Find Jobs
Hire Freelancers

Linux Based Listening Server Application

$3000-5000 USD

In Progress
Posted almost 14 years ago

$3000-5000 USD

Paid on delivery
For a better formatted document, download [login to view URL] Maximum project budget $5,000 You MUST Have great experience in Linux, Perl, creating security certificates & keys (PKI) and creating secure connections. I am looking for a team with a strong security background to help me deliver a very secure system. Do NOT Post generic or standard bids – they will be ignored. No time wasters. Bid only if you have strong skill sets that are relevant to this project. Timescale Once the project has been awarded, the project must be completed to a beta testing stage in 60 days or less. Introduction The aim is to set up is secure private electronic mail service network that clients can connect to and send each other messages and files as attachments. The server application (this project) will run on multiple Linux systems to provide a network of servers that will form the backbone of the secure electronic mail service. Individual mailboxes are hosted on user PCs (personal mail server, WIMS). Clients will contact a designated system server to get authorisation and attempt to send the message directly to the destination mailbox, bypassing the system servers. If the destination mailbox is offline, then the message will be delivered to one of the system servers, designated as a backup host server (BHS). The server does not relay the message. Instead, the message is stored till the client system connects to collect waiting messages. In essence, the system is a secure, direct delivery or store till collected electronic mail system. 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 which will act as the front-end to managing customer, domain names, email account and other related details. This project is to develop the Linux server functionality only. Other components (WIMS server and secure web portal) will be developed separately as different projects. 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 (20k+). . Connections are both secure (SSL / TLS) and non-secure. . User account, partnerships details and other system data are automatically distributed / shared between the Linux servers. . Security Keys (PKI). Create, manage and issue security certificates & keys for servers (BHS and WIMS) and mailbox accounts. Support for Secure Web-portal (HTTPS): . Create and manage user login accounts (IS). . Create, register and manage our own Domains and sub-domains (private to our service and 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 WIMS (Destination Mailbox Server): . Handle and manage secure account logins (inbound connections). . Time synchronisation. All servers time is synchronised to GMT and WIMS will get their date and time from the Linux servers. . Register WIMS . Cache WIMS 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 WIMS, as binary data, for logged in account. . Authorisations. WIMS must obtain authorisation before it can send a message. . Support for direct end-to-end TCP/IP connections. Clients try to deliver mail directly to the destination WIMS. 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.
Project ID: 719901

About the project

12 proposals
Remote project
Active 14 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
Awarded to:
User Avatar
I'd be glad to provide state of the art networking and cryptography development services to you. Please refer to your PMB for further discussion.
$5,000 USD in 60 days
5.0 (14 reviews)
7.1
7.1
12 freelancers are bidding on average $4,150 USD for this job
User Avatar
It can be done :)
$5,000 USD in 60 days
4.9 (11 reviews)
5.9
5.9
User Avatar
I have expreince developing several listeners before. I can finish this in less than 6 weeks.
$5,000 USD in 60 days
5.0 (7 reviews)
4.3
4.3
User Avatar
We have in house linux security specialist with similar experience in past projects. The team can handle it.
$3,500 USD in 5 days
5.0 (3 reviews)
3.8
3.8
User Avatar
Please check the PMB,Thanks
$3,500 USD in 8 days
5.0 (2 reviews)
1.8
1.8
User Avatar
Hello sir. I'm presenting a small developers team as team leader. We have strong experience with Linux network development and system administration and I can organize development process in order to deliver to you high quality product. This can be confirmed by a really completed projects of our team, one of them was performed here, on this site. Our developers are experienced C programmers and very familiar in UNIX/Linux environment.
$4,500 USD in 60 days
5.0 (1 review)
1.0
1.0
User Avatar
Without many words : I can do it because I'm a Linux developer and Fedora rpm maintainer since 2005. -- Regards from Germany
$5,000 USD in 60 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hi, We are team of skilled software professionals from India, having more than 10 years of experience on GNU/Linux programming and administration. We are good in providing communication protocol and security system. If you are interested to work with us, we can discuss further. Thanks, Anil
$4,800 USD in 40 days
0.0 (0 reviews)
0.0
0.0
User Avatar
We are interested to proceed further. Reply awaited. Thanks
$3,000 USD in 50 days
0.0 (2 reviews)
0.0
0.0
User Avatar
Our Team can Work
$3,000 USD in 20 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hello, I have got a team of Linux developers and Red Hat; I myself is into it; So you have no issues with giving this contract me; For your reference & perusal, sending you my details and my company website via PMB; I would request you that I need this project work and you will get the perfect output; my best wishes & regards; Chalikar, Sanjay;
$4,000 USD in 7 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UNITED KINGDOM
ROTHERHAM, United Kingdom
4.2
22
Payment method verified
Member since Mar 31, 2009

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.