Epson WorkForce Enterprise WF-C21000 Series User Manual page 568

Administrator Information
Important:
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When you update a self-signed certificate by selecting the Network Security tab > S/MIME > Client Certificate,
you cannot change Sender's Email Address on the Network tab > Email Server > Basic. If you want to change
Sender's Email Address, change all signature settings to Do not add signature by selecting the Network Security
tab > S/MIME > Basic, and then delete the self-signed certificate for S/MIME.
1. Access Web Config, and then select the Network Security tab. Next, select SSL/TLS > Certificate or S/MIME
> Client Certificate.
2. Click Update.
3. Enter Common Name.
You can enter up to 5 IPv4 addresses, IPv6 addresses, host names, FQDNs between 1 to 128 characters and
separating them with commas. The first parameter is stored to the common name, and the others are stored to
the alias field for the subject of the certificate.
Example:
Printer's IP address : 192.0.2.123, Printer name : EPSONA1B2C3
Common name : EPSONA1B2C3,EPSONA1B2C3.local,192.0.2.123
4. Specify a validity period for the certificate.
5. Click Next.
A confirmation message is displayed.
6. Click OK.
The printer is updated.
Note:
You can check the certificate information by clicking Confirm on the Network Security tab > SSL/TLS > Certificate > Self-
signed Certificate or S/MIME > Client Certificate > Self-signed Certificate.
Related Information
"Application for Configuring Printer Operations (Web Config)" on page 405
&
"Deleting a Self-signed Certificate for S/MIME" on page 568
&
"Configuring S/MIME Basic Settings" on page 585
&
Deleting a Self-signed Certificate for S/MIME
You can delete the self-signed certificate for S/MIME when it is no longer necessary.
Even if you delete it, the self-signed certificate for SSL/TLS is not deleted.
1. Access Web Config and select the Network Security tab > S/MIME > Client Certificate.
2. Click Delete for Self-signed Certificate.
3. Confirm that you want to delete the certificate in the message displayed.
>
Advanced Security Settings
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Using a Digital Certificate