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On average, 5 Red Hat Administration projects are completed every quarter on Upwork.

5

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Average Red Hat Administration Freelancer Feedback Score

Red Hat Administration Upwork freelancers typically receive a client rating of 4.71.

4.71
Last updated: August 1, 2015

Popular Red Hat Administration Searches

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  1. Mihai-George Cornateanu

    Mihai-George Cornateanu

    Senior Linux System Engineer

    United Kingdom - Last active: 5 months ago - Tests: 12 - Portfolio: 1

    Linux System Administrator. LAMP Administrator. Security expert - Senior Ethical Hacker. PCI Compliance expert. ✔ Apache ✔ PHP ✔ MySQL ✔ DNS ✔ FTP ✔ Samba ✔ Postfix / Qmail / Sendmail ✔ DomainKey / DKIM / SPF ✔ Courier / Dovecot (IMAP/POP) ✔ SpamAssassin / ClamAV Amavis ✔ Kernel Hardening & Securing ✔ IPTables ✔ Wordpress, Joomla, PHPBB, Drupal ✔ Bash scripting

    $30.00 /hr
    186 hours
    4.85
  2. Duminda Karunaratne

    Duminda Karunaratne

    System Administrator

    Sri Lanka - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    I am the member of the MIS team and covering all release managements and server operations. I currently handle ESXi and ESX server farm in Australia and USA. • Have experience installing, maintaining and troubleshooting VMWare servers.  ESXi and ESX Vsphere servers.  Installing, maintaining iSCSI software. (OpeanFiler / OPEN-E / HP LeftHand) • Have experience installing, maintaining and troubleshooting MS Windows Server 2008 and 2003.  Installing, maintaining and troubleshooting domain controller.  Have experience in Active Directory maintaining and troubleshooting.  Customizing Group Policies.  Scheduling Backups.  Domain Replications.  DFS Replications.  Installing, maintaining and troubleshooting IIS 7 and 6.  DHCP Server installation, maintaining. • Have experience installing, maintaining and troubleshooting MS Office SharePoint Server 2007 and 2010. • Have experience installing, maintaining and troubleshooting MS Exchange server 2010. • Have experience installing, maintaining and troubleshooting following software firewalls.  MS ISA Server 2006.  Untangle (Open Source)  SmoothWall (Open Source) • Have experience installing, maintaining and troubleshooting PLESK control panel and Cpanel. • Have experience installing, maintaining and troubleshooting UBUNTU/ CentOS / RedHat / SUSE Linux / Sun Solaris servers.  Installing Apache Server, Virtual hosting, Apache SSH configurations and Apache failover clustering.  Installing MySQL Server, MySQL data base replication and failover cluster.  Installing FileZilla FTP Server  Scheduling cron jobs.  ISC DHCP failover clustering. • Have experience installing Windows 7, Windows XP, UBUNTU, KUBUTU, and Fedora. • Have experience working with Amazon cloud computing and Soft Layer cloud computing. • Have experience in installing, maintaining and troubleshooting wireless network. • Can maintain and troubleshoot LAN environment. • Have experience installing MS SQL 2008 and 2005 servers. I’m maintaining daily backups in MS SQL servers and database management. • Have Experience installing and maintaining CISCO ASA 5505 Firewall, CISCO Routers and CISCO Switches.  Routing Protocol RIP, IGRP, RIP v2, EIGRP, OSPF  Creating Vlan  Nating  Creating VPN

    $16.67 /hr
    516 hours
    4.99
  3. Sergiy R.

    Sergiy R.

    Linux System Administrator

    Ukraine - Last active: 12 days ago - Tests: 9 - Portfolio: 1

    I am an experienced System Administrator with a wide range of skills, including Linux servers administration, LAMP stack setup, OpenVZ and KVM virtualization, configuring services, working with version control systems and writing system maintenance scripts. I have a hands-on experience with Linux, including Ubuntu, CentOS, Red Hat, Gentoo and Debian distributions. I am able to code in OCaml, C, C++, Ruby (including Ruby on Rails), Bash/Zsh and read Java, Python, Haskell, Perl and Common Lisp programs. My most important virtues are: extreme responsibility, easy communication and attention to details.

