Set folder permission linux server jobs

Hello, I want to set up a binary options site. It will be exactly like the IQ OPTION site. I would appreciate it if friends who have experience in this field could write and contact me. Friends who can do the installation, including the script, I am waiting for an offer from you, thank you. I WOULD LIKE TO REQUEST THE SCRIPT AND INSTALLATION FEE. IF YOU HAVE ONE, COULD YOU SHARE A SIMILAR PROJECT YOU HAVE DONE BEFORE? THANK YOU. I have attached the site script and similar ones, I would appreciate it if you could take a look.

As someone requiring a Linux Server Administrator with AWS expertise, I require specific support with server maintenance and updates - specifically involving an Apache environment. Your role will entail ensuring optimal performance and uptime. A diverse skill set including the following is vital: - Proficiency in Linux server administration, particularly within an Apache environment - Knowledge on server maintenance and updates - Capability to handle AWS resources management and environment We are looking for a Linux server administrator with expertise in AWS to manage our server infrastructure. The responsibilities include ensuring the smooth operation of the servers and addressing any issues that may arise within ou...

...assignment, you will implement Vector Based Models to rank academic research papers. Refer to the code and dataset that can be downloaded from the zip file here. The code is written and tested in Python 3.10. The dataset consists of 8K research papers (or documents) and 100 queries downloaded from Semantic Scholar 1 . The zip file consists of: 1. file 2. file 3. 4. s2 folder with: (a) s2/s2 : All (8K) research papers in the corpus. Each research paper has 3 fields. i. docno: A unique document id for each research paper ii. title: Title of the research paper iii. paperAbstract: Abstract of the research paper A single paper entry looks like: { "docno": "6e4eddf4d6671c37537bb5d1c9623353b62e8531", "title": [ "Duality Theorems for Finite Structure...

This error has been traced back to the Apache webserver, it is a PHP and WordPress error "Please check that the mysqli PHP extension is installed and enabled." Key tasks for this project include: - Identifying the root cause of the 'Internal Server Error' message - Resolving the issue promptly to restore the website's functionality Ideal Skills and Experience: - Proficiency in PHP and Apache webserver - Strong experience in debugging and resolving 'Internal Server Error' issues - Excellent problem-solving and communication skills

...If they email their NoteHero *the SUBJECT LINE* they use will auto create and sort the "note" (email body) into a new folder matching the name of the subject line - if they text their NoteHero *they will use a #* that will auto create and sort the note (anything before the hashtag) into a new folder matching the name of the # *in both cases once a folder is created, if the subject line or # is used again, notes will be sorted to that folder *Third Feature* A simple input box feature where users can have NoteHero send them an email or text with the in out of their choice, for example, text me at 10am to write 10 things i'm grateful for today and send to my gratitude folder or email at 9pm to review my day and plan for tomorrow. I am lo...

I'm currently experiencing several issues that strongly suggest a malware issue on my apache server. My website's performance has seriously declined, and much to my disturbance, Google has flagged my site as dangerous. I haven't taken any steps yet to resolve these issues so now I'm seeking professional help. To be successful in this project, you will need: - Expert knowledge of Apache servers - Strong experience in malware removal techniques - Excellent understanding of domain whitelisting - Safety assurance to recover my domain status on Google I'm looking forward to making my website perform faster and being flagged safe on Google and other antivirus platforms.

Please read completely before placing a bid ! Please bid only if you also plan to respond... Please someone who is intere...:) -source code, commenting on the source code properly ! -expandable ! -API usage -work with rss feeds -Periodic check if files still complete -option for hidden autostart -The program is supposed to download a certain sort of links like url use with an browser or pdf with an pdf viewer -rar/7zip support -multipar support () -automate posts by scanning folder(s) -auto delete files/folders once posted -full obfuscation of the Article Header -support several servers -Header check -Schedule posting -create backup plans as automation work flow -more..... Since you have read everything, please write the word "Pirate" in the offer ;-)

...shared hosting server, which currently manages to support up to 100,000 concurrent users. As my requirement increases, there's a need to further improve its ability to handle more. My server largely deals with devices on the ground, transmitting continuous data back to the server, and the sheer volume of synced devices can lead to server strain. I require a professional who has: - Expertise in server management and optimization - Proven experience with scaling shared hosting servers - Knowledge related to server load balancing - Proficiency in data flow optimization Your task would include the analysis of the current setup, troubleshooting potential bottlenecks, and implementing successful changes to increase concurrent users. Please hav...

