#ǰû̴򿪵ļ
ulimit -n

#޸
ulimit -n 20000

#޸LinuxϵͳûĹڴļƺӲ
һ޸/etc/security/limits.confļļУ
speng soft nofile 10240
speng hard nofile 10240
spengָҪ޸ĸûĴļƣ'*'űʾ޸ûƣsofthardָҪ޸ƻӲƣ10240ָҪ޸ĵµֵļ(עֵҪСڻӲ)

鿴Linuxϵͳļƣʹ
cat /proc/sys/fs/file-max

ڶ޸/etc/pam.d/loginļļУ
session required /lib/security/pam_limits.so
ǸLinuxûϵͳ¼Ӧõpam_limits.soģϵͳԸûʹõĸԴ(ûɴ򿪵ļ)pam_limits.soģͻ/etc/security/limits.confļжȡЩֵ޸󱣴ļ

鿴Linuxϵͳļƣʹ
cat /proc/sys/fs/file-max
޸ĴӲƵķ޸/etc/rc.localűڽűУ

echo 22158 > /proc/sys/fs/file-max


ں˱ʱĬõıض˿ںŷΧ̫СҪ޸Ĵ˱ض˿ڷΧơ

һ޸/etc/sysctl.confļļУ

net.ipv4.ip_local_port_range = 1024 65000

ϵͳԱض˿ڷΧΪ1024~65000֮䡣ע⣬ض˿ڷΧСֵڻ1024;˿ڷΧֵӦСڻ65535.޸󱣴ļ

ڶִsysctl

[speng@as4 ~]$ sysctl -p

ϵͳûдʾͱµıض˿ڷΧóɹ˿ڷΧãϵһͬʱ60000TCPͻӡ


#ʱͬ
ntpdate  ntp.api.bzNTP(Ϻ) 

#޸ʱΪϺ
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime 