CentOS Freelancers

Showing 1,070 freelancers

CentOS Freelancers

Showing 1,070 freelancers

Browse Centos job posts for project examples or post your job on oDesk for free!

Centos Job Cost Overview

Typical total cost of oDesk Centos projects based on completed and fixed-price jobs.

oDesk Centos Jobs Completed Quarterly

On average, 138 Centos projects are completed every quarter on oDesk.

138

Time to Complete oDesk Centos Jobs

Time needed to complete a Centos project on oDesk.

Average Centos Freelancer Feedback Score

Centos oDesk freelancers typically receive a client rating of 4.84.

4.84

Last updated: March 1, 2015

  • Senior Linux system administrator, network administrator

    I am expert Linux Server Administrator having 10+ years experience and ready to work. I have extended experience on web hosting technologies and cloud. Ready to start working at your project right now! -- Below you can see my general skills … more

    I am expert Linux Server Administrator having 10+ years experience and ready to work. I have extended experience on web hosting technologies and cloud. Ready to start working at your project right now! -- Below you can see my general skills -- * OS’s: Debian, Ubuntu, CentOS, RedHat, CloudLinux, Gentoo, FreeBSD (administration, configuration, audit, optimization); * Software Configuration Management: Salt, Ansible; * Web servers: nginx, Apache (installation, configuration, optimization); * Database servers: MySQL, Postgresql, MariaDB, Percona, MongoDB (installation, configuration, optimization, profiling); * Mail servers: Exim, Postfix, Sendmail, Zimbra, Qmail, Dovecot + Spamassassin, ClamAV; * Webhosting Administration Panel: ISPManager, Billmanager, VMManager, cPanel, ISPConfig, Plesk, DirectAdmin, VestaCP, webmin; * Amazon: AWS setup or Amazon tools; * Virtualization: OpenVZ, XEN, KVM, VMWare, VirtualBox; * Load balancing: HAproxy, Nginx, PowerDNS, BIND, Route53; * System Backup and Restore automatization;   * Network services: dns (bind, powerdns), vpn (mpd,pptpd,openvpn), firewalls (iptables/ipfw), file server (samba3/4), proxies (squid, 3proxy, privoxy, nginx); * Monitoring: Zabbix, Munin, Nagios; * FTP: Vsftp, Pureftp, Proftp. Thank you for viewing!  less

    debian-os centos database-programming mysql php linux-system-administration database-administration nginx apache-administration openvz 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 15 HOURS
    • MONTENEGRO
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 12 TESTS
  • AWS Solution Architect/Linux System Administrator/Devops

    Having more than 8 years of experience in Linux/Unix IT world, from installation, configuration of OS, packages, designing High Available (HA) and Salable environments. Worked for various clients and domains - IT Telecom, Mobile and Pharma clients. More than 4 … more

    Having more than 8 years of experience in Linux/Unix IT world, from installation, configuration of OS, packages, designing High Available (HA) and Salable environments. Worked for various clients and domains - IT Telecom, Mobile and Pharma clients. More than 4 years of experience in Amazon Web Services ( AWS ), EC2, RDS, VPC, S3, Elastic Beanstalk , SQS, SNS , SES , Route 53, IAM , Cloud watch. Designed and implemented HA and Auto Salable environments. Worked on Hardening security, Cost optimization and Performance Optimization. Load Balancing, Backup and Disaster Recovery ( DR ) environments.Automation process with chef / Puppet / AWS elastic beastalk heavily with 0 downtime deployment Managed and monitored 100+ VMs for 20+ clients using various tools and scripts. Automated environment backups, deployments, scaling using various tools, scripts and REST API command line tools. Built tools to Vertical and Horizontal scale in and out. Regular security audits, cost optimization, backup audits. I am always look for new challenges and love my work.  less

    linux-system-administration amazon-web-services amazon-ec2 amazon-s3 amazon-rds ubuntu redhat-administration centos windows-administration 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 560 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 2 TESTS
  • Linux Admin / Freelaner SystemAdmin /AWS Ec2/ Nginx /WordPress/Magento

    I have been Server Admin and Web Developer for over 10 years, I worked with many top-rated websites all over the world. I am expert with LEMP and LAMP system, very good at speeding up servers and sites. For some … more