Hi Ganesh D., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

...Extraction of product information such as Reference, type, value, bedroom, suite, garage, land area, useful area, total area, neighborhood, city, address, description, name of the condominium, development, pickup, registration date, date update, website, owner name, owner email, owner phone, owner category. pickup owner. - Download all images related to each product and save them in a separate folder named according to the product code reference. Ideal candidates will have demonstrated experience in web scraping, data mining, and handling a substantial volume of data extraction for digital products. Proficiency in automated image collection and classification is mandatory, along with familiarity with accessing various platforms to retrieve required data. Your efforts will signi...

I need an expert with in-depth experience in ZFS pool management on a Linux operating system. The data lost from the corrupted pool wasn't critical to our operations, but we primarily stored databases, and the loss was still a hassle. Your main responsibilities would be to: - Investigate the root cause of the pool corruption and provide a detailed report on your findings. - Suggest and potentially implement steps to prevent such incidents from happening again. Ideal skills and qualifications: - Extensive experience with ZFS and Linux systems. - A history of troubleshooting and resolving data corruption issues. - Prior experience with database storage and recovery. - Strong problem-solving capabilities. - Excellent communication skills to explain complex technical conc...

I'm in need of a freelance Node.JS expert to help me with my Node.JS server setup. - Ideal candidate should have extensive experience in setting up and configuring Node.JS servers. - Knowledge of web and mobile application architecture is a plus. - Preference will be given to those with previous experience in API backend development.

...Science or related fields (2021 & 2022 passout only)? Are you passionate about programming languages and eager to make your mark in the IT industry? Look no further! We’re hiring talented individuals to join our dynamic team. Position: Software Engineer Domain: Finacle (Banking) Location: Major cities in India and international locations Why Choose Us? Comprehensive end-to-end training in Unix/Linux, JSP, HTML, Core Java, Node JS, Node red, Oracle SQL, and PLSQL. Exciting projects in the banking domain Opportunities for growth and career advancement Terms and Conditions: Commitment: Minimum 3 years with us Training: First month (free accommodation), followed by competitive salary Performance-based increments from the second year onward Global travel opportunities ...

I'm in need of a skilled professional with a solid background in Apache and Linux web server management and PHP. - The task is to migrate my current Apache web server, which is running on a Linux platform, to a new and faster server. - You should have strong experience in Linux systems, Apache servers and PHP. - Experience in server migration is highly desirable. - Knowledge of best practices for optimizing web server performance is a must. There are any business Domains and any Email Accounts running on it. All this must Work again 1 to 1. Also setup cpanel with New Webserver

I'm in search of an experienced Radius Server Developer who can take on a comprehensive project. create a radius server that can communicate with OLT, ROUTERS AND VM on HUAWEI, CISCO, FIBERHOME, VSOLUTION, MIKROTIK, UBIQUIT and others through PPPOE, VLAN, IPOE, HOTSPOT ETC

My current server setup is causing slow response times for my web application and database system. This project involves optimizing the server settings to enhance the performance of both the web and database applications. Ideal Skills and Experience: - Proven experience in server performance optimization - Expertise in managing servers running web applications and database systems - Familiarity with Laravel, as the web application is built using this technology - Excellent understanding of server-side technologies and configurations Key responsibilities: - Diagnose the current server setup to identify performance bottlenecks - Implement necessary changes to optimize the server settings - Regularly monitor and fine-tune the server to maint...

I have a list of 1001 organizations in a spreadsheet, and each organization has a unique number. For each organization the Freelancer is required to copy and past this unique number into a search bar on In each ch...video. These are .pdf documents. - The organizations governing document downloaded (located at bottom of page) and renamed, as per the attached video - The organizations constitution downloaded (located at bottom of page) and renamed, as per the attached video In total there should be nine documents per organization. I then require these nine documents to be saved in a folder on my Google Drive with the folder name being that of the organization. In total there will be 1001 individual folders with approximately 9 files in each.