    $40.00 /hr
    467 hours
    5.00
  4. Andrei Volkov

    Andrei Volkov Agency Contractor

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

    Belarus - Last active: 18 hours ago - 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
    992 hours
    4.98
  5. Shaukat N. Agency Contractor

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

    Pakistan - Last active: 5 days ago - 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
    4,094 hours
    4.97
  6. Hesham Hosney

    Hesham Hosney Agency Contractor

    UNIX/Linux Systems Professional

    Egypt - Last active: 1 day ago - Tests: 8 - Portfolio: 10

    thanks for viewing my profile "Honesty and professionalism is my way to success" I'm communications and electronics engineer graduated from faculty of engineering Alexandria university. Diploma in software engineering from information technology institute in Egypt. Red Hat Certified Engineer CCNA Routing & Switching(200-120) strong knowledge in UNIX and Linux systems administration I wrote many automation,optimization,installation and Validation Bash Shell Scripting that provide Solutions on Linux Platform familiar with Networks and applications that runs on Linux/UNIX Platforms I have solid programming experience on System Programming and C under UNIX

    Associated with: itianyol33

    $22.22 /hr
    199 hours
    4.91
  7. Sarath S.

    Sarath S.

    Linux Webhosting System Administrator

    India - Last active: 8 days ago - Tests: 2 - Portfolio: 2

    Over the last 5 years, I've been working with a Web Hosting support company, where I had to handle cPanel/WHM, Direct admin, Plesk (basic windows hosting), Apache/Litespeed, MySQL, basic PHP, Exim, DNS(bind9) and many other applications and cloud servers . Has experience in setting cPanel based cloud Linux with all the server hardening’s and also have the basics of bash scripting. Have experience in both voice and ticket support system(WHMCS, OsTicket etc). Can handle tickets with least response time and with good technical resolution and customer satisfaction since I'm having another 1.5 years of exp in BPO voice support for a Multi National Company. I've experience and have configured LDAP, R1 soft backup for cPanel accounts, duplicity backups etc. I also have experience in setting up Linux servers, installing custom scripts, hardening the server etc. I also have knowledge in OpenVZ, xen and VMware virtualization. Has experience in configuring the said virtualizations. I'm an expert in Nagios monitoring and with various other monitoring tools. TECHNICAL DATA SUMMARY: -COMPLETE LINUX SERVER MAINTENANCE/TROUBLESHOOTING (RHEL, Centos, Debian, Ubuntu) -VIRTUALIZATION: (Vmware, Openvz, Virtuozzo, Xen, KVM, vserver) -CLOUD HOSTING (Amazon EC2, AWS, S3) -NETWORKING (dhcp,DNS:powerdns/bind/named)VPN: openvpn/pptp FIREWALL: 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) -MONITORING (zabbix, Nagios ) -HOSTING CONTROL PANELS (Cpanel/WHM, Plesk, Directadmin) -MIGRATIONS/TRANSFERS (Websites, Emails and Application migrations with zero or no downtime guaranteed) CUSTOMER/CLIENT GENERAL WORK NATURE SUMMARY: -Always available in case of emergency just a ring away(Has both Mobile and landline number). -Has setup multiple monitors in twinview mode which helps to multitask easily and helps in reducing the ticket response times. -Experience in BPO has improved my customer satisfaction skills. I always believe in the fact that a Customer is always the king. -Fast and reliable internet connection with a standby emergency WiFi network. -Two laptops(Ubuntu and Windows) and a desktop in case of emergency. -Flexible work hours and is ready to work on weekdays too. -Trustworthy and transparent work. -Will provide daily shift reports in a well formatted way. Sit back and relax while I handle your SERVERS!!!!!

    $7.77 /hr
    358 hours
    4.69
  8. Roman Voitenko

    Roman Voitenko

    linux/freebsd, high load solutions, scripting, amazon ec2

    Sweden - Last active: 08/07/2013 - Tests: 4 - Portfolio: 1

    My experience as system administrator is mostly focus on Linux. Skills include deploying, migrating and managing Linux systems, development of high-load redundant clusters, automating operational tasks using puppet, perl, shell scripting with attention to documentation, standardization, procedures and policies. I’m a perfectionist in work and in my life.

    $66.67 /hr
    725 hours
    5.00