Linux System Administrators & Developers

Showing 650 freelancers

Linux System Administrators & Developers

Showing 650 freelancers

Get Your Linux System Administration Project Started Today!

Post your Linux system administration project on oDesk 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 oDesk, 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.

Browse Linux System Administration job posts for project examples or post your job on oDesk for free!

Linux System Administration Job Cost Overview

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

oDesk Linux System Administration Jobs Completed Quarterly

On average, 638 Linux System Administration projects are completed every quarter on oDesk.

638

Time to Complete oDesk Linux System Administration Jobs

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

Average Linux System Administration Freelancer Feedback Score

Linux System Administration oDesk freelancers typically receive a client rating of 4.78.

4.78

Last updated: April 1, 2015

  • System Administrator / DevOps

    12+ years of experience in administration of servers powered by the Linux and FreeBSD operating systems. Full time independent contractor during the last 4 years. * CentOS, Debian, RHEL, Ubuntu; FreeBSD, OpenBSD * AWS, Digital Ocean, Hetzner, Linode * Ansible * Apache, lighttpd, nginx … more

    12+ years of experience in administration of servers powered by the Linux and FreeBSD operating systems. Full time independent contractor during the last 4 years. * CentOS, Debian, RHEL, Ubuntu; FreeBSD, OpenBSD * AWS, Digital Ocean, Hetzner, Linode * Ansible * Apache, lighttpd, nginx, uWSGI * MySQL, MariaDB, PostgreSQL * Postfix, Dovecot, Postgrey, SpamAssassin, ClamAV, OpenDKIM * Docker, KVM, libvirt, LXC, OpenVZ, Vagrant, VirtualBox, Xen, FreeBSD jails * DNS: BIND, NSD, PowerDNS * LVM, DRBD, Heartbeat * Load balancing: haproxy, keepalived, nginx * Quagga, Open vSwitch, iptables, ipfw, pf, bonding, bridging * VPN: StrongSwan, OpenVPN, Racoon * Sensu, Nagios, Munin, SmokePing, Monit, Collectd * SAN: HP MSA, IBM DS * Backups: duplicity, rsnapshot, bacula * Python (Boto, Django, Scrapy), Ruby, shell, PHP * cPanel/WHM, WHMCS (designed and developed from scratch a registrar module for an unsupported domain registry)  less

    python devops linux-system-administration amazon-ec2 unix-system-administration firewalls mysql network-administration tcp-ip unix-shell 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 1587 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 11 TESTS
  • Sr Windows and Linux Systems Admininstrator \ AWS(EC2) Administrator

    I'm autonomous engineer with over 11 years of experience in Linux(Unix) and Windows systems administration. I perform each project to the fullest of my capabilities and with the dedication that is expected from a professional as myself. In … more

    I'm autonomous engineer with over 11 years of experience in Linux(Unix) and Windows systems administration. I perform each project to the fullest of my capabilities and with the dedication that is expected from a professional as myself. In short I've great experience with: - OS deployment, configuration and troubleshooting: CentOS, Ubuntu, Debian, FreeBSD, Windows Server 2003 - 2012R2 - Hosting engines: WHM (cPanel), ISPmanager, Plesk, DirectAdmin, Kloxo,Zpanel - AWS (RDS, EC2, SES, S3, CloudFront, VPC, Route53, RedShift, Elastic Beanstalk etc.) - Server and client apps: WEB (Apache, IIS, Nginx, Varnish, APC, PHP etc), SQL (MySQL, MSSQL administration), FTP (ProFTP, PureFTP, IIS etc.), Mail (Postfix, Zimbra, Dovecot, MS Exchange 2007-2013 etc.). - Deep knowladge in Virtualization: Xen, OpenVZ, KVM, VMware, Hyper-V, Docker. Other skills: Atlassian JIRA\Confluence deployment and troubleshooting. I'm good at server migration, installation and configuration,t troubleshooting and security. Also I'm able to provide on-going support services. Each problem that I solved became a rule which served afterwards to solve other problems. My job it's my rest.  less

    linux-system-administration windows-administration network-administration database-administration cpanel plesk amazon-web-services domain-migration network-security virtualization 00 more less
    • $28.89 HOURLY RATE
    • 5.0
    • 1487 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Cloud Architect / DevOps Engineer / Senior Linux Sysadmin / AWS

