CentOS Freelancers

Showing 47 freelancers

CentOS Freelancers

Showing 47 freelancers

  • Linux Administrator

    My specialty is providing IT support for web-based technology. I focus on linux server management for webservers (both WHM/cPanel managed and direct command line managed), Salesforce.com administration and technical support for websites based on Joomla and Wordpress content … more

    My specialty is providing IT support for web-based technology. I focus on linux server management for webservers (both WHM/cPanel managed and direct command line managed), Salesforce.com administration and technical support for websites based on Joomla and Wordpress content management systems. I offer discounted hourly rates for non-profits. Please contact me with a copy of your IRS determination letter for details.  less

    linux-system-administration redhat-administration centos ubuntu joomla wordpress css voip-administration cpanel whm 00 more less
    • $39.00 HOURLY RATE
    • 4.9
    • 1142 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 10 TESTS
    ASSOCIATED WITH:
  • System Administrator/Scripts Write/Cloud Expert/Security Consultant

    Hi there, I am a 30 years certified System Administrator you wish getting help from : I am an LPI(101 & 102),RHCE certified, Automation king!! I have rich experiences in a wide range of software and systems over the last … more

    Hi there, I am a 30 years certified System Administrator you wish getting help from : I am an LPI(101 & 102),RHCE certified, Automation king!! I have rich experiences in a wide range of software and systems over the last 15 years, the most notable skills are : 1-Linux System Administartion : I have installed, configured, repaired, and managed so many Linux systems (more than I can remember) since 2006. I started with Fedora, then centos and ubuntu. 2- Scripting (My Favorite!) : I do enjoy very much with scripting especially for automation purposes, and I am very experinced with it, on both linux (bash) and windows (autoit - batch). I can automate all the tasks even those that don't talk to the command line in windows. I made for example in past, a fully unattended Windows installation CDs that is fully customized to include all the software my customers need without asking single question ! and on Linux I use Bash scripting Language to handle almost every aspect of linux and I did wrote so many scripts for various tasks. 3- Hosting Services : I have installed and managed previously many control panels for hosting and administration, that includes Cpanel, Plesk, ISPconfig, Webmin, Usermin, AWS, DigitalOcean, rackspace, cloud providers and more ! and in addition to that I can run the hosting services directly myself with no need for a control panel. I managed standalone software like : Apache, MySQL Server, ws-ftpd, proftpd, lighttpd with fast cgi, thttpd, dovecot, postfix and other servers ! I can also build/manage any hosting services, including shared hosting, VPS and dedicated servers. 4- VPN Services: I have installed and configured many servers that provided VPN services, including PPTP and OpenVPN services. I have even created a custom control panel for the customers and link it with automation scripts I wrote to better help the client managing his customers. (see the following picture): http://img687.imageshack.us/i/screenshotrsl.png/ And besides I am the solo developer of vpnplatform (vpnplatform.org/team) ;) and my clients consider me the best VPN guy on odesk. 5- Figting Malware: I can get your windows box clean even from the hidden malware and spyware trojans. I can secure your box and keep it safe and protected. I have fought malware since 2001 achieving great results like : cleaning big networks from viruses and worms and keeping it up and running in hostile environments for months with almost no downtime ! Also, I've built an app I called (Automated Malware Wizard), that would backup clinets hard drives and then GUARANTEE the cleaning of them, then update their software to close any possible vulnarables. I can customize it to you to fit your needs (If you intend to run a malware-cleaning and maintainance firm/utility). 6-Networking : I've been an ISP CEO before, and delivered internet services for more than 200 local subscriber when I worked at Hamad ISP. 7- VOIP: I am familiar with Asterisk and Asterisk GUI Installations, from scratch to fully working installation ! 8-Virtualizaion : I am very good with VMware and VirtualBox, I used them for years as a combination with hosting services. 9-Managing Mailing lists : I can manage your Email lists and make it away from SPAM lists by playing fair and square, I managed lists before, some of them got thousands of subscribers, I can clean the list also of all invalid/outdated subscribes by catching all email bounces using (my experience was with phplist script). 10- PHP/MySQL : I can develop web pages using a mixture of several technologies including html/css/php/mysql/javascript. And Finally, I can perfectly read, write and talk English Language and you can contact me over email, sms or mobile ! I perfectly speak English Language. I am ready to move to your job location if needed. I respect my work and give it every effort I can while keeping job's secrets secured and not to be shared with any 3rd party. You may see my attached C.V. and my odesk profile at: https://www.odesk.com/users/~~9b6150fc1d75d477 Note: I can adjust my availability time to suite your needs. Best wishes Ahmad  less

    openvpn virtualization virus-removal technical-support network-administration ubuntu centos winautomation-scripting autoit asterisk bash security vpn arabic translation-english-arabic translation-arabic-english mail-server-implementation sendmail email-technical-support linux-system-administration computer-maintenance dns vmware-administration squid php mysql jquery css html java paypal-api network-security adobe-dreamweaver bash-shell-scripting wireless-security 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 1095 HOURS
    • PALESTINIAN TERRITORIES
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • System Administrator, SaaS Engineer

