Linux is an open-source and free operating system, which runs on many computers, servers and device. A Linux Developer is any tech professional who specializes in developing programs and applications that run on the Linux operating system. They also help install, troubleshoot and fix any issues related to the Linux OS, allowing their clients to use it effectively.

Linux Developers are highly knowledgeable in this field and can provide their clients with various services ranging from installation, selection and acquisition of Linux-based applications, to helping set up a computer or server infrastructure. Their expertise would be beneficial for any business that wants to employ the use of both Linux-based applications and environments.

Here's some projects that our expert Linux Developers made real:

  • Designing creative solutions for GUI elements for user interactions
  • Optimizing server performance and reliability
  • Developing solutions for deploying software within a scalable environment
  • Deploying robust backups and security measures
  • Enhancing the structure of web applications under the Linux system
  • Writing code mapping APIs between multiple operating systems
  • Building desktop applications to execute specific commands

Our expert linux developers can achieve all this, as well as any other custom tasks that may be required. At Freelancer.com you’ll find highly skilled professionals ready make your idea reality. If you have a project you need help with or just want an experienced developer to lend a helping hand with technology needs, post your project today!

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    We are seeking a highly skilled and experienced developer to work on our in-house imaging and processing software stack. The client side of the stack runs in a network-booted Linux environment and is written as a combination of BASH scripts and Python programs. Its responsibilities include disk formatting and cloning, as well as hardware inspection and reporting. It is driven by an operator using a text-based UI. Key Responsibilities: - Collaborate with us to understand the intricacies of the stack and the specific requirements for supporting newer generations of computers, such as GPT partitioning and UEFI instead of legacy BIOS. - Incorporating enhancements to support newer generation computer systems embodying GPT partitioning and UEFI over the previous BIOS. -Successful adaptation o...

    €2517 (Avg Bid)
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    Python Expert developer -- 2 1 ditë left
    VERIFIKUAR

    Python Expert Needed. first line + " I am not bot. "

    €14 / hr (Avg Bid)
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    Busco programador con conocimiento en servidores de juegos como : Counter Strike Half Life Minecraft TeamSpeak ETC Necesito que tenga experiencia en seguridad de red, AntiDDOs etc.

    €130 (Avg Bid)
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    Hi, I need to migrate big WP site via SSH It is too big or I would have done it with a plugin myself. I've been using plugins for migrations on over 300 sites and it is NOT POSSIBLE WITH THIS SITE (I tried 7 different plugins and settings in 2 days) I have SSH creds ready for both servers

    €17 / hr (Avg Bid)
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    The key tasks to be performed include: Installing and configuring Frappe Press using Docker. Implementing a fully custom setup, with a strong focus on unique configuration to meet my specific needs. Your ability to communicate effectively is also crucial, as this project revolves around my specific requirements and preferences. Prior experience with similar tasks would be highly beneficial.

    €150 (Avg Bid)
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    mysql with high load 23 orё left
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    I'm using aapanel and I'm looking at the processes here and the load is very high on the database, the server is at 100% and I've never seen this happen before.

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    Ubuntu VPS MySQL Database Recovery 23 orё left
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    I have an Ubuntu VPS on Hostinger and faced an issue while setting up a tool (iRedMail). In trying to configure it, I mistakenly reinstalled mysql. As a result, I've lost the databases that were previously stored in /var/lib/mysql. - I have full access to the VPS and can login via the command line. - The MySQL service is currently running on the VPS, but it's empty as I need to recover old databases. - I have specific information about the databases and tables that were deleted. I'm in urgent need of a skilled professional who can help me recover the lost databases. The ideal candidate should possess: - Profound experience in database recovery, particularly on Ubuntu VPS. - In-depth understanding of MySQL database structures. - Ability to work efficiently through command ...

    €27 (Avg Bid)
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    Mikrotik VPN Setup for macOS 21 orё left
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    I am seeking for an experienced network engineer capable of setting up a Client-to-Site VPN on a Mikrotik router. The successful configuration needs to comply with the following: - Security protocol: The VPN should be secured using the OpenVPN protocol. - Client Devices: The VPN configuration should allow connection from macOS devices. The ideal candidate should have demonstrated experience in: - OpenVPN and Mikrotik router configurations. - Familiarity with macOS operating systems. - Network security and VPN configuration. Looking forward for a professional who can deliver an effective and secure solution making remote work safer and more efficient.

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    I'm looking for someone with experience in React, who also understands Asterisk servers and JSSIP. I have an existing asterisk server that I connect to with a React phone client to make outbound and inbound calls. Everything was working fine, but I recently refactored my code to use Redux instead of Context. In doing so, now when I make outbound calls I get this error [ERROR] JSSIP UA not initialized And when making inbound calls it says the number is not available. I can provide the old, working version of the code, and the new version that doesn't work. I just need someone to look at it and tell me what I'm doing wrong after converting to Redux. If you can help, please include the word "briefcase" in your bid so I know you've read the description and can ...

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    Hi, I am resetting SSH pw right now and it seems there might be another step or two. I can't have client down for more than a few min, so need someone available right now in case

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    I am searching for a technical wizard who can dive deep into my home network data. There are several aspects that I'm curious about: Developer google in my activity when it’s not me and google can’t tell me , lots of account changes * A detailed breakdown of my internet usage across different devices and applications. * An evaluation of my network security, including any weak points and areas for improvement. * An understanding of the devices connected to my network and how they're interacting. I suspect that things are being hidden or configured without my knowledge - I want to unveil any secret activities happening on my WiFi and phone. I primarily use smartphones and laptops, and I've recently noticed the presence of IFTTT and Home Assist on my network. I...

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    Python Developer (Playwright) 18 orё left
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    I'm looking for a talented Python developer with a specific skillset in Playwright. The successful candidate will need to have a strong proficiency in Python and ideally experience with UI automation, web scraping, and unit testing. Key Requirements: - Strong Python programming skills - Experience with Playwright - Ability to develop code compatible with Windows, Mac, and Linux Further details on the project and specific tasks will be shared once we connect.

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    Experto en Radius y SSL 18 orё left
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    Necesitamos un experto en Radius que nos configure un servidor Radius que actualmente esta presentando muchos fallos y fue mal instalado. Tenemos una red Ubiquiti Unifi, con un UDM que maneja la red y tiene segmentada la red por Vlans. El mismo es para una escuela que tiene primaria y secundaria, por lo tanto tenemos 2 Vlans, una para primaria y una para secundaria, actualmente la de primaria no puede navegar y en definitiva es un problema provocado por el servidor Radius actual, y no sabemos como resolver esto, ademas actualmente esta funcionando con un certificado autofirmado y queremos implementar un certificado real.

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    I am on the lookout for a seasoned cyber security expert to fortify my network and safeguard our personal computers and mobile devices from malware and viruses threats. The specifics of this project include: - Assurance of Network Security: My primary concern lies in the protection of the network from malicious harm. I want a bulletproof network security system capable of warding off potential intruders. - Malware and Virus Mitigation: It's crucial to me that the chosen professional can proactively identify, manage and dispel malware and viruses. - Protection Across Multiple Platforms: Notably, it's not just our PC network that requires protection. Our mobile devices are also in dire need of comprehensive security measures. The ideal candidate will have a strong background ...

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    I am seeking a skilled network administrator to help me with a specific firewall configuration on my Asus Dr 68-R router. This configuration includes the following specific requirements: - Set up a firewall rule that blocks all incoming DNS requests except for those from the Cloudflare DNS servers. This is to ensure that my internet filtering remains effective, despite efforts by my kids to bypass it by changing their DNS servers. - Implement content filtering in the configuration to ensure that the internet access is still secure and appropriate for my children. These configurations need to be implemented at the router level, as this is where the issue is originating. The ideal candidate for this job will have: - Profound experience in working with Asus routers, particularly the Dr 68-...

