Linux System Administration Freelancers

Showing 4,855 freelancers

Linux System Administration Freelancers

Showing 4,855 freelancers

  • Senior Wordpress/ Joomla Developer

    In these last 6 years of my professional life, i have worked on a variety of projects, both as a team member and team lead. At this stage of the career i have handled projects that can be considered as … more

    In these last 6 years of my professional life, i have worked on a variety of projects, both as a team member and team lead. At this stage of the career i have handled projects that can be considered as complex. I am confident of delivering projects on time and meeting the quality criteria.Areas of expertise are : PHP, Wordpress, Joomla, MySQL, Ajax,CSS, HTML, DHTML, Java Script, XML, Dreamweaver, Linux Windows Server management etc.  less

    wordpress joomla php mysql html5 css xhtml seo cpanel whm whmcs wp-ecommerce linux-system-administration amazon-s3 plesk ssh nginx apache-administration opencart boonex-dolphin 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 336 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 24 PORTFOLIO ITEMS
    • 1 TEST
    GROUPS:
  • Linux/Windows System Administrator/DevOps

    Hi, I am Linux/Windows system administrator I have more than 5 years experience with things like: - Virtualization: VMWare ESX - Building web platforms: Apache, Nginx - Database servers: MySQL, PostgreSQL - Optimization high-loaded web services based on Apache, Nginx, MySQL - Telephony: Asterisk … more

    Hi, I am Linux/Windows system administrator I have more than 5 years experience with things like: - Virtualization: VMWare ESX - Building web platforms: Apache, Nginx - Database servers: MySQL, PostgreSQL - Optimization high-loaded web services based on Apache, Nginx, MySQL - Telephony: Asterisk, 3CX - Building High Availability systems: HA, drbd, haproxy, heartbeat - Network Administration: VPN, firewalls, building secure network architecture - Any kind of e-mail servers, DNS servers - Building automated configuration/deployment systems: Puppet - Windows Administration: Active Directory, MSSQL, Group Policies, Dynamics CRM - LDAP: OpenLDAP, ApacheDS - Continuous integration: maven, Jenkins/Hudson, TeamCity - Development: Java  less

    linux-system-administration virtualization vmware-administration asterisk ldap mysql postgresql apache-administration nginx iptables amazon-ec2 amazon-s3 amazon-web-services postfix dns unix-system-administration unix-shell microsoft-active-directory 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 99 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • Migration expert\Linux System Administrator

    Hello. Im Linux system administrator with 7 years experience. I have great experience in: - Linux maintaince/troubleshooting: Debian, Centos, gentoo, ubuntu, RHEL, OpenSuse, fedora - LAMP stack : apache2 , nginx, php4 - 5.4(cgi fpm cli fcgi), mysql, Varnish, memcached. - Linux serverside … more

    Hello. Im Linux system administrator with 7 years experience. I have great experience in: - Linux maintaince/troubleshooting: Debian, Centos, gentoo, ubuntu, RHEL, OpenSuse, fedora - LAMP stack : apache2 , nginx, php4 - 5.4(cgi fpm cli fcgi), mysql, Varnish, memcached. - Linux serverside: iptables, rsync, named, OpenVPN, exim,dovecot,postfix. - CloudHosting: Amazon (EC2, AWS, S3) rackspace - Hosting providers : Softlayer, Hetzner. - Backup/Migration - Hosting panels : plesk, whm\cpanel, ISP , DirectAdmin - Virtualization: Xen(solusVM) , KVM, OpenVZ + ovz panel, Proxmox - Monitoring: Cacti, Nagios, Zabbix - CMS : Wordpress, drupal, magento.  less

    linux-system-administration bash system-automation data-backup lamp-administration network-administration windows-administration joomla cpanel whm cakephp phpnuke plesk nagios nginx iptables memcached 00 more less
    • $22.22 HOURLY RATE
    • 4.9
    • 541 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Linux System Administrator

