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Upwork Red Hat Administration Jobs Completed Quarterly

On average, 6 Red Hat Administration projects are completed every quarter on Upwork.

6

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Time needed to complete a Red Hat Administration project on Upwork.

Average Red Hat Administration Freelancer Feedback Score

Red Hat Administration Upwork freelancers typically receive a client rating of 4.69.

4.69
Last updated: September 1, 2015

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  1. Tigran Budaghyan

    Tigran Budaghyan

    Linux System Engineer, Politehnica University of Bucharest

    Armenia - Tests: 15

    Linux System Administrator System engineer Network administrator Computer security Database administration IT Consulting Operating Systems: Linux (Debian/Ubuntu, CentOS/RHEL), Windows, Windows Server, Cisco IOS, Cisco ASA, Fortigate Web servers: Apache, Nginx Databases: MySQL, MsSQL, Oracle, MS Access Mail servers: Postfix, Exim, Sendmail, Dovecot, ClamAV, SpamAssassin Networking: TCP/IP, NAT, VPN, DHCP, Firewall, Routing, iptables, FTP, SSH, Active Directory, Domain Controller Virtualization: xen, kvm, virtualbox Scripting: bash/sh, vbs Backup: rsync Monitoring: Munin General Computer Skills: Microsoft Office (Word, Excel, PowerPoint)

    $15.00 /hr
    1,074 hours
    5.00
  2. Rodrigo Mantoani

    Rodrigo Mantoani

    Senior UNIX/ Linux/Storage/VmWare Administrator

    Brazil - Tests: 2

    I have 10+ years of experience on Linux / Unix System Administration. Some of my experience listed below. Experience: - Administration and Support on AIX, Solaris, HP-UX and Linux; - High Availability (MC/ServiceGuard, HACMP, RedHat Cluster Suite and Linux HA); - Clustered File Systems (GPFS, GFS and OCFS2); - Volume Management (LVM, LVM2, VxVM); - ESXi/ESX Certified Consultant (vCenter, P2V) - Performance and Tunning; - Security on Unix; - Perl, C, and Shell Script programming; - IBM High End Servers (P5, P6 and POWER7) - Virtualization (VIOS,LPAR,Micro-Partitions,DLPAR,etc); - NIM environments; - Datacenter migrations; - Disaster Recovery experience; - Networking (TCP/IP) and Internet Services; - Troubleshooting of hardware and software complex problems; - Storage Administration - EMC, NetApp Specialties:Unix, Linux, AIX, Virtualization, Clustering, IBM Power Platform, Infrastructure Architecture

    $22.22 /hr
    3,433 hours
    3.85
  3. 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
    1,018 hours
    4.98
  4. Shaukat N. Agency Contractor

    Odesk ❶ Consultant | Network/System Admin | Database | Cloud Computing

    Pakistan - Tests: 17 - Portfolio: 8

    To start with, my background, qualifications and work experience in networking, systems engineering and security appear to be well suited to your specific requirements. I hold a Masters Degree in computing with specialization in Network Security and Databases along with that I hold certifications ranging from "MCSE-MCITP" to "RHEL" and from "CCNA" to "Juniper". I am confident that I can make a significant contribution to your company, specifically by providing excellent technical services and support to your company and clients. My achievements range from setting up and installing top-notch network solutions for various companies as a consultant to providing support for WINDOWS, UNIX based hardware/ software solutions. Further my background includes over 5+ years of Systems and Network Administration activities across a number of Offline and Online Projects along with reputed organizations. I have had extensive VMware and VCenter administration experience migrating virtual machines using both Physical to Virtual (P2V) and Virtual to Virtual (V2) strategies. This included a project team that covered over 250 migrations over an 18 month period. I have also supported and managed a large high availability Citrix environment and a high availability Microsoft SQL server 2008 cluster. In previous positions I had significant exposure to Microsoft Active Directory and LDAP environments as well as some virtualization experience using VMware and Cisco hardware along with Linux Upfront. The Cisco virtualization included administration of the Nexus 1000V virtual switches.

    Associated with: Destra Soft, CyberPak Technologies

    $20.00 /hr
    4,164 hours
    4.97
  5. Andrew O.

    Andrew O.

