Vpn ubuntu using ppp0Jobs

I need a custom post type designed & developed that shows the RV data I have on the attached CSV. Each row of the CSV is a different model of Jayco RV. The purpose of the custom post type will be to allow RV shoppers to build and price the exact RV that they want to purchase. Once they select the options they want, they then fill out their contact info and submit their selections as a form. Attached is a screenshot of a competitor's page that uses the same concept, however their design is outdated and not very user friendly. I would like ours to be more modern and user friendly.

I am trying to see if cocaine can mask other medications like ibuprofen, tramadol and melatonin. so I would be required to consider the internal standards for these. I will be using GC-MS/ LC-MS/MS. will be using horse blood. samples as follows: blank blood sample blood with internal standards blood with cocaine blood with ibuprofen blood with tramadol blood with melatonin each blood sample will be made to 2ml. the internal standards will be added and then go through extraction stages to prepare the sample to be run on the GC-MS /LC-MS. 1. this is the plan that includes part of the methodology (above) - please change if information is wrong. 2. needs to include: Introduction ( small para) Literature review ( medium para good papers) aims and objectives research design and...

For my project, I need an expert who can set up aSite to Site VPN on AWS to access my Domain Controller. In addition, I need to establish a VPN setup using the AWS VPN protocol. This VPN will need to support connectivity for less than 50 users. Skills and Experience required: • Proficient in AWS and VPN setup • Familiarity with Windows Server 2019 • Ability to troubleshoot connectivity and security issues • Experience in managing user access for less than 50 users

I have a Ubuntu server which is working fine when visited using the port on the url like ; however i want the same to appear when visited url (without the port on the url) - 1st task is to configure the conf file so when visited it'll appear the same as on - 2nd task is to set up a SSL self signed wildcard certificate on the server so when visited domain it'll appear the same content as on // i'll send you the server login and the registrar login so you can edit the DNS yourself, then make the steps/cmd entered to appear on a txt file so i can replicate on another server

I need a skilled WordPress user & video editor to create private label rights (PLR) videos on how to build a WordPress website using Divi, Elementor, WP Bakery, & Visual Composer. - Essential Skills and Experience You must possess considerable experience in WordPress, specifically in Divi, Elementor, WP Bakery, & Visual Composer. - What to Provide in Your Application When applying, kindly share your experience directly related to this project. This is very crucial as it would determine your suitability for this project. - Project Specifics The focus of the instructional video should be on the use of Divi, Elementor, WP Bakery, & Visual Composer to build a WordPress website. You must show the options to create headers, footers, and the various options for head...

I'm looking for a developer to create an interactive, web-based Laundry Management System. Expertise in web development, payment integration and real-time tracking is essential for this project. Key Features to include: • Real-time tracking of laundry status: This is crucial for keeping customers updated and enhancing transparency in our services. • Online payment integration: Seamless payment gateways that are secure and user-friendly will make it easy for customers to transact. • Customer portal for placing orders: A simple, uncluttered portal is needed, where customers can place their laundry orders without any hassle. • Wallet system to recharge: This will allow customers to pay for services conveniently. I would like the user interface to be interactive wi...

I'm looking for a talented team to bring my vision for a single-player, action-packed mobile game to life. Here's what I need: - **Game Prototype Development** - Creation of an engaging action game prototype specifically designed for mobile platforms. - Focus on innovative gameplay mechanics and smooth controls tailored for touch screens. - **Trailer Production** - Development of an exciting game trailer to showcase the game's concept and hook potential players. - **Required Skills** - Proficiency in Unreal Engine. - Game Designing Skills - 3D Modelling - Strong experience in mobile game development. - Portfolio showcasing previous action games is highly desirable. - Ability to create engaging game trailers. The ideal team will have a proven track re...

...seeking a skilled freelancer to create a Virtual Private Network (VPN) to facilitate secure remote work access for my small team. My aim is to provide a stable and secure environment for our remote operations, minimizing risks while maintaining high productivity. Ideal Candidate Skills: - Expertise in VPN technologies - Working knowledge of TPLink er605 as standalone VPN router - Experience with network security - Proficiency in multi-factor authentication systems - Knowledge of cross-platform device compatibility - Ability to ensure high-speed connectivity without compromising security Responsibilities: - Develop and implement a custom VPN solution - Configure strong multi-factor authentication for users - Ensure the VPN is compatible with various ...