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    I require an expert in AWS security, specifically experienced with AWS Shield and Web Application Firewall (WAF), to assist in setting up and configuring my AWS Firewall. Key tasks include: - Configuring and setting up AWS Shield - Implementing AWS WAF securely - Setting rules in AWS WAF for blocking recognised malicious traffic patterns. The ideal candidate would have extensive experience in AWS security services, and a strong understanding of traffic control requirements in AWS WAF. Proficiency in creating rules for managing potentially harmful traffic patterns is crucial. This project requires deep knowledge of AWS Shield and WAF. Proven experience in similar projects will be highly valued.

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    I'm seeking an adept developer who can assist me in setting up and running the YoloV8 model on a Raspberry Pi using a Coral Edge TPU. Key tasks include: - Set up the environment for the YoloV8 model on a Linux OS - Configure the model to use the Coral Edge TPU for enhanced performance - Implement YoloV8 for object detection within a security camera feed - Ensure successful and seamless operation The perfect candidate has: - Expertise in working with Raspberry Pi and Coral Edge TPU - Proficiency in Linux OS and configurations - In-depth knowledge of the YoloV8 model and object detection - Experience with software development for security systems I'm finding only an expert who have practical experience with Coral Edge TPU

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    Python Expert developer 14 orё left
    VERIFIKUAR

    Python Expert Needed. first line + " I am not bot. "

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    I am looking for an expert in Grafana and Prometheus who can assist with monitoring and alerting system health. The specific focus is on the development of squid proxy dashboards, visualizing and analyzing the relevant metrics. Further, I count on your expertise to guide me on setting up the appropriate performance thresholds for effective monitoring. Ideal Skills: - Extensive knowledge of Grafana and Prometheus - Prior experience with squid proxy dashboards - Proficiency in defining performance thresholds - Strong problem-solving skills and proficiency in monitoring and alerting on system health.

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    I'm seeking a skilled Linux developer who can take on the task of customizing Ubuntu to create a unique operating experience. Specifically, this project will involve: - Changing the OS name - Customizing the boot pictures - Incorporating select software packages into the OS Candidates would ideally have a solid understanding of Ubuntu and the intricacies of OS customization. Experience in image editing software would be a bonus. This is not a rush job and I'm keen on quality over turnaround time. I'm willing to collaborate closely to ensure the end result is spot on. Let's create a distinct version of Ubuntu that reflects my vision! With source code and prepare my laptop setup to modify it

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    I'm looking for a FreePBX expert to help configure the Sticky Agent feature on my system. Key Requirements: - Configure Sticky Agent - Route call to the same agent who answered previously. - If that agent are unavailable, then route to his VM. Call Flow: - Inbound Route - Queue - Static Agent Ideal Skills and Experience: - Expertise in FreePBX, specifically version - Only apply if you have done this previously. My server is live, hence no experimenting. Budget $50

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    I am seeking a PHP developer to create a secure CURL script that logs into a remote FTP server using a username, password, and PEM certificate to upload a file, list files and download a file. You will need to: - Set up the CURL script to handle both username, password, and a PEM certificate. - Ensure that the script successfully authenticates with the FTP server using these credentials. - Offer 4 functions (connect, upload, list, download) - Implement error handling and logging to deal with any issues that may arise during the authentication process. A well-documented and clean codebase is appreciated.

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    When importing customers via CSV file in ASTPP version 6.0, both postpaid and prepaid customers balance always uploads 0. The task is to find the corresponding php file/path on the server and correct it, so that the balance uploads correctly when uploading the customers on the ASTPP both for prepaid and postpaid customers. Positive balance must upload as positive balance. Negative balance must upload correspondingly. 0 uploads 0. You need to make a detailed document how to do that on any ASTPP server, so that someone without technical knowledge takes the document, follows it and gets the same working on the other ASTPP server. Example of the document: Someone from our side will try to upload customers on the provided server to make sure it works, if yes, then we will take your document, ...

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    I'm searching for an expert to help me set up a honeypot in Cisco Modelling Labs (v2.6.0). The primary purpose is to monitor network traffic, identify, and capture any malicious activities that happen within the network. It can be a low or low-medium interaction honeypot. As a beginner, I require an individual with skills and experience to navigate these systems. Mastery of Linux server for implementing the honeypot is essential due to its build on a Linux system. Need it completed before the end of April. Key Competencies: - Expertise in Cisco Modelling Labs - Proficiency in with Linux - Understanding of network monitoring and security principles - Ability to train a beginner on how to run the honeypot with documentation (pictures) of how the honeypot was created.

