CentOS 环境安装所需命令
防火墙firewalld
systemctl start firewalld
systemctl enable firewalld
firewall-cmd --zone=public --add-port=80/tcp --permanent （--permanent永久生效，没有此参数重启后失效）
firewall-cmd --zone=public --remove-port=234/tcp --permanent
firewall-cmd --reload
firewall-cmd --query-port=80/tcp
firewall-cmd --zone=public --list-ports
firewall-cmd --add-forward-port=port=80:proto=tcp:toport=8080
即查看分配网卡情况
ip addr
编辑sudo文件
visudo
vim替换
%s/\/dev\//\/prod\//gc /dev/ 替换为 /prod/
ssh日志
/var/log/secure
添加用户
useradd ${name} -m -U
chmod -v u+w /etc/sudoers
vim /etc/sudoers
ALL=(ALL) ALL
chmod -v u-w /etc/sudoers
ssh开通
vim /etc/ssh/ssh_config
port 22
PubkeyAuthentication yes
PermitRootLogin no
PasswordAuthentication no
ListenAddress 0.0.0.0
ListenAddress ::
ps -e | grep sshd
netstat -an | grep 324
cd /home/user/
chmod 700 .ssh
cd.ssh
chmod 600 authorized_keys
seLinux
semanage port -l|grep ssh
semanage port -a -t ssh_port_t -p tcp 324
openresty
wget https://openresty.org/package/centos/openresty.repo
sudo mv openresty.repo /etc/yum.repos.d/
sudo yum check-update
sudo yum install openresty
vim ~/.bash_profile
export PATH=/usr/local/openresty/bin:$PATH
sudo vim /etc/sysctl.conf
sudo sysctl -p /etc/sysctl.conf
net.ipv4.ip_forward = 1
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080
jenkins
nohup java -jar jenkins.war --httpPort=9090 --httpListenAddress=127.0.0.1 --enable-future-java >> /home/sai/logs/jenkins/log &
mysql
sudo yum install mysql80-community-release-el8-1.noarch.rpm
yum repolist enabled | grep "mysql.*-community.*"
yum repolist all | grep mysql
sudo yum-config-manager --disable mysql57-community
sudo yum-config-manager --enable mysql80-community
sudo dnf config-manager --disable mysql57-community
sudo dnf config-manager --enable mysql80-community
yum repolist enabled | grep mysql
(EL8 systems only)sudo yum module disable mysql
sudo yum install mysql-community-server
systemctl start mysqld
systemctl status mysqld
sudo grep 'temporary password' /var/log/mysqld.log
mysql -uroot -p
ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';
