Aktifkan login root SSH di Server Linux Debian

Setelah instalasi sistem baru, login root pada Debian Linux dinonaktifkan secara default. Saat Anda mencoba masuk sebagai pengguna root ke server Debian Jessie Linux Anda, aksesnya akan ditolak, mis.:

$ ssh [email protected]
[email protected]'s password: 
Permission denied, please try again.
[email protected]'s password: 
Permission denied, please try again.
[email protected]'s password: 
Permission denied (publickey,password).

Untuk mengaktifkan login SSH untuk pengguna root pada sistem Linux Debian, Anda harus terlebih dahulu mengkonfigurasi server SSH. Buka /etc/ssh/sshd_config dan ubah baris berikut:

FROM:
PermitRootLogin without-password
TO:
PermitRootLogin yes

Setelah Anda melakukan perubahan di atas, mulai ulang server SSH Anda:

# /etc/init.d/ssh restart
[ ok ] Restarting ssh (via systemctl): ssh.service.

Mulai sekarang Anda akan dapat login ssh sebagai root:

$ ssh [email protected]
[email protected]'s password: 

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

Panduan berikut akan memberi Anda informasi tentang cara mengaktifkan login root SSH di Ubuntu 16.04 Xenial Xerus Linux Server/Desktop.