linux
创建命令
mkdir -p 一次性创建层级目录** 一次创建多个目录 mkdir -p oa/web/files/
查看运维关机时间： last -x reboot
net无法联网：
查看运维关机时间： last -x reboot
本地host 文件位置：C:\Windows\System32\drivers\etc
ping 114.114.114.114
vi /etc/resolv.conf
nameserver 114.114.114.114
hosts
vi /etc/hosts
重启网络
/etc/init.d/network restart
jdk:
tar -zxvf jdk-8u241-linux-x64.tar.gz -C /usr/local/
/usr/liuyang/
tar -zcvf 文件名.tar.gz 要压缩文件路径
vi /etc/profile
JAVA_HOME=/usr/local/jdk1.8.0_241/
PATH=$JAVA_HOME/bin:$PATH
CLASSPATH=$JAVA_HOME/jre/lib/ext:$JAVA_HOME/lib/tools.jar
export PATH JAVA_HOME CLASSPATH
source /etc/profile
/usr/java/jdk1.8.0_241/
build-nginx：
find / -name nginx
rm -rf /var/log/nginx
rm -rf /usr/local/nginx
rm -rf /usr/local/nginx/nginx-1.12.1/objs/nginx
rm -rf /usr/local/nginx/sbin/nginx
清楚开机自启：
chkconfig nginx off
rm -rf /etc/init.d/nginx
安装：
yum install -y gcc
yum install -y pcre pcre-devel
yum install -y zlib zlib-devel
tar -zxvf nginx-1.12.1.tar.gz -C /usr/local
cd /usr/local/
mv nginx-1.12.1 /usr/local/nginx
cd /usr/local/nginx/
./configure --prefix=/usr/local/nginx
make
make install
mkdir -p /usr/local/nginx/logs/
touch /usr/local/nginx/logs/error.log
touch /usr/local/nginx/logs/access.log
加上ssh安装：
/usr/local/nginx/sbin/nginx -V
find / -name configure
./configure --prefix=/usr/local/nginx
./configure --with-http_ssl_module
yum -y install openssl openssl-devel
make
make install
cp /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak
cp ./objs/nginx /usr/local/nginx/sbin/
/usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.12.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --with-http_ssl_module
测试端口是否跳过去
build-mysql
yum -y install wget
wget -c http://
tar -zxvf mysql-5.7.31-linux-glibc2.12-x86_64.tar.gz -C /usr/local
yum install libaio -y
cd /usr/local/
mv mysql-5.7.31-linux-glibc2.12-x86_64 /usr/local/mysql
cd /usr/local/mysql/
mkdir /usr/local/mysql/data
mkdir /usr/local/mysql/etc
mkdir /usr/local/mysql/log
groupadd mysql
useradd -r -g mysql -s /sbin/nologin mysql
touch /usr/local/mysql/log/error.log
touch /usr/local/mysql/log/show.log
mkdir /var/log/mariadb
touch /var/log/mariadb/mariadb.log
chown -R mysql:mysql /var/log/mariadb/
vi /etc/my.cnf
chmod +x /usr/local/mysql/log/error.log
sudo chown -R mysql:mysql /usr/local/mysql
/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
mkdir /var/lib/mysql
chmod 777 /var/lib/mysql
/etc/init.d/mysqld start
tailf /usr/local/mysql/log/error.log
netstat -ntlp mysql
ps aux|grep mysql
【my.cnf】
[mysqld]
port=3306
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
max_connections= 100
default-storage-engine= InnoDB
character-set-server=utf8
log-error= /usr/local/mysql/log/error.log
slow_query_log= 1
long-query-time= 30
slow_query_log_file= /usr/local/mysql/log/show.log
min_examined_row_limit= 1000
log-slow-slave-statements
log-queries-not-using-indexes
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid
!includedir /etc/my.cnf.d
#mysql -u root -p返回-bash: mysql: 未找到命令
两种方式可以都去试一下
ln -s /usr/local/mysql/bin/mysql /usr/bin
ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
加远程权限：
use mysql;
select User,authentication_string,Host from user;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '你的密码'
flush privileges;
gza：
use mysql;
ALTER USER USER() IDENTIFIED BY ‘assets123456';
select User,authentication_string,Host from user;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '!Ps123456'
flush privileges;
所有的前提都是需要把防火墙关掉
为远程加上权限密码和本地一致
修改默认（本地密码）
通讯录
ALTER USER USER() IDENTIFIED BY 'root';
feedback密码：
ALTER USER USER() IDENTIFIED BY 'hengtian';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'hengtian'
忘记密码：
update user set authentication_string="8OP7glVfAmLyiX89" where user = "root"; 在mysql8.0 的时候只识别 双引号
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '8OP7glVfAmLyiX89'
flush privileges;
assets EDV
select User,authentication_string,Host from user;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'assets123456'
flush privileges;
数据库启动**：/etc/init.d/mysqld start
数据库关闭：/etc/init.d/mysqld start
数据库重启 ；/etc/init.d/mysqld restart
chown -R mysql:mysql /usr/local/mysql/data/
chmod -R 755 /usr/local/mysql/data
跳过密码权限：
skip-networking
skip-grant-tables
use mysql;
UPDATE user SET `password_expired`='N' where user='root'; *##将密码过期修改为 密码不过期；*
select * from mysql.user where user='root' \G; *#查看数据*
UPDATE user SET `authentication_string` = PASSWORD("assets123456"); *##修改密码；*
flush privileges;
两个问题：
list 页面无法找到， 问题是 null 匹配
修改vi .etc/mycnf sql_mode=
修改前段页面访问工作流路径
ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
build-redis:
requirepass appendonly yes修改配置文件：
redis-server redis.conf & 指定配置文件启动
gza:/usr/local/redis/redis.conf
bin /usr/local/redis/bin/
/usr/local/redis/src/redis-server 所在位置
./usr/local/redis/src/redis-server /usr/local/redis/redis.conf
/usr/local/redis/redis.conf
修改：
daemonize
requirepass 设置密码
tar -zvxf /usr/liuyang/redis-5.0.8.tar.gz -C /usr/local/redis
yum install gcc-c++
cd /usr/local/redis/redis-5.0.8
make
make install
cp /usr/local/redis/redis-5.0.8/redis.conf /usr/local/bin
cd /usr/local/bin
ll -a
vi redis.conf
kill -9 $(ps -ef|grep redis | awk '{print $2}')
/usr/local/bin/redis-server /usr/local/bin/
band *