My server is a VPS hosted by Contabo.com. The VPS runs Virtualmin/Webmin with Ubuntu Linux 20.04.5. Locally, I run Thunderbird on an iMac with Venutura 13.6.3. The outgoing server is Gmail, because I keep getting an error message when I select my own server to send emails. The message is: Sending of the message failed. Unable to communicate securely with peer: requested domain name does not match the server’s certificate. The configuration related to must be corrected. The SSL certificate appears to be valid. It's a Let's Encrypt SSL that auto renews every 3 months. I've tried changing the port, changing the outgoing server to instead of , but still the error appears. I'm able to send emails via

We want the software to do the below stuff: It should generate Btc Fake Transaction(flash btc) with the below features: - -Defined the time that the transaction can remain in the wallet - -Defined the charges of the blockchain networks for a quick confirmation - -VPN and TOR options included with proxy - -Can check the blockchain address before transaction - -Transaction can get full confirmation - -Support all wallet - -Segwit and legacy address – -100% confirmed transaction - You can spend bitcoins easily on any other address (Segwit address, legacy, Segwit / bch32) - - it works with all wallets. - -Should be tradable like real btc. withdraw from exchange not necessary Can be transfarable wallet to wallet more then 5 times minimum previousr experience are preferred

I want PHP and MYSQL to be installed on my Linux VPS using Ubuntu and Apache. Here are the specifics: - PHP version: 5.3.10 - MYSQL version: 5.7.4 I will share with you the existing server's so you can see the extensions used, eg. APC, mbstring, mcrypt, memcache, etc.

ONLY APPLY IF YOU CAN DO IT in 24 HOURS. I am seeking a skilled Figma designer to assist with updates to our project's design. The primary focus will be on revamping the homepage and enhancing its functionality to align with our evolving requirements. This task demands a high level of proficiency in Figma, along with a creative eye for modern design trends. Key Responsibilities: Assess the current Figma design and identify areas for improvement. Redesign the homepage to make it more user-friendly and visually appealing. Implement functional changes as required to improve user experience. Collaborate closely with our team to ensure the design aligns with our vision and requirements. Requirements: Strong portfolio showcasing expertise in Figma and design skills. Ability to work und...

I'm looking for a skilled freelancer to develop an automated testing framework for our servers using Ansible and Python. Here's what you need to know to craft a targeted proposal: - **Objective**: - Automate functional testing for our Linux servers to ensure robust performance. - **Scope**: - Implementing Ansible playbooks and Python scripts. - Establishing tests to validate server functions. - **Hardware**: - Linux servers, variety of models and configurations. a) validate/download firmware from Dell b) validate/update/force firmware re-install via Dell iDRAC onto the platform c) trigger PXEboot/"validation OS" install onto machines {Ubuntu 22.04.6 LTS} (possibly in-memory OS, TBD) d) run basic (Linux 'stress' or 'stress...

I'm looking for a skilled developer to enhance my Traccar platform's user interface and integrate a new custom dashboard. Below are the specifics I need: - Custom dashboard development: - Implement real-tim...display - Integrate device management controls - Include reporting and analytics tools - UI modifications: - Complete overhaul of current UI layout - Customization of the platform's color scheme I need this project completed within 3 days from the start date. Ideal candidate should possess: - Proven experience with Traccar platform - Expertise in UI/UX design - Proficiency with AWS and Ubuntu servers - Ability to work under tight deadlines Those with previous projects involving Traccar will be considered first. Please reach out with your portfolio...

I'm looking for a skilled developer to enhance my Traccar platform's user interface and integrate a new custom dashboard. Below are the specifics I need: - Custom dashboard development: - Implement real-tim...display - Integrate device management controls - Include reporting and analytics tools - UI modifications: - Complete overhaul of current UI layout - Customization of the platform's color scheme I need this project completed within 3 days from the start date. Ideal candidate should possess: - Proven experience with Traccar platform - Expertise in UI/UX design - Proficiency with AWS and Ubuntu servers - Ability to work under tight deadlines Those with previous projects involving Traccar will be considered first. Please reach out with your portfolio...

