[root@localhost]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: SHA256:rHLydfgdfgdfgcvbcvbcvbG3GM9tosDSERPfsEW8 root@ct-dev-01 The key's randomart image is: +---[RSA 2048]----+ |^/o. . | |*=@=o o | |.*+*o+ E | |+.+ o o. | |+o. . S | |+. . | |.. o.o. | | . .=. . | | .o .. | +----[SHA256]-----+
В результате выполнения команды сгенерировалось 2 файла в каталоге ~/.ssh/
- id_rsa.pub — публичный ключ
- id_rsa — секретный ключ
Копируем наш публичный ключ на сервер, к которому мы будем подключаться без ввода пароля, вместо XXX IP
[root@localhost]# ssh-copy-id root@XXX.XXX.XXX.XXX /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub" /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys root@XXX.XXX.XXX.XXX's password: Number of key(s) added: 1 Now try logging into the machine, with: "ssh 'root@XXX.XXX.XXX.XXX'" and check to make sure that only the key(s) you wanted were added.
Проверяем
Или sshpass
yum install sshpass
Заходим на ssh-сервер с именем server.example.com с паролем t@uyM59bQ
sshpass -p 't@uyM59bQ' ssh username@server.example.com
Заходим на ssh-сервер с именем server.example.com с паролем t@uyM59bQ отключая проверку ключа на хосте
sshpass -p 't@uyM59bQ' ssh -o StrictHostKeyChecking=no username@server.example.com
Скачиваем директорию с файлами
/usr/bin/sshpass -p '!@hrkUU50Tt' scp -r username@ssh.host.ru:/home/host/host.ru /FILEDUMP/BackUP/