    Over the last 4 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 … more

    Over the last 4 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 tecnical resolution and customer satisfaction since I'm having another 1.5 years of exp in BPO voice support for and MNC. I have 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. -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. -Can provide daily shift reports in a well formatted way.  less

    linux-system-administration cpanel whm whmcs wordpress ubuntu centos ldap dns domain-migration joomla apache-administration exim php redhat-administration plesk technical-support mysql 00 more less
    • $8.89 HOURLY RATE
    • 4.6
    • 256 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 2 TESTS
  • Sr. Software Developer / Software Development Manager

    Over the past 10 years I've developed software both professionally, and as a hobby. I enjoy working on more than just my daily grind, so I've come here for a little something extra. Do you have an interesting … more

    Over the past 10 years I've developed software both professionally, and as a hobby. I enjoy working on more than just my daily grind, so I've come here for a little something extra. Do you have an interesting project? Read on, I may have the skills you need. Let's talk desktop/back-end development: C#, Ruby, Go, C, Objective-C, Powerbuilder, SQL (ANSI/MSSQL), Perl. Those aren't languages I've just spent a few hours on; I've shipped products or currently maintain projects in those languages. How about web development? I love writing responsive, cross-browser/cross-platform sites that work as well on the desktop as they do on your phone or tablet. It's a great challenge to stay ahead of the curve.  less

    c# .net-framework sql microsoft-sql-server-development microsoft-sql-server-administration powerbuilder javascript jquery coffeescript objective-c ios-development computer-networking linux-system-administration node.js postgresql ruby sinatra-framwork perl 00 more less
    • $111.11 HOURLY RATE
    • 5.0
    • 173 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 2 TESTS
  • Server and Network Administrator

    My prime goal is to help peoples who are in need of Server/Network related issues by accomplish their requirements and I feel comfortable working on both Linux & Windows platform. With 9+ years of experience I have configured several email … more

    My prime goal is to help peoples who are in need of Server/Network related issues by accomplish their requirements and I feel comfortable working on both Linux & Windows platform. With 9+ years of experience I have configured several email servers (Postfix, qmail on Linux, Exchange Server, MDaemon on windows), Web Servers (Apache, IIS), Proxy Servers using Squid, DNS with BIND and OpenDNS, VPN server, Database Server with MySQL, SQL Server, Migrated lots of website using cPanel/WHM, Plesk etc. and have deployed multiple virtual servers like AWS EC2, Hyper V and VMWare on Linux and Windows platform.  less

    linux-system-administration microsoft-small-business-server-administration mail-server-implementation microsoft-exchange-server zimbra-administration postfix domain-migration iis apache-administration cpanel amazon-web-services vmware-administration mysql php microsoft-sql-server-administration sugar-crm vtiger 00 more less
    • $13.33 HOURLY RATE
    • 4.8
    • 294 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 8 TESTS
  • Mr.

     Design and implementation of Vmware ESX and ESXi Server/ Vsphere and other virtual technologies (VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.)  Performs the tasks of designing Advanced Security & Management Solutions.  Design and implementation of DNS Servers, Unbound DNS … more