I'm in urgent need of an expert to diagnose and resolve an issue with my website. Running on an Ubuntu server, it's currently displaying persistent "Internal Server Error" messages to visitors. Here are the critical specifics: - The server is Ubuntu-based. - I am unsure about recent changes that might have caused this issue. Required Skills: - Proficiency in Linux, particularly Ubuntu. - Extensive experience with Apache/Nginx and server management. - Troubleshooting skills for "Internal Server Error" messages. - Knowledge of PHP, as it may be a script issue. - Capability to analyze server logs for diagnostics. Ideal Experience: - Previous successful fixes of similar errors. - Understanding of server security best practices to check for ...

I'm seeking an experienced freelancer to assist with migrating my app server from a Linux platform to Amazon Web Services (AWS). Key Responsibilities: - Ensure seamless transition with minimal downtime - Implement standard migration practices to maintain the integrity and performance of the applications during the transfer Ideal Skills and Experience: - Proficient in Linux (Ubuntu) and AWS - Proven experience in server migration projects - AWS certification would be an added advantage Please note, any specific requirements for this project were not identified, therefore a solid understanding of general server migration processes is essential. Freelancers with a broad skill set able to address potential issues around database support, high-volume traffic, and security are...

...Proxmox 8.1 environment. This project involves the installation and configuration of specific software on each VM ensuring they are fully functional and accessible over the internet. Tasks include: - Install Ubuntu 22.04 Desktop VM for general use. - Set up a second VM with Ubuntu 22.04 and Plesk to host a corporate WordPress website. - Ensure both VMs are configured with internet access via OpnSense firewall and Zenarmor. - Provide detailed steps documenting the installation and setup process. Skills and Experience: - Proficiency in Proxmox VE and VM management. - Experience with Ubuntu server and desktop environments. - Knowledge of web hosting with Plesk and WordPress setup. - Familiarity with network security, OpnSense, and Zenarmor. - Clearly communicate tech...

I'm in the midst of trying to finetune a Mist...hitch. I'm struggling to merge the lora with the base model. Each time I attempt to do this, I am greeted with an error message about 'peft_type', a term with which I am not familiar. The specific error is KeyError: 'peft_type'. Regrettably, I don't have much further information on this 'peft_type' error. For those wondering about the technology stack on this project, I'm working with Python on an Ubuntu 22, cloud-based server. Attached is my actual script Skills and Experience: - Deep understanding of Python and its application in machine learning - Proficiency with Mistral 7b model - Ability to troubleshoot and rectify 'peft_type' KeyError - Experience with cloud-based s...

In this project, I am seeking a freelancer with a great understanding of electronics prototyping and Eagle software. Your main task will be to convert PDF files into Gerber and other relevant files to create a multi-layered circuit board. The goal here is PCB layout optimization and successful circuit board production. Ideal Skills and Experience: - Expert in using Eagle for PCB design - Past experience with electronics prototyping - Knowledge in creating multi-layered PCB designs - Understanding of Gerber and other relevant file formats.

...to establish and configure 2 Linux-based LAMP server tailored to my specific requirements (1 main server + 1 backup configured to take over via DNS). - Install and configure a LAMP stack on a Linux server (Ubuntu 22.04) - Set up Webmin and Virtualmin for server management - Ensure Apache is the web server software installed and properly configured - Establish a secure environment for a web server - setup database and phpmyadmin - filesync between the 2 servers - database master-master configuration Ideal Candidate Profile: - Proficient with Linux server installation, specifically Ubuntu - Experienced in LAMP stack setup and Apache configurations - Familiarity with Webmin/Virtualmin for server control - Quality-focused with an emphasis on security best practices Your ex...

I will write code to implement a wifimanager to handle the pairing of device to a wifi.

...expertise in building robust VPN applications. Here's what I'm envisioning for this project: - **Core Development**: Tailor a secure, efficient VPN application. - **Target Domain**: The app is catered to the education industry. - **Key Functionalities**: - Online courses access through the VPN. - Management of student enrollments. - Systems for grading and assessment. **Ideal Skills**: - Proficiency in Java programming. - Experience in developing VPN solutions. - Knowledge of education software systems. **Experience Required**: - Proven track record in app development, especially in Java. - Previous work on educational or VPN-related projects is a plus. Looking for a highly skilled and passionate individual committed to deliv...

