Red Hat Enterprise Linux (RHEL) Freelancers

Showing 131 freelancers

Red Hat Enterprise Linux (RHEL) Freelancers

Showing 131 freelancers

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Rhel Job Cost Overview

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

oDesk Rhel Jobs Completed Quarterly

On average, 4 Rhel projects are completed every quarter on oDesk.

4

Time to Complete oDesk Rhel Jobs

Time needed to complete a Rhel project on oDesk.

Average Rhel Freelancer Feedback Score

Rhel oDesk freelancers typically receive a client rating of 4.81.

4.81

Last updated: March 1, 2015

  • Solutions Architect, Linux Administrator, AWS Ninja, DevOps Evangelist

    Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients … more

    Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients and their team is always my priority. I have been working with all the major providers: Rackspace, Amazon, Softlayer, Godaddy, Hostgator, Bluehost, Linode, DreamHost, Mediatemple, Lunarpages. Expertise in Linux Administration is as follows (but not limted to) Server Distributions: RedHat, Centos, Fedora, Debian, Ubuntu, Gentoo, Suse, Mandriva, Opensuse, Knoppix, Slackware. Web servers: Apache, Lighttpd, Nginx, Tomcat File servers: Proftpd, Pureftpd, Vsftpd, Sftpd, TFTP, NFS, Samba DNS servers: Bind9, MyDNS, NSD Mail servers: Postfix(TLS,SASL), Exim, Sendmail, Qmail, Dovecot, Courier. Logging services: Syslog, Rsyslog, Syslog-ng Proxy servers: Squid(forward and reverse proxy), nginx, pound, lighttpd. Firewalls: Iptable scripts and Advance Policies Firewall with bruteforce detection. Firewall configuration: NAT, IP Masquerade Jabber servers: Openfire, Ejabberd, Djabberd Database servers: MySQL, Postgresql Backup: Bacula, bash scripts. VPN: PPTP Virtualisation: Openvz/Virtuozzo, Xen, Qemu, KVM, VMware Server, Parallels Workstation, Virtualbox headless, HyperVM. Monitoring: Nagios, munin, zabbix, zenoss Automation: Puppet(fan), custom bash scripts. Revision control: Git(fan), Subversion Package management: yum, rpm, dpkg, aptitude, apt-get, emerge Security: Nessus, John The Ripper, Tiger, PGP, GPG, nmap, Openvas, Snort, Ettercap, arpwatch, SSH, SSL, TLS, TCP Wrappers, Ethereal, dsniff, tcpdump, portsentry, rkhunter, chkrootkit, clamav, SPF, Spamassassin, domain keys. Cloud computing: Amazon (EC2, EBS, S3, CloudWatch), Rackspace services. Assessment tools: sar, vmstat, iostat, mpstat, netstat, iptraf, iftop, lsof, ntop, serverstats Misc services: NTP, Cups, DHCP, Dnsmasq  less

    lamp-administration apache-administration linux-system-administration postfix whm iis unix-shell mysql vpn nagios munin ftp cpanel plesk nginx postgresql lighttpd subversion puppet-administration ssh iptables drupal domain-migration mail-server-implementation openvz virtualization redmine amazon-ec2 amazon-web-services amazon-s3 rackspace-cloudservers virtuoso bash exim firewalls ssl centos ubuntu security email-deliverability-consulting mailenable ffmpeg atlassian-jira python rhel 00 more less
    • $70.00 HOURLY RATE
    • 5.0
    • 1810 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Senior Systems & Network Engineer

    With over 15 years of experience in the IT field, having worked at some of the most demanding environments as a Senior Unix System administrator (FreeBSD/Linux) and a Security expert. I specialize in complex ISP based *nix installations, corporate … more

    With over 15 years of experience in the IT field, having worked at some of the most demanding environments as a Senior Unix System administrator (FreeBSD/Linux) and a Security expert. I specialize in complex ISP based *nix installations, corporate Mail servers, large high traffic Web servers, Database servers and large ZFS based storage solutions. I have extensive knowledge in Virtualization technology. I have being involved with various types of Cloud solutions especially with OpenStack and CloudStack and KVM I like to deliver fast results with great quality and I never overcharge my clients.  less

    freebsd security unix-system-administration vpn linux-system-administration centos rhel solaris-administration firewalls mail-server-implementation apache-administration amazon-ec2 virtualization mysql 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 542 HOURS
    • GREECE
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 10 TESTS
  • IT Engineer

