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Post your Linux system administration project on Upwork and find Linux experts and system administrators to assist you with your Linux server installation, configuration, maintenance and technical support tasks. These experienced consultants can manage your Linux network and infrastructure security or perform backups and security scans or updates and identify threats on your Linux OS system. They can also deploy web applications, eCommerce systems and content management systems on your Linux server, or migrate your virtual machine to a physical Linux server. You can also find a professional Linux sysadmin, experienced in system monitoring and control tools, to manage and optimize your Linux-based server farm.

Linux is a collection of free and open-source, cross-platform, Unix-like operating system distributions, among which the most widely known are Ubuntu, Red Hat and Slackware. On Upwork, the world’s largest online workplace, you can find experienced Linux system administrators to set up dedicated Linux web servers, install web hosting control panels (like ZPanel, Plesk, cPanel or DirectAdmin), set up SQL databases and file managers or configure Linux server security and accounts.

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Linux System Administration Upwork freelancers typically receive a client rating of 4.79.

Last updated: July 1, 2015
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  1. Rani More

    Rani More

    Jr. PHP developer

    India - Last active: 22 days ago - Tests: 15 - Portfolio: 2

    Over the last 5 years, I have developed a wide range of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have some experience in the following areas: SQL, Ajax, OOP, and software design and testing.

    $10.00 /hr
    0 hours
  2. Claudio Mastrapasqua

    Claudio Mastrapasqua

    Open Source Solution Architect & System Administrator

    Italy - Last active: 21 days ago

    IT Service Management - system administration of Unix and GNU/Linux servers - troubleshooting and problem solving of Incidents and Problems - workgroup coordination for Event management activities - managing relationships with customers and suppliers - management control - support workgroups during decision making IT System Administrator (Linux, RedHat, Suse) - full operating system administration and managing - problem determination & problem solving - delivery new servers, OS and services - hardening & security - clustering & storage solution implementation - shell scripting Open Source - system integration of ITSM, NMS, Storage and Networking open source technologies - FE web development based on HTML5, AJAX, Javascript libraries - BE web development based on MySQL, PHP and its main frameworks - Content Management Systems by customizing Wordpress or Joomla platforms - basic knowledges of embedded ARM platforms for small business applications

    $16.00 /hr
    0 hours
  3. Lahiru Fernando

    Lahiru Fernando

    Linux Administrator

    Sri Lanka - Last active: 14 days ago - Tests: 3

    I have knowledge and experience in following areas. 1) Linux ( Ubuntu, Centos, Redhat,Fedora, Debian) 2)Application ( Apache, Nginx, jboss, Magento, Tomcat, Jboss Clustering) 3) Databases ( PostgreSQL, PostgreSQL clustering, Mysql, Oracle ) 4) Visualization ( Ovirt Enging, xen ) 5) Other ( Squid, Raid Storage, HAproxy, Load balancing )

    $7.00 /hr
    0 hours
  4. Russell Dempsey

    Russell Dempsey

    Web Developer, Software Engineer, Technology and eCommerce consultant

    United States - Last active: 15 days ago - Tests: 3 - Portfolio: 1

    I have been programming and scripting as a hobby for the last 10-15 years, and currently work as a professional JavaScript, PHP, and .NET developer at an interactive development shop. My work here has involved hundreds of projects. I have lead and completed mobile websites, mobile apps, single page applications (SPA), complex enterprise level content management systems(CMS), desktop application replacements, and highly technical business API dependent websites. I have completed thousands of automation bots, scripts, websites, and tools for reducing tedium and increasing efficiency. Many automation tasks I have been assigned to have reduced 8 hour tasks into a simple 1 second clicks. I have also counseled thousand to billion dollar businesses while working at PayPal as a Software Engineer and Integration Specialist on the best practices and most efficient methods for using the PayPal API for B2B, B2C, and B2G. I helped many new and old PayPal merchants and app developers reduce their deliverable deadlines by providing insight and expert eCommerce advice. Please let me know if you need assistance with any PayPal consultation or development services in *any* language. I can assist you with all JavaScript projects, and have extensive knowledge using the following libraries/frameworks/tools: Node.js, polyfills, jQuery, jQuery UI, jQuery Mobile, angularJS, Backbone, requirejs, D3, raphaeljs, lodash, underscore, phoneGap, HighCharts, Handlebars, mustache, Modernizer, Mocha, Jasmine, grunt, bower, yo, yeoman I can assist you with most PHP projects, and have extensive knowledge of the following frameworks and PHP versions: PHP 5.2-5.4, Laravel 3, Laravel 4, Zend, Symfony, CodeIgniter I can assist you with some .NET projects(C#, VB, and some ASP), and have an intermediate level of working knowledge with the following tools: Web Forms, Razor, MVC, LINQ, Moq Please also ask me for assistance with any of the following items: HTML5, HTML5 canvas, eCommerce, PayPal, Automation, Scripting, AutoHotkey, JavaScript, JS, PHP, .NET, Ruby, Node.js, B2B, B2C, B2G, SurveyMonkey

    Groups: PayPal

    $88.89 /hr
    0 hours
  5. Muhammad T.

