When a user points a browser to a WebUser port of the CommuniGate Pro server, the Login page is displayed. The WebUser ports are specified in the HTTP User module settings, the default clear-text WebUser port is 8100, the secure one (not configured by default on some platforms) is 9100.
When the Login page is displayed, users can enter their name and password, and start a WebUser Session.
The WebUser module checks for the domain name specified in the URL and presents the Login page for the addressed Domain. If the CommuniGate Pro server provider.com has a secondary Domain client.com, then the <http://provider.com:port> URL will display the provider.com Login page in a user browser, and the <http://client.com:port> URL will display the client.com Login page, even if the client.com has no dedicated IP address.When the WebUser module retrieves the domain name from a URL, it runs it through the Router domain-level records. If the Router Table has a record:
If the URL specifies a domain name that is not routed to any CommuniGate Pro Domains, an error page is displayed. This usually indicates an error in your Server setup: the specified domain name has a DNS A-record that points to your Server (otherwise the Server would not get this request), but that name is not routed to any of the Server Domains. You should either create a secondary Domain with that name, or route this domain name to one of the existing CommuniGate Pro Domain.
If a URL specifies an IP address instead of a domain name, the WebUser module tries to find a CommuniGate Pro Domain to which the specified address is dedicated. If no Domain is found, the Main Domain Login page is displayed.
Users can open any Account in any Domain from any Login page, if they specify the complete Account name: if the Login page of the Main Domain is displayed (<http://provider.com:port>) and the email@example.com name is entered in the username field, the Account username will be opened in the client.com Domain (if the correct password is provided).
If a Domain has some mailing lists, its Login page contain a link to the Mailing List archive pages.
If the Domain has the Auto-Signup option enabled, a link to the Auto Sign-up page is displayed on the Domain Login page.
If the Domain has a custom Security Certificate, a Certificate link is displayed. If a user clicks that link, the Domain Certificate can be installed as a trusted Certificate in the user browser.
Some protocols (such as IMAP and POP) are session-oriented protocols: a client application establishes a connection with a server, provides the data needed to authenticate the user, processes the data (mailboxes, settings, etc.) in the user account, and then closes the connection. The HTTP protocol is not a session-oriented one: a Web browser establishes a connection, sends one or several page requests, receives the requested data, and closes the connection.
To provide the session-type functionality, the WebUser module implements a so-called application server: when a user is authenticated via the "login page", a virtual session is created. The virtual session is an internal server data structure keeping the information about the user, open mailboxes, and other session-related data, but it is not linked to any particular network connection. When the user is working with an account using a browser, the WebUser module routes browser requests to one of the already opened virtual sessions.
In order to route requests properly, the WebUser module creates a unique session identifier (session ID) for each virtual session created and makes user browsers include the session ID into every request they send.
To avoid "hijacking" of WebUser sessions, the WebUser module remembers the network (IP) address from which the login request was received, and routes to the session only the requests received from the same IP address.
Note: Sometimes, when a user connects via a proxy server, the user requests
may come to the Server from different IP addresses (if the proxy server uses several network
addresses). In this case, the user should disable the address-controlling option on the
WebUser Interface Settings page. Users of some large
providers access the Internet via the provider's proxy servers, so their accounts
should have the address-controlling option disabled.
Alternatively, enter the provider proxy IP addresses as a range into the NAT Server IP Addresses list.
All network IP addresses that belong to the same range in that list are treated as "same".
Usually, users start WebUser sessions by entering their Account names and passwords into the WebUser Interface login page fields. This is a "clear text" login method, and it is secure only when the page is accessed via secure (SSL/TLS) connection (via the https:// URL).
Alternatively, users can retrieve the /login/ URL on your Server. The Server will require an HTTP-level Authentication, and the browser will either present the Authentication dialog box, or it will send the user's Certificate if a secure (SSL/TLS) connection is used.
When designing a set of Web-based services ("portals"), it may be necessary to create a WebUser session without presenting a login page to the user. The following mechanisms can be used.
To configure the WebUser Interface module, use any Web browser to connect to the CommuniGate Pro WebAdmin Interface, open the Access pages in the Settings realm, and then open the Sessions page.
Open the HTTP User Module settings, and find the Sub-Protocols panel:
The Access setting specifies who can create WebUser sessions.
The Server Administrator can specify one or several external spell checker programs. To configure spell checkers, follow the Spelling link on the General Settings page.The Spelling page appears :
To configure a spell checker, specify the language the program can process, and path to the program file, and the character set the program can handle. The internal data presentation use the UTF-8 character set, so set the UTF-8 value if no conversion is needed.
Use the Log Level setting to specify the type of information the spell checker module should put in the Server Log.
The spell checker module records in the System Log are marked with the SPELLER tag.
Use the Enable check box to enable and disable the spell checker program without removing it from the program list.
To remove a spell checker program, enter an empty string into its Language field and click the Update button.The spell checker program should provide the same "pipe" interface as the popular Ispell and aspell programs:
The WebUser module presents a link to the Mailing Lists page on the Domain Login Page.
The Mailing Lists page displays all mailing lists created in the Domain that have the allow anybody to browse option enabled. Each name is a link that can be used to open a page listing messages in the Mailing List archive. Since Mailing Lists messages are archived in Mailboxes, the Mailing List WebUser interface is similar to the Mailbox Browsing interface.
The Mailing List WebUser Interface does not require any authentication, so no virtual session is created for list users, and each browser request is processed independently.
If a domain has the Auto-Signup option enabled, the WebUser Interface Login page contains a link to the Auto-Signup page. This page allows a new user to enter a user name, a password, the "real-life" name, and to create a new Account.
When a new account is created, its options and settings are taken from the domain Account Template.