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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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On average, 602 Linux System Administration projects are completed every quarter on Upwork.


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Time needed to complete a Linux System Administration project on Upwork.

Average Linux System Administration Freelancer Feedback Score

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

Last updated: July 1, 2015
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  1. Anthonireddy Ch

    Anthonireddy Ch

    Hadoop Admin

    India - Last active: 1 month ago

    Installation of various versions of Hadoop MR, YARN clusters and HA cluster. Installation and configuration of various versions of Cloudera’s Distribution Including Apache Hadoop (CDH) and Apache Hadoop. Installation of various Hadoop Ecosystems (Hive, HBase, Pig, Hama, Oozie, Whirr, Mahout, Zookeeper) and Hadoop Daemons. Involved in Hadoop Cluster environment administrator that includes adding and removing DataNode existing cluster. Cluster Capacity Planning, Performance Tuning, Cluster Monitoring, Troubleshooting. Configure of Fully-distributed Hadoop cluster. Using server monitoring like Ganglia and Service monitoring tools like Nagios. Decommissioning and commissioning the Data Node on running cluster. Recovering from a NameNode failure.

    $40.00 /hr
    0 hours
  2. Harlin Seritt

    Harlin Seritt

    Software developer/Programmer/Alfresco Admin

    United States - Last active: 1 month ago - Tests: 3

    I am a software developer, systems programmer and systems engineer. My full time work is doing enterprise support for Alfresco software. There I specialize in helping customers with the following: Planning architecture, installation, clustering, authentication, application server (Tomcat, JBoss) and database configuration (Oracle, MySQL, Postgresql, DB2, Microsoft SQL), upgrades, assisting with CMIS scripts (Java, Python, PHP), writing JavaScript webscripts, Bash scripts, Share customizations (HTML5, CSS, Freemarker). I enjoy very much working with all of these technologies above. I also enjoy working with technologies that are new to me and am willing to work for less compensation in these instances. In addition to working at Alfresco, I have also worked at Cox Communications, IBM and the Centers for Disease Control. Everywhere I have worked in this field, I have done well. I believe in giving clients a fair bid for the work needed, doing my best to make sure the work is completed within deadlines and communicating frequently on progress and changing requirements.

    $27.78 /hr
    0 hours
  3. Ved prakash P.

    Ved prakash P.

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

    India - Last active: 18 hours 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
  4. Tom Gordon

    Tom Gordon


    United Kingdom - Last active: 13 days ago - Tests: 5 - Portfolio: 1

    Award-wnning, highly experienced web developer specialising in PHP and MySQL based websites. I have been a developer in multiple languages for more than 30 years, and have spent the past 5 years designing my own PHP framework that is used on a number of commercial and high-traffic websites. I also design and build highly available secure distributed infrastructures to support high traffic, scalable websites and web services. The website that I built using my PHP framework has been awarded a BAFTA, a Digital Emmy and three Webby awards.

    $100.00 /hr
    0 hours
  5. Jorge Eduardo Lopez Leonardi

    Jorge Eduardo Lopez Leonardi

    informatic engineer / project manager

    Venezuela - Last active: 13 days ago

    Una vez que la oportunidad es cerrada, mi trabajo consta en la planificación, organización y ejecución del proyecto, tomando en cuenta el costo, los objetivos a cumplir y por último,la gerencia de los recursos tanto económicos como humanos. En cuanto al cierre del proyecto, se dejaba cubierto los temas de: lecciones aprendidas, certificaciones funcionales y técnicas, transferencia de conocimiento y adiestramientos. Logros -Gerencia de todos los proyectos de la empresa, según metodologia PMI -Selección y gerencia de recursos -5 años como gerente de proyectos -Toma de decisiones tácticas y estratégicas para la empresa -Planificación de planes de control de riesgos -Atención de clientes a mediana y gran escala -Organización y ejecución de proyectos a nivel nacional -Manejo de recursos tanto internos como externos

