Firewall ports
You might need to open the following ports on your DMZ firewall, depending on your network configuration:
| Port | Protocol | Direction | Required for |
|---|---|---|---|
| 20 | FTP | In/Out | Backup & Restore if using an FTP server. |
| 21 | FTP | In/Out | Backup & Restore and Transaction Logging if using an FTP server. |
| 21 | FTPS (exp) | In/Out | Backup & Restore and Transaction Logging. |
| 22 | TCP | In | SSH access to the console. |
| 22 | SFTP | Out | Backup & Restore, and, server containing lexical data for import |
| 25 | TCP | In | Inbound SMTP |
| 25 | TCP | Out | Outbound SMTP. If your system uses an alternative port, open that instead. |
| 53 | UDP/TCP | Out | DNS requests, if using DNS servers. Only allow outbound requests to the specified DNS servers, and responses from those servers. |
| 80 | TCP | In | HTTP access to the PMM interface (if using PMM) |
| 80 | TCP | Out |
Access to the Service Availability List: services1.clearswift.net services2.clearswift.net services3.clearswift.net |
| 80 | TCP | Out |
Access to the RSS Feed from: www.clearswift.com |
| 123 | UDP | In/Out |
Access to NTP services, if configured. The following servers are configured by default: 0.rhel.pool.ntp.org 1.rhel.pool.ntp.org 2.rhel.pool.ntp.org 3.rhel.pool.ntp.org |
| 135 | TCP | Out | User authentication using NTLM (when using PMM in Full Mode) |
| 137 | UDP | Out | User authentication using NTLM (when using PMM in Full Mode) |
| 139 | TCP | Out | User authentication using NTLM (when using PMM in Full Mode) |
| 161 | UDP | Out | SNMP inbound: the port used by an SNMP browser when scanning Secure Exchange Gateway |
| 162 | UDP | Out | SNMP alerts |
| 389 | TCP | In/Out | LDAP directory access (if you use LDAP servers) |
| 389 | TCP | In/Out | LDAP Key Server Queries |
| 443 | TCP | In/Out | HTTPS Key Server Queries |
| 443 |
TCP |
In/Out | HTTPS access to Clearswift Secure Exchange Gateway web interface and for communications between |
| 443 | TCP | Out | HTTPS access to Secure Exchange Gateway Online Help |
| 443 | TCP | Out |
HTTPS access to the Clearswift Update Server for license management and handling Managed Lexical Expression Lists: applianceupdate.clearswift.com |
| 443 | TCP | Out |
Access to Clearswift product and Operating System updates: products.clearswift.net rh7-repo.clearswift.net |
| 443 | TCP | Out |
HTTPS access to the Sophos or Avira Update Servers for fetching anti-virus updates and software upgrades. Sophos update servers: sav-update-1.clearswift.net sav-update-2.clearswift.net sav-update-3.clearswift.net sav-update-4.clearswift.net sav-update-5.clearswift.net sav-update-6.clearswift.net Avira update servers: aav-update-1.clearswift.net aav-update-2.clearswift.net aav-update-3.clearswift.net aav-update-4.clearswift.net aav-update-5.clearswift.net aav-update-6.clearswift.net *.apc.avira.com |
| 443 | TCP | Out |
HTTPS access to Sophos URL Lookup Server: 4.sophosxl.net |
| 445 | TCP | Out | User authentication using NTLM (when using PMM in Full Mode) |
| 514 | TCP | Out | Access to a syslog server (default port for log export) |
| 636 | TCP | In/Out | Secure LDAP/S directory access |
| 990 | FTPS | In/Out | Backup & Restore and Transaction Logging.Also used to connect Clearswift Secure Exchange Gateway with your server containing lexical data for import. |
| 3268 | TCP | Out | LDAP connection to an active directory global catalog port (if you are using LDAP servers) |
| 3269 | TCP | In/Out | LDAP and SSL connection to an active directory global catalog port (if you are using LDAP servers) |
| 9090 | TCP | In/Out | Connection to Red Hat Cockpit |
| 11371 | TCP | In/Out | HTTPS Key Server Queries |
| 19200 | UDP | In/Out | Broadcasting of greylisting data to |
Exchange Server Firewall Ports
The following table lists the ports you might need to open in Windows Firewall on your Exchange Server:
| Port | Protocol | Direction | Required for |
|---|---|---|---|
| 10443 | TCP | Out | HTTPS access to the Clearswift Secure Exchange Gateway web service. |
| 23953 | TCP | In/Out | Communication with other SXG Interceptors. |
| 23955 | TCP | In/Out | LDAP access to SXG configuration store. |