Avaya Business Secure Router 252 Configuration - Basics Manual de usuario descargar pdf (Pagina 287)

Chapter 14 Certificates 287

Nortel Business Secure Router 252 Configuration — Basics

Verifying a certificate of a trusted remote host

Certificates issued by certification authorities have the signature of the

certification authority for you to check. Self-signed certificates only have the

signature of the host itself. This means that you must be very careful when

deciding to import (and thereby trust) the self-signed certificate of a remote host.

Trusted remote host certificate fingerprints

Certificate fingerprints are message digests calculated using the MD5 or SHA1

algorithms. The following procedure describes how to use a certificate fingerprint

to verify that you have the remote host’s actual certificate.

1 Browse to where you have the remote host’s certificate saved on your

computer.

Valid From This field displays the date that the certificate becomes applicable. The

text displays in red and includes a Not Yet Valid! message if the

certificate has not yet become applicable.

Valid To This field displays the date that the certificate expires. The text displays

in red and includes an Expiring! or Expired! message if the certificate is

about to expire or has already expired.

Modify Click the details icon to open a screen with an in-depth list of

information about the certificate.

Click the delete icon to remove the certificate. A window displays asking

you to confirm that you want to delete the certificate. Note that

subsequent certificates move up by one when you take this action. You

cannot delete a certificate that is currently in use.

Import Click Import to open a screen where you can save the certificate of a

remote host (which you trust) from your computer to the Business

Secure Router.

Refresh Click this button to display the current validity status of the certificates.

Table 71 Trusted Remote Hosts

Label Description

1 2 ... 282 283 284 285 286 287 288 289 290 291 292 ... 459 460

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Avaya Business Secure Router 252 Configuration - Basics Manual de usuario Pagina 287