It infrastructure freelance projects jobs
...vulnerability assessment and penetration testing on our network and system infrastructure. The primary objective of this task is to find potential security vulnerabilities. - Task Details: Your work will involve identifying weaknesses that could possibly be exploited to undermine our security controls and then testing how effective these controls truly are. - Approach: Please prioritize any vulnerabilities found according to threat severity level. I'm looking to focus on the most critical threats before handling the lesser ones. - Necessary Skills: Previous experience in network security, vulnerability assessment, and penetration testing is critical. You need to demonstrate a strong understanding of network and system infrastructure, its vulnerabilities, and s...
I'm looking for an experienced AWS professional to assist me with setting up an optimized infrastructure and deployment strategy using Amazon EC2, Amazon S3, and AWS Lambda. Key requirements include: - High Availability: Ensuring my system remains accessible and performs well under varying loads. - Scalability: Setting up the infrastructure to smoothly grow as our needs increase. - Security: Implementing industry-standard security practices to keep our data and system safe. Please note that I'm not currently looking for ongoing maintenance and optimization support. This is primarily a one-time project to set up an effective AWS infrastructure. Ideal candidates will have a deep understanding of AWS services, with a proven track record of setting up secur...
We are looking for an experienced freelance financial analyst to create an editable Excel-based franchise valuation model for a sports club. The model will be used to facilitate investment opportunities and should include relevant financial information to determine the franchise's value using industry-standard methodologies. Responsibilities: Develop an editable Excel-based franchise valuation model. Incorporate future projections of cost and revenue provided by us. Use industry-standard methodologies, such as Discounted Cash Flow (DCF) and Weighted Average Cost of Capital (WACC), to determine franchise value. Ensure the model is comprehensive, user-friendly, and adaptable for future use. Requirements: Proven experience in financial analysis and valuation, particularly in t...
Looking for an expert who can configure MongoDB and Neo4j on my VPS running on a Linux distribution. The VPS is through Hostinger. The ideal freelancer for this project should possess: - Proficient knowledge of Hostinger's cloud infrastructure - Solid experience in setting up MongoDB and Neo4j on Linux-operated VPS - Familiarity with Cloudpanel, its features, and setup process. Your responsibility will include configuring both MongoDB and Neo4j on the same VPS instance. I expect the task to be thoroughly completed, ensuring a seamless operation of both databases. Your knowledge in distro-related Linux specifications will be advantageous for this project. Looking forward to a prompt and accurate setup.
I need to install a Microsemi 600 NTP server for my network, which is a mix of wired and wireless connections. The primary goal of this installation is to ensure time synchronization across a range of devices, which totals bet...primary goal of this installation is to ensure time synchronization across a range of devices, which totals between 10 and 50. Key Tasks: - Installation of Microsemi 600 NTP server - Configuration for both wired and wireless network environments - Synchronization of 10-50 devices Skills/Experience: - Previous experience with NTP server installation and configuration - Expertise in network infrastructure, particularly in mixed wired and wireless setups - Understanding of time synchronization protocols - Proficiency in handling multiple devices for a uniform...
I'm in need of a skilled professional who is adept in both AWS and Debian server management. The job involves setting up and maintaining the AWS and Debian infrastructure and networking. Key Responsibilities: - Setting up and managing AWS services such as EC2 and S3. - Handling Debian server administration, particularly focusing on networking. - Ensuring that the EC2 instances can handle a small workload and that the S3 bucket meets our small storage capacity needs. Ideal Skills: - Proficiency in setting up and managing AWS services, particularly EC2 and S3. - Strong experience in Debian server administration, with a focus on networking. - Ability to ensure that the EC2 instances can sustain a low workload and the S3 bucket meets our minimal storage capacity requirements. ...
...app, where the mobile app design is already prepared and nearly complete. We need skilled Flutter developers who can quickly implement the design, handle user authentication, integrate APIs for quiz functionalities, and ensure smooth data flow between the frontend and backend within the given time the backend side, we require Laravel developers who can efficiently set up a robust infrastructure for managing user data, create RESTful APIs for seamless communication with the mobile app, and implement basic anti-cheating measures to prevent unauthorized access during exams. For the admin dashboard, we are considering both React and Vue.js developers. The selected developers will need to customize the dashboard to provide essential functionalities for managing exams, viewing user...
