centos中ssh免密互信

centos中ssh免密互信

yum install sshpass -y
###免密登录
ssh-keygen -t rsa -q -N "" -f ~/.ssh/id_rsa
sshpass -pvagrant ssh-copy-id -o StrictHostKeyChecking=no root@192.168.56.100 &> /dev/null
sshpass -pvagrant ssh-copy-id -o StrictHostKeyChecking=no root@192.168.56.101 &> /dev/null
sshpass -pvagrant ssh-copy-id -o StrictHostKeyChecking=no root@192.168.56.102 &> /dev/null
这样只是实现了100能免密登录101和102,并不能实现101免密登录102

docker安装pg

docker run --name postgres \
    --restart=always \
    -e POSTGRES_PASSWORD=postgres \
    -p 5432:5432 \
    -v /postgres/data:/var/lib/postgresql/data \
    -d postgres:14.2