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Automatic Update
Updating the server is possible exclusively over the network. It is not possible to upgrade using the installation disk or USB flash drive. Automatic Update The automatic update parameters are configured in the section Server Management -> Automatic Update...
Backup
Providing users with stable access to the Internet is the main task solved by the Internet gateway. But sometimes there are situations that lead to system failures and subsequent disruption of Internet access. Depending on the complexity of the failure, it may...
Terminal
Use the terminal only for diagnostics. Refrain from commands that modify files. The system is designed to be configured only via the web interface. SafeDNS is not responsible for the negative consequences of working with SafeUTM from the terminal. Technical su...
License
Licensing Scheme At the moment SafeUTM license has two types of licenses: Free trial; Enterprise. Both types of licenses can be acquired by contacting your SafeDNS manager. Viewing license information A detailed view of the server and license inf...
Additional settings
Setting the time zone and collecting anonymous statistics. The configuration is carried out via the web interface in Server Management -> Additional settings section. Time zone settings - set the time zone in order to collect logs and statistics correctl...
Mail Relay
This section provides instructions for configuring the mail service, as well as for using additional features, such as webmail, spam checking, mail relay, forwarding, etc. All mail traffic filtering capabilities can also be applied to an internal mail serve...
General Settings
The basic settings section includes many basic parameters necessary for the operation of a mail server on the Internet. Main mail domain. Points the server to its mail domain for which it should receive and process emails. All user mailboxes will belong to ...
Webmail
Configuring the mail web interface to work on the local and external interface of SafeUTM. 1. In order for webmail to work on the local interface, you need to activate the Webmail setting in Mail Relay -> General settings.2. To work on the external interfac...
Setting up Mail Relay
If SafeUTM has an external IP address, a domain is registered to it, and the necessary records are configured with the registrar and provider, but you want another server to handle the sending and delivery of mail (for example, a pre-configured Exchange server...
Advanced Settings
Advanced Settings section consists of three subsections: General, Security, and DKIM-signature. General External SMTP relay. All outgoing mail will be sent to the specified address. It is used, for example, if mail must pass through the provider's upstream...
Setting up Domain at Registrar/Zone Holder
To create a mail server, you will need a domain name. You can register it with your Internet service provider or directly with the registrar. After you register a domain name, you will need to make changes to the zone description on the DNS server (at the d...
Rules
Rules section consists of three subsections: Forwarding, Permitted addresses, and Forbidden addresses. Forwarding Allows you to configure mail forwarding on the server using mail aliases. Aliases, unlike mailboxes, do not require logins and passwords, they...
Mail Forwarding
Setting up mail forwarding rules (aliases) To create and edit mail forwarding rules (aliases), go to Mail Relay -> Rules -> Forwarding. Mail aliases differ from mailboxes in that they do not require logins and passwords. They are assigned to a mailbox and ...
Mail Queue
Allows you to manage the queue of mail that for some reason cannot be sent or received right now. The module allows you to manage both incoming and outgoing deferred correspondence. To analyze possible reasons for the delay of correspondence in the queue, you ...
Configuring Email Clients
Configuration and examples of settings for popular email clients. It is not possible to connect from the Internet with Outlook (any version) via POP3 protocol. Outlook does not support STARTTLS encryption type for POP3, but only supports outdated and insecu...
Mail Traffic Filtering Scheme
Besides mail filters, other services are involved in filtering mail traffic on SafeUTM. The complete scheme and sequence of filtering are shown in the diagram. The white list in the mail settings ensures the passage of emails without filtering, starting fr...
Access from External Network without NAT
Access from LAN to External Network without NAT If necessary (as a rule, when SafeUTM is located inside a LAN, and not on the border with the Internet), it is possible to organize direct access to some resources of networks external to SafeUTM without using...
Publishing Web Applications (Reverse Proxy)
Publication of web servers is possible through a reverse proxy server.
Setting up Public IP Address on Computer in LAN
Use portmapping to forward their entire range from 0 to 65535 to get the effect of presence of a local server on an external IP address.
Portmapping (Port Forwarding, DNAT)
It is often necessary to configure the server so that it provides access to a network service running on a network device in LAN with a private (gray) IP address, that is, publish the service (or network service) on the Internet. Publishing a service availabl...