔｉｃＳｅａｒｃｈ， Ｌｏｇｓｔａｓｈ，Ｋｉｂａｎａ
Big data: Hadoop v2, parallel storage and analysis platform
ＨＢａｓｅ，Ｈｉｖｅ
Ｓｔｏｒｍ，Ｓｐａｒｋ
System Optimization:
Python Programming
3, the learning phase:
We will never be ready, fully ready only
Classroom learning: 4 months
Work study: 8 months, are not required to pay too much, we must help the career development
4, IT technology fields
R & D:
Hardware: Machine Language
software:
Low-level language: write drive, assembly language
High-level language:
System level: C, C ++
Application level: Java, Python
application:
LInux operation and maintenance
Shell Scripting:
Ｐｙｔｈｏｎ： ａｎｓｉｂｌｅ，ｏｐｅｎｓｔａｃｋ
ＤｅｖＯｐｓ： Ｄｅｖｅｌｏｐｍｅｎｔ Ｏｐｅｒａｔｉｏｎｓ