    System Administrator/AWS Administrator/Architect/IT Security Expert

    Russia - Tests: 8

    Security-driven information security Architect/Professional with expertise in directing all aspects of highly technical multimillion dollar projects. With more than 7 years of expertise in a secure system implementation my skills oriented to accomplish tasks with the best security practices and rules. I am effective in defining breakthrough technology options based on organizational standards, security policy and strategic needs of the organization. 1. OS Administration: - Unix-like expert - RedHat/CentOS/Fedora; Debian/Ubuntu; Linux embedded etc. Linux security: fw, ids, integrity, encryption, SElinux etc; security hardening according best practices; software and tools, needed for enumeration, penetration testing and monitoring of corporate security regulations. Experienced in troubleshooting. - MS Windows expert - XP,7,8,Server 2003/2008/2012 - AD DS, AD CS, APP server, IIS, DNS, DHCP, Terminal Services, Print Services, File Services, Hyper-V. Windows security and performance. Experienced in troubleshooting. 2. Database administration: - Oracle 11g, MySQL, MS SQL. Good knowledge of SQL. 3. Cloud Infrastructure: - VMware Vsphere, ESX, ESXi; Rackspace, Amazon AWS expert. - Knowledge of servers hardware and desktops. 4. Information security software and hardware: - StoneGate FW/VPN, StoneGate IPS, StoneGate VPN/SSL. - Checkpoint FW/VPN, Checkpoint IDS/IPS. - Imperva WAF, Imperva DBS. - Websense WSG, Websense WES (Email Security). - Bluecoat SG+AV. - Symantec EP, Mcafee ePolicy, Kaspersky and others. - Cisco switches and routers (CCNA+p level). - Vyatta FW/VPN. - Splunk Enterprise, OSSEC, Nagios, MRTG, device lock and etc 5. Programming: - Python, Bash shell scripting, PHP. Windows batch scripting. Good knowledge of regular expressions. 6. PenTest ing (penetration testing, vulnerability assessment) and diagnosis. - knowledge and practical experience in vulnerability/misconfiguration assessments of network devices and server setups. Experienced with many audit and vulnerability scanners. Network and security troubleshooting. Manual assessments and code review. Static code analysis. - OWASP TOP 10 testing. Secure SDLC. 7. Standards: ISO/IEC 2700x, HIPAA, PCI DSS. CIS, SANS best practices. 8. Others: - MS Office (including MS Visio and MS Project). - Different CRMs, CMSs, helpdesk systems (Wordpress, Drupal, Jira, etc) Good knowledge in the areas: cloud security and system hardening; network and security design; data leakage and covert channels prevention; secure systems development life-cycle, business continuity; risk assessment; social engineering; ddos and malware disease mitigation; spam and AV protection. Extensive experience in project implementation. Experience in scheduling, setting goals and objectives in the shortest possible time. Record keeping. Tags, skills,technologies, services: linux, redhat, suse linux, debian, ubuntu, android, fedora, windows 8, windows 7, windows server 2003, windows server 2003 R2, windows server 2008, windows server 2008 R2, windows server 2012, windows server 2012 R2, active directory, group policy, terminal services, print services, certification authority, dns server, wins server, dhcp server, firewall, iptables, openvpn, strongswan, ipsec, ike, ikev1, ikev2, security association, network address translation, routing, cisco, cisco 2960, cisco 3750, crontab, aide, selinux, ossec, ids, ips, hids, intrusion detection system, intrusion prevention system, snort, nmap, vulnerability assessment, vulnerability scanning, penetration testing, pentesting, penetration test, owasp scanning, owasp assessment, secure SDLC, IIS, network file system, raid, hyper-v, mysql, postgre sql, VMware Vsphere, vmware esx, vshield, vmotion, rackspace, linode, godaddy, hetzner, burstnet, bluehost, leaseweb, aws, amazon web services, amazon ec2, amazon ebs, amazon rds, amazon vpc, amazon s3, amazon glacier, amazon route53, amazon elb, amazon elastic load balancer, amazon cloudwatch, amazon auto scaling, amazon workspaces, amazon efs, amazon cloudfront, amazon elastic file system, amazon cloudtrail, amazon iam, amazon directory service, amazon trusted advisor, amazon sqs, amazon ses, amazon sns, stonegate, stonesoft, checkpoint, imperva, websense, bluecoat, symantec endpoint protection, mcafee, mcafee epolicy, Vyatta firewall, vyatta vpn, Kaspersky, splunk, nagios, MRTG, bash shell scripting, ssl, tls, apache, haproxy, nginx, compliance, pci dss, saq d, saq d v3, cpanel, whmcs, whm, migration, replication, rsync, tcpdump, wireshark, stp, rstp, eigrp, ospf, nmap, kali linux, white hacking, backtrack, metasploit, whitehat, ethical hacking, certification, ceh, ccna, ccnp, oscp, security hardening, cis, sans, CISSP, google cloud, microsoft azure, google compute engine, l2tp, pptp, sstp, softether offensive security, owasp, burpsuite, sqlmap, static code analysis, code review, network planning, dmz, failover, load balancing, clustering, ddos mitigation, backup, data restore, monitoring, antivirus.

