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www.novell.com Securing Your GroupWise ® System Morris Blackham Software Engineer Novell, Inc. mblackham@novell.com Danita Zanrè Senior Consultant Caledonia Network Consulting danita@caledonia.net Michael Bell Software Developer Armana Software mikebell90@yahoo.com
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Vision…one Net A world where networks of all types—corporate and public, intranets, extranets, and the Internet—work together as one Net and securely connect employees, customers, suppliers, and partners across organizational boundaries Mission To solve complex business and technical challenges with Net business solutions that enable people, processes, and systems to work together and our customers to profit from the opportunities of a networked world
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Session Objectives Understand pre-requisites and configuration for: SSL WebAccess, GWIA, MTP, MTA/POA HTTP Server certificates Generating CSRs, obtaining certificates—third-party or Novell Certificate Server GWIA Securing connections Preventing GWIA from being an open relay
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Session Objectives (cont.) Securing Internet post offices without a VPN Reduce infrastructure costs without sacrificing security Antivirus/content filtering Protect your system from the flood of e-mail viruses LDAP authentication to the GroupWise ® mailbox Single password for Novell eDirectory ™, the GroupWise Client, and WebAccess
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SSL and Certificates GroupWise agents use OpenSSL implementation Generating Certificate Signing Request (CSR) GWCSRGEN.EXE with GroupWise 6 SP1 OpenSSL—create CSR or self-signed certificates Obtaining certificates Third-party Certificate Authorities Verisign, Thawte Novell Certificate Server
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Using GWSCRGEN * Note: All fields MUST be filled in Filenames must be 8.3 format Use 2 char abbreviation Do not use abbreviation Fully qualified DNS hostname of server
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Novell Certificate Server
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Novell Certificate Server (cont.)
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Reducing Your Network Costs WAN $$Corporate network
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Reducing Your Network Costs (cont.) GroupWise 6 Internet Corporate network
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Securely Using the Internet as a WAN: Prerequisites GroupWise 6 SP1 agents at all WAN nodes MTA-MTA (Domain-to-Domain) MTA-POA (Domain-to-Post Office) Signed certificates imported to all WAN node agents GWCSRGEN.EXE available for generating CSRs Agent with certificate is now SSL-enabled for message transfer
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SSL-Enabling the MTA* required recommended * the POA is done exactly the same way…
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GWIA—Securing Your Connections Secure SMTP transactions using STARTTLS Connecting SMTP host must also support STARTTLS (you can test by sending to myrealbox.com) Secure POP3/IMAP4 Support on ports 995 (POP3) and 993 (IMAP4) Also support STARTTLS method with ports 110 and 143 HTTPS connection for HTTP monitoring
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GWIA—Preventing Relaying GWIA 6 Relaying is disabled by default Relaying is now denied at a SMTP daemon level Relay exceptions can be IP addresses or address range Added SMTP AUTH, if POP/IMAP clients use authentication on outbound SMTP, relay access control is bypassed GWIA 5.5 and 5.5EP Apply latest support pack or FTF to eliminate “user@domain.com” from being relayed
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Anti-Virus—Spam Control Anti-virus solutions Protection available at GWIA MTA Desktop
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GWIA Anti-Virus Solutions Use of SMTP home directory (Third-party directory) Intercepts all incoming and outgoing e-mail See TID 10065630 for configuration details Two products available Guinevere—http://www.openandhome.com FootNote—http://www.stack.co.uk
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GWIA Anti-Virus Solutions Other anti-virus solutions using relay host Not specific to GroupWise GWIA relays third-party host for virus checking MX record references virus checking host, relays inbound messages to GWIA Products include Symantec—Norton Anti-Virus for Gateways McAfee—Webshield Trend Micro—Interscan MailSweeper for SMTP
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MTA Anti-Virus Solution MTA level virus protection Intercepts all mail routed through the domain Gateway messages, except WebAccess All inter-post office traffic Product: GWAVA http://www.beginfinite.com Related Session: TUT225
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Securing WebAccess No WebAccess specific steps needed Enable WebServer for SSL connection NES—Uses Novell Server Certificate IIS—Uses NT/2000 Certificate Apache—Open SSL certificate
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LDAP Authentication To GroupWise Post Office agent GroupWise 6 SP1 LDAP server eDirectory 8.5 (or any LDAP v3 Directory) Login request Credentials Results GroupWise client GroupWise WebAccess Results
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LDAP Authentication: Prerequisites And Limitations GroupWise 6 SP1 POA, WebAccess, and Client (Client and WebAccess required for interface support of password expiration dialogs) eDirectory 8.5 LDAP Server, with GroupWise users in the eDirectory 8.5 tree OR User object MAIL attribute synchronization between GroupWise and the LDAP server of choice For full password expiration functionality, the POA must be forced to BIND
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LDAP Authentication: Post Office Configuration required recommended leave blank 636
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LDAP Configuration: Why Leave the LDAP User Name Blank? Credential behavior with the LDAP user name and password POA will use this user name and password to connect, and then do a ‘compare’ of the user-provided credentials against the LDAP directory ‘Compare’ does not support expiration of passwords Credential behavior without the LDAP user name and password POA will use the user-provided credentials to attempt to bind to the LDAP server Password expiration is supported for a BIND connection
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LDAP Configuration: SSL Certificate Use and Requirements Why Use SSL? Without SSL, LDAP credentials are passed in the clear This is unacceptable, even within your firewall SSL certificate must be a Trusted Root Certificate for the LDAP directory This is the way the standard is written—it’s an LDAP requirement The LDAP SSL port is 636
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Exporting the Trusted Root Cert Detail screen of a server certificate object, Trusted Root Cert Export the Trusted Root in.DER format
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Exporting the Trusted Root Cert (cont.)
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