/ Etc / sysconfig / netwprk-scripts / ifcfg-eth0 NIC configuration file
Configuring DNS /etc/resolv.conf
/ Etc / sysconfig / network hostname configuration file
Analytical relations / etc / hosts ip address and domain name
/ Etc / fstab to automatically mount the boot configuration file
Configuration file /etc/rc.local boot from the start of the software / services / command
Run-level configuration file / etc / inittab boot
/etc/init.d Service Management Command
/ Etc / profile system environment variable aliases
/ Etc / bashrc alias
The default location / usr / local compile and install software
/usr/share
/ Var / log / message system default log
/ Var / log / secure linux system, user login information (what time who landed from which success)
/ Proc / meminfo memory information free -h
/ Proc / cpuinfo to see cpu information == lscpu
/ Load information proc / loadavg system
/ Proc / mounts mounting information display system