    $33.63 /hr
    1,572 hours
    4.65
  6. Sergey S.

    Sergey S.

    11+ years experience in Linux/OpenSource/Networks/Security

    Russia - Tests: 7

    Expert in Linux, proficient in BSD, Windows, OS X Red Hat Certified Engineer (RHCE) System and software configuration, installation, optimization System and network administration and security Performance, metrics and monitoring Programming in perl, php, c, shell Packaging rpm and deb, Linux kernel customization Linux Live CD & Live USB creation Linux distributions customization And more...

    $22.22 /hr
    1,468 hours
    4.97
  7. Alex G.

    Alex G.

    PHP, complex algorithms and big data processing guru, C# developer

    Poland - Tests: 8 - Portfolio: 6

    Senior PHP developer, high-load projects. 10+ years of PHP development, team lead experience. 7 years of C# back-end applications development. Working with custom peripheral hardware. Thread-safe and high-load applications. 3 years of C development for MCUs (Atmel controllers, Arduino, etc), custom peripherals, basic electronics and electrics skills. Guru in large data sets processing algorithms and different complex data structures (trees, graphs, etc.)

    $40.00 /hr
    1,992 hours
    5.00
  8. Oleksandr N.

    Oleksandr N.

    Senior System Administrator, Migration and Security L3 engineer, SSD

    Ukraine - Tests: 20 - Portfolio: 16

    YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY Specialties: Information Technology / Internet / IT Division / Computer security/ Internet Services / System Administration/ Webmaster Support / Web Analysis/ SEO / SEM / Internet Marketing Web hosting services (SSD hosting solutions) EXPERIENCE: d(-_-)b Linux/Windows system administrator, Operations team EuroVPS/WebDomSolutions January 2012 - May 2013 Greece, Athens Responsibilities: - Tickets; - System administration and monitoring. Theoretical and practical skills: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, OpenVZ, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS, redmine; - Control panels: Plesk, WHM Cpanel. - Database Administration: SQL Server, MySQL, MariaDB ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <( -'.'- )> freelancer SEO freelance October 2010 - March 2012 (1 years 6 months) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ o(^_^)o System Administrator / Techsupport Webintellects/Webhostgian/Jumpline/Webdomsolutions November 2010 - March 2012 (1 year 5 months) US, Ohio Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Operating Systems: * RedHat/CentOS,Fedora * Windows server 2003/2008 * VPS setup and configuration (Parallels Virtuozzo Containers); Advanced theoretical and practical skills in such areas: - Operating Systems: RedHat/CentOS/Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ b(^_^)d Internet Marketing Specialist || Web Analyst DCoM Soft, Inc. December 2009 – August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics - Information architecture and Web site content planning - Research of partners - Internet Market Research - Research Usability Design - Online promotion of company's web-based products Skills: - Search Engine Optimisation (SEO) - Paid online Marketing / Pay per Click Management (PPC) - SEO Copywriting/Editing - Social Media Optimization and Marketing (SMO/SMM) - Experience running USA-targeted social Marketing - Writing press releases - Social networking (Twitter, Facebook, Google follow etc) - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \(^_^)/ Customer Relations Representative || Advanced Technical Agent Ecommerce, Inc. May 2007 – October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Basic theoretical and practical skills in such areas: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3).

    $32.88 /hr
    1,442 hours
    5.00
  9. Vadim Arseniuk

    Vadim Arseniuk Agency Contractor

    Sr Windows and Linux Systems Admininstrator \ Cloud Engineer

    Ukraine - Tests: 3 - Portfolio: 1

    I’m a full time freelancer working in system administration with over 11 years of experience in Linux (Unix) and Windows. 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.

    Associated with: AiroHost

    $28.89 /hr
    1,591 hours
    4.97