    Senior level System Administrator and experienced SaaS Engineer, I provide three types of development services to my customers: a. Custom tailored solutions, built to meet the client's needs and specifications b. Deployment of pre-existing software solutions and further development … more

    Senior level System Administrator and experienced SaaS Engineer, I provide three types of development services to my customers: a. Custom tailored solutions, built to meet the client's needs and specifications b. Deployment of pre-existing software solutions and further development and/or optimization. c. Migration solutions for clients wanting to switch platforms or hosting environments. I provide analysis and SaaS architectural design as well as core development of RESTful services. Moreover I am an expert in Apache and Nginx fine-tuning and administration. I can demonstrate vast experience in production-level deployment of Wowza, Red5 and Pseudostreaming video and audio streaming servers. Senior level of Database Administration and Design in MySQL and MariaDB. Excellent knowledge of AWS platform ( EC2, S3, RDS, Glacier. Cloudfont and lately DevOPS) Some of the technologies/frameworks I use: 1. PHP / Yii / CodeIgniter / CakePHP / Zend 2. Javascript / JQuery Library 3. Ruby on Rails 4. Perl 5. Python / Django 7. HTML/CSS 8. C++ / Qt 9. Web Services (REST / SOAP / WSDL) 10. XML / XSL / XSLT Database Engines: 1. MySQL v4+ (& MariaDB) 2. MSSQL 3. Oracle RDBMS 4. Postgres/SQL 5. noSQL Well-known APIs such as: Paypal API, Facebook, Twitter, Amazon API. Payment Provider APIs: Paypal, Paxum, Payoneer, Webmoney, Redpass, Neteller, Authorize.net, Stripe Special tools: FFMPEG, x264, libfaac, ImageMagick. --  less

    lamp-administration apache-administration mysql php python amazon-web-services linux-system-administration amazon-ec2 amazon-s3 rackspace-cloudservers redhat-administration centos memcached nginx varnish-cache puppet-administration penetration-testing javascript jquery mail-server-implementation dns svn git api-development video-streaming red5 wowza-media-server c++ ruby-on-rails yii-framework wordpress 00 more less
    • $39.00 HOURLY RATE
    • 5.0
    • 2493 HOURS
    • GREECE
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 10 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Linux Guru-Server Support/Server Specialist/Technology Consultant

    Over the last 6 years, I have worked on a wide range of Servers Operating System Administration and Configuration. My core competency lies in providing complete support of Server administration and User support, and I am seeking opportunities to provide … more