...developer to bring our online marketplace to life by developing its frontend using the latest Angular version. If you're passionate about clean coding, adhering to best practices, and creating seamless user experiences, we want to hear from you! Project Overview: - Design Ready: Figma designs are prepared and ready for implementation. - Backend APIs Ready: Our backend infrastructure is set up and waiting for the frontend to complement it. - Frontend Development: Your main task will be to develop the frontend part of our online marketplace using Angular. - Responsiveness: The website must be responsive, utilizing Material UI for a consistent and amazing user experience across all devices. - Mobile Optimization: Mobile optimization is a priority to ensure smooth functi...
Transfer Website (5.6 PHP) To New Host and Fix It In New Server 1) Cpanel (backup) 2) Cpanel install files in new host 3) Fix website in PHP 5.6 in new host. This website: PLEASE, FINAL PRICE IN YOUR PRICE. Regards, Robin
python chrom headless script which will visit given list of URLs/websites aftear each config delay in seconds. script will use different ip in each iteration of list urls visit. it will keep running untill ip list end and start from 1 again. You will suggest from where i will buy rotating ip proxies which not blocked by the urls. Purpose of this script. visit given list of urls with different ip proxies. rotating ip proxies will be fine these are example urls: one is this link :
python chrom headless script which will visit given list of URLs/websites aftear each config delay in seconds. script will use different ip in each iteration of list urls visit. it will keep running untill ip list end and start from 1 again. You will suggest from where i will buy rotating ip proxies which not blocked by the urls. Purpose of this script. visit given list of urls with different ip proxies. rotating ip proxies will be fine these are example urls: one is this link :
I am in need of an adept Unreal Engine developer that will upgrade my project with multiplayer functionality and intricate pr...with multiplayer functionality and intricate procedural modeling. - Multilayer Functionality: My design is to have a Massively Multiplayer Online environment, thus an optimal understanding of creating and managing MMO infrastructure is essential. - Procedural Modeling: The project requires randomized and realistic environments. This means, having the experience in creating complex procedural ambiance and details is indispensable. Ideally, I am looking for an experienced Unreal Engine developer proficient in blueprint scripting and with a history of working on MMO projects. Having examples of prior work on procedural environment design would also...
...enhancing platform stability and performance. Required Skills: AWS Infrastructure Expertise: Strong capability in managing AWS services including S3, RDS, and CLI. Database Management: Proficient in PostgreSQL. Web Development: Expertise in Django for backend and for front-end server-side rendering. Mobile Development: (For later stages) Experience with Flutter. Project Management: Experience in managing large-scale development projects with a high ability to interpret and act on feedback. Qualifications: Proven track record in delivering large-scale web and later mobile projects. Exceptional problem-solving skills and adaptability in a dynamic, fast-paced environment. Strong portfolio showcasing relevant projects. Excellent communication and team collabor...
I am seeking a skilled freelance engineer or designer with experience in building mechanical prototypes. The task at hand involves creating an adapter for DrinkMate to a universal bottle. The project will involve: - Collaborating with me to determine appropriate dimensions for the adapter. - Designing a CAD file for the adapter, ready for 3D printing. Note that I have no preference for the 3D file format, so we can decide on the best one for this project. - Creating a physical prototype of the adapter as well as the CAD file. (this may be a second phase) Ideally, I am looking for someone with experience in 3D printing, mechanical design, and of course, proficiency in CAD software. Open communication and a collaborative nature is highly valued in the completion of this task. I see...
I am aiming to enhance my personal collection with a custom anime acrylic scene. The scene should feature Zoro from One Pi...personal collection with a custom anime acrylic scene. The scene should feature Zoro from One Piece and Vegeta from Dragon Ball training at the Capsule Corp. I am particularly interested in a detailed, realistic interpretation of these characters. The freelance artist's knowledge of and enthusiasm for anime is crucial, especially the aforementioned series. Knowledge and experience i would like to be able to have this prined on a canvas or acryllic painting , as this piece will hold a prized place in my personal collection. I intend to have it autographed by the english voice actor for vegeta and zoro on june 21 also would like the dimencions to be ...
