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

5

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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 4.71.

4.71
Last updated: August 1, 2015

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  1. 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
    1,009 hours
    4.98
  2. Michael T.

    Michael T.

    System Administrator

    Russia - Tests: 15

    I have 10 years of experience in system administration. I took part in a variety of projects, configuring and supporting servers and services based on Red Hat/RHEL/Centos, Debian, FreeBSD, and Solaris. For the last 3 years and at the present time, I have been occupied with projects based on VmWare ESXi hypervisor and Windows Server 2008 R2, and implementation of information security policies. I also have a brief experience in Oracle and MySQL administration. Currently, I am seeking for Unix and Linux administration tasks.

    $30.00 /hr
    564 hours
    5.00
  3. Ahmed N.

    Ahmed N.

    Senior Linux Admin, Cpanel, RedHat, Ubuntu, Perl, BASH, Virtuozzo

    United Arab Emirates - Tests: 10 - Portfolio: 2

    Over the last 12 years I have developed a wide range of skills and my objective is to leverage my significant technical skills in a position as Unix/Linux Administrator I have extensive experience in installing/configuring different software including but not limited to Apache, PHP, MySQL, PostgreSQL, exim, postfix, dovecot, BIND, POP/IMAP, SMTP, SSL, SSH, proFTPd, pureFTPd, iptables (APF/CSF), Kayako, WHMCS, ClientEXEC,OpenVZ,Virtuzzo,Nagios.

    $18.89 /hr
    338 hours
    5.00
  4. Sree panchajanyam D.

    Sree panchajanyam D.

    Software Architect - Java, Scala,Middleware,NoSQL,CI,Openstack, Docker

    India - Tests: 6

    I am a Software Architect with 8 years in various system proprietary and open source technologies. I am an expert in Middleware, Messaging and NoSQL systems, with proven experience in design and development of highly available and scalable systems based on Kafka, MongoDB, Apache ActiveMQ and Apache Camel I have expertise in installation of openstack(juno) and integrating it with docker - CENTOS 7 I have proven design and development expertise in the below mentioned technologies. Programming Languages : Java, Scala,Ruby (intermediate). I have expert knowledge in Multi-Threading, generics and Collections in java. Unit Testing : JUnit Middleware: FUSE ESB, Apache Camel, webMethods, Spring Integration, WPS BPM Suites : WebMethods BPM suite (expert), Basic knowledge of bunch of other leading BPM Suites Messaging Systems: Apache Kafka, ActiveMQ, Fuse MQ, IBM MQ(5.3, 6.0, 7.x), webMethods Broker, TIBCO EMS. Webservice Frameworks: Apache CXF, spring webservices. OSGI Environment : Apache Karaf. NoSQL : MongoDB, Apache Cassandra, Riak, Couchbase, CouchDB. Continuous Delivery : Jenkins, Chef Linux : Expert in Centos/ RHEL 6.5 and LXC. Design Experience : OOAD, SOA, EIP. Protocols : JMS, HTTP, TCP, AMQP, STOMP (beginner). Source Code control: SVN, Git Build Tool : ant, maven, gradle Performance testing : JMeter

    $33.33 /hr
    2 hours
    5.00
  5. Mohammed Nasimuddin

    Mohammed Nasimuddin

    Linux Administrator

    India - Tests: 5 - Portfolio: 3

    I’m an independent consultant focused on: Linux and Open Source. Infrastructure development Worked mainly in the web-hosting area, my key accomplishments are listed below. I have more than 7 years of experience working with Linux and Open Source, providing solutions for small, medium and big companies. I have strong knowledge in Web server (Apache, Lighttpd, Nginx, PHP, Perl, Python..), Mail server (Sendmail, Qmail, Postfix, Zimbra...), DNS (Bind, Power DNS...), Firewall, Network, Database (MySQL, noSQL: couchbase...), load balancing (HaProxy, LVS..),web-hosting panels (CPanel, Plesk,DirectAdmin). However, my knowledge is not limited in these areas. My specialties are: - EC2 / Rackspace Cloud computing setup (incl. EC2/Rackspace API scripting) - Virtualization (KVM, Xen, OpenVZ/Virtuozzo) - Sites/Servers migration (Wordpress, CPanel, Plesk) - Shared file systems (nfs, drbd, ocfs2, gfs) - Server security (VPN, firewall, IDS) - Server performance optimization (Apache, Nginx, MySQL) - Email white-listing, spf, high load delivery, performance - Backup, shell scripts, etc. My core competency lies in complete end-end : + Setup Apache Tomcat ,PHP's Pear Package Manager ,Postgre SQL .... + Install Ruby on Rails on an Debian 7.0 (Wheezy) VPS using RVM + PHPMyAdmin MySQL database manager + Ioncube setup on LAMP ,LEMP , WAMP , MAMP + Setup Ruby 4 on Ubuntu 12.4 LTS + Install Rails, Apache, and MySQL on Ubuntu with Passenger + OpenEmm setup on CentOs 6.0 64bit + Administrate VPS and dedicated Server + Setup Sugar CRM and Zoho CRM workflow and modules. + Good experience with WordPress eCommerce site + Good skills with CMS and Joomla. + Proxmox Cluster setup and HA , VM Creation,update, Migration. + Sheepdog Storage cluster setup. + Media server setup with red5 , oflademo I reply to all emails and requests in a very prompt fashion and don't forget to update my clients about the progress before going off-line.

    $33.33 /hr
    9 hours
    5.00
  6. Hesham Hosney

    Hesham Hosney Agency Contractor

    UNIX/Linux Systems Professional

    Egypt - 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. Azam K.

    Azam K.

    Experienced in Linux & Systems Administration and Elastix Call Center

    Bangladesh - Tests: 3 - Portfolio: 1

    I have been working in a 'System and Networking' group to support servers in a mixed operating system environment for more than six years. My strengths are in installation, commission, operation and maintenance of Linux based servers and system administration. I deployed wide range of Linux servers, implemented hardening features, high availability for small to medium enterprises. I want to work in those expert areas so that I may utilize my core skills with utmost sincerity and honesty. I successfully implemented a scalable multi-branch phone/online based customer support service solution using off-the-shelf hardware and ASTERISK, Linux based the most popular open source IP-PBX sever, surprisingly at a very low cost. As part of this project, I also developed a web-based customer complaint management system integrated with ASTERISK that facilitates management to make intelligent business decision. This is a ticketing system for customer support having features of call recording, call escalation and monitoring. Moreover, I have deployed several Linux based (using Asterisk, AsteriskNOW, Elastix, FreePBX, Vicidial, GoAutodial and some mid-level wed developement) mini call center and customer support solution in home and abroad. I have some experience in web development and Smart Metering (AMR, AMI) System also. I developed the customer complaint management system using CodeIgniter PHP MVC framework & MySQL and integrated with Asterisk telephony engine. I have developed some Joomla based website also. I completed Master of Engineering in Computer Science and Engineering in 2013. I am a Red Hat Certified Engineer (RHCE) with expertise on Red Hat Enterprise Clustering and Storage Management (RH436) and completed Red Hat Server Hardening (RH413)and Red Hat Enterprise Deployment, Virtualization, and Systems Management (RH401) training. I passed Information Technology Engineer Exam (ITEE) in 2014 and successfully completed Level-1 Online Introductory Technical Training on Sangoma TDM Interface Cards also. I am seeking opportunities to work on Linux & Systems Administration and call center solution for startup companies and small businesses..

    $13.33 /hr
    65 hours
    5.00