    Over the last 10 years I have worked with World Class IT Infrastructure configuring, deploying and maintaining routers/firewalls/servers all over the world using the most recent technologies. In the following list you will find my knowledge in the … more

    Over the last 10 years I have worked with World Class IT Infrastructure configuring, deploying and maintaining routers/firewalls/servers all over the world using the most recent technologies. In the following list you will find my knowledge in the computer and network technologies: Linux servers and desktop administration Apache web servers running in Linux, Windows and Unix (FreeBSD/OpenBSD) Mail servers configuration/administration using qmail, Postfix and Exim Good experience with Cisco routers, switches and firewalls (PIX) DNS servers administration using BIND Control panels knowledge, Plesk, Cpanel, Virtualmin, H-Sphere OpenVPN client/servers configuration Untangle configuration/setup Asterisk setup/configuration using Asterisk source or using fully customized installations like Elastix Services and server monitoring using Zabbix, Nagios, BigBrother and Cacti Database servers using MySQL/MS SQL/PostgreSQL Windows 2000/2003 configuration/administration for AD purposes, Exchange Mail Servers, WWW/DB servers Samba deployments using LDAP backend to store user information Experience with Linux Clusters using Heartbeat and Linux Virtual Server NAS, iSCSI, SMB network storage knowledge. I have experience with FreeNAS and Openfiler Experience with IBM Bladecenter S using HS12 and HS21 servers, from build to put the servers in production using Gentoo/Samba/LDAP/GoSA and Asterisk for the HS12 OpenWRT installations and configuration using Routerboard/PCEngines embedded PCs pfSense configuration/customization I have installed Wordpress, SugarCRM, V-Tiger, OTRS, Zimbra, Roundcube, and many others open source software in production environments  less

    linux-system-administration lamp-administration freebsd amazon-web-services amazon-s3 amazon-ec2 mysql vmware-esx vmware-administration devops 00 more less
    • $44.44 HOURLY RATE
    • 4.9
    • 1217 HOURS
    • URUGUAY
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • Linux administrator / Devops engineer - AWS, Vmware, Puppet, Amazon

    I am self-motivated professional with over 10 yrs. of experience, I have strong work ethic and productive self-starter, proven with success being a freelancer at oDesk. I perform each project to the fullest of my capabilities and with the dedication … more

    I am self-motivated professional with over 10 yrs. of experience, I have strong work ethic and productive self-starter, proven with success being a freelancer at oDesk. I perform each project to the fullest of my capabilities and with the dedication that is expected from a professional as myself. Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals Effective leader - Took over leadership and managed team resources to achieve goals meeting deadlines. I've great experience with: - OS deployment, configuration and troubleshooting: CentOS, Ubuntu, Windows Server 2003 - 2012R2. - AWS (RDS, EC2, SES, S3, CloudFront, VPC, Route53, RedShift, Elastic Beanstalk etc.) - Web / Mail / Application: Apache, Tomcat, Send mail, Zimbra, Postfix, Qmail, Squirrelmail, FTP, Samba, OpenLDAP, POP3/ IMAPS & IIS server, Courier Map, Request Tracker, Openfire IM Server, Kickstart Server, LTSP, Cpanel, WHM and Plesk, Redhat Directory Server, CAS. MS Active Directory Server, WSUS Server, Atlassian JIRA\Confluence deployment and troubleshooting. - Virtualization: Vmware Server, Vmware ESXi Server. - Network Monitoring Tools: NagiOS, MRTG, PRTG, Solarwind, OpManager, OpenNMS, Watsup Gold. - Database: MySQL, Postgresql & MS SQL. - CMS: Drupal, Wordpress, Joomla, Liferay - DMS: Alfresco Well experience in Linux & Windows System administration, Puppet deployment, LDAP, Postfix, NFS/NIS, Samba, MySQL, Liferay, Alfresco, Tomcat, PHP, Apache and many others technologies.  less

    puppet-administration amazon-ec2 virtualization cpanel whm dns apache-administration firewalls linux-system-administration centos nagios vmware-administration mysql database-administration liferay magento drupal wordpress joomla php customer-support custom-cms rackspace-cloudservers varnish-cache memcached apache-ant apache-tomcat redhat-administration 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 1973 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 1 TEST
  • Senior Linux Administrator / Virtualization /Asterisk / VoIP / cPanel

