CHAPTER 9. SECUR
I
TY
9.1.1 SSH key authentication
By default, anonymous users have full access over FTP, SFTP and rsync to the
fi
les logged on
the AsteRx SB Sx . FTP, SFTP and rsync access can be limited by con
fi
guring user access, as
described in Section 9.1. For added security, user authentication for SFTP and rsync access
can be con
fi
gured using an SSH public key. When an SSH key is de
fi
ned, the con
fi
gured user
can download
fi
les using SFTP or rsync without entering a password provided of course, that
the matching private key is known by the key agent running on the same PC.
You can generate public and private keys using for example,
PuTTY Key Generator
as shown
in Figure 9-4.
Figure 9-4:
Generating SSH keys using the PuTTY Key Generator. The public key is
highlighted.
The generated public key is the highlighted text that can be pasted directly into the
SSH Key
fi
eld of the AsteRx SB Sx Web
I
nterface as shown in Figure 9-5.
Figure 9-5:
Using an SSH Key for access for user George
521-bit ECSDA keys o
ff
er the best security however, ECSDA 256 and 384-bit keys can also be
used. Alternatively, RSA 512 and 1024 key encryption is also supported.
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Summary of Contents for AsteRx SB Sx
Page 1: ...AsteRx SB Sx User Manual ...