I am currently facing a critical issue where I am unable to connect to my DigitalOcean droplet. I need a skilled server administrator to resolve this connectivity problem urgently. Here are the details you'll need to know: - The droplet is not accessible at all. - It's running on Ubuntu. - I cannot access it via SSH. The ideal candidate for this job should have: - Proven experience with DigitalOcean platforms. - Proficiency in managing Ubuntu servers. - Expertise in troubleshooting and resolving SSH connectivity issues. - Ability to communicate effectively and provide a swift solution. If you have the required skills and can work promptly to restore access, please submit your bid. Your prompt assistance will be greatly appreciated!

I am seeking a talented developer to craft a user-friendly iOS VPN app tailored to enhance user privacy with essential security. Here's what I envision: - User interface needs to be clean and intuitive, presented in Standard English. - Ads and in-app purchase. What I need you to bring to the project: - Proficiency in iOS app development (Swift/Obj-C) - Understanding of VPN protocols and encryption - Experience with UI/UX design for mobile platforms - Proven track record of developing secure mobile applications - Good communication and ability to adhere to deadlines - Submit to my apple developer account. I believe in clear and concise collaboration, so let's create something remarkable together that privacy-concerned individuals will rely on daily!

...install on an Ubuntu Server environment. This must be an opensource solution. The following client environments must be able to interact with it: * Desktops - Windows/Apple (Linux maybe?) * Mobile: Apple IOS / Android The chat software must authenticate to our LDAP server. We are using Samba 4 Active Directory / Domain Controller For the voice / video portion, it must use Jitsi technology. However the chat software is where user authentication will initiate and chat software will be the first / initial interaction between users. Once they are engaged in chat they will have the ability to engage via voice or video. When completed you must provide clear step by step documentation / instructions on how to install and configure the end product on our server. We wi...

Hello from Australia. I’m an amateur Astrophotograoher. I’ve watched some videos where Adobe After Effects was used to generate a 3D/VFX video of said images. I want to do the same. This video tutorial shows exactly how I want it to look like: stars popping up etc: Please let me know if you can do this. Preference for someone who already worked on this before. I’ll provide image later ? I’d like the work asap please. Thanks, Rod

As an Instagram channel owner, I'm searching for a skilled content creator ...along with the ability to generate three posts daily. Job will be a month long at a time. I may rehire if job is done to my liking. Key Responsibilities: - Source entertaining video content focused on comedy, mens entertainment, cars, women, funny news, memes “could source content from tiktok” - Create 3 daily Instagram posts featuring these videos. -must post using a vpn with a location from the United States -brand the videos using a template with my channel name Ideal freelancer should possess: - Excellent understanding of Instagram platform - Experience in curating and posting comedy video content - Ability to work independently and meet deadlines - Prior experience ...

I'm looking for a capable web development specialist to create a cutting-edge, sleek and modern website that enables users to invest in real estate as a crowd. Important features are: - User registration and login functionality: Users need to register and log in to access the platform. - Property search and listing: Users should be able to search and view listed real estate properties to invest in. - Investment tracking: An admin panel should enable investors to effectively monitor their investments. Our target audience spans both individual investors and real estate professionals, catering to a broad market. A reference for what's in mind will be shared, however, creativity and adeptness with up-to-date design is crucial. Proficiency in user interface design, user experience c...

I'm currently in need of a talented website designer who is proficient in Figma to create an e-commerce platform that stands out in the digital marketplace. The following outlines my specific needs for this project: - **E-commerce Focus:** The site will serve as a storefront for a diverse range of products and needs to facilitate a secure and efficient shopping experience. - **Desktop-First Design:** Emphasis will be placed on creating a responsive user interface that prioritizes desktop users, while still ensuring functionality across all devices. - **Critical Features:** - User Account System: Enable customers to register, log in, and manage their accounts seamlessly. - Advanced Product Search: Incorporate filter options to streamline product discovery. - Secure Payment ...

configure a simple vpn IPSec-l2tp. Only people with large experience in vyos.

If you're an expert in setting up CI/CD pipelines using Github Actions, this project is perfect for you. I am looking for a freelancer with extensive experience in this area. Job Requirements: * Set up a CI/CD pipeline that deploys to an Ubuntu server. The specifics of what I need automated may be discussed in more detail later on. * Please note that the coding language of the project has not been specified. Application Requirements: * Show off your experience: Any past experience you have in setting up similar Github Action pipelines would aid in my decision-making process. This is a great opportunity to exhibit your proficiency in Github Actions and infrastructure as code. Looking forward to receiving your applications!