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Advanced Knowledge of Perl programming Network Administration Network Security (Penetration Testing) Server Auditing Technical Support … more

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Advanced Knowledge of Perl programming Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ/ProxMox) Web hosting Control panels such as cPanel,Plesk,DirectAdmin Tweaking and Optimizing Apache for better performance Hardening PHP Data recovery Asterisk/Trixbox/Elastix/VoIP solutions.  less

    linux-system-administration asterisk mysql cpanel whm centos samba apache-administration perl security nagios bash freepbx trixbox 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 6626 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • Amazon Cloud

    Over the past 15 years I have been involved in systems and network engineering across heterogeneous environments. During the last 7 years I have worked in the design and implementation of Virtualization solutions with VMware and small to medium size … more

    Over the past 15 years I have been involved in systems and network engineering across heterogeneous environments. During the last 7 years I have worked in the design and implementation of Virtualization solutions with VMware and small to medium size Datacenters. For the last 2 years I worked on several Cloud Migration, SaaS Deployment projects and Architecting/Managing Amazon SaaS Environments. Some recent responsibilities/projects include: * Server Operating Systems: Amazon Linux, Windows Servers * Monitoring/Trending/Notification with CloudWatch, SNS, Nagios, Munin, DotCom-Monitor * Design/Implementation of SaaS Environment in multiple Amazon VPCs * Amazon Console Security using IAM / CLI and API Tools * Database Services utilizing Oracle, MSSQL and MySQL RDS * Reverse-Proxying/Load-Balancing using Nginx, HAProxy and Amazon ELB * Storage/Content Delivery utilizing CloudFront with S3 and Akamai * Host Intrusion Detection utilizing OSSEC (AlienVault) * Vulnerability Assessment utilizing QualysGuard (internally to VPC and externally to websites) * Application Servers: JBoss, Oracle Application Server, WebLogic * Email Servers: Sendmail, Procmail, Postfix * VPNs: Cisco VPN, Cisco Anyconnect, OpenVPN, OpenVPN Access Server * Automation of Amazon Deployments with Chef and Cloudformation * Server Migrations to the Cloud using Double-Take, Amazon VMDK Import, Rsync  less

    linux-system-administration network-administration 00 more less
    • $31.11 HOURLY RATE
    • 5.0
    • 6963 HOURS
    • CYPRUS
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • 9+ years exp in hosting industry. NIX/WIN servers config/tuning

    server-administration, linux-system-administration, windows-administration, unix, freebsd, clustering, amazon-web-services, virtualization, openvz, plesk, cpanel, customer-support, helpdesk-support, internet-applications, database-management, mysql, postgresql, microsoft-sql-server, rdbms, mail-servers, dns, web-services, iis, apache, lighttpd, nginx, apache-tomcat, jboss, security, openvpn, billing

    centos freebsd windows-administration virtualization linux-system-administration unix-shell unix-system-administration apache-administration apache-tomcat iis haproxy dbms mysql sqlite oracle-database oracle-application-server microsoft-visio virtuoso vmware-administration ftp ssl ssh helpdesk-support sendmail exim postfix nagios zabbix snmp cpanel whm plesk php perl c++ bash borland-c++-builder microsoft-visual-c++ svn tortoise-svn vpn openvz openvpn technical-support redhat-administration 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 1632 HOURS
    • MONTENEGRO
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • Linux System Admin, Tech Hosting Support, cPanel/WHM Specialist

    I have more than 5 years in networking industries , 4 years in System Administration and hosting environment. Bsc in Computing .Certified with CCNA,CCNP in progress. 4 years in web hosting industries with Technical Support, System Administration and Business Development … more