    Operating system: Linux (Debian,Ubuntu,Centos,SUSE,RedHat) – DNS (BIND9), DHCP, SAMBA, NFS, FTP, IMAP, Zabbix, Squid-Poxy, VPN Mail Servers: Sendmail, Squirrelmail, Qmail. Web Servers: Apache Web Server, HTTPD Firewalls: IPTables, Internetblockingusing Squid. Unix: AIX AIX Oracle Oracle DBA: Manage … more

    Operating system: Linux (Debian,Ubuntu,Centos,SUSE,RedHat) – DNS (BIND9), DHCP, SAMBA, NFS, FTP, IMAP, Zabbix, Squid-Poxy, VPN Mail Servers: Sendmail, Squirrelmail, Qmail. Web Servers: Apache Web Server, HTTPD Firewalls: IPTables, Internetblockingusing Squid. Unix: AIX AIX Oracle Oracle DBA: Manage and support the 145+ Oracle databases. Managing table spaces, data files, redo logs, tables and its segments. Maintaining data integrity also managing profiles, resources and password security. Managing Users, Privileges and Roles. Install Oracle software and patches. Upgrading the 9i databases to 10g-11-12c including data guard. -Upgrading the Database from lower version to higher version. -Write script to monitor the database with shell and PL, SQL code or SQL PL, SQL code such as procedure, function, and package. Cisco: Cisco CCNA Cisco VOIP: Call-Center CCM,UCCX Cisco integration: Cisco FlexPod - Cisco-NetApp-Hyper-V-Oracle Cisco UCS-Director  less

    oracle-database-administration linux-system-administration cisco-certified-network-associate-ccna vmware-administration cisco-voip network-administration bash-shell-scripting aix rhel 00 more less
    • $18.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Unix/Linux System Administrator

    Certificate Advanced English (CAE) by Cambridge SSCNA - Sun Solaris Certified Network Administrator SSCSA – Sun Solaris Certified System Administrator ITILv2 - Foundation Certificate in IT Service Management Knowledge OS: Linux (Red Hat, CentOS, Fedora, Debian, Ubuntu), Unix (Sun Solaris (9,10,11 … more

    Certificate Advanced English (CAE) by Cambridge SSCNA - Sun Solaris Certified Network Administrator SSCSA – Sun Solaris Certified System Administrator ITILv2 - Foundation Certificate in IT Service Management Knowledge OS: Linux (Red Hat, CentOS, Fedora, Debian, Ubuntu), Unix (Sun Solaris (9,10,11). Web Server: Apache HTTP Server, MS IIS. Application Server: Apache Tomcat, JBoss, Weblogic, OAS. Virtualization: VMWare 4/5, Oracle VM, Oracle VirtualBox. Clustering: Sun Cluster, Heartbeat Linux HA, JBoss Cluster, Apache Tomcat Cluster, Oracle Clusterware, RHCS. Monitoring: Nagios (Centreon), Cacti. Storage: Hitachi USP VM, Hitachi HUS, NetApp FAS-2050. Networking: TCP/IP, CISCO (ASDM), BlackDiamond (ExtremeWare), Firewall-1, Fortigate. Software: BIND, LDAP.  less

    rhel solaris-administration clustering apache-tomcat apache-administration vmware-administration nagios network-monitoring jboss load-balancing 00 more less
    • $10.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • SPAIN
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 0 TESTS
  • UNIX Systems Expert

    I have 20 years experience supporting complex production environments. I have excellent planning, communication, documentation, and training skills. I am self-directed with a strong work ethic and have extensive experience working in multinational environments. I have a broad background in … more

