Avaya BSGX4e User's Guide download pdf (Page 402)

402 BSGX4e Business Gateway User Guide

NN47928-102 Release 01.01

 You cannot set the SSH server to run on a port in use by another TCP service, such

as Telnet or HTTP.

 The SSH server can be enabled or disabled.

 Current SSH client connections are not dropped when the SSH port is changed or

the SSH server is stopped.

SFTP

SFTP provides secure file transfer between an SFTP client and the BSGX4e. This

enables the secure upload of binary applications to the BSGX4e file system.

Users with administrator rights are allowed to upload and download public key files

through SFTP. The file name of a user's public key is

/cf0sys/id_<username>.pub.

If the SSH client requests the SFTP service, the SFTP server gives the user the

following file access permissions:

 Full read-write access to the /cf0usr file system volume.

 For users with full administrator rights, access to the /cf0sys volume.

Authentication

After a secure method of data transport between an SSH client and the SSH server is

established, and the server identifies itself through its host keys, a client can

attempt authentication.

The SSH server supports password, keyboard-interactive, and public-key

authentication. The SSH server configuration determines which authentication

methods it offers to clients:

 Password Authentication

Password authentication is requested on the client side and then sent to the SSH

server. The user is prompted with the following:

n User:

n Password:

 Keyboard-Interactive Authentication

Using keyboard-interactive authentication, the following prompts appear:

n User:

n Password:

 Public Key Authentication

Public key authentication requires that the user upload a public key file from the

SSH client to the BSGX4e. Users with administrator rights can upload and

download public key files through SFTP. The file name of a user's public key is:

/cf0sys/id_<username>.pub.

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Avaya BSGX4e User's Guide Page 402