CentOS Freelancers

Showing 152 freelancers

CentOS Freelancers

Showing 152 freelancers

  • System Administrator, Linux Engineer, Web Server Specialist

    Hello, I'm a professional systems administrator currently working for a University in Chicago. I also run a small consulting firm www.drowerconsultants.com that caters to clients' needs in server administration, e-commerce and hosting. From building e-commerce sites to … more

    Hello, I'm a professional systems administrator currently working for a University in Chicago. I also run a small consulting firm www.drowerconsultants.com that caters to clients' needs in server administration, e-commerce and hosting. From building e-commerce sites to hosting/managing high traffic blogs to simple administration tasks, Drower consultants are here to make your life as a business owner easier on the back end. I am a native English speaker, and based in the United States. My company has no problems signing NDA's or honoring any type of domestic contract. Some of my experience: Deploying highly available webapps into custom built infrastructures Clustering and load balancing webservers/database servers Data backups, Database/File backups, backup automation and troublshooting Running large small website networks on servers. Including file management and performance tuning of a high number of small independent sites. Email Server/Postfix Configuration - Building and troubleshooting mailservers  less

    linux-system-administration centos 00 more less
    • $38.89 HOURLY RATE
    • 5.0
    • 56 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Linux server administration Expert

    I have mostly worked on web infrastructure setup and maintenance. So my ideal job roles revolve around apache, svn,tomcat and server cloud. I have hands-on server build and maintenance experience on Centos 4,5, RHEL 4,5, Ubuntu 10 … more

    I have mostly worked on web infrastructure setup and maintenance. So my ideal job roles revolve around apache, svn,tomcat and server cloud. I have hands-on server build and maintenance experience on Centos 4,5, RHEL 4,5, Ubuntu 10.10 and 11.04 I have recently started working on puppet ( almost 6 months now) . I can fairly write puppet recipes to automate remote server/application package deployments etc .. Troubleshooting apache,php,svn,jboss,tomcat,F5 and off-course centos and ubuntu, in short web hosted environment i love diving-in ! Given a chance i can also be very handy at bash shell scripting ( sorry perl lookers :-)) I also know lot more things like nagios, F5 blah blah blah.. Well, So much being said on skills, You may test me via an interview or if you want to go a step further .. I own a test server,so bring your tests or .. questions or .."can you setup xyz, before i grant you this job..." sort of things i will get it done on my test server.  less

    centos 00 more less
    • $11.11 HOURLY RATE
    • 4.9
    • 28 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    ASSOCIATED WITH:
  • System Administrator

    I'm a System Administrator with 5 years of experience. Also, I have couple cPanel certificates: https://university.cpanel.net/c-summary.php?code=zzqd-532226 Currently I'm FreeLancer I can very quickly master the new system, suggest some alternative solutions … more

    I'm a System Administrator with 5 years of experience. Also, I have couple cPanel certificates: https://university.cpanel.net/c-summary.php?code=zzqd-532226 Currently I'm FreeLancer I can very quickly master the new system, suggest some alternative solutions etc. I'm young and experienced Linux Administrator. I can help you with server installation/configuration, recommend some hosting providers etc. I like to learn new technologies or improve my knowledge with old ones. I don't bid projects which I won't be able to complete as others do.  less

    cpanel apache-administration ftp exim mysql whm technical-support linux-system-administration centos 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 339 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • can't do is not an option

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - Web servers (apache, nginx, lighttpd), - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin … more

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - Web servers (apache, nginx, lighttpd), - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), - Bulk marketing (Dkim, spf, high speed/inboxing, interspire, powermta,returnpath), - Automation (puppet, perl/shell/awk scripting), - Monitoring (nagios, zabbix,cacti), - Database Optimization,Replication (MySQL)  less

    mysql apache-administration lamp-administration postfix amazon-ec2 amazon-web-services squid nginx magento linux-system-administration performance-tuning load-balancing clustering haproxy centos 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 97 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • Java,Android , J2EE , JSF , Asterisk, c#