We are using SIP account using Centos for Linphone ..TCP already configured however with 5g connection sometimes calling doesn't work. We need an expert who can setup/Enable TLS on it. Linphone sdks are installed on both iOS/Android and backend.

...----------------------------------------- 1. I want to add video with thumbnail, added video needs to be represented by the first product gallery thumbnail, but when starting viewing the listing, the main product of photo should be displayed first, as it appears behind slider. will by using premium jetpack VideoPress for this ( thumbnail video as dimensions of video should be same 920x1200) (no sound, autoplay) ------------------------------------------ 2. Get it by date - works by default visitors country (if they use vpn there is menu to change there country like seen on image) - if you curse mouse (click on date on phone ) - pop up message that can be clicked to link Returns exchanges accepted - pops up message that can be clicked to link (same as get it by date) cust...

To be able to login to site A using site B login form and initiate session in site A and send user to their dashboard.

...a skilled developer to aid me in my Linux Thin Client project. The primary objectives of this role are to facilitate simple WiFi disconnections and ensure RDP access is maintained consistently. Key Tasks: • Enable easy WiFi disconnection • Establish and provide stable RDP access • Ensure optimal integration of Linux and RDP Our project demanding compatibility with Lubuntu, rather than with Ubuntu, CentOS, or Fedora, knowledge with working on this specific Linux distribution will be highly valued. In terms of hardware, the requirements for this project span across: • Minimum RAM requirements • Minimum storage space needs • Minimum processor speed Therefore, having expertise in optimizing system development with hardware constraints in mind wou...

I'm in need of a highly skilled Java developer, with significant experience in Wireguard VPN configuration, to set up a VPN server and configure VPN clients on TP-Link Archer AX50. Specific tasks will include: - Initial setup of the Wireguard VPN server - Configuring the Wireguard VPN client This will be performed across a range of operating systems - Windows, Mac, and Linux. Therefore, knowledge and experience in these systems is essential for this project. The right freelancer for this job will not only be adept in Java development, but will also have an in-depth understanding of networking and VPN configuration, specifically Wireguard on TP-Link devices.

Looking for a Single Vendor B2B website selling packaging material to business clients in India All basic features of an Ecomerece site with specific features such as 1) Offline Payment ( Display b...print on cups ) , if our client have option to design, upload there own bags and checkout normally . 9) Orderconfirmed and client shipping page ( DTDC, Delhivery, VRL courier company tracking on our page . 10) we have multiple size and multi qty products. 11) GST bill to be sent to customer automatically These are basic things we need . More details: Which programming languages are you open to using for this project? Laravel,ReactJS,Flutter What is the main purpose of the eCommerce website? Sell products/services Who is your target audience for this B2B eCommerce website? Small ...

I am facing problem in my website, Website is build in laravel, user are not receiving otp via email, so they're not able to login in their account. Website is setup on Linux ubuntu, Developer must know how to manage "SSH" to login and manage server. Rest details will be shared in chat

More details: What is the purpose of integrating the PhonePe payment gateway in your existing Android app? To replace the existing Paytm integration Should the PhonePe payment integration support specific transaction types? One-time payments,Recurring subscriptions Do you have the necessary documentation and credentials for integrating the PhonePe payment gateway? Yes, we have all the documentation and credentials

I'm looking for an experienced developer who teach me how to integrate a node app and a NextJS app into the Azure DevOps pipeline. You need to have: - Proficiency in JavaScript - as this is the primary programming language for the project. - Extensive experience with Git - as this is our chosen source control management. - Expertise in Continuous Deployment - with a deep understanding of Azure DevOps. - Experience in developing acceptance flows, with a deep understanding of how to incorporate stakeholder approval into the deployment process. - Experience in Attaching Features from the board to feature branches - Experience in setting up monitoring The task at hand will involve synchronizing our platform with the Git repositories and setting up Continuous Deployment inside Azure De...