    Muhammad T.

    Netwok/System Engineer

    Pakistan - Last active: 20 days ago - Tests: 18

    With a background in IT support, operations management, configuration, and maintenance of information system, IT Infrastructure, I have 2+ years of international experience working with many companies. Currently I am the Assistant Manager, IT in Ibrama Communication company. Ibrama Communications is one of a biggest outbound call center in Pakistan with 300 seats and complete infrastructure.In this position, I oversee, Network/Systems Management, Troubleshooting client issue, Monitoring Live Windows and Linux based servers as well, Solutions, and Integration. Present Job summary is: Designing & Managing IT (voice / networking) infrastructure for business continuity and development. Designing and managing LAN infrastructure which includes Linux Based Calling servers & Voice communication (using Asterisk, freePBX, Vicidial etc) , Virtualization (using VMware ESXi version 3, 4 & 5), routing and switching (Cisco), internet access and Wi-Fi environment. Designing and maintaining Business Continuity and Management solution Configuring Cisco Switches (Cisco 3750, 3560,3550 series) Monitoring of live Linux based Vicidial/Goautodial outbound and inbound servers Installing new servers, with hands on experience on (Poweredge R710, Poweredge 1950) servers Installing/Configuring proxies server with PPTP protocols on daily basis Configuring TP-Link routers with Wi-Fi communication all over the office building Maintenance and Optimization of servers on daily basis to make the whole voice infrastructure making smoothly working Configuring Microtik Routers Troubleshooting client issue related to servers, internet, system and making the whole network infrastructure secure with the minimum percent of downtime My motivation to identify new growth opportunities, a solution-focused mindset combined with the ability to navigate across departments and business units, and my in-depth IT experience will allow me to contribute instantly to the success of your division. I welcome the opportunity to meet with you to discuss your vision for growth and how my skills would contribute help you achieve your objectives. Thank you for your time and consideration. Sincerely, M Tahir

    $7.00 /hr
    0 hours
  6. Ved prakash P.

    Ved prakash P.

    Over 5 years of experience in Uinix , Oracle and MySql & RAC ..

    India - Last active: 2 days ago - Tests: 4

    Over 8 years of experience in Unix , Oracle and MySQL & RAC .. administration and configuration and management of database,server, FTP server, User management on Linux OS and database. Improved and administered the existing Oracle databases and applications. Responsible for providing 24x7 support for production Oracle databases Perform Higher Availability/Clustering/Failover( RAC, CRS, Grid Infrastructure, Data Guard, Replication) Install the database server and application tools , programming troubleshooting databases Plan for backup, recovery and restore the database Control and monitor user access to database; monitor and optimize the performance of database Allocate system storage and plan for future storage requirements for the database system Create primary database storage structures and primary objects Database and SQL tuning to improve performance of loads. Performed SQL tuning by using Explain Plan and Tkprof. Bitmap indexes were used on low cardinality columns as they result in reduced response time for queries and substantial reduction of storage space. Database alert scripts, monitoring scripts and backup procedures (rman + exp +imp + data pump+ shell script + .....) Implemented table partitioning to improve performance and data management. Monitor and optimize the system performance Create a backup and recovery policy, Manage to Diagnostic Error Logs Monitor, and Remediation for Alerts Provide DBMS Connectivity Support Starting database or listerner incase of database down or listener down. Constructing the triggers, tables, functions, cursors, procedures etc

