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The aim is to set up is secure private electronic mail service that clients can connect to and send each other messages and files as attachments. The system is a secure, direct delivery or store till collected electronic mail system. Messages are sent directly to the recipient's designated mailbox. When the destination mailbox server (DMS) is unavailable or off-line, multiple Linux servers act as backup hosts (BH) for each mailbox. The Linux based server application (this project) will run on different systems to provide a network of servers that will collectively provide backup support for all mailboxes.
Within the group of Linux servers, one will be nominated as the master / index server (IS) and will provide additional functionality including support for a secure web-portal via an API.
This project is to develop the Linux server functionality. Other components will be developed separately. Overall project description and further details will be provided to suitable bidders.
Some of the features required include:
. Admin panel.
. Initially support 32-bit Linux OS but must be scalable to 64-bit Linux OS.
. Support for high volume of concurrent connections (100k+).
. All connections are secure (SSL / TLS).
. User account and partnerships details are automatically distributed / shared between all BH servers.
. Security Keys (PKI). Create and manage security keys for individual servers that are part of service network and for special service related functions.
Support for Secure Web-portal (HTTPS):
. Create and manage user login accounts (IS).
. Create, register and manage private Domains and sub-domains (not issued by Nominet, Internic or any domain registrar) (IS).
. Manage and maintain user transactions (save payments related details, record payment transactions etc..) on IS.
. Product pricing for a small list of products (20 approximately) (IS).
. Payment Gateway including automated ability to take money from user credit card when payments for services are due (IS).
. Create and manage mailbox accounts (email addresses) on free or registered domains (IS). New account details are sent to all backup servers.
. Domain & mailbox assignment. When new domains are created they are assigned (based on set criteria) to two or more Linux servers, which act as the mailbox backup host servers.
. Create and manage mailbox account details (profiles).
. Manage potential partner lists for each account (users will upload their contacts details from personal address books to see if they are also using this service).
. Manage user templates. The web-portal will be based on a templating engine and users may define / associate different templates with their accounts.
. Manage promotion agent details and commission earned on service sales.
Support for Destination Mailbox Server (DMS):
. Handle and manage secure account logins (inbound connections).
. Time synchronisation. All servers time is synchronised to GMT and DMS will get their date and time from the Linux servers.
. Register DMS, cache last connection details.
. Send, receive and manage partnerships between accounts (only established partners can send messages to each other).
. Partnership profiles (account details that are exchanged) uploads / downloads.
. Part or full messages (these may be large, 4GB+ and are sent in small data chunks) may be sent or collected by DMS, as binary data, for logged in account.
. Authorisations. DMS must obtain authorisation before it can send a message.
. Support for direct end-to-end TCP/IP connections. Mailbox hosting servers try to deliver mail directly to the DMS. To allow this direct connection through firewalls, support will be required for UDP hole punching or something better.
. Download system files. System files (e.g. application software updates, details of network Linux servers and other service related files etc..).
Support for Linux Server - Linux Server:
. Copy / backup data between servers, over secure connections, for backup / safeguarding.
. Account details queries. Any mailbox backup-hosting servers may query the service index server about mailbox account details.
At the end:
. You will provide all source code and full documentation.
. Intellectual property passes to me.
Payment in milestones.
12 freelanceria on tarjonnut keskimäärin 3308 $ tähän työhön
I propose use Java to allow easy transition from 32-bit to 64-bit Linux servers along with providing a highly scalable solution using Apache MINA for managing multiple concurrent connections.
Hi, We are Atlanta based Web Development Firm and interested in your project. we can offer a quality product with 100% [url removed, login to view] check your PMB for more details.