    Over the last 6 years, I have worked on a wide range of Servers Operating System Administration and Configuration. My core competency lies in providing complete support of Server administration and User support, and I am seeking opportunities to provide corporate support to utilize my skills and strength. I have good experience in the following Servers: Microsoft Windows Server 2000, 2003,2008 R2, Redhat Enterprise Linux, CENTOS 5.4, Fedora, Ubuntu, Oracle Enterprise Linux, OpenSUSE, OpenSolaris, MySQL, Microsoft SQL Server, etc SYSTEM ADMIN SKILLS (LINUX) - Install. Configure, Maintain Various Linux Destribution (Fedora, Redhat, Ubuntu, Ubuntu Server, CentOS, OpenSUSE. - Labtech working experience - ConnectWise working experience - VMware vSphere 4 / ESX 4 - VMware Virtual Datacenter configuration - VMware Expert. - SONICWALL Firewall Configuration - Administration Amazon EC2/S3 - ElasticFox Work experience - Plesk Server administration (Migration etc.) - Install and Configure IBM TSM Server 6.1 - Oracle E-business Suite Patching and Cloning - Backup and Restore Databases. - Install and COnfigure SSL certificates. - Managing and Administration of VPS servers. - Domain and Hosting Administration (Plesk, Cpanel, Webmin) - GamePanelX configuration (OpenSource Game Server Panel) - Install, Configure, Maintain MAC OS X. - Install, Configure, Maintain BIND Server - Install, Configure, Maintain DNS Server on windows server - Install, Configure, Maintain Webserver (Apache, IIS) - Install, Configure, Maintain FTP - Install, Configure, Maintain Mailservers (Exchange Server, Postfix, Dovecote, Sendmail, Qmail) - Install, Configure, Squid Server - Install, Configure, Maintain Linux based Firewall - Configure ISAPI Rewrite on II6 for User Friendly URL for SEO - Configure Rewrite mode on Apache Server. - Install, Configure, Maintain OpenLDAP. - Install, Configure, Maintain Active Directory. - Install, Configure, Maintain CMS. (Joomla, Wordpress) - Configure and Troubleshoot Pleask, Cpanel. - Configure and Troubleshoot IPTables. - Configure and Troubleshoot Samba server - Install, Configure and Maintain (MRTG, Cacti, PRTG) - Install and Configure Project management System - Deploy Helpdesk System. - Design Network Infrastructure. - Implement System and Network Security - Install, Configure and Maintain Antivirus Server (Trendmicro, Kaspersky) - Configure Bandwidth Splitting on Squid. - Implement and Design Virtualization (Hyper-V and Vmware) - LAMP Server Installation. - Ubuntu Kernel Panel Recovery - Amazon EC2 Instance Configuration - Backup and Restore Databases (SQL, MySQL) - SAN/RAID management - Open Source Firewall ADministration (pfSense, Zentyal/ebox, Endianfirewall) - SSL installation and configuration - Wordpress troubleshooting - CentOS VPS administration - Dedicate Server Management - WHM/Cpanel Administration - WHM/Plesk server security implementation - Domain Migration - Server Migration - IPtables Administration SYSTEM ADMIN SKILLS (MICROSOFT) - MCSE - MCSA (Preparation) - MCTIP (Preparation) - MS. SharePoint 2007, 2010 (Preparation) - MS. Exchange 2007, 2010 (Preparation) - SBS 2008 (Preparation) - MS SQL Administration - ISA 2004, 2006 and TMG (Preparation) - MICROSOFT PROJECTS -Deploy and Configure SBS 2003 -Deploy and configure SBS 2008 -Migrate SBS 2003 to SBS 2008 -Deploy and configure Active directory 2000, 2003 and 2008 -Migrate Active directory 2000 to 2003 and 2003 to 2008 -Deploy, Design and configure Exchange 2000, 2003, 2007 and 2010 -Migrate 2003 to 2003, 2003 to 2007, 2003 to 2010 and 2007 to 2010 (complete Migration) -Deploy, Design and configure SharePoint 2007 and 2010 - Migrate SharePoint 2007 to 2010 -Deploy, Design and configure ISA 2000, 2004, 2006 and TMG 2010 -Migrate ISA 2006 to TMG 2010 -Deploy and configure SQL 2000, 2005 and 2008 (Administration) -Deploy and configure WSUS server -Deploy and configure IISA 6 and IIS 7 -Deploy and configure Microsoft SCCM 2012 (on process) -Deploy and configure forefront Security antivirus 2010 -Deploy and configure LYCN 2010 SEO SKILL SEM/SEO Consultants, SEO Services, PPC, Friendly URL, keyword analysis and selection competitive site analysis keyword density analysis optimization of site content optimization of meta tags, page titles, and descriptions inbound and outbound link placement internal linking strategies site submission Website Design and Development. My MCP Virtual Business Card: https://www.mcpvirtualbusinesscard.com/VBCServer/DanishAhmed/interactivecard  less

    magento linux-system-administration windows-administration wordpress joomla windows-xp-administration rhce web-design website-development mail-server-implementation microsoft-outlook-development microsoft-hyper-v-server vmware-administration virtualization disaster-recovery oracle-database mysql apache-administration plesk cpanel whm security firewalls iptables dns dhcp project-management network-administration centos ubuntu fedora mac-os-app-development vmware-esx microsoft-exchange-server domain-migration activecollab data-backup network-security 00 more less
    • $30.00 HOURLY RATE
    • 4.8
    • 3043 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 18 PORTFOLIO ITEMS
    • 7 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Ruby on Rails developer

    Use Ruby for web development (6+ years, Ruby on Rails), command line tools/scripting. Do understand/use advanced Ruby features (metaprogramming, functional programming). Able to implement ordinary SQL based server side (MySQL, Postgres) as well as NoSQL based solutions (MongoDB … more

    Use Ruby for web development (6+ years, Ruby on Rails), command line tools/scripting. Do understand/use advanced Ruby features (metaprogramming, functional programming). Able to implement ordinary SQL based server side (MySQL, Postgres) as well as NoSQL based solutions (MongoDB) Use JavaScript/CoffeeScript/jQuery/Backbone.js for web frontend. See Node.js as next web platform Use Linux(Ubuntu, RHEL, CentOS) for development and web servers deployment. Software development with C++ (10+ years of experience) for Windows/Linux. Cross-platform development with Qt framework.  less

    ruby ruby-on-rails coffeescript javascript jquery backbone-js mongodb mysql git jquery-mobile google-maps-api c++ qt centos moodle 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 2114 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 3 TESTS
  • Professional Server Help (Linux Administrator)