    I have been Server Admin and Web Developer for over 10 years, I worked with many top-rated websites all over the world. I am expert with LEMP and LAMP system, very good at speeding up servers and sites. For some personal reasons, I MOVED back to Vietnam. I am also working at Elance and Freelancer. If you need references, please don't hesitate to contact me. http://vincosolution.com/ My Blog: http://blog.vincosolution.com/ My Linkedin: https://www.linkedin.com/profile/view?id=204192625 Security Portfolio: http://goo.gl/75iNSS http://sangte.blogspot.com/ Hall of Fame: https://www.apachefriends.org/about.html I am very experienced with * Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu, FreeBSD, gentoo, Mac OS X Server), * Virtualization: (Vmware Esxi 5.x, Openvz, Virtuozzo, Xen, KVM, vserver), * Cloud hosting (Amazon EC2, AWS, S3, RDS, simple Cache), * Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies, tcpdump), * Web servers (apache, nginx, lighttpd, tomcat, ssl installation and troubleshooting), * Caching ( apc/xcache/memcached/varnish/nginx) * Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), * Bulk marketing (Dkim, spf, high speed/inboxing, interspire), * Automation (puppet, perl/shell/awk scripting), * Monitoring (nagios, zabbix, munin), * Hosting Ccontrol Panels (Cpanel/WHM, Plesk, Directadmin, ISPconfig..). * Mobile Application (Android / iOS / Windows Phone)  less

    linux-system-administration database-administration amazon-ec2 rackspace-cloudservers nginx varnish-cache memcached apache-administration mail-server-implementation network-administration openvpn subversion iptables whm cpanel plesk postfix exim ubuntu centos fedora squid bash security dhcp mysql virtualization amazon-web-services amazon-s3 unix-shell wordpress magento joomla 00 more less
    • $38.89 HOURLY RATE
    • 4.8
    • 1635 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 6 TESTS
    GROUPS:
  • Linux , Cisco ,Vmware , Voip, firewall , security specialist

    I want to utilize my knowledge, skills and professional experience in order to contribute to the growth of the company I am working for whilst improving myself. SKILLS:network engineer ,system administrator(RedHat,CentOS,FreeBSD,OpenBSD,WIndows 2000,2003 server … more

    I want to utilize my knowledge, skills and professional experience in order to contribute to the growth of the company I am working for whilst improving myself. SKILLS:network engineer ,system administrator(RedHat,CentOS,FreeBSD,OpenBSD,WIndows 2000,2003 server), cisco certified specialist(CCNA) Configuration of CISCO routers and switches,firewalls,servers:cisco 36xx,65xx, series,ASA firewall 55xx series, Implementation , configuration,design ,troubleshooting of basic routing protocols(BGP,EIGRP,RIP,OSPF,QoS,MPLS,HSRP,VRRP,GLBP) , Security: IPsec and many vpn solutions,certificate setup 1 Web servers - Apache 2.x,nginx,Squid proxy 2 Mail servers -Postfix,qmail ,sendmail,Mdaemon 3 FTP servers -WuFTPD,Vftpd 4 DNS –bind version 9 ,VPN (Openvpn, IPSEC implementation ) 5 DATABASES-Sql,mysql,postgresql,sqlite 6 LVM ,RAID(0,1,5,10) configuration 7 Experinece in network monitoring tools:Nagios,MRTG ,Cacti  less

    network-administration freebsd cisco-routers openbsd cisco-voip cisco-asa cpanel linux-system-administration unix-shell nagios snmp windows-administration helpdesk-support apache-tomcat firewalls vpn tcp-ip virtualization dns mail-server-implementation postfix openvpn mysql nginx squid translation-turkish-english cisco-ios translation-russian-english translation-english-russian translation-english-turkish smtp ssl wordpress drupal ubuntu centos ssh asterisk 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 916 HOURS
    • GEORGIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 18 TESTS
    GROUPS:
  • Linux administrator with website migration and development experience

    Security analyst; Malware removal; Server securing; Server administration; Website migration; Server optimization; Website optimization. God of email. God of migration :)) 100% positive feedbacks, prooved experience and portfolio. I'm specialist of: System Administration, Linux (CentOS, Ubuntu, Debian), Security Setup, Domain … more