     Design and implementation of Vmware ESX and ESXi Server/ Vsphere and other virtual technologies (VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.)  Performs the tasks of designing Advanced Security & Management Solutions.  Design and implementation of DNS Servers, Unbound DNS Server, Kerio Mail Servers, Send Mail Server, TACACS Server, CRM System, DOCSIS Cable Modem Termination System, Incognito DHCP Broadband Command Centre for CMTS.  Bandwidth management for Optical Fibre customers on Routers and Switches, Monitoring of links by using network performance monitoring tools such as Cacti, Manage Engine Netflow Analyzer, Solar Winds, Smonitor, Nagios etc  Implementation of routed & routing protocols, like OSPF, BGP, EIGRP in live environment  Worked on Cisco 2950, 2960, 3550, 3560, 3750, 6509 switches and 2500, 2600, 2800, 3600, 3700, 7200,  7600 series Routers in real environment approx. 500 Hours.  Implementation of (VLANs, VTP, RSTP, MSTP, ETHERCHANNEL, INTER VLAN ROUTING, HSRP, PRIVATE VLAN, SWITCH PORT SECURITY)  Design and implementation of VPNs ( Site-Site, Remote Access, DMVPN, IPSec over GRE, Get Vpn)  Design and implementation of MPLS VPNs  Management of CAR on routers and switches by rate limited feature  Design and implementation of (AAA with Local & Remote ACS Server, 802.1 x authentications, Proxy Authentication).  Design and Implementation of Microsoft Active Directory 2003 based on Microsoft best practices. Implementation of Anti virus Servers (Kaspersky, Sophos) in a medium sized company  Design and Implement SAMBA server using LDAP authentication for LAN users.  Design and Implementation of Send Mail Servers, MS Exchange e Server 2003/2007 based on Microsoft best practices.  Design and Implements SQUID 2.4, 3.1 Proxy Server based on Centos, Red Hat OS.  Implementation of different Network Performance monitoring tools such as (Cacti, Net Flow, Manage Engine OpUtils, SMonitor, Solar Winds, Nagios, JFF) to monitor WAN devices and different servers to optimize network resources and traffic.  Design and implementation of SIP on cisco voice gateways.  Design and implementation of MPLS VPNs  Support and Maintain Cisco Core Routers 7206VXR. 7600 Series, 2800 Series, small business series RV042, RV082 for vpn connectivity.  Supporting and Managing HEC Cisco Core and Edge Switching network.  Design and Implements SQUID 2.4, 3.1 Proxy Server based on Centos for differnet clients.  Deploy cacti, solar wind, cisco works Monitoring System to monitor Network and Bandwidth Usage.  Management of CAR on routers and switches by rate limited feature.  Design of Networking Infrastructure and resource sharing solution. The project covered the design of networking system, Servers, and applications in Windows 2003 environments. The project used TCP/IP as Network protocols and Star Topology.  Conduct Surveys on client sites and create project proposal and layouts for networks deployment and implementation.  Design and Implementation of BGP/MPLS, Traffic Engineering, Policy Based Routing PBR, Route Filtering, Redistribution, Route Summarization.  Catalyst IOS based Switches, VTP, STP, RSTP, Trunking, VLANs,  Layer 3 Switches, Logical Etherchannels, MLS.  IPSec, VPNs, AAA Model (RADIUS, TACACS+, Kerberos), Cisco PIX / ASA  Firewall, VPN Client, Juniper Firewall SSG5, SSG20  Design and Implementation of Incognito DHCP Server for assigning bandwidth to cable modem customers.  Media: Ethernet, FastEthernet, GigabitEthernet, FDDI, CDDI, Token Ring, ATM LAN Emulation.  Network Analyzers: Back Track 5 , Ethereal, Paketyzer, Radcom, Etherpeek.  Load Generator: Spirent Smart Bits, iperf, IPTraffic.  Leased lines 64k - 155Mb (PPP / HDLC), Channelized lines (E1 ), Fibre Optic Circuits, Frame Relay, xDSL, Load Balancing, Multi Homing, Satellite links. I also have extensive experience in following  Linux & Windows Integration in TCP environments  Expertise Linux Redhat, Ubuntu, SUSE, Centos, Debian, Slackware and Solaris Systems  Expertise in SQUID Proxy server. DNS Server, DHCP, Send Mail, Kerio Mail Server.  VMware ESX Server, Virtual Center, Distributed Resource Scheduling (DRS), VMware Data Backup , VMware Converter, VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.  less

    asterisk linux-system-administration dns mail-server-implementation squid pfsense dhcp network-security solaris-administration windows-administration microsoft-exchange-server samba cisco-asa cisco-routers juniper-routers vpn mpls vmware-esx sendmail 00 more less
    • $11.11 HOURLY RATE
    • 4.5
    • 78 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Drupal / PHP Full-time Freelancer with around 10 years of experience

