在邮件安全设备上续订证书

简介

本文档介绍如何在思科邮件安全设备(ESA)上续订过期证书。

在ESA上续订证书

如果您的ESA上有过期的证书（或即将过期的证书），您只需更新当前证书：

1. 下载证书签名请求(CSR)文件。
   
   
2. 将CSR文件提供给您的证书颁发机构(CA)并请求隐私增强型邮件(PEM)(X.509)签名证书。
   
   
3. 通过以下各节介绍的方法之一更新当前证书。

通过GUI更新证书

注意：这些步骤假设证书已创建、提交并提交到ESA配置。如果创建新证书，请务必在下载CSR之前提交并提交以将证书保存到设备。  

要开始，请从设备GUI导航至Network > Certificates。打开证书，并通过下一个映像中显示的链接下载CSR文件。如果ESA是集群的成员，则必须验证其他集群成员证书并对每台计算机使用相同的方法。使用此方法，私钥保留在ESA上。最后一步是让CA签名证书。

示例如下：

1. 将CSR文件下载到本地计算机，如上一映像所示。
   
   
2. 将CSR文件提供给您的CA并请求X.509格式的证书。
   
   
3. 收到PEM文件后，通过Upload Signed Certificate部分导入证书。此外，请在可选部分上传中间证书(如果可用)。
   
   
4. 提交并提交更改。
   
   
5. 返回到主Certificates页面(Network > Certificates from the GUI)。
   
   
6. 验证是否显示新的到期日期，以及证书显示为VALID/ACTIVE。
   
   
7. 提交并提交更改。

通过CLI更新证书

您还可以通过CLI更新证书。此方法可能更直观，因为提示采用问题/答案格式。

示例如下：

myexample.com> certconfig


Choose the operation you want to perform:
- CERTIFICATE - Import, Create a request, Edit or Remove Certificate Profiles
- CERTAUTHORITY - Manage System and Customized Authorities
- CRL - Manage Certificate Revocation Lists
[]> certificate

List of Certificates
Name       Common Name           Issued By             Status         Remaining
---------  --------------------  --------------------  -------------  ---------
tarheel.r  myexample.com         myexample.com         Active          327 days
test       test                  test                  Valid          3248 days
Demo       Cisco Appliance Demo  Cisco Appliance Demo  Active         1570 days

Choose the operation you want to perform:
- IMPORT - Import a certificate from a local PKCS#12 file
- PASTE - Paste a certificate into the CLI
- NEW - Create a self-signed certificate and CSR
- EDIT - Update certificate or view the signing request
- EXPORT - Export a certificate
- DELETE - Remove a certificate
- PRINT - View certificates assigned to services
[]> edit

1. [myexample.com] C=US,CN=myexample.com,L=RTP,O=Cisco Inc.,ST=NC,OU=TAC
2. [test] C=US,CN=test,L=yanceyville,O=test,ST=NC,OU=another test

Select the certificate profile you wish to edit:
[]> 1

Would you like to update the existing public certificate? [N]> y

Paste public certificate in PEM format (end with '.'):
-----BEGIN CERTIFICATE-----
FR3XlVd6h3cMPWNgHAeWGYlcMKMr5n2M3L9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-----END CERTIFICATE-----
.
C=US,CN=myexample.com,L=RTP,O=Cisco Inc.,ST=NC,OU=TAC

Do you want to add an intermediate certificate? [N]> Y

Paste intermediate certificate in PEM format (end with '.'):
[Removed for simplicity]

Do you want to add another intermediate certificate? [N]>

Would you like to remove an intermediate certificate? [N]>

Do you want to view the CSR? [Y]>

-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----
List of Certificates
Name       Common Name           Issued By             Status         Remaining
---------  --------------------  --------------------  -------------  ---------
tarheel.r  myexample.com           myexample.com           Active          327 days
test       test                  test                  Valid          3248 days
Demo       Cisco Appliance Demo  Cisco Appliance Demo  Active         1570 days

Choose the operation you want to perform:
- IMPORT - Import a certificate from a local PKCS#12 file
- PASTE - Paste a certificate into the CLI
- NEW - Create a self-signed certificate and CSR
- EDIT - Update certificate or view the signing request
- EXPORT - Export a certificate
- DELETE - Remove a certificate
- PRINT - View certificates assigned to services
[]>


Choose the operation you want to perform:
- CERTIFICATE - Import, Create a request, Edit or Remove Certificate Profiles
- CERTAUTHORITY - Manage System and Customized Authorities
- CRL - Manage Certificate Revocation Lists
[]>

>commit

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