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Upwork Red Hat Administration Jobs Completed Quarterly

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

5

Time to Complete Upwork Red Hat Administration Jobs

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 4.73.

4.73
Last updated: July 1, 2015

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  1. Andrei Volkov

    Andrei Volkov Agency Contractor

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

    Belarus - Last active: 1 day 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
    990 hours
    4.98
  2. 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
  3. Mariel therese S.

    Mariel therese S. Agency Contractor

    Technical Consultant

    Philippines - Last active: 6 months ago - Tests: 11 - Portfolio: 2

    Started out as a web developer, now a (certified) database and system administrator. I have over 3 years of experience with working, as a consultant, with companies from different industries (manufacturing, financial, telecommunications). Technologies I am familiar with include installation, configuration, and administration of Oracle Databases (with RAC, DataGuard, partitioning and other database-related products and features) and various Linux systems. Recently, I have started working with Oracle engineered systems as well. My development experience allows me to see creative ways of seeking solutions to various issues I encountered by me or my clients. This is something I have proven to be quite valuable in this trade. I am looking for opportunities that will expand my knowledge with the technologies I have been working with and in turn, improve current systems for you or your company. That being said, I amenable to looking into other systems/technologies I may not be well-versed with in order to complete client requirements properly.

    Associated with: Mondex Professionals Agency, Streusel Inc.

    $25.00 /hr
    535 hours
    4.96
  4. Saifur Rahman Khan

    Saifur Rahman Khan Agency Contractor

    Saifur, Your Solution for Data analyzing, IT Sec., Networking pentest

    Bangladesh - Last active: 1 day ago - Tests: 6 - Portfolio: 6

    !!!!! 2500+ Hours Experience !!!! FEEL COMFORT WITH LONG TERM PROJECT !!!! To find a job where by dedication, hard work and the ability to acquire new skills. Seeking opportunities to utilize my skills in Data analyzing, Online Advertising, Networking, Security and Web researching. I am patient, pay attention to detail, work accurately and can took instruction very well, while displaying initiative. My ultimate target is to do quality job and build good relationship with employers. I have a great experience of Data transcribing and directory collection.I am a hard working contractor, very responsible to employers and very sincere about time and work. Have experience on the field of Online Advertising (DG/MediaMind, Adap TV), Networking, IT Security(Defense Intelligene, Canada & data edge ltd, Bangladesh), Web research, Word, Excel, SEO, Internet Marketing, Face Book, Administrative Works etc. Want to build a good career in Upwork.

    Associated with: Faridpur IT Company Limited

    $5.56 /hr
    2,540 hours
    4.76
  5. Moztaba A.

    Moztaba A.

    Linux System Administrator

    Bangladesh - Last active: 1 month ago - Tests: 4

    I'm a Linux System Administrator for over 5+ years now. I am familiar with all kind of problems and solutions related to Linux servers. I can install, troubleshoot all kind of control panel's out there (Ex: cPanel, Kloxo, ISPCONFIG). I am working with WHM/cPanel for over 2 years now. I can troubleshoot, install, secure & monitor Linux servers with any kind of Control panel installed on it. You and I will be a great pair of professional workers to accomplish anything we want. So, what are you waiting for. Just get on with it and hire me. I assure you, you won't be disappointed. Thanks with regards

    $20.00 /hr
    2 hours
    5.00
  6. Sunil Vyas

    Sunil Vyas

    Network analysis internet Research ,Network Penetration testing

    India - Last active: 5 months ago - Tests: 7

    B.tech Information Technology. MCSA Windows server 2008 CCNA R&S certified . MCP windows hyper-Technology 6-10 months working experience on Cisco routers & switches , Red Hat Enterprise Linux 6.0 ,6.5 (DNS,DHCP ,FTP ,HTTP,YUM,SSH,TELNET ) Windows server 2008,2012 . very good knowledge of C language and TCP/IP protocol suites. Shell Programming Basic knowledge of Java,SQL and C++.

    $3.33 /hr
    0 hours
    4.17