Linux Basic optimization

[[email protected] oldboy]# for Oldboy in ' chkconfig--list |grep ' 3:on ' |awk ' {print '} ' |grep-ve ' Crond|network|sshd|r Syslog "';d o chkconfig $oldboy off;done

[Email protected] oldboy]# chkconfig--list |grep "3:on"

Crond 0:off 1:off 2:on 3:on 4:on 5:on 6:off

Network 0:off 1:off 2:on 3:on 4:on 5:on 6:off

Rsyslog 0:off 1:off 2:on 3:on 4:on 5:on 6:off

sshd 0:off 1:off 2:on 3:on 4:on 5:on 6:off

The idea is to find out the open services, remove the need, and then shut down the rest.

Create a Oldboy command in the Oldboy directory and then add it to the system environment to execute

[Email protected]/]# chmod +x/oldboy/oldboy

[Email protected]/]# echo ' path= "/oldboy/: $PATH" ' >>/etc/profile

[Email protected]/]# Source/etc/profile

Root User Global Effective/etc/profile

Normal user ~/.bash_profile or ~/.BASHRC

Linux Chinese settings

[Email protected] ~]# cat/etc/sysconfig/i18n

Lang= "ZH_CN. GB18030 "

Linux system time synchronization

[Email protected] oldboy]#/usr/sbin/ntpdate time.nist.gov

The file descriptor increases the space in which the process runs, or the process does not come up with a small space

View size [[email protected] oldboy]# ulimit-n

[Email protected] oldboy]# vi/etc/security/limits.conf

Add the following *-Nofile 65535

[Email protected] oldboy]# source/etc/security/limits.conf

And then quit logging back in.

Linux Basic optimization