    I have more than 5 years in networking industries , 4 years in System Administration and hosting environment. Bsc in Computing .Certified with CCNA,CCNP in progress. 4 years in web hosting industries with Technical Support, System Administration and Business Development (web hosting) experience. TechnicalSkills and Experience: Ability to build, manage and troubleshoot control panel * Cpanel/WHM - DirectAdmin - PLESK - WebMin - Kloxo control panels Operating System * CentOS * Fedora Core * Ubuntu Including the following: • WWW Servers - Apache. • Control panels WHM/cPanel • Networking - TCP/IP, NFS, Telnet, FTP, DNS, DHCP, NAT, ifconfig, route, netstat, xinetd, HTTP, NIS/YP • Mail - SMTP, POP, IMAP, Qmail, Sendmail • Admin Tools - admintool ,linuxconf, vmstat, iostat, top, trace route, ping, sar, ntop, webmin • Backup - tar, cpio, dump (ufsdump) • Security - SSH, SSL, IPchains, IPtables, TCP Wrappers, Tripwire, port scanners, password crackers Server Security hardening * Firewall [csf/apf/iptables] * Tripwire * chkrootkit , rkhunter * Secure Shell * PHP hardening, sysctl hardening etc Web Server hardening and tweaking. * Apache optimization * Adding mod_security rules * Mod_evasive , mod_limitipconn for preventing DDOS * Tweaking of apache directives Billing System * WHMCS - Blesta Database * MySQL MTA * Qmail with SpamAssassin + ClamAV * Exim with SpamAssassin + ClamAV Primary Language * Arabic Secondary Language (excellent) * English * Please note I apologize to accept any work that contain Adult contents, Wine, Dating and gambling.  less

    network-administration linux-system-administration cpanel whm plesk chat-support email-technical-support arabic whmcs amazon-ec2 amazon-s3 amazon-web-services centos apache-administration security exim iptables fedora mail-server-implementation 00 more less
    • $22.22 HOURLY RATE
    • 4.9
    • 2040 HOURS
    • EGYPT
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 9 TESTS
    ASSOCIATED WITH:
  • Full Stack Python/Django/AngularJS web developer/DevOps

    NOTE Only long term projects Only high quality code, i can't write low quality/quick/dirty low value code Technologies stack (top 5%) Python, Django, PostgreSQL, MongoDB, ElasticSearch, HTML, JavaScript, AngularJS, CSS, LESS, CoffeScript, GIT, Nginx, AJAX, REST, MongoDB … more

    NOTE Only long term projects Only high quality code, i can't write low quality/quick/dirty low value code Technologies stack (top 5%) Python, Django, PostgreSQL, MongoDB, ElasticSearch, HTML, JavaScript, AngularJS, CSS, LESS, CoffeScript, GIT, Nginx, AJAX, REST, MongoDB, OpenVZ, Linux, Unix, Debian, Ubuntu Over the last years I had a wide experience in different industries, combining my IT and programmer's skills. I'm fluent in Python language and different Pythonic tools and libraries. Also, being a perfectionist, i like when every aspect and part of a project is ideally balanced and reliable. Thus I'm also fluent in different frontend technologies, and sometimes - design. My core desire lies in developing prominent projects, that will be helpful in day-to-day life.  less

    django-framework python javascript mysql unix-system-administration linux-system-administration postgresql node.js natural-language-processing go-programming-language 00 more less
    • $44.44 HOURLY RATE
    • 4.2
    • 1089 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 10 TESTS
  • ServerOptimization, AWS, Cloud, AutoScaling, RubyRails,Jira, MySQL

    Within last 10 years, I have provided support for hundreds of clients including start-ups and thousands of servers/websites including cloud servers like AWS and rackspace. Optimizing servers/websites, automation and various linux servers like rubyrails, python, php, tomcat, jira … more

    Within last 10 years, I have provided support for hundreds of clients including start-ups and thousands of servers/websites including cloud servers like AWS and rackspace. Optimizing servers/websites, automation and various linux servers like rubyrails, python, php, tomcat, jira, confluence, cpanel, plesk, mysql, mail servers, database / application scaling and Load balancers is just few of my skills. Love to work in deploying challenging applications, server migrations /configurations and start-up projects. I also have some exp with php coding and has developed interfaces as part of server administration.  less

    linux-system-administration lamp-administration windows-administration amazon-ec2 atlassian-jira atlassian-confluence php zabbix amazon-s3 amazon-rds amazon-web-services rightscale wordpress seo 00 more less
    • $50.00 HOURLY RATE
    • 5.0
    • 1872 HOURS
    • INDIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 9 TESTS
    GROUPS:
    ASSOCIATED WITH:
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