Target Skills:

Ability to describe how to set up server security features.

 
 
 
 
 
 
 

More Info:

Configuring Server Security (Admin Guide)

Configuring Server Security


Security settings affect how you keep messages from being intercepted, prevent intruders from impersonating your users or administrators, and permit only specific people access to specific parts of your messaging system. 
 

Setting Up Certificates and Encryption Modules

You configure the server for use of certificates and encryption modules by selecting the Tasks tab and clicking on the "Console" menu at the top of the Console.

The Certificate Setup Wizard walks you through most of the set up.  See Configuring SSL Encryption and Authentication (Admin Guide) for more information.
 

Setting Up Security for Specific Services (IMAP4, POP3, SMTP)

You configure server security for specific services by going to the Configuration Tab and opening up Services on the Console.


 

The different security configuration settings are organized by the services you want to affect (Services, IMAP, POP, or SMTP).  Some of these have been presented already in previous sections. 

Configuration/Services

Security features used by all services.
Encryption Tab: Sets the Cipher types you will allow the server to use for encryption (Default is all on).

Configuration/Services/IMAP

Security features used by IMAP4.

System Tab:

Use separate port for IMAP over SSL : Whether you want IMAP4/SSL connections to switch to a separate port, and the port number you want to use (Default is off, and port number 993).
Allow anonymous login: Whether you want to enable anonymous login (Default is off).
Allow password login: Sets user password login with optional encryption (Default is on, minimum cipher length 0).
Access Tab:
Allow: Filter pattern of who is allowed access. 

Deny: Filter pattern of who is denied access.

Configuration/Services/POP

Security features used by POP3.

System Tab:

Allow password login: Sets user password login with optional encryption (Default is on, minimum cipher length 0).
Access Tab:
Allow: Filter pattern of who is allowed access. 

Deny: Filter pattern of who is denied access.

Configuration/Services/SMTP

Security features used by SMTP.

System Tab:

Allow password login: Sets user password login with optional encryption (useful for Authenticated SMTP) (Default is on, minimum cipher length 0).
Unix delivery: Path to an alternative Unix mail delivery program for Unix Delivery enabled user accounts (Default is /usr/bin/mail).
Program delivery:  A safe User/Group account to run as when delivering mail to a program (Default is ID of 1).
Access Tab:
Allow: Filter pattern of who is allowed access. 

Deny: Filter pattern of who is denied access.

     

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