    I have 20 years experience supporting complex production environments. I have excellent planning, communication, documentation, and training skills. I am self-directed with a strong work ethic and have extensive experience working in multinational environments. I have a broad background in systems design and engineering, data center migrations, supporting and troubleshooting network services and applications, automating administrative tasks with scripting languages, and high availability environments. Key areas of expertise are Solaris (SPARC and x86), Solaris Zones and ZFS, Veritas Cluster Server, Red Hat and other Linux variants, storage volume management (VxVM, SVM, LVM). I am always looking for interesting projects.  less

    linux-system-administration solaris-administration rhel unix-shell perl aix html vmware-esx 00 more less
    • $60.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
  • Esteban Hernandez

    General Overview Linux Administrator with 5 years experience I am seasoned enough to know to acknowledge when I do not know something, or do not have the answer. There is never “one way” to do something, and no matter how … more

    General Overview Linux Administrator with 5 years experience I am seasoned enough to know to acknowledge when I do not know something, or do not have the answer. There is never “one way” to do something, and no matter how a problem is solved, there is always a better solution. Enjoy challenges and learning. I will not charge for learning general technologies that have application beyond a contracted project. I believe in the power of the web. I believe in the power of cloud computing, and SaaS. Willing to do oncall 24x7 immediate availability. Experience Cloud Services: Amazon Web Services EC2 Elastic IP Console Manager I have recently completed a number of production server deployments to Amazon Web Service (AWS). Each migration included building a new AMI as well as exports/imports of production data. SVN migration to AWS (centOS) dotProject migration to AWS (centOS) Bugzilla migration to AWS Linux (Centos, Ubuntu, Solaris, Suse, Red Hat) Worked for software development company for 4 years maintaining and deploying a wide variety of systems and applications including: LAMP, Bind DNS, PHP, apache, mysql, LDAP, Nagios, Cacti, fortigate firewalls, Joomla, wordpress, Plesk, Jboss4, Tomcat, Oracle, PXE Installs, Vmware, Virtual Box, red hat spacewalk, Bacula, Oracle and Mysql migrations, shell scripting and general sys admin work maintaining and monitoring the data center with over a 100 servers. HP (Technical Account Manager): 1 year experience handling Level 3 linux cases with US based customers, main point of contact between HP and the clients communicating via Email, phone or video chat, helping them resolve the cases from beginning to end engaging engineers from 3rd party software if required and keeping constant communication between the parties.  less

    centos ubuntu apache-administration php mysql jboss bugzilla amazon-web-services apache-tomcat amazon-ec2 wordpress sendmail home-automation rhel 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 71 HOURS
    • COSTA RICA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Linux system administrator

    I have great experience in * Linux maintenance (RHEL, Debian, Ubuntu) * Virtualization: (Vmware, Openvz, Virtuozzo, Xen, KVM), * Cloud hosting (Amazon EC2, AWS, S3), * Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), * Web servers (apache, nginx … more

    I have great experience in * Linux maintenance (RHEL, Debian, Ubuntu) * Virtualization: (Vmware, Openvz, Virtuozzo, Xen, KVM), * Cloud hosting (Amazon EC2, AWS, S3), * Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), * Web servers (apache, nginx, lighttpd, tomcat), * 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), * Hosting panels (Cpanel/WHM, Plesk, Directadmin). Java, J2EE, Maven, JUnit(DTDUnit, JMock, StrutsTestCase, DBUnit), apache commons, SQL (pl-sql/MySQL/ORACLE/MS SQL), HTML, JS, AJAX, CSS, Spring, Struts, Tiles, ORM/Hibernate, XML, XSLT, Jasper, Ant, JMeter  less

    linux-system-administration lamp-administration mail-server-implementation network-administration mysql apache-administration virtualization amazon-ec2 amazon-web-services amazon-s3 unix-shell nagios bash openvpn security squid subversion iptables dhcp exim centos plesk ubuntu cpanel whm nginx postfix rhel 00 more less
    • $27.78 HOURLY RATE
    • 4.8
    • 1304 HOURS
    • BELARUS
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 11 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Network and System Adminstartor (RHEL/CentOS Linux, Debian/Ubuntu)