I'm seeking a s...professional templates. This is integral - each resume it creates should have its unique touch but maintain a professional stance fitting for the IT industry. - The chatbot should have a comprehensive understanding of the technology field. It needs to provide users with suitable skills and experience suggestions fitting for various roles in the IT sector. - Prior proven experience in building similar chatbots is appreciated. A robust portfolio in the same line of work will be an added advantage. By landing a hand in this project, you'll be part of an innovation aimed at revolutionizing how tech professionals create their resumes. I am keen on every detail, so rest assured your expertise won't go unnoticed. Expertise in AI, Progr...
I'm in need of a Logistics Analyst with the ability to handle different aspects of our supply chain. We are seeking a Freelance Logistics Analyst to develop a comprehensive monthly business review for our 3PL management operations (Warehouse and transportation) . The ideal candidate will compile performance data, analyze logistics processes, and present findings in a structured report. Responsibilities: - Gather and analyze logistics data to assess performance. - Create monthly business review reports highlighting key metrics and insights. - Suggest improvements based on data analysis. Required Skills: - Proven experience in logistics analysis or supply chain management. - Strong analytical and reporting skills. - Proficient in data visualization and presentation tools. I...
This is job is only available for the of Bangladesh.. We are seeking a talented freelance web designer/developer to create a custom template for our existing website, While we admire the design and layout of , we are looking for a unique template that aligns with our brand identity and specific requirements. some pages are already done you can see in our staging site : We need Following templates to be design in our site: Home Engagement Models Solutions Expertise Technology Expertise All Technologies All Software Developers Developer Skill Recruitment Clients About Contact Outsourcing Handbook Why Outsource Why Nearshore Insights
We are looking for an experienced webflow developer on a frequent hourly base for multiple projects. Please share webflow references. Thanks
We are seeking a certified solar designer with extensive experience in multi-family projects. The ideal candidate will possess comprehensive knowledge in solar design and related areas to effectively collaborate with various trades, including: 1. Structural Requirements/Roof Attachment: Proficiency in assessing structural needs for roof attachment of solar panels. 2. Space Allocation: Ability to identify alternative areas on the property for panel installation if roof space is insufficient. 3. Electrical Requirements: Understanding of electrical specifications relevant to solar installations. 4. Financial Modeling: Competence in developing financial models related to solar projects. 5. Utility Connections: Experience in coordinating with utility companies for seamless integr...
I need a comprehensi...healthcare accessibility. The final report should include information and insights on the following aspects: - Number of hospitals and clinics in Ethiopia - Specialties offered by hospitals and clinics in the country - Quality of healthcare services in these establishments - Main challenges or barriers that affect healthcare accessibility in Ethiopia, which should include: - Limited healthcare infrastructure - Shortage of healthcare professionals - Affordability of healthcare services Ideal candidates for this project should have prior research experience, particularly in the healthcare sector. Knowledge of the Ethiopian healthcare system would be an added advantage. The ability to analyze data and present findings in a clear and concise manner i...
...فعال - سجل حافل في تقديم المشاريع الناجحة - معرفة أفضل الممارسات الصناعية في مجال تطوير البرمجيات، وخاصة لتطبيقات الهاتف المحمول. سيتطلب منك هذا الدور قيادة الفريق، وتوجيههم خلال تعقيدات المشروع، والتأكد من أن نتائج المشروع على أعلى مستوى. ستكون مساهمتك وتوجيهاتك جزءًا لا يتجزأ من نجاحنا. اوقات العمل: حرًا ويعمل يوميًا او متقطع وقت كامل full time part time بيئة العمل: مستقل/عبر الإنترنت freelance/online remotely العمل والاجتماعات عن بعد عبر برنامج Zoom. -- نظام العمل: ينقسم العمل إلى خطوات وأهداف وأوقات منظمة يتفق عليها الطرفان. يتم الدفع مباشرة بعد التسليم دون تأخير من مدير المشروع. -- إجمالي المبلغ الممول للعقد: 100 دولار أرسل اهتمامك و بياناتك. ليتم إدراجه في قائمة الاختيار. تفاصيل وتوضيح اكثر. متاح لقاء زوم
Seeking a server specialist familiar with handling tasks on a dedicated server, predominantly Linux Server The tasks include: - Expertly masking or hiding the server's backend IP from the public view. - Seamless integration of the server...include: - Expertly masking or hiding the server's backend IP from the public view. - Seamless integration of the server with Cloudflare. - Closing off all unnecessary or unused ports to enhance cybersecurity measures. For this project, you should possess a deep understanding of server administration, Linux operating systems, and Apache web server. Familiarity with Cloudflare or similar web infrastructure and website security services is a must. Speed, efficiency, and an eye for detail will be key elements for this task'...
