SSH (Secure Shell) digunakan untuk login ke komputer lain yang terhubung dalam jaringan, pada umumnya dia ada di port 22, penggunaanya adalah sebagai berikut:

server:~# ssh [email protected]

[email protected]'s password:

Last login: Thu Jun 12 18:57:20 2008 from 192.168.1.1

Linux ironhide 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686
The programs included with the BlankOn system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright.
BlankOn comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law.

Linux ironhide 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686
The programs included with the BlankOn system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright.
BlankOn comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law.

ironhide:~#

terus bagaimana kalo saya pengen login ke ironhide.immteknik.org tanpa kata kunci? cukup mudah sekali apabila anda ingin menghemat waktu, bayangkan bila kata kunci nya puanjang? wew lama bangetz: caranya seperti ini:

  1. buat kunci ssh di sisi server

    ssh-keygen -t dsa

  2. simpan sebagai id_dsa

  3. salin berkas id_dsa ke komputer target (misal nya di /tmp

    scp .-r ssh/id_dsa.pub [email protected]:/tmp

  4. kemudian login di komputer target

  5. buka berkas tersebut

    ironhide:/tmp # cat id_dsa.pub » ~/.ssh/authorized_keys

  6. log out dari target, dan coba login lagi dari server

    server:~# ssh [email protected] Last login: Thu Jun 12 19:13:40 2008 from 192.168.1.1 Linux ironhide 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686

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

    BlankOn comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. Linux ironhide 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686

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

    BlankOn comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. ironhide:~#

tanpa ada kata kunci bukan?