    I have around 10 years of experience working with cutting edge tools like Drupal, PHP, Moodle, Ubercart, Drupal commerce, Apache SOLR, Google Search Appliance (GSA), Drupal COD, Open Atrium, etc and built web applications ranging from corporate websites to high … more

    I have around 10 years of experience working with cutting edge tools like Drupal, PHP, Moodle, Ubercart, Drupal commerce, Apache SOLR, Google Search Appliance (GSA), Drupal COD, Open Atrium, etc and built web applications ranging from corporate websites to high traffic social network portals. To know more about me and my professional experience, kindly visit http://www.surendramohan.info/ . Roles handled: 1. Drupal Developer 2. Drupal Lead 3. Drupal Architect cum project lead 4. Project manager/Delivery manager cum drupal architect Additional activities: 1. Technical and user reviewer of Drupal books with Packt Publishing 2. Author at Packt Publishing (Administrating Solr) - http://www.packtpub.com/administrate-monitor-and-optimize-solr-using-drupal-associated-scripts/book 3. Author at Packt Publishing (Apache Solr High Performance) - http://www.packtpub.com/apache-solr-high-performance/book 4. Active member of Drupal association 5. Active contributor to drupal initiatives especially Drupal 8 6. Technical blog writing 7. Organizer of Drupal events, meetups, camps, etc held at Mumbai and Pune, India 8. Speaker at Drupal meetups, events, camps, etc held at Mumbai and Pune India. 9. Corporate Trainer (Drupal, Moodle and GSA)  less

    drupal php mysql moodle oscommerce joomla html5 css3 xhtml css magento wordpress mediawiki ecommerce-consulting linux-system-administration web-design website-development website-wireframing seo google-analytics 00 more less
    • $16.67 HOURLY RATE
    • 4.9
    • 217 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • Ruby on Rails Senior Developer

    Over the last 6 years, I have developed a wide range of websites using Ruby on Rails sites for startup companies and small businesses. I'm experienced in using any Rails version with newest Ruby version, Javascript framework, node.js … more

    Over the last 6 years, I have developed a wide range of websites using Ruby on Rails sites for startup companies and small businesses. I'm experienced in using any Rails version with newest Ruby version, Javascript framework, node.js, Unix system, most of famous database engine. I also have experience on PHP using with most famous of framework.  less

    php cakephp ruby ruby-on-rails database-design mysql mongodb rspec cucumber selenium linux-system-administration ubuntu javascript jquery node.js html5 html 00 more less
    • $15.00 HOURLY RATE
    • 4.0
    • 753 HOURS
    • INDONESIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 3 TESTS
  • Senior web-developer

    During the last 6 years i develop software using many languages for different Operating Systems. I've worked with languages: PHP, Javascript, C\C++, Java, Perl, Python, Assembler. I've worked with different OS: Linux, Windows, FreeBSD. For data storage … more

    During the last 6 years i develop software using many languages for different Operating Systems. I've worked with languages: PHP, Javascript, C\C++, Java, Perl, Python, Assembler. I've worked with different OS: Linux, Windows, FreeBSD. For data storage i've used: MySQL(MariaDB), SQLite, PostgreSQL, MSSQL, MongoDB. I have experience developing applications for Android. I have also some application for development of MCU (MicroController Unit) devices (AVR). I have developed many kinds of web applications on different PHP frameworks and CMS for companies and small businesses. I have a lot of experience with HTML (HTML 5) and CSS (Sass). I have worked with template engines: Smarty, Twig. I've worked with frameworks/libraries: PHP - Kohana, Yii, CodeIgniter, FuelPHP Python - Django Javascript - JQuery, MooTools CSS - Twitter Bootstrap C++ - Qt (for cross-platform software), OpenCV library (background subtract, captcha recognize)  less

    php kohana yii-framework qt c++ assembly-language perl linux-system-administration database-design database-administration database-programming c sql mysql html bash css ajax javascript smarty 00 more less
    • $24.44 HOURLY RATE
    • 5.0
    • 13 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 8 TESTS
    GROUPS:
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