...experiencing a recurring problem with my Linux web hosting server. The issue essentially revolves around the Apache service, which keeps turning itself off and on sporadically. This continuous fluctuation is causing disruptions in the operation of my hosted websites. The primary goal of my project is to address and resolve this persistent Apache service problem. I need a skilled server administrator or a Linux system expert to investigate the root cause of the Apache's erratic behavior and implement a permanent fix for the issue. Key Requirements: - Proficient in Linux server administration - Expertise in Apache server configuration and troubleshooting - Experience with identifying and resolving service disruption problems - Abilit...

We do decorative facades changes to two buildings out of these 4. Building 2 : we add decoration to the GF balcony as per pic Bat 3, 1, 10001 and 3 Building 3: we modify openings and a few decorative features for this as per pic Bat 3 output : modified skp file only. no renders current model : ask for permission to dowload. Confident sketchuppers only please! amateurs please abstain.

I'm in need of an advanced photo editing tool that allows for image cropping and Photoshop level editing. The primary requirement though is the ability to insert objects into images. Key Requirements: - Compatibility: The editor should run on Windows, MacOS, and Linux. - Features: Image cropping and a level of editing akin to Photoshop are essential. - Object Insertion: The ability to add objects to images is a key requirement for this project. Ideal Skills and Experience: - Proven experience in creating or customizing advanced photo editing tools. - Strong understanding of Photoshop level editing features. - Familiarity with object insertion tools. - Cross-platform development experience would be a plus.

I'm looking for an expert to help with uninstalling Windows Server 2016 (evaluation mode) and installing Windows 10 Pro on my laptop. Here are the specifics: - I'm seeking this migration for personal use, as I find Windows 10 Pro more suitable for my needs. - I've confirmed that there's no necessity to back up any data before the migration. Ideal Freelancer: - Proficient in Windows Server and Windows 10 Pro migrations - Can ensure a smooth transition without data loss - Able to advise on or assist in obtaining a Windows 10 Pro license, as needed.

...advanced security features like LESC, and using systems such as, or similar to, FIPS 140-2 and AES-SHA256 cryptography. I would like to have copies of any written source code that is created by you or any details on the tech stack, SDK and APIs used. As the app could be using Bluetooth or BLE, I want users to be able to send and receive data without the requirement of having to prompt for, or give permission for, a “pairing” or “connecting” of devices each time they wish to send or receive data. If BT or BLE is to be used, the developer must have a high level of understanding of the various pairing and connection processes of BT and BLE, which involve STK, LTK, Legacy, SSP, LMP, Passkey, OOB, MITM and Numeric Comparison. I would require a very basic MVP to...

...well-versed in the Linux operating system and Apache web server. The primary task is to configure and implement a Letsencrypt SSL certificate. Key Project Deliverables: - Install and configure Letsencrypt SSL certificate on my Linux server running Apache - Implement automatic renewal for the Letsencrypt certificate - Provide guidance on manual renewal of the certificate in documentation - document on how you installed as well Note: see attached screenshot on what we did to try to install. It shows SSL is there when you go to browser and access SSL. However, when doing payment with Stripe I get error of invalid SSL. Would be good to know why. Ideal Skills and Experience: - Strong background in Linux system administration - Proficiency in configurin...

We need a Wordpress site built out to match our Photoshop design. A PDF of the design is attached, the Photoshop file and resources will be provided after we start the project. Looking for someone to start on this ASAP. Project details are below. * We want someone to work on thi...of the site from previous year's and the type of animations they are expecting: 7. For the 'Project Highlights' section, each image should open a modal with details on the project. These details are found in the 'Project ' document, with additional images in the ''Project Photos" folder 8. All images will be provided in a Google folder 9 Will provide Wordpress and FTP access Thanks and let me know if you have any questions

I'm in need of an expert in c who can design and integrate GTK-based project. The project aims to enhance the GUI design and user experience. Key Requirements: - Experience in GTK: Prior experience in GTK-based software development is crucial for this project. - Cross-Platform Application: The final product should support Windows, Linux, and MacOS. Ideal Skills and Experience: - Proficient in GUI Design: The ideal candidate should have a strong background in GUI design and development. - Familiar with Motif Libraries: Prior experience in creating and integrating motif libraries is highly preferred. - Knowledge of GTK: Experience in GTK-based projects is a significant advantage. - Cross-Platform Development: Understanding of cross-platform application development and compati...

I'm seeking a...with relevant experience in PHP scripting, Google Ads API and Windows OS to provide me with a script that will help with my Google Ads functions. This functionality entails both Keyword Planner integration and a Server-to-Server flow setup. Your tasks will be: • to integrate the Google Keyword Planner into the script, • to set up a server-to-server flow on a Windows operating system, • to ensure compatibility with PHP 8.0. Your understanding of Google Ads API for keyword planning and server interaction flow will be pivotal to this project. Prior experience with these tools will set you apart. Efficiency, accuracy, and an application that runs smoothly are key to the success of this project. Please be ...

I need an experienced specialist to configure my ESXi server, specifically focusing on storage settings and virtual machine settings. Skills and Experience Required: - Solid experience with ESXi server setup - Storage configuration skills - Familiarity with Virtual Machine settings Tasks Include: - Configure local storage on ESXi server - Set up virtual machine settings for 1-5 machines Having previously worked on similar server configuration tasks would be an added advantage.

I'm looking for a talented 3D artist to design a modern, sleek bag, suitcase and combo set for an upcoming product line. The designs should encapsulate a sophisticated and contemporary aesthetic that appeals to a stylish, discerning clientele. Although I didn't specify an emphasis on any particular features, creativity is encouraged! Ideal skills & experience would be: - Proficiency in 3D modeling and design, preferably with a portfolio of similar work - Strong understanding of modern design principles - Ability to interpret and execute creative vision - Excellent communication skills to facilitate the design process. We are looking for someone who will make a nice suitcase and a bag like a set. We have the idea but we want to modify it, so we need someone...

I'm looking for a professional who can assist in the successful installation of Open Journal Systems (OJS) on share hosting system without any errors. Key responsibilities include: - Setting up OJS on a Linux environment, ensuring it runs smoothly - Configuring OJS to work correctly under the Linux operating system Ideal skills and experience for this job would include: - Proficient in Linux system administration - Prior experience with OJS installation - Strong communication skills to provide clear guidance on the installation process. one day job . work will only release when project complete without any error

I'm urgently looking for someone with advanced proficiency in React 18.0.0, Traefik Kong, and Spring API to help me proxy React requests to my Spring API. Sadly, I've encountered a CORS roadblock that needs a quick resolution. The project's environment is on a Linux server and involves a multi-container Dockerized application. Ideal skills and experience: - Strong command of React 18.0.0 - Proficiency in Spring API - Experience with Docker - Extensive experience with Linux server management - Knowledge and experience with Traefik Kong to manage CORS issues in this kind of implementation. Please Note: You should be well-equipped to solve potential causes of a CORS roadblock. This project needs immediate attention. Hence, availability to start...

I'm seeking a professional who can take on the role of a webmaster and also manage our dedicated server. Key Responsibilities: - Ensure the website is running smoothly by performing regular maintenance. - Updating website content as needed. - Undertake back-end development tasks to keep the site functional and efficient. - Handle the server management, particularly in terms of maintenance and updates on a weekly basis. Ideal Candidate: - Proven experience as a webmaster - Proficiency in back-end development - Prior experience with server management, especially dedicated servers - Able to commit to weekly server maintenance Your bid should reflect your experience in both webmaster tasks and server management.

Hi Fadl Rahman E., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

Using a data set filter data to another set to show case dashboard metrics and KPIs

I am in need of an expert developer to build a loan management software with certain essential features. The system should be able to: - Process loan applications efficiently. - Manage borrower information accurately. - Track loan repayment attentively. - Compute and manage profit and loss. - Monitor expenses effectively. Moreover, the developed software should also h...a user-friendly manner. - Monitor financial performance intuitively. Ideally, the software will have distinct user roles and permissions for an Administrator, Loan Officer, Accountant, and Client. Candidates should have extensive experience in creating financial/loan management software, and a strong understanding of financial operations and procedures. Knowledge of effective user role and permission structuring ...

I'm looking for a 3D Unity game developer who can improve a small game by adding more platforms and nature objects to the scene, adding extra enemies for combat, and including more pickups and powerups such as keys and other objects. The current gameplay experience is basic, h...and balanced with a smooth finish. A successful candidate for this project should be able to: - Expert in 3D Unity game development - Proficient in level design and balancing - Skilled at adding new game mechanics - Experience with implementing new enemy AI systems - Able to create and integrate new asset models - Has a good sense of game flow and pacing All the assets you will need are in the folder as well as the game itself. Also, there is a preview image of the assets together. The game should ...