    More than 4 years of experience in Java development. Frequently used tools and technologies are Eclipse , MyEclipse , JSF (icefaces, rich faces and prime faces) , Ibatis, JavaScript, Jquery , Hibernate , Postgresql (For database), MySql and many others. For OS flavors i mostly … more

    More than 4 years of experience in Java development. Frequently used tools and technologies are Eclipse , MyEclipse , JSF (icefaces, rich faces and prime faces) , Ibatis, JavaScript, Jquery , Hibernate , Postgresql (For database), MySql and many others. For OS flavors i mostly work with Linux (Ubutnu, CentOS) all Microsoft Windows platforms. I am also engaged with Asterisk for different IVR and VOIP projects along java and web integrations. I have good experience with SVNs like Bazaar and tortise. Good knowledge of large code base management. Apart from management and development of Software Projects i also teach programming at University and to some online students.  less

    android-app-development jsp asterisk j2ee linux-system-administration ubuntu centos jsf joomla adobe-photoshop photo-editing 00 more less
    • $22.22 HOURLY RATE
    • 4.7
    • 102 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 3 TESTS
  • node.js (ex. php) backend webdeveloper

    I'm one of the 3% most active JavaScript users on github - see first link in my portfolio. I prefer making keep-it-simple hi speed and highload web applications. I have developed more than 5 RESTfull NodeJS servers for mobile applications … more

    I'm one of the 3% most active JavaScript users on github - see first link in my portfolio. I prefer making keep-it-simple hi speed and highload web applications. I have developed more than 5 RESTfull NodeJS servers for mobile applications. Data exchange were carried via xml/json,and HTTP get/post queries. I have created more than 5 webscrappers/proxies on phantomJS I can use MySQL,PostgreSQL, AmazonRDS, MongoDB, Redis as databases. I can deploy this applications on Centos 6.4 VPS/VDS servers or Heroku Cloud Application Platform. In my work i use git,mercurial and SVN version control systems, for every job i create a private repo at bitbucket.org for (me and customer only) for feedback, bug reports and support. I have a strong background as php/zend/symfony 1.4 developer and linux user since 2002 year.  less

    node.js redis javascript php jquery mysql mongodb apache-administration linux-system-administration centos api-development heroku git mercurial svn ssh nginx symfony zend-framework 00 more less
    • $28.89 HOURLY RATE
    • 4.8
    • 415 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 6 TESTS
    GROUPS:
  • Expert Wordpress/PHP developer | Scripting expert

    I have lots of experience building and enhancing Wordpress plugins. My main strengths are: - Clean coding - 100% Wordpress coding standard compliant - Availability - usually respond within 5 to 10 minutes to any queries during CST workhours - Fast and top quality work … more

    I have lots of experience building and enhancing Wordpress plugins. My main strengths are: - Clean coding - 100% Wordpress coding standard compliant - Availability - usually respond within 5 to 10 minutes to any queries during CST workhours - Fast and top quality work I also have experience developing web pages using Perl and/or PHP, Javascript/jQuery, VBScript, CSS, Ajax and MySQL databases. I worked for a Fortune 500 automotive company in a reporting and analysis position, and also building and maintaining a website in the company's intranet using Perl and MySQL. After that I was in charge of supporting a website built with Java and the Spring framework, using both MySQL and Oracle databases, for customers worldwide. I also worked at the tech support helpdesk for that same company for over a year, troubleshooting Linux servers and workstations, networking and other data related issues. I was also in charge of administering KBOX ticketing system for over a year, from content management to database administration, to scripting solutions for its customers. I also have knowledge in scripting using different technologies, such as VBScript, Javascript, Linux shell scripting, Perl, and some Powershell, as well as VBA for Excel and HTAs. I was also regularly troubleshooting C and Java programs for bugs and/or enhancements. After that, I moved to a company named Softtek as a Software Engineer, I was part of a team that develops Wordpress plugins and themes for an American multinational conglomerate corporation. The last position I held was for yet another company as a Linux intermediate administrator, where I was in charge of managing users with Centrify and I also installed Cacti to monitor some of the company's servers running CentOS. Currently, I work on my own mostly developing Wordpress plugins and themes. I have specialized myself working on web development, mainly PHP with MySQL databases, but also Javascript/jQuery for the front end.  less