    $11.11 /hr
    0 hours
  6. 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
  7. 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
  8. Luis Daniel Lucio Quiroz

    Luis Daniel Lucio Quiroz

    Linux, VoIP & Security expert

    Canada - Last active: 5 days ago - Tests: 1 - Portfolio: 3

    In Security Scope, I have acquired professional certifications such as CISSP (security expert), CISA (system auditor) and CISM (security manager). I have been acquired experience on operational and strategic subjects (technical and non-technical matters) such as IT deployment, BCP/DRP processes, business processes and some design for IT services. I also have studies on IT administration that has accomplished with an ITIL Foundations Certification. And master studies about IT and managing are being done. As Linux Researcher, has experience on developing new products mainly to replace propertary ones. Also has developed a new opensource solution named LinuXchangE. Linux+ certification was obtained as a plus. I have strong knowledge on TCP/IP stack and related protocols. I have knowledge on programming for WEB using PHP and Perl interacting with databases such as MySQL, Postgresql and LDAP (for server side scripting), HTML, WML, JavaScript (for client side); Object Oriented programming with C++. I have been Instructor on security subjects, opensource and processes modeling. Knowledge about non-tech user, comptable matters and IT matters. Specialties: Certified Information System Security Professional (CISSP), Certified Information System Auditor (CISA), Certified Information System Manager (CISM), ITIL Foundations Comptia Linux+ Linux Researcher and implementor for servers on public services, development of similar non-public technologies using GPL software; product integration. Know how to implement ISO27000 Information Security Management System (ISMS) as I have been actively involved getting certification for an employer and I was leading the first audit answer. With my experience, one of the biggest qualities I thing is the cut cost. I am able to reduce IT costs by 75% (depending environment)

    $12.22 /hr
    0 hours
  9. Nguyen Tran Nhan

    Nguyen Tran Nhan Agency Contractor

    senior developer c/c++, android embeded, linux kernel.

    Vietnam - Last active: 1 month ago - Tests: 4 - Portfolio: 1

    With more than 5 years working experience in Software Development and most of the time working with C,C++ technologies, I have gained a certain professionalism level as a Senior C,C++ Developer: • Intensive programming experience using STL: container, algorithm, iterator, smartpointer. BOOST: regex, filesystem, boost::bind, boost::datetime, QT, GTK, … • Strong skill set and experience using open sources frameworks: STLport, Xerces, Santuario, CryptoPP, Xalan, CURL, Pjsip, OpenMGCP, Quagga, OPENSNMP, • Good skills and experience in protocol and reading RFC like, SIP, MGCP, RTP, RTCP, XMPP, SNMP, … • Good skills and experience in programming with posix, multithreading, mutex, condition variable, thread barrier, … • Good skills with programming in linux kernel. Development linux module, netfilter, … • Good skills and experience in system analysis, system designing and performance tuning • Strong skill set and experience using development tools: VIM, ctags, cscope, VISUAL STUDIO, Eclipse, Makefile • Strong skill in VOIP, SIP, XMPP, MGCP, jabberd2, MEGACO, • Good experience with native SDK Blackberry, Native SDK Android. • Good experience in working and managing application and web servers: Apache, Tomcat. Experience in developing Apache module. • Good experience in working with databases: Oracle, MS SQL, My SQL, SQLITE

    Associated with: nccsoft

    $16.67 /hr
    574 hours
  10. Aurelian S.

    Aurelian S. Agency Contractor

    software developer

    Romania - Last active: 21 days ago - Tests: 4 - Portfolio: 1

    Both my experience and interest in software development made in an outstanding professional. Here are some facts that speak for themselves: I have over 20 years of experience in foxpro (starting from FPD26 till VFP9) and over 5 years in software for mobile devices. I like to give realistic promises, being responsive and responsible, concentrating on business needs and communications. Look forward to hearing from you and serving your business.

    Associated with: Acces Soft RO

    $27.00 /hr
    36 hours