    Security analyst; Malware removal; Server securing; Server administration; Website migration; Server optimization; Website optimization. God of email. God of migration :)) 100% positive feedbacks, prooved experience and portfolio. I'm specialist of: System Administration, Linux (CentOS, Ubuntu, Debian), Security Setup, Domain Migration, Domain Fixing, Server/Website speed Optimization, MySQL, Website Development and other. My experience installing and configuring servers is about 15 years. I have several working projects developed by me and written by me. They are located on a server that is configured by me. In addition, I have experience of writing various scripts, experience network security, installation and optimization of MySQL, etc. I hope I will be the best choice to start your project from scratch, even if he plans to be heavily loaded. My primary skills: 1) Migration skills: complete domain migration from legacy to new platform, including web content, email, database, DNS. 2) SEO skills: search optimization, including server setup and source-code optimization. 3) Website creator skills: using CMS or just plain editor, experience with heavyload projects. 4) Linux system administration skills: server setup, web-servers administration(apache, lighttpd), database optimization for heavy-loaded projects. Experience with cluster system, and rpm\deb based Linuxes. 5) Security analysis skills: searching of malware, checking vulnerabilities, website security, detecting outside intrusion or leaks etc. 6) Backup and recovery skills: backup and restore webcontent, email, using my own software or generic applications. I'm seeking for following projects: 1) System administration 2) Domain migration 3) Website developpment 4) Search Engine Optimization 5) Security administration 6) Server setup  less

    linux-system-administration bash-shell-scripting domain-migration mysql php centos lamp-administration dns wordpress cpanel 00 more less
    • $15.00 HOURLY RATE
    • 4.9
    • 10 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • System Administrator

    I'm a System Administrator with 5 years of experience. Also, I have couple cPanel certificates: https://university.cpanel.net/c-summary.php?code=zzqd-532226 Currently I'm FreeLancer I can very quickly master the new system, suggest some alternative solutions … more

    I'm a System Administrator with 5 years of experience. Also, I have couple cPanel certificates: https://university.cpanel.net/c-summary.php?code=zzqd-532226 Currently I'm FreeLancer I can very quickly master the new system, suggest some alternative solutions etc. I'm young and experienced Linux Administrator. I can help you with server installation/configuration, recommend some hosting providers etc. I like to learn new technologies or improve my knowledge with old ones. I don't bid projects which I won't be able to complete as others do.  less

    cpanel apache-administration ftp mysql whm technical-support linux-system-administration centos amazon-ec2 nagios 00 more less
    • $22.22 HOURLY RATE
    • 4.6
    • 690 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • Sr Linux / Amazon EC2 / Migrations / Nginx / Security / DevOps

    A self-motivated System and Network security administrator with more than 10 years in the management and analysis of Linux/Unix enterprise Servers (60- 70 servers). With deep and advance knowledge of highly scalable servers, Cloud Computing, High performance, Hardening Servers … more