...my website, SinglesMix, and its local edition, Brickell Singles Mix. The logos and business cards should have an elegant and refined look, with a focus on timeless design and a sense of connection and exclusivity. **Logo Specifications for Singles Mix and Brickell Singles Mix:** - **Name Variations:** THESE ARE 2 DIFFERENT DESIGNS. PLEASE DO NOT PUT SINGLESMIX with BRICKELL SINGLES MIX BELOW IT - For SinglesMix: Singles Mix / SINGLES MIX / SINGLESMIX / singlesmix / singles mix - For Brickell Singles Mix: Brickell Singles Mix (This will use the same base design as SinglesMix but with "Brickell" prefixed) - **Style:** - Elegant, timeless, and sophisticated to appeal to a discerning singles community. The design should convey a sense of exclusivity, connecti...
Overview: Seeking a talented freelance Content Creator to craft 15-30 reels and shorts, focusing on spiritual and devotional themes edits Immediate start with potential for ongoing collaboration. Responsibilities: 1. Produce 15-30 reels and shorts , 30 seconds to 1 minutes each, centered on spiritual and devotional topics and events 2. Conceptualize original ideas in line with brand values and audience preferences. 3. Source high-quality footage, music, and assets to elevate content. 4. Edit content for exceptional professionalism and creativity. 5. Collaborate closely with the team for feedback and refinement. 6. Stay updated on industry trends to enhance content effectiveness. Requirements: 1. Proven video editing experience, with a strong portfolio in spiritual or devotional c...
I'm looking for telemarketing ex...real estate and agribusiness sectors, promoting our innovative range of IT services. The ideal freelancer for this role should have: - Expertise in telemarketing and cold calling - Knowledge and understanding of the real estate and agribusiness sectors - Familiarity with IT services and products, and the ability to communicate their benefits persuasively - Strong communication and interpersonal skills The core goal of this campaign is to generate leads and potentially set appointments for further discussions. The ideal candidate, therefore, should have a strong track record in lead generation and appointment setting. The aim isn't to push a hard sell, but to engage potential clients in conversation about what our IT servi...
As a client, I'm in need of an experienced proposal writer with strong writing and editing skills. I target my proposals for various entities such as government agencies, non-profit organizations, and private foundations. The main purpose of these proposals will be to request funding. Key responsibilities for this project include: - Drafting and editing grant and project proposals - Tailoring proposals to meet the specific needs and requirements of different target audiences - Ensuring that each proposal is compelling, clear and persuasive - Meeting deadlines for proposal submissions The ideal candidate should have: - A strong background in proposal writing, specifically in the realm of seeking funding - Excellent writing and editing skills - Experience with a variety of proposal ty...
I'm a content writer looking to upgrade my freelancer account and get more daily basis projects. I need guidance on how to upgrade my account and get more projects. Key Requirements: - Assistance on upgrading my freelancer account - Guidance on how to attract daily projects - Tips and tricks for securing consistent work Ideal Skills: - Proficiency in freelance platforms - Strong understanding of content writing and what clients look for - Knowledge on how to get more daily projects Please share your experience, and how you can help me achieve my goals.
I'm in need of a professional freelance with an outstanding ability to edit a person into a photo. The purpose of this project is to provide someone with a memorable photo that has a surreal theme. Expectations: Hi, my family couldn't attend my graduation, so I'd love it if you added them to my graduation photo. - Seamless integration of a person into an existing photo - Attention to detail to maintain surreal realism in the image - Placing a high emphasis on the natural look of the edited picture Ideal skills: - Expertise in Photoshop and photo-editing - Experience in surreal-themed photo editing - Highly attentive to minute details
I'm need to build an CloudSigma "Seville, Spain" Cloud Location please, powered by Comvive, hosted in "Sevilla Datacenter", at San José de la Rinconada, Spain. Please build an API (based on django-tastypie, TwistedWeb, MySQL, django-allauth, etc) from and CloudSigma WebUI. Also download entire CloudSigma WebUI and add all missing APIs from CloudSigma WebUI. Install VMware vSphere 8, KVM and Solaris hypervisors to the cloud location. I will wait for the project. Thank you.
