环境变量及免密登录

环境变量

# vim ~/.bashrc

# 别名
alias ll='ls -lh'
alias aws='ssh [email protected]'
alias ali='ssh [email protected]'
alias vultr='ssh [email protected]'
alias tencent='ssh [email protected]'
alias centos7='ssh [email protected]'
alias centos8='ssh [email protected]'

# 环境变量
export SOFT_HOME=/d/java
export JDK8_HOME=$SOFT_HOME/jdk1.8.0_191
export JDK11_HOME=$SOFT_HOME/jdk-11.0.4
export JDK12_HOME=$SOFT_HOME/jdk-12.0.2
export JDK13_HOME=$SOFT_HOME/jdk-13
export JAVA_HOME=$JDK8_HOME
export MAVEN_HOME=$SOFT_HOME/apache-maven-3.6.2
export PATH=$MAVEN_HOME/bin:$JAVA_HOME/bin:$PATH

 

免密登录

# 本机生成RSA密钥
ssh-kengen -t rsa

# 将公钥复制到远程机器
scp ~/.ssh/id_rsa.pub [email protected]:~/

# 登录远程机器将公钥加入受信任的文件中
ssh [email protected]
cat id_rsa.pub >> .ssh/authorized_keys