...actions and responses. - Real-time data synchronization: making sure our user's data synchronizes in real time, ensuring a seamless user experience across devices. - Seamless integration with various third-party APIs, crucial for expansive functionality Ideal candidates should have extensive experience in: - Building and maintaining large-scale social media platforms - Implementing complex user permission systems - Working with real-time data handling, crucial for a dynamic user experience - Integrating a wide range of third-party services Standouts will demonstrate: - Proven track record with React.js & - Creative problem-solving skills - Efficient performance optimization in large projects - Strong communication for collaborative development Mandatory; - React....

...control. 1 Registration Screen for Admin & User UserID Password Confirm Password FirstName MiddleName LastName Email Phone Sex Company Date Created Date Updated 2 Forgot Password Email 3 Change Password Old Pass New Pass Confirm Pass 4 Admin Dashboard Screen to manage Users and User Roles a. Admin User have permission to create an another user. Page #1 can be used. b. View of Users and Assign Roles, Permission. Status, Last Login, Date Created/Updated/Deleted. 5 Logs - Admin to view the logs of all the users - like when they logged in , what actions they did for audit purpose. Just a view and search screen 1. Registration & Cancellation & View & Update 2. Configure Mail Communication email IDs. 3. Option...

I'm looking for an experienced freelancer to build a Linux-based Orthanc server for my project. The primary purpose of this server is to serve as a DICOM web viewer. and to be able to link it with the moodle plugin Key requirements: - Operating System: Linux - DICOM Web Viewer: The Orthanc server should function effectively as a DICOM web viewer. - Multi-User Support: I need support for multiple users with different permission levels. This involves detailed access control capabilities. I am using digital ocean Ideal skills and experience for this project: - Proficiency in Linux system administration - Prior experience with setting up and configuring Orthanc servers - Strong understanding of DICOM protocols and related technologies ...

Self-Hosted web based Jigsaw Puzzle game server. Search engines are showing me desktop apps, for me on my own computer. I want to host on my Linux server, and offer to my Fans. (Because my images are mine, and I don't want to publish on free Jigsaw Puzzle platforms.) This project is more about determining which existing package to pick and install, rather than to write something. I've been wanting to do this for months, and now is the time to focus on this. Ideal Skills and Experiences: - Web servers - Interactive content - Familiarity with jigsaw puzzles or similar games

I'm in need of an expert graphic designer to generate a professional, corporate style design for a marketing folder, both inside and outside. This is for a construction company. Here are the requirements: - Include Company logo prominently in the design - Color scheme should be dark grey, blue, white and a touch of black - The design should strike a balance between minimalist and decorative. It shouldn't be overly simple, but it shouldn’t be cluttered as well. - Use the image of the contractor graphic on the inside flaps of the design - Make the design minimalistic, with emphasis on the company logo Ideal skills for this job would be: - Proven graphic design experience - Strong portfolio of design work, showing creativity and versatility - Ability to translate bus...

We are in need of an Oracle Database Administrator (DBA) who can provide coverage from ~8pm to ~4am PDT for one or two weeks starting May 27th, while a current employee is on vacation. Those hours are somewhat flexible. Ideal candidates should have the following skills and experience: - Proficiency in Oracle database administration for versions 11 through 19 - Must be proficient from the Linux command line - there is *no* OEM for these databases - Will respond to emails & alerts for end-clients - Will Investigate any reported problems during that shift - Must be completely fluent in English It is possible there will be nothing to do during the shifts, but if something comes up, rapid response is required. There may also be a need for weekend coverage, and possible future work...

Join our team at in Malta as a full-time Marketing and Sales Representative, where you'll be at the forefront of promoting international brands. Your role involves engaging with both businesses (B2B) and consumers (B2C) directly, contributing to our growth and market expansion efforts. Main tasks and responsibilities -Engage in face-to-face customer ...advantageous but not obligatory Job benefits -Comprehensive training in client management, sales, and customer service -Potential travel opportunities -Bonuses based on performance -Progression program based on performance Apply only if you are +18, and if you are an EU citizen Apply today for a chance to find out more about our career opportunities. We suggest you keep an eye on your inbox and Spam folder for corresponden...