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    As a busy client, I require an experienced system administrator who is proficient in Linux operating systems, and knowledgeable in server maintenance, troubleshooting, and security update tasks. Our server is activated on the Godaddy platform and managed through WHM/cPanel. Your responsibilities will include: - Undertaking regular server maintenance tasks to ensure the efficient operation of our server - Addressing and rectifying any server issues as they arise - Implementing necessary security updates regularly, proactively securing our server against potential threats - Guiding the business team with proper server plan and upgradation process based on the business needs Ideal skills and experience: - Proven expertise in Linux system administration - Prior experience working with God...

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    I'm currently facing a pervasive issue with my fiber optic Internet service. Despite the router showing green light and wifi connection, the speed is frustratingly slow. This is affecting every device connected to the router, leading to choppy video playback, and slow webpage loading. I'm not simply looking for a quick fix to the slow speed – I need a solution that will offer enduring high-speed Internet. Either a significant boost to my existing service or an entire Internet setup replacement will be considered. Either way, the end goal is faster, more reliable internet service. Applicants for this project should: - Possess strong familiarity with Fiber optic Internet setup and troubleshooting - Have outstanding problem-solving skills - Be experienced in optimizing rout...

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    Hi, I have one sample codes which work as voip client . it should run on ARM32 . and I have one rockchip rv1106 linux SBC (I can add memory and emmc size following your advise). this rv1106 has its SDK, I installed on virtual unbuntu 20.04,and buid SDK and its sample application codes ok, but when I integrate the voip sample code into sample application codes ,it has link error about GLIBC,etc ,similar outputs as this url: I tried to fix it myself ,and asked for help ,still not working .I guess rv1106 cross compiler tool shipped by chip provider is uclib (arm-rockchip830-linux-uclibcgnueabihf ) ,but the voip sample codes need glib. so I am thinking maybe we should use buildroot to build a new linux image ,which support glib . the new linux image should handle audio input/output ,wifi...

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    I am looking for an experienced professional to set up an SMTP server primarily for the purpose of sending emails. Given the scale of my operation, the server should be capable of supporting sending emails to over 1,700,000 people. Technical proficiency in SMTP protocol, email delivery, and server setup is a crucial qualification for the job. Here's more about the deliverable: - Proper configuration of an SMTP server - Support for sending bulk emails - Capability to restrict the sending of mass emails or newsletters - Ability to handle, without interruption, the email traffic for a large volume of recipients Ideal Skills: - SMTP Server Setup - Email Delivery - Bulk Email - Restrictive Email Policies Given the nature of the project, experience in handling large-scale SMTP server set...

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    Windows Server 2019 DC Setup Në përfundim left

    I require a professional to set up a domain controller on my Windows Server 2019. This setup should cater to less than 50 users and offer redundancy with at least one backup domain controller. Ideal Skills: - Extensive experience with Windows Server 2019 - Knowledge of network architecture and redundancy setups Project tasks: - Install and configure the domain controller - Create a setup for fewer than 50 users - Implement redundancy with one backup domain controller This project demands precision, reliable communication, and expertise in the field. Only apply if you have verifiable experience in similar projects.

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    I described the error below in details. I'm sure the Server administrator can fix this issue in 1~2 hours. I'll pay $100 for this project. 1. I generated 2 csr files with command. openssl genrsa -out ~/certs/ 4096 openssl req -new -sha256 -key ~/certs/ -out ~/certs/ openssl genrsa -out ~/certs/ 4096 openssl req -new -sha256 -key ~/certs/ -out ~/certs/ 2. I got 2 swish certificates file from swish portal. I used one for singing and another for TLS communication between web system and swish platform. 3. I created p12 file from the reference. openssl pkcs12 -export -out -in -inkey 4. I used the following code. <?php $date = new DateTime(); $dateString = $date->format('Y-m-dTH:i:sZ'); $payload = [ "payoutInstructionUUID" => "...

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