    Personal Data Born date: 19 June 1976: 1a quarter, 2 building, 52 apartment, Charentsavan, Kotayq region, Armenia, 378562 Phone: (+37493)190611 E-mail : mkhitar@gmail.com Education: June 2002. Have completed PhD Thesis at Yerevan Physics Institute and have degree of … more

    Personal Data Born date: 19 June 1976: 1a quarter, 2 building, 52 apartment, Charentsavan, Kotayq region, Armenia, 378562 Phone: (+37493)190611 E-mail : mkhitar@gmail.com Education: June 2002. Have completed PhD Thesis at Yerevan Physics Institute and have degree of Doctor of Physics. Oct.1998. oct.2001. PhD student of Theoretical Physics Department at Yerevan Physics Institute. Sept.1993. June 1998Ã. Yerevan State University, Theoretical Physics Department Scientific workshops: 15.08.2002-21.08.2002 UNESCO workshop: “Integrablility in QFT and Quantum Statistics” (Tbilisi, Georgia) 02.06.2003 - 10.06.2003 Summer school on mathematics in string and field theory at ICTP (Trieste, Italy) Work experience: December 13 2010 – to present Head of IT Administrators Group Network and system administrator Linux (CentOS) an d Windows 2008 Based corporate network ( Active Directory, Gateway, VPN server (ipsec from Linux to Cissco, Linux-Linux via ipsec and pptp), Apache, MySQL Database Administration, Mail, FTP and SFT Servers, Linux based SMS Gatway (kannel), basics of traffic shaping, Proxy Server ( Squid, Kerio, Traffic Inspector) iptables ). ACRA Credit Reporting Bureau October 2001 – to present Scientific researcher: Yerevan Physics Institute, Theoretical Physics Department February 2010 – June 2010: Network and System Administrator, Technical Support for billing system customers “Zang Telecom” LLC Monitoring corporate network (Windows Active Directory, company mail server, proxy server, DNS server (FreeBSD based). Network containing amount 10 computers, mail server, NAT (hardware and sofware based realesation of NAT, Cisco routers and smart switchs), hardware and software support. March 2009 – February 2010 Network and system Administrator Georisk LTD and IGS NSA RA Monitoring corporate network (Windows Active Directory, company mail server, proxy server, DNS server, FreeBSD7.0 based proxy and DNS server ). Purchase hardware for company, do technical support for company employers. Network containing amount 80 computers, DNS, mail and Proxy servers, NAT, IT security, hardware and software support. FreeBSD 7.0 based gateway. 03.05.07 - 01.11.2007 Converse Bank CJSC Charentsavan branch as loan officer 01.12.06 - 01.05.2007 "AMC" LTD Administrator of the FreeBSD 4.0 based web hosting server (Appache) 15.05.2006-15.09.2006 “Ponte Solutions” LTD as physicist researcher (in the cool plasma physics area associated with plasma etching and plasma chemistry questions) 12.2004 - 06.2005 Network Administrator (on SuSE 9.1 Linux machine) at Aghayants ev. Word. LTD 2000-2001 Leading specialist at the Software Provision Department at Emergency Management Administration at Government of Republic of Armenia Language Armenian and Russian (fluent) English (technical) Computer experience: MS Windows 2000,XP,7,8 MS Office 2000/XP/2007, AS-Bank 3.0, MS Windows 2000, 2003, 2008, 2012 Servers (basics of Active Directory), MS Office XP/2003,2007 Linux (Red Hat 7.3, 8.0, 9.0, Redhat EL 4,5,6 Fedora Core 4-18 CentOS 5.x,6.x (advance), FreeBSD 4.5, 5.1, 6.0,7.0,7.2,7.3,8.0, Ubuntu/Debian), TCP/IP protocols, basics of programming with C++, (MS Visual Studio 6, 2005, 2008, Borland C++ Builder 6, C Builder X), knowledge of Linux/Unix servers (Squid, DNS, SSH servers, Apache, PostFix Sendmail, PF, Linux SHELL scripting, iptables, iproute2, tc, load balansing), wireless network, VoIP technlogicts and equipments, HPEM (Hybrid plasma equipment model), MCFP (Monte-Carlo feature profile model), PCMC (Plasma chemistry Monte-Carlo Simulation); Basic principles of CMOS designing. Scientific publications: 1 D. Arnaudon, D. Karakhanyan, M. Mirumyan, A. Sedrakyan and P. Sorba J.Phys. A: Math. Gen. 35 (2002) 2353-2359. 2 J. Ambjorn, D. Karakhanyan, M. Mirumyan and A. Sedrakyan Nucl. Phys. B 599 (2001) 547-560. 3. М. Мирумян "Модель Уймина-Лая-Сазерлэнда спина 3/2 в терминах фермионных операиоров рождения и уничтожения "Известия НАН Армении т.37, 4 (2002). 4. М. Мирумян «Фермионная модель Уймина-Лая-Сазерлэнда спина 1» Препринт ЕрФИ 1576(1) 2002. 5. D. Karakhanyan, R. Kirschner and M. Mirumyan Nucl.Phys. B636 (2002) 529-548; nlin.SI/0111032. 6. D. Arnaudon, D. Karakhanyan, M. Mirumyan, A. Sedrakyan, P. Sorba J.Phys. A35 (2002) 2353-2360.  less

