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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 Job Cost Overview

Typical total cost of Upwork Linux System Administration projects based on completed and fixed-price jobs.

Upwork Linux System Administration Jobs Completed Quarterly

On average, 617 Linux System Administration projects are completed every quarter on Upwork.

617

Time to Complete Upwork Linux System Administration Jobs

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.

4.79
Last updated: August 1, 2015
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  1. Panayotis Tsiamis

    Panayotis Tsiamis

    Senior Systems and Software Engineer

    Greece - Tests: 7 - Portfolio: 14

    Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.

    $30.00 /hr
    426 hours
    0.00
  2. Wesam D.

    Developer

    Canada - Tests: 1

    CMS: Drupal, Moodle, Typo3, Wordpress and Joomla Languages: C++, HTML5, CSS3, JavaScript, Ajax, JQuery, XML, ActionScript, PHP, Django, and Java Databases: MySql, PostgreSQL, Oracle and Microsoft SQL Software: Microsoft Office, Flash, Photoshop, Dreamweaver, Audacity, WebEx and GoToTraining Servers: Apache2, Nginx, Tomcat, Windows/IIS, Adobe Connect, Adobe Media Server and Red5 Media server Team Management: JIRA and Teamwork Operating Systems: Windows, Linux and Mac Cloud Computing: Amazon EC2, S3, and RDS. Eucalyptus and VMware vSphere.

    $33.33 /hr
    390 hours
    0.00
  3. Casey Strouse

    Casey Strouse Agency Contractor

    I solve business problems using elegant software systems

    United States - Tests: 16 - Portfolio: 10

    Free consultation. I've been developing software for the web since 2001 and have since then become quite adept at designing and implementing systems in PHP and Ruby with a recent focus on custom Wordpress development and consulting. Because of my breadth of experience with different technologies I'm very good at analyzing a project and deciding how best to approach it and which technologies are the best fit for your project and your company's needs. When it comes to development I prefer to work on small and medium-sized projects that involved modifying existing systems rather than building systems from scratch. Clients who can communicate their problem domain effectively and prefer a hands-on developer who will work with them closely are my favorite. I like to use a highly iterative process with lots of client involvement to ensure that my solutions are exactly what you're looking for. I work on a Mac, write my code in TextMate, use git for keeping track of my work, and use agile development practices to provide robust software that solves your unique business problem quickly and efficiently. I work well with others and can get up to speed on a new project in a few hours. If you'd like to work together or see what I can offer to your organization please contact me for a FREE CONSULTATION today.

    Groups: MediaPiston Writers

    Associated with: Bass Designs Agency

    $33.33 /hr
    528 hours
    4.47
  4. Gaurav Kushwaha

    Gaurav Kushwaha Agency Contractor

    Expert System Administrator, Expert Programmer ( Java and scripting )

    India - Tests: 10

    Over the last 5 yrs I am working in areas like J2EE, Linux and Windows system administration which includes WebServers ( Apache, IIS ), Mail Servers ( Postfix , Exchange ),LDAP, AD, DNS, MySQL, CMS ( Joomla, Drupal, WP, Magento), Asterisk, Nagios, SMS Gateway etc. I have done virtualization using HyperV, VmWare and VirtualBox. Also, I have also setup security for systems using vlans, IpTables, port blocking etc. In addition to above mentioned server systems, I have done migrations of websites from Linux to Windows and vice versa,and migrations of mail servers from postfix to exchange and exchange to office365 and vice versa. I have setup also backups ( both enterprise grade and with small scripts ). Till now I have worked on Labtech and Nagios to monitor and also to provide proactive maintenance to systems. I know programming as well, so I try not to do repetitive work and hence create scripts, which results in less errors and better productivity. I have knowledge of Java, Java script, Shell Scripting, php and SQL.

    Groups: Microsoft Certified Professionals

    Associated with: AKBSoftTech

    $8.33 /hr
    460 hours
    4.97
  5. Niels S.

    Niels S.

    Student, Hobby programmer and part-time systems administrator

    Denmark - Tests: 4

    Hi, my name is Niels. I am 31 years old, and love everything computers and science! My main language is Danish, but my English is very good. I am a student in Computer-Science so i can be a "real" programmer, and I have been working part time as a systems administrator at a local school. I know a little about a lot, I love to dabble in new things and technologies. I am a quick learner. My future is in programming: I have been teaching myself C# at home in my spare time, and have been making a few useful application for the school where I worked. How am I as a person: I am a kind, gentle person, always with a smile and always sees the good in all people and things. I am a very calm, dedicated and honest. Interest areas are: - Computers (from physical to software) - Programming (C# - winforms, just started learning C# WPF) - Servers (linux/windows I have a couple for personal use) - Virtualization (I use proxmox on all my servers, and love virtualization) - Websites (I have built and maintain a few websites, mostly with wordpress)

    $15.00 /hr
    117 hours
    5.00
  6. Mykhailo K.

    Mykhailo K.

    Amazon AWS/Linux/Security Expert

    Ukraine - Tests: 12 - Portfolio: 1

    The last 10 years I developed the whole IT infrastructure in large publishing house company, implemented domain, mail, documents workflow, and web services for 500+ company employees. List of operational systems and technologies I have used the last ten years: Dedicated Servers and VPS setup, configuration, security - both Windows and Linux. Work with CentOS, Ubuntu, Debian, Amazon Linux, FreeBSD, Windows 2003/2008/2012 Servers. Server administration Panels, setup and configure - Plesk, DirectAdmin, Cpanel, Webmin, WHMCS, VestaCP. MySQL, MSSQL, Apache, IIS - setup, configuration, optimize for performance. Wordpress - performance optimization, security, migration.

    $30.00 /hr
    812 hours
    4.97
  7. Muyassir S.