    $20.00 /hr
    0 hours
  7. Mubashir Ahmad

    Mubashir Ahmad

    Database Administrator

    United States - Last active: 2 days ago - Tests: 6

    To use my skills, experience and adaptability to obtain a Database administrator position where I am constantly challenged. My greatest strength is my ability to walk into a new environment and be functional immediately. I am quick to learn and adapt to new situations, configurations and technologies. Trainings: Oracle 9i/10G DBA , Oracle 10G Developer ,Oracle 11G DBA (OCP) ,Oracle 11G Active Data guard ,Oracle 11G Performance Tuning, Oracle 11g/12c Grid Control ,Oracle 10G/11g RAC ,Database Optimization Training and Implementations , SQL Server Database Administration, SQL Server Database de-velopment in TSQL , Business/Professional Communication Skills Trainings ,SQL Server Failover Clustering. Database Skills: • Oracle Database Administration 8i, 9i, 10G and 11G • SQL Server Database Administration SQL Server 2000/2005/2008/2012 •MySQL 5 Database Administration •SQL Lite • Database performance tuning • Database Replication • Datagaurd 10g/11g and 8i Standby • Oracle 11g/12c Grid Control • Oracle RAC basic knowledge and concepts • Shell Basics • SQL Server Failover Clustering •Oracle Golden Gate • Database Development SQL,PL/SQL,TSQL • Oracle Expdp & Impdp •Hot & Cold Backup •SQL Server Backup Techniques •Mirroring • Replications Tools: • Toad for Oracle and SQL Server • Spotlight for Oracle and SQL Server • SQL Developer • OEM• Putty, Xmanager and Xshell• PLSQL Developer• Erwin •Toad SQL Tracing • SQL Dbx • Oracle Golden Gate varidata, Oracle Golden Gate monitor • EMC Networker • Symantec NetBackup • MySQL Query Analyser • MySQL Administrator • MySQL Workbench Operating Systems: • Linux/Unix OEL/REHEL/CentOS/Solaris/HP-Unix/AIX, Windows Server 2003/2005/2008/2012 ,Windows 98/XP/Vista/Seven/Eight.

    $40.00 /hr
    0 hours
  8. Eder Xavier Rojas

    Eder Xavier Rojas

    Web developer skilled on Django framework, Bootstrap, MongoDB

    Nicaragua - Last active: 3 days ago - Tests: 5

    I am a back-end developer, skilled in django framewok, HTML, I have experience with CSS frameworks like Bootstrap and Foundation. I have good skills on linux systems and android SDK, I am capable of doing tasks given to me. I love self-learning and i try to be update of technology. I have some experience with ASP, C# and Visual Basic.

    $11.11 /hr
    0 hours
  9. Afif Belgacem

    Afif Belgacem

    Sharepoint, .Net Developer

    Tunisia - Last active: 22 days ago - Tests: 3

    Object: Application for a post of a Computer: DotNet Developer Attention Executive Staff, Sir/Madam, I have a degree in Master of engineering computer systems from ESTI (Higher School of Technology and Information) of Tunis. Currently I'm looking for a job² as a developer DotNet (C# or VB.Net). My training firmly focused on computer networks, databases and object-oriented programming has allowed me to acquire necessary for the conception and develop projects skills. In particular, I acquired a perfect mastery of the techniques of network programming with C#. My first project gives me the opportunity to develop my technical skills in many different aspects of automatic inventory management of an information system and incident management (HELPDESK) and the second takes place around the end of breakdown, cash management and bank management in the project management of Aluminum Joinery And I took a developed enough experience on the theme of Insurance and Reinsurance during my work at the development box NTIS of the CAAM Group (Arab Maghreb Insurance Company (Tunis)). Then, integration within multinational company of development S.I.2001 of the PICO-GROUP Group. These experiences have given me a lot about the human gave me a taste for teamwork. I am motivated, disciplined and versatile, I would like to share with you my real motivation for a computer station that offers me. Thanking you for considers my application favorable. Of course, you can hold me for any further information. Sir, I beg you to accept assurances of my respectful feelings.

    $14.00 /hr
    0 hours
  10. Winfried Rohr

    Winfried Rohr

    Software Developer and QA Test Manager

    Thailand - Last active: 1 day ago - Tests: 4 - Portfolio: 1

    Tool Development: "Automate the boring stuff!": Scripts in Python to do repetitive tasks Extensions, Macros and Python scripts to automate OpenOffice (locally or remotely, from a command line): individual or "mass" document creation, with/without database connection ("Mail-Merge"), CSV handling scripts, Tools. Python Web-Scraping (BeautifulSoup, Scrapy, Selenium) Programs for data transforming / aggregation or (test-) data generation Highly qualified Quality Assurance Manager, Team leader, manual or automated testing, test concept documents, default tracking, re-tests I managed several long term projects in banking, insurance and telecommunication companies in Germany, last 7 years in English spoken projects Experienced in QC / QA processes, Mainframe, C/S and PC architectures. Manual and automated tests within all stages of programming lifecycle (Mercury, Rational) Started as a software developer on IBM MVS, DB2, CICS, COBOL, later worked on first PC integration in HOST environment (IBM Lan, Novell, OS/2). 15+ years experience in Unix/Linux: Shell (bash) scripting, programming in Python (PyQt4/PySide, Joomla, Django) SQL Databases (MySQL/MariaDB, PostgreSQL, Oracle) Author of several OpenOffice (Apache/LibreOffice) macros and Extensions in StarBasic or Python: 10+ years experience in OpenOffice programming! Experienced in VBA application development for Word or Excel * Professional automation (scripting) of repetitive tasks (data organization/backup/mail merge, renaming/reorganizing of pictures,...) * Generation of massive test data: Names, Dates (DOB, timestamps, "aged" data), Addresses (consistent: telephone numbers/ zip codes)

    $19.99 /hr
    1 hours