I am seeking a skilled Flask and JS web developer who is eager to support me and grow together. Have you coded using these? - Flask - JavaScript - Apache Cordova - Ubuntu - Tailwind CSS - SQL Experience: Substantial experience in Flask and JS web development is essential. Familiarity with creating web applications that seamlessly integrate with a variety of third-party services. Let me know what you can do and your hourly rate. Thank you! :)

I'm seeking a highly proficient PPC expert with extensive experience using SpeedPPC to create and manage a campaign with the objective of boosting sales for using Google Ads. The ideal freelancer would bring firsthand experience in managing successful PPC campaigns specifically using the SpeedPPC app. **Key Project Details:** - Objective: Increase sales of digital products - Platform: Google Ads **Requirements:** - Strong track record with Google Ads - Extensive experience using SpeedPPC - Proven ROI on PPC campaigns - Experience in digital product sales is essential - Ability to analyze data and optimize accordingly - Strong communication and reporting skills **Your responsibilities:** - Campaign Setup: Implement a SpeedPPC campaign tailored for law...

I'm seeking a proficient Node.js developer to bring my project to life. Here are the essentials: - **Server-side Development**: Crafting a robust backbone for my application. - **API Integration**: Seamlessly connecting with other services and ensuring efficient data exchange. - **Real-time Data Processing**: Implementing mechanisms for instant data handling and responsiveness. **Key Skills**: - Proficient in JavaScript, specifically with Node.js frameworks. - Experience with both consuming and deploying APIs. - Capacity for developing real-time data processing functionalities. **Project Goals**: - Execute JavaScript code effectively on the server-side. - Achieve flawless API communication. - Ensure user interface remains responsive and interactive. *Looking for an individual ...

...skilled network professional to establish a secure site-to-site VPN for two locations. With an emphasis on security and reliability, this connection will allow us to transfer sensitive data between our primary and secondary facilities seamlessly. Requirements: - Strong expertise in VPN technologies. - Experience with configuring routers for VPN. - Knowledge of encryption protocols and security practices. - Proven track record of successful site-to-site VPN implementations. Ideal Candidate: - Has set up secure VPNs for similar-sized companies. - Can provide references or portfolio of previous networking projects. - Certified in network security (e.g., CCNA Security, CISSP). Expectations: - Securely connect two locations via VPN. - Ensure minimal down...

I plan on installing Netbox for DCIM project, this will be a lab where we test deployment as docker and as direct on Ubutu for production enviroment. Key Responsibilities: - Installing Netbox via Docker and on Ubuntu - Configuring 4 racks with detailed equipment and OFD layouts - Establishing visual cable tracing between devices and OFDs - Implementing automated circuit creation and real-time connectivity status, if feasible - Adding circuits and configuring power equipment Ideal Skills: - Proficient with Netbox - Experience in both Docker and Ubuntu installations - Strong understanding of physical network infrastructure, including racks and OFDs - Ability to create visual documentation of data center layouts Experience: - A history of successful Netbox installations -...

Discussion about buckling analysis using ANSYS

Ubuntu + Apache + Tomcat server configuration Task to be accomplished: - SSL certificate installation (We will provide required files) - Apache and Tomcat configuration - Docs folder access security configuration - Configure some URL redirections and check these work properly Please refer to attached document for details.

I'm seeking an experienced developer to create a tool that will facilitate bidirectional data transfer between a MySQL database and Excel files. The tool must be built using PHP and be capable of handling both imports and exports efficiently. - **Import/Export Requirements:** - Must support importing data from MySQL to Excel (.xlsx format). - Must support exporting data from Excel (.xlsx format) to MySQL. - The system needs to handle specific tables and columns, which I will specify. - **Ideal Skills and Experience:** - Strong PHP development skills with a focus on data manipulation. - Proficient in SQL with a good understanding of MySQL databases. - Experience with PHPExcel or similar libraries that handle Excel file formats. - Clear understanding of Excel file...

I'm seeking an experienced Qt/C++ developer with a deep understanding of the QGIS API to create advanced custom widgets for a project I am working on. This project is essential for enhancing the user interface of a geospatial application with interactive map displays. **Requirements:** - Create custom widgets for QGIS using Qt/C++ - Widgets should enable interactive map displays - Implement drawing tools for shapes and lines - Integrate distance and area measurement tools - Facilitate dynamic layer toggling and management within the map **Ideal Skills:** - Proficiency in Qt framework and C++ programming - Previous experience with QGIS API - Knowledge in developing geospatial data analysis tools - Experience in creating user interaction elements for maps - Strong understandi...