    A self-motivated System and Network security administrator with more than 10 years in the management and analysis of Linux/Unix enterprise Servers (60- 70 servers). With deep and advance knowledge of highly scalable servers, Cloud Computing, High performance, Hardening Servers, Migrations, Ethical hacking, Development Operations - DevOps, Open Source services and Server optimization. Certifications such as: Certified Ethical Hacker - Red Hat Certified Engineer - Cisco CCNA. Expertise in: MIGRATIONS: AMAZON/Wordpress/Magento/LAMP/Cpanel migration plans and implementation, backup-restore and recovery plans. I have helped dozens of clients migrate their web sites and applications into the CLOUD VPC. Design and build Web Servers with HIGH PERFORMANCE (LAMP, NGINX/python, Nginx/Varnish, Nginx/php-fpm, Jboss, Apache tomcat and Varnish) - Improve and Fix performance issues, service optimization, security issues and deployments. MALWARE removal and analysis: WordPress / Magento / Joomla Malware removal and remediation, Incident handling and Forensics analysis. BOOST and optimize websites with: NGINX, Varnish, REDIS, Amazon S3, Memcached, APC, apache tunning and mysql tunning, Amazon CloudFront and more. Amazon Cloud Computing (AWS) - AMAZON EC2, amazon CDN S3, amazon RDS, amazon ELB, Amazon AutoScaling, Amazon VPC, CloudFront, Route53, etc. Also Management of multiple Control panels like Rackspace Cloud Computing, SoftLayer, GoDaddy, HostGator, dreamhost and MediaTemple. DevOps and Continuous integration: Docker + vagrant, Vagrant + Puppet, Puppet + Git, Docker + Ansible. Continuous integration with Jenkins, travisCI, distelli and more... Designing and deploying scalable & Highly available systems such as: Amazon Load Balancing (ELB), Hearbeat, HAProxy, mysql cluster, apache cluster... Network and web security such as: Vulnerability Assessments, Hardening servers, security audits, Penetration testing, Virus/Malware/Threats/Vulnerabilities countermeasures, web security, fail2ban, Tripwire-AIDE-OSSEC, mod_security, mod_evasive, Denial of Services (DDOS) countermeasures, Firewalls (iptables, CSF and apf), etc. VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, maintenance and high level of Administration. Databases Administration such as: Mysql tweaking and tunning, MongoDB, load balancing and Mysql replication (Master & Slave) for High traffic. Database: Mysql tweaking and tunning, MongoDB, ElasticSearch, Apache Solr, Sphinx, lucene, MariaDB, Postgresql replication & Pgpool, Mysql load balancing and Mysql replication (Master & Slave) for High traffic. Networking: TCP/IP high expertise, NAT, FIREWALLS, CISCO routing and switching and Packet analysis with tcpdump and wireshark. Storage solutions and Directory management: SAMBA, NFS, FTP and sftp. LVM and RAID*. SCRIPTING: Bash and python. Proficient with MAIL Servers: postfix, sendmail and Zimbra. Source control versioning: GIT and SVN. Deploying and maintaining Monitoring systems such as: nagios, ZAbbix, cacti and Jboss Operation Network (JON). Backups solutions: amanda, rsync, Amazon backups and rsnapshot. Research & development (R & D) for any open source service and technology.  less

    network-security amazon-ec2 nginx linux-system-administration penetration-testing apache-administration ubuntu virtualization samba security bash mysql amazon-rds amazon-web-services nagios rackspace-cloudservers clustering iptables centos git apache-tomcat unix-system-administration varnish-cache django-framework 00 more less
    • $24.99 HOURLY RATE
    • 4.9
    • 7137 HOURS
    • MEXICO
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
  • Senior Linux System Administrator

    Total of 6 year and 2 months experience as Systems Administrator with experience in Sun Solaris, Red Hat Enterprise Linux, and Windows.Good working knowledge in UNIX/Linux Command Line Interface and Network Services as well as control panels and Openstack.

    linux-system-administration computer-networking network-administration centos mysql java cpanel plesk vmware-administration openstack 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 29 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 1 TEST
  • Mobile Application with 2D Games

    I am passionate about to developing a Mobile application development specially 2D games and hybrid technology. I have more then 6 years of experience in UI/ UX interface and mobile apps. I am always on top of the current design trends and keep myself updated about latest mobile and tablets design patterns.

    plesk whm cpanel centos opensuse iis apache-administration 00 more less
    • $16.00 HOURLY RATE
    • 4.7
    • 387 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Network/System Engineer

    More than 12 years experience with Linux Red Hat/CentOS and Debian/Ubuntu. I've done many big migrations from 1 website with a couple of MB's till thousands of websites with 80GB+. I prefer working directly on servers … more

    More than 12 years experience with Linux Red Hat/CentOS and Debian/Ubuntu. I've done many big migrations from 1 website with a couple of MB's till thousands of websites with 80GB+. I prefer working directly on servers (via ssh access), but am also familiar with Plesk and cPanel/WHM. As a certified Linux Professional (lpi.org) I like working with bash as scripting language. I am also a network professional (CCNP security (Cisco)) and certified MySQL dba. I only do jobs which I can solve!  less

    postfix centos ssl ftp ssh tcp-ip apache-administration mysql bash ffmpeg nagios pci-compliance plesk ubuntu phpmyadmin dns 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 34 HOURS
    • NETHERLANDS
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
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