    wordpress php microsoft-excel perl microsoft-visual-basic jquery javascript vbscript centos web-scraping website-development java c data-scraping oracle-database mysql sap-sybase-adaptive-server-enterprise oop vba .net-framework 00 more less
    • $55.56 HOURLY RATE
    • 5.0
    • 70 HOURS
    • MEXICO
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 18 TESTS
    GROUPS:
  • Linux/Unix System Engineer, Cloud Solutions, Junior Ruby Developer

    Management Systems, provide Infrastructure solutions, always focused to deliver high available solutions, for my clients. OSs: Debian, Ubuntu, Centos WEB deployment: (installation / optimization / deployment /) using: - Apache, Nginx, PHP, MySQL, Varnish, Memcached, Java Applications based on Tomcat - Development Processes automation based … more

    Management Systems, provide Infrastructure solutions, always focused to deliver high available solutions, for my clients. OSs: Debian, Ubuntu, Centos WEB deployment: (installation / optimization / deployment /) using: - Apache, Nginx, PHP, MySQL, Varnish, Memcached, Java Applications based on Tomcat - Development Processes automation based on Jenkins, Puppet. - Deployment (configuration and administration) of web applications built on: - Drupal CMS, Magento, Zend, Symfony Framework Databases (installation, configuration, administration): Mongodb, MySQL Cloud Systems: AWS(auto scaling, Loadbalancer, EC2, S3, Route53, Automations scripts (API)), DigitalOcean PaaS: Openshift Monitoring Tools: - Capturing, analyzing and storing statistics with Logstash, Graylog2, AMPQ, Elasticsearch - Drawing maps with statistics Collectd, Graphite - Alerts, notifications and syslog with Dude, Nagios - Advanced knowledge of Nagios Hight secured VPN system: OpenVPN based Virtualization: ESXi, KVM, OpenVZ Networking: Advanced level of administration Cisco devices: CCNA Certified, Basic level Mikrotik routers Backup Bacula based Storage systems, NFS, Glusterfs. Subversion administration. Chat, Openfire based Basic level: Bash scripting, SQL, Ruby, Capistrano, MongoDB, Vagrant, F5 BIG-IP load balancer, Haproxy  less

    cisco-routers tcp-ip devops agile-software-development jenkins haproxy linux-system-administration mysql openvpn centos apache-administration nginx windows-administration windows-7-administration unix-shell amazon-ec2 amazon-rds amazon-web-services amazon-s3 00 more less
    • $16.67 HOURLY RATE
    • 4.8
    • 538 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Network and System Administrator

    Level 3 support for various customers. Technologies: MS Windows 2003/2008 Linux (CentOS) MS Exchange 2003/2007/2010 BlackBerry Enterprise Server Plesk, cPanel SonicWall Firewall, Cisco, Fortigate VPN Tunnels Network Load Balancing and High Availability IIS, Apache, Tomcat DNS Server … more

    Level 3 support for various customers. Technologies: MS Windows 2003/2008 Linux (CentOS) MS Exchange 2003/2007/2010 BlackBerry Enterprise Server Plesk, cPanel SonicWall Firewall, Cisco, Fortigate VPN Tunnels Network Load Balancing and High Availability IIS, Apache, Tomcat DNS Server MACOS Citrix XenServer, Microsoft Hyper-V, Vmware MSSQL, MySQL Exim, Postfix, PowerMTA Elastix, Asterisk, PBX technologies I've been involved in various maintenance and/or implementation projects based on technologies mentioned above.  less

    linux-system-administration firewalls tcp-ip apache-administration iis network-administration vpn virtualization microsoft-virtual-server centos asterisk cisco-asa elastix citrix-xenserver xen-hypervisor xen-cloud-platform windows-nt-administration windows-administration cpanel blackberry-app-development 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 882 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
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