    Muyassir S. Agency Contractor

    Server Admin / Wordpress Expert

    Pakistan - Tests: 8 - Portfolio: 3

    Its near about two years that i am providing my services of.. - Server Administration ( Linux / Windows Server ) - Troubleshooting issues - Technical Support - Managing Shared , Reseller, VPS and Dedicated Web-Hosting - WordPress Hosting / Management / Migration / Issues Resolving - WHM/Cpanel , Plesk, Direct Admin - iis, Apache, Nginx Server - Websites Migration From Shared , VPS, Reseller and Dedicated Server - Installing Software, SVN, modules on Server - Web Hosting Agent Managing clients hosting accounts, Servers and web sites migration from a2Hositng, Bluehost, Godaddy, Hostgator, SiteGround, Liquid Webhosting, hawkhost, knownhost, web-hosting , Fatcow, ipage, 100TB.com, ServedInt, 1and1,blizhosting and Wp-Engine

    Associated with: MIII-IT Solutions

    $9.88 /hr
    2,566 hours
    4.99
  8. Andrei Volkov

    Andrei Volkov Agency Contractor

    Linux specialist (Sec/Opt/Dev, C/Perl/Python/PHP/BASH)

    Belarus - Tests: 5 - Portfolio: 13

    Important: ------------------- Enhanced shield of your Web application with mod_security! Should be always. It is task #1 after installation ANY web application! ------------------- About Me and more: ------------------- I have over 16 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if I found some problems. And I am always interested in looking for mostly economical and productive solutions. Of course, Cpanel, WHM, Webmin, Plesk .... I know how are working these web-wrappers and I support their. I can will tune and to make the checking of these wrappers. But that more important !! I can work without this))) Directly use configuration files of services and etc etc. Usually, it is better way on dedicated servers. ) TCP, IPv4 , IPv6, IPX ... - WiFi, WEP, WPA, WPA2 ... - SElinux, Apparmor, Smack, Tomoyo ... - LAMP ( Apache, Nginx, PHP, Perl, Mysql, Mongo), REDMINE ... - Cpanel, Zpanel, ISP ... - MySQL clustering and replication DNS servers ... - SENDMAIL, EXIM, POSTFIX (POSTFIXADMIN,MYSQL,DOVECOT,POLICYD) ... - HPC system: Torque, Maui, Moab for HPC clusters, Infiniband, FC interconnect, iSCSI, SCST, DRBD, OFED, OPENMPI ... - OpenLDAP ... - VPN with OpenVPN, PPTP, StrongVPN ... - Nagios, Zabbix, Ganglia, OSSEC ... - SVN, CVS, GIT ... - KVM, Xen, OpenStack, Proxmox ... - NBD, RAID, LVM ... etc etc During these years I have been in a large number of tasks related to administration of network devices, as well as with simple and complex server systems. I manage servers for the HPC tasks and for network infrastructure of Internet and Intranet - DNS,DHCP,*FTP,HTTP(S),MAIL etc etc. The main goals - the monitoring of the performance and the security. I also implement tasks of data backup and troubleshooting, support for the users. I have comprehensive work skills with systems based on Debian, Redhat, CentOS, SLES, OpenSuse. I've got more than 8 years of experience in developing the different software with use of C, Perl, Python, Bash, HTML on system and user levels. For example, very important skill in developing and the modification of RPM packages (rpmbuild, rebuild, kernels), custom kernels and etc etc. ------------------- Often: ------------------- How the standart service for VPS's and VDS's projects and dedicated servers: IDS, IPS, the control of contents of log's files, the control of load of the cpu, the memory, the hard disks; the backups of the databases and the files; install or update software, consultations. Emergency call via sms to cell phone. ------------------- STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. VERY OFFTEN: IF YOURS WP WAS HACKED 1. disable plugins 2. execute # diff -r dir1 dir2 3. repeat for plugins if you have last version of WP code: ~ 80% cases - problems: plugin low quality (look on author: from where and who is) ~ 15% cases - problems: theme low quality (look on author: from where and who is) ~ 5% 0day of WP also you need disable all shell function in php and enable suphp/suexec modes. STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. I am getting a lot questions about reliability and quality distributives/clones Ubuntu. Results on practice - Ubuntu clones - worst for server. It is truth. If you $buntu guy, I can't help you right now. I only can recommend Debian way for server. =============== 3. Nginx of course is good program. For small/middle vps. But in serious projects - apache. Nginx will be suitable for frontend. It is only practice. Always for all web application should be mod_security module. Firewall of level of web application on 7 level of OSI. Each web application/site should be under own user in environment of vps or on dedicated servers. =============== 4. By topic Wordpress. For optimisation services of OS , namely system IO(type of disks or partitions) and DB(type of engines of tables), need to use empty installation (default variants). Most problems of work WP contains in itself - customized plugins or themes. For analyze pages need begin with such services as http://gtmetrix.com. =============== Sunday - day of rest. Or in emergency case - payment with double rate. best regards, Andrei odesk.by / upwork.link PS: With love from USSR. ;-)

    Associated with: UPWORK.LINK

    $16.00 /hr
    1,009 hours
    4.98
  9. Randy Snow

    Randy Snow

    DEPENDABLE Project Manager - LAMP Admin - Network Admin

    United States - Tests: 8

    With well over 17 years in the Information Technology field, I have developed strong skills as a problem solver. I have worked extensively as a manager and project leader. I have been involved with upper level management with key roles in the direction and implementation of corporate IT structure. I am skilled at hardware and software troubleshooting, implementation, and function. I am specifically looking for jobs where I set my own work schedule. I prefer to discuss and agree on a fixed budget ahead of each project. I work best when presented with clear concise goals and a solid due date.

    $22.22 /hr
    29 hours
    5.00