...vendors to manage their products, orders, and customers. Along with a customer dashboard for a delightful shopping experience. - Logistics and Services: Efficient integration of logistics and services to ensure timely delivery and customer satisfaction. Key Points: - Scale: The platform is expected to handle an extensive range of products and a high number of customers. A scalable and robust infrastructure is necessary. - Vendor Support: The system should be able to support multiple vendors, allowing them to effectively manage their stores and products. Ideal Skills and Experience: - Proven experience in designing and architecting large-scale ecommerce platforms. - Strong understanding of product catalog and shopping cart management systems. - Experience in creating systems th...
...configuration management tools to automate server provisioning and configuration. Define infrastructure as code using Puppet manifests, Chef recipes, or similar tools to ensure consistent server configurations. the server need to be setup for multi-tenant so it required the basic tool like virtualadmin or something to manage and deploy the entire system and interface to manage and control all the stuff over server. the setup will be done on single server for now and it can required a feature to get expanded with single click, so that purpose of the cloud get achieved. Open stak can be used as well ( just a reference) if anything else will work on fly then we will go with that. if compare what kind of service it will be, then this can be similar like verce...
We are in need of a skilled freelance designer, proficient in Adobe Illustrator or Coral draw, to design vivid, colorful labels and cartoon boxes for our product. The ideal candidate will share a passion for bright, eye-catching designs that captivate consumers and represent our product's enthralling charm. Primary Duties: - Create vibrant, engaging product labels - Design colorful dieline to print customised cartoon box Qualifications: - Exceptional skills in Adobe Illustrator or Coral draw. - Proven experience in vibrant, colorful design Please present your previous work in vibrant and colorful styles when bidding.
...business opportunities for our IT services company. Responsibilities: Platform Management: Maintain and optimize our company's profiles on platforms like Upwork, Freelancer, and other relevant platforms. Monitor platform activity, including client inquiries, project postings, and competitor activity. Develop strategies to enhance our visibility and reputation on these platforms. Business Development: Identify potential clients and projects aligned with our services. Proactively reach out to clients through platform messaging, proposals, and other communication channels. Build and nurture relationships with clients to understand their needs and requirements. Collaborate with the technical team to develop tailored proposals and solutions for client projects. N...
Hello developers, Hope you all are doing well. I need two Flutter developers for my two separate ...welcome to the team. Requirements: 1. Figma to Flutter app UI conversion. 2. Google Map integration and handling Google map matrices api's. 3. Knowledge about animations. 4. API integration. 5. Getx state management. 6. Knowledge about Node.JS is appreciated (Optional). 6. Some knowledge about and it's integration in app for real time data transmit. 7. Free from other projects. You will be working on our projects with full effort. 8. Developers from Bangladesh is welcomed. If you are not from Bangladesh you are also invited to bid. Just mention on your bid that you are not from BD and from BD so that we confirm you read all the requirements carefully. We will hav...
Hi Md Robiul Islam R., thank you, take care and be well.
Hi Jhonny S., please kindly review in required all projects for April 2024.
I'm in need of a Unifi Network Administrator who can set up and manage my network infrastructure. This will include configuring and troubleshooting my wireless access points. My setup is considered small (less than 50 devices) and is currently without a Unifi Controller software. Expertise in the latest versions of the Unifi Controller software is required as you will be in charge of the installation. Ideally, you should demonstrate previous experience working with similar setups.
...Experience in working with WordPress sites and integrating APIs. - Chatbot Development: Proficiency in building and configuring chatbots using latest technologies. - Real Estate API Integration: Proven track record with RETS and MLS APIs, particularly Zillow. Please provide examples of similar projects you've completed, and discuss your experience with ChatGPT or similar AI models, and your familiarity with real estate data and APIs. <———————————————————————————> Project Overview: We are seeking a freelance developer to integrate the RETS and MLS real estate APIs with an existing ChatGPT 4.0 model t...
I'm seeking a proficient AWS Cloud Engineer, specifically with strong skills and experience in infrastructural setup and configuration. This project involves AWS S3, as its main functionality will be ...seeking a proficient AWS Cloud Engineer, specifically with strong skills and experience in infrastructural setup and configuration. This project involves AWS S3, as its main functionality will be dedicated to backup data. Honed skills in network design and optimization, as well as in security implementation and monitoring, are beneficial for this task. To fit the role, expertise in: - AWS S3 - Infrastructure setup and configuration - Cloud security management - Network optimization will be your key to success in this project. If you have solid experience in these areas, I welc...
