Untuk masuk ke server RHEL7 Linux, pertama-tama kita perlu menukar kunci publik antara server dan mesin klien. Untuk melakukan itu kita dapat menggunakan ssh-copy-id memerintah.
$ ssh-copy-id user@rhel-server The authenticity of host 'rhel-server (rhel-server)' can't be established. ECDSA key fingerprint is 21:4d:71:f6:ef:1f:c1:f7:a9:d9:81:4d:9d:34:4d:a9. Are you sure you want to continue connecting (yes/no)? yes /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 user@rhel-server's password: Number of key(s) added: 1 Now try logging into the machine, with: "ssh 'user@rhel-server'" and check to make sure that only the key(s) you wanted were added.
Perintah di atas akan mendukung Anda untuk kata sandi berdasarkan akses Anda ke server jauh akan diautentikasi dan kata sandi ditukar. Jika Anda mendapatkan pesan kesalahan yang mengatakan:
/usr/bin/ssh-copy-id: ERROR: No identities found
Anda harus terlebih dahulu membuat kunci ssh Anda menggunakan perintah di bawah ini:
$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/user/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/user/.ssh/id_rsa. Your public key has been saved in /home/user/.ssh/id_rsa.pub. The key fingerprint is: 2a:2b:8b:c3:10:2c:0e:8a:7e:bf:0d:2c:fa:31:dc:99 [email protected] The key's randomart image is: +--[ RSA 2048]----+ | | | | |. | |+. | |*. S | |+.. o o. | |+ =.E. | |.+o.+oo | |.o++oo.. | +-----------------+
Setelah selesai coba ke ssh-copy-id di atas perintah lagi.