I need a Python expert knowledgeable in Android-PC interfacing. I run a Linux OS on my computer and I am looking to have a script developed that allows me to take a picture from my Android phone on command from the PC. Objective: - A Python script to take pictures from an Android phone controlled via a Linux OS. Key Features: - Trigger the script to capture a photo when a specific event (like a click) happens on the PC. - The location for saving captured photos is undecided and open for suggestion. Ideal Skills and Expertise: - Python programming with experience in Android-PC interfacing. - Knowledge of Linux based systems. - Understanding of camera operations on Android. Please bid with a proposed solution in mind, and add any experience you have with similar p...

I'm in need of an experienced Shopify developer who can assist me in customizing my store. I'm looking to make some changes to the theme you need provide, predominantly focused on the color scheme, fonts, and logo/header. Additionally, my navigation menu needs to be tailored to a simple shop structure, with categories and products. YOU NEED ENEBLE START RIGHT IRECT AND FINISH ASAP Key Points: - Customization of Shopify theme - Changes to color scheme, fonts, and logo/header - Add swedish language content we provide to you - Created Google Merchent Account and get it approved - Introducing product categories and products Ideal Skills and Experience: - Proficiency in Shopify development - Demonstrable experience with theme customization - Strong eye for design and aesthetics - ...

they closed it? collect information from a directory for our event, which lists approximately 2590 partners. The information must be obtained from subpages 1. Logo (embedded in excel and folder) 2. Company Name 3. Stand number/code 4. "Why Visit Our Stand" Section 5. Brands 6. Description 7. Company Activity 8. categories 9. Regions 10. Gallery (embedded in excel and folder) 11. Follow us section (social media links) 12. Website 13. Email(s) 14. Company Address 15. Company phone number

they closed!! collect information from a directory for our event, which lists approximately 2590 partners. The information must be obtained from subpages 1. Logo (embedded in excel and folder) 2. Company Name 3. Stand number/code 4. "Why Visit Our Stand" Section 5. Brands 6. Description 7. Company Activity 8. categories 9. Regions 10. Gallery (embedded in excel and folder) 11. Follow us section (social media links) 12. Website 13. Email(s) 14. Company Address 15. Company phone number

I'm seeking for a skilled system administrator with hands-on experience in Linux Ubuntu 22, Proxmax, and Cloudflare. The successful candidate will be responsible for managing and maintaining these systems. Key Responsibilities: - Linux Ubuntu 22 administration: You will be required to oversee the setup, configuration, and daily maintenance of our Ubuntu server ensuring smooth operations. - Proxmax administration: Extensive experience in Proxmax is essential to handle the virtualization environment efficiently. - Cloudflare administration: You will also be responsible for configuring and monitoring our Cloudflare services, ensuring optimal performance and security. Your application should include: - Detailed project proposals: I'm looking for a freelancer w...

I am seeking an UK based experienced Golang Developer to build a robust and secure Go program that manages updates for another Go executable. This project requires creating a system that monitors GitHub to automate the process of updating, running, and, if necessary, rolling back an executable in a restricted Linux environment. Responsibilities: Develop a program that checks for new versions of an executable stored on GitHub and updates the running executable accordingly. Implement functionality to run the updated executable and perform startup tests to ensure its stability. Design a rollback mechanism to revert to the previous stable version if the new version fails at startup. Incorporate signature verification for each new executable to maintain security and authenticity. En...

Step by Step Process to Host Asp.Net Web-Api Project into Docker Container. In both Windows & Linux. Explain with Sample Project. with all commands. Feel free to message me with your experience in these areas, and your availability to begin work. Thank you!

I have a php html5 flash js based game for Vesta (Centos 7) panel and a high security installation instruction for vesta. There are detailed nginx directives, I need a friend who can install / apply them in the plesk panel. So what I need is to fulfill these installation instructions in a way that is suitable for ple...need is to fulfill these installation instructions in a way that is suitable for plesk centos 7 and to install the game, to take note of every installation step and adjustments made for plesk while installing the game and to create an installation instruction in accordance with plesk and share it with me. The most suitable candidate: - Expertise in CentOS and general Linux systems. - Experience in game installations on Linux. - Courteous, efficient and effecti...