I'm in need of a skilled freelance accountant who specializes in finance. This role will involve a range of tasks typically associated with an accountant in the finance field. Key Responsibilities: - Executing standard accounting functions such as bookkeeping, financial statement preparation, and tax returns. - Offering financial advice and insights based on analysis of financial records. - Managing financial transactions and providing timely financial reports. Ideal Candidate: - Proven experience as an accountant in the finance industry. - Strong understanding of financial principles and standards. - Proficiency in accounting software and tools. - Excellent analytical and communication skills. This role is perfect for a professional who is adept in accounting and has a kee...
I'm looking for an expert in SEO and digital/social media who will be responsible for boosting my search engine rankings and enhancing engagement on social media platforms with...rankings and enhancing engagement on social media platforms with a focus on LinkedIn, fiverr, upwork and freelancer. My target audience includes web business professionals, companies, and freelancers. Ideal skills and expertise required: - Proven experience in SEO and social media management - Knowledge of LinkedIn marketing and engagement strategies - Understanding of young professionals and freelance market - Capability to increase engagement and improve rankings The project will be on a monthly retainer basis. Your proposal should detail your plans and strategies for boosting SEO and social me...
I am in need of a Python developer who is an expert in Django for a project that requires advanced customization of an existing Django project (DATING BACKEND). The ideal candidate should have experience in customizing and modifying existing Django projects to meet specific requirements. Skills and experience required for the job: - Expert knowledge in Python and Django framework - Good knowledge in GRAPHQL - Strong understanding of Django project structure and architecture - Proven experience in customizing and modifying existing Django projects - Ability to work with complex customization requirements - Familiarity with Django's templating system and ORM - Proficient in writing clean, maintainable, and efficient code - Strong problem-solving skills and attention to de...
*(DATING and SOCIAL NETW...problem-solving skills - Efficient performance optimization in large projects - Strong communication for collaborative development Mandatory; - React.js - GraphQL - - Team collaboration - Strong understanding of front-end development - You work 45 hours per week by sharing your screen during your shift - weekend available - You work on monthly basis incoms "no upfront" - You work on UTC time Please apply with your relevant experience and portfolio. (MIDDLE MAN OR AGENCY STAY AWAY) Your expertise will empower a community-connecting network that's rich in features and ready to scale. If you're eager to tackle this exciting challenge, I'd love to hear your strategy and see your portfolio showcasing similar projects. Let�...
Looking for a skilled IT professional to tutor me.
Seeking an urgent Freelance Solutions Architect to craft the roadmap for a Migration project. SPOC: Defining a comprehensive proposed solution approach and architecture for both React JS and Next JS options. Outlining various sprints and phases, along with expected outcomes from each phase (Project Execution Plan). Establishing a progress reporting structure. Structuring the team. Providing time and effort estimates for all roles involved.
...Integration: Ensure coordination between electrical and mechanical systems to avoid conflicts and optimize space utilization. Integration of electrical and mechanical systems with architectural and structural elements of the data center, including ceiling heights, floor penetrations, and equipment clearances. Collaboration with other disciplines such as fire protection, structural engineering, and IT infrastructure to ensure a comprehensive design approach. Documentation and Deliverables: Provide comprehensive shop drawings, including plans, elevations, sections, and details, in both digital and hardcopy formats. Include specifications, schedules, and material lists for all electrical and mechanical components. Submit drawings for review and approval by the relevant author...
...- Revise the layout and design to make it visually appealing and in line with industry standards. - Highlight my IT knowledge and experience, with a specific focus on SEO optimization, Social Media Management, and AI. Your primary aim is to make my CV stand out in the competitive digital marketing field, emphasizing both my marketing expertise and IT skills. It is crucial that the CV reflects my digital marketing capabilities, with a special emphasis on my understanding and experience with key IT concepts. Ideal skills and experience for this project include: - Expertise in crafting CVs specifically for digital marketing roles - Proficiency in the use of design tools and software to enhance the visual appeal of the CV - A solid understanding of key ...