    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 wordpress 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
    • $50.00 HOURLY RATE
    • 5.0
    • 1321 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Ruby on Rails Developer

    I am an enthusiastic web developer. I love to face critical problem to make the best solution. I enjoy and like to make perfect design and functionality what you need.

    ruby-on-rails mysql mongodb javascript jquery ajax html css3 haml twitter-bootstrap rspec interactive-voice-response sms-gateway payment-gateway-integration twilio-api twitter-api facebook-api linkedin-api google-analytics google-maps-api google-apps amazon-ec2 amazon-s3 ubuntu centos svn github psd-to-html c c++ php wordpress 00 more less
    • $40.00 HOURLY RATE
    • 4.9
    • 2134 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 5 TESTS
  • 16yr exp - Linux Systems Architect / ISP / IT Consultant -

    Having been involved in: * gathering customer's requirements (type of applications deployed) * specifying hardware * deploying (software and hardware installation, including in data centers) * monitoring / profiling * management * virtual infrastructures based on KVM / OpenVZ / VMware / XEN / Sun Ray + Virtualbox * network solutions based … more

    Having been involved in: * gathering customer's requirements (type of applications deployed) * specifying hardware * deploying (software and hardware installation, including in data centers) * monitoring / profiling * management * virtual infrastructures based on KVM / OpenVZ / VMware / XEN / Sun Ray + Virtualbox * network solutions based on Brocade / Cisco / HP / Mikrotik products * full internet provider development * providing adequate documentation in each stage (doc/pdf/Visio) of Linux/UNIX based systems, also managing small IT teams, looking for new challenging projects. * BIND, djbdns, mydns, ndns based DNS architectures; * Qmail / Exim / Postfix-based mail systems; * Websystems to include Apache / MySQL / PostgreSQL / PHP / Perl configurations; * Rails solutions; * Complete webhosting managment - Cpanel/WHCMS /Plesk etc.; * HA Websystems configurations; * MySQL - single servers, Master/Slave configurations or Master/Master; * Tomcat/Resin based Java application servers; * Nagios / MRTG / Cacti monitoring and data acquisition; * Design/development and modification of PHP/Ruby/Perl-based web systems; * MVC framework development on Rais / CakePHP / Codeigniter; Also extensive experience in deployment and management of server configurations in data centers.  less

    linux-system-administration centos puppet-administration python ruby ruby-on-rails php cakephp openvpn freebsd 00 more less
    • $38.89 HOURLY RATE
    • 5.0
    • 5808 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Wordpress Sensei

    Fluent in the art of all things Wordpress... In depth knowledge of Wordpress development and design best practices gained due to considerable experience in working on complex wordpress projects on a continuous basis. Hands on experience in modifying and enhancing … more

    Fluent in the art of all things Wordpress... In depth knowledge of Wordpress development and design best practices gained due to considerable experience in working on complex wordpress projects on a continuous basis. Hands on experience in modifying and enhancing several popular Wordpress plugins. In depth knowledge of front end development and wordpress theming frameworks. Last but not least considerable attention to detail coupled with strong communication skills.  less

    php html wordpress javascript codeigniter ios-development buddypress centos twitter-bootstrap css3 html5 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 1818 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Linux sysadmin, cloud deployments specialist

    I would like to offer you my deep knowledge of servers hardware and software, which allows me to fine-tune servers according to their roles, and my ability to anticipate and solve problems in shortest time possible. No Windows please, Unices … more

    I would like to offer you my deep knowledge of servers hardware and software, which allows me to fine-tune servers according to their roles, and my ability to anticipate and solve problems in shortest time possible. No Windows please, Unices only, Linux preferrable. Lately my main point of interest has shifted to deploying and maintaining web projects in cloud environments. I am developing monitoring / management tool ( http://m-script.org ) and supporting existing installations, but I am very well familiar with all well known alternatives from both monitoring and cloud management side, so no problem to implement any of them. The point is, I know very well how it works. And how it doesn't, too :) I am interested in any system administration work, especially in cloud environments. The more challenging you setup is going to be, the better. Automated scalability, cross-clouds deployments, combination of traditional and dynamically scalable resources, DNS/Geo balancing - everything is possible, just let me know your needs.  less

    linux-system-administration unix-shell mysql postgresql mongodb ruby ruby-on-rails nginx apache-administration email-marketing email-handling hardware-troubleshooting centos ubuntu 00 more less
    • $40.00 HOURLY RATE
    • 4.9
    • 5578 HOURS
    • CZECH REPUBLIC
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 9 TESTS
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