    nagios rhel centos apache-administration iptables fedora lamp-administration ubuntu mysql ipsec mikrotik-routeros vpn 00 more less
    • $16.67 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • ARMENIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • System administrator (Linux/Unix)

    OS: Linux: RHEL/Fedora/CentOS, Debian/Ubuntu FreeBSD 6.x, 7.x, 8x Software: Apache, nginx, Squid, dhcpd, Bind, Unbound, OpenLDAP, OpenVPN, mpd, pf, iptables, Postfix, Dovecot, Samba, pure-fptd, vsftpd, Subversion, Puppet, LVS (ldirecord), Heartbeat, Pacemaker/Corosync, Bacula, Zabbix, MySQL … more

    OS: Linux: RHEL/Fedora/CentOS, Debian/Ubuntu FreeBSD 6.x, 7.x, 8x Software: Apache, nginx, Squid, dhcpd, Bind, Unbound, OpenLDAP, OpenVPN, mpd, pf, iptables, Postfix, Dovecot, Samba, pure-fptd, vsftpd, Subversion, Puppet, LVS (ldirecord), Heartbeat, Pacemaker/Corosync, Bacula, Zabbix, MySQL, PostgreSQL, PgPool, KVM, OpenVZ, RabbitMQ Programming languages: Shell/Bash; Basic knowledge Perl, PHP, Ruby, SQL Package creation/maintanace: RPM, DEB  less

    linux-system-administration nginx apache-administration mysql puppet-administration rhel openvpn iptables postfix zabbix openvz kvm-virtualization bash-shell-scripting clustering virtualization 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 2 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Senior System Administrator

    One of TOP10 freelance system administrators in Russia: https://www.free-lance.ru/users/psaux/opinions/ Highly skilled system administration expert with more than 10 years of professional background. Experience in hosting companies, software development companies, government sector. Good in firewalls … more

    One of TOP10 freelance system administrators in Russia: https://www.free-lance.ru/users/psaux/opinions/ Highly skilled system administration expert with more than 10 years of professional background. Experience in hosting companies, software development companies, government sector. Good in firewalls, IDSes, white hat and black hat security testing, DDOS protection. Providing 24x7 uptime service. My target is to achieve BEST PERFORMANCE of servers with a decent SECURITY level. My motto is: "best system administrator work is when you don't need him in the future".  less

    linux-system-administration freebsd openbsd cisco-asa apache-administration nginx mysql security network-security virtualization vpn apache-tomcat awk bash cpanel exim firewalls iis iptables isa-server jquery ldap mail-server-implementation microsoft-exchange-server microsoft-hyper-v network-administration oracle-database performance-tuning perl pfsense plesk php postfix postgresql python redmine rhel ruby ruby-on-rails sendmail snort squid sql subversion ubuntu varnish-cache vmware-esx wowza-media-server xhtml zabbix 00 more less
    • $22.22 HOURLY RATE
    • 4.7
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
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