systemctl list-unit-files|grep firewalld
firewalld.service enabled
systemctl stop firewalld.service
systemctl disable firewalld.service
修改 sysctl.conf 文件及 limits.conf 文件:
a. 修改 sysctl.conf
vi /etc/sysctl.conf
net.ipv4.ip_local_port_range = 9000 65500
net.ipv4.tcp_rmem = 4096 87380 4194304
net.ipv4.tcp_wmem = 4096 16384 4194304
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 4294967295
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
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