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Post your Linux system administration project on Upwork and find Linux experts and system administrators to assist you with your Linux server installation, configuration, maintenance and technical support tasks. These experienced consultants can manage your Linux network and infrastructure security or perform backups and security scans or updates and identify threats on your Linux OS system. They can also deploy web applications, eCommerce systems and content management systems on your Linux server, or migrate your virtual machine to a physical Linux server. You can also find a professional Linux sysadmin, experienced in system monitoring and control tools, to manage and optimize your Linux-based server farm.

Linux is a collection of free and open-source, cross-platform, Unix-like operating system distributions, among which the most widely known are Ubuntu, Red Hat and Slackware. On Upwork, the world’s largest online workplace, you can find experienced Linux system administrators to set up dedicated Linux web servers, install web hosting control panels (like ZPanel, Plesk, cPanel or DirectAdmin), set up SQL databases and file managers or configure Linux server security and accounts.

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Linux System Administration Upwork freelancers typically receive a client rating of 4.79.

Last updated: October 1, 2015
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Marifi M.

Network / IT / System


 Hands-on experience on network devices such as routers, switches, wireless access points, modems, voice over IP devices.  Able to plan, design, implement network designs based on customer needs.  Maintain network and ensure the availability most of the time.  Possesses a deep knowledge and experience in devices and networking protocols such as Cisco, Juniper, HP, Adtran, etc.  Expert knowledge of all aspects of TCP/IP  Proficient in routing protocols such as Static, RIPv2, EIGRP, OSPF, BGP.  Can implement and troubleshoot VLANs, VTP, L2 and L3 switching, STP, RSTP, 802.1q on switched networks.  Knowledgeable in WAN technologies (DSU/CSU, NAT/PAT, MPLS, Frame-Relays, ATM, Ethernet, HSSI).  Good understanding of network security, ACLs, Cisco IOS-based firewall and IPSec VPN technology.  Understanding of network analysis such as Wireshark, WAAS (WAN Accelerator) module, Riverbed, Visual.  Disconnection and reconnection of all hardware IT devices of large scale companies  Managed desktop, monitors, docks, cable management of HP, Dell, Toshiba  Installation of Windows Server 2012, Active Directory, Exchange Server 2013, Hyper-V  Installation of anti-virus Trend Micro, Malware bytes  Troubleshooting of Microsoft based computers  Working knowledge in Networking such as routing, switching, security and wireless access points  Knowledgeable in installing, configuring and troubleshooting Windows Server 2003, 2008, and 2012, AD, and Exchange  Working knowledge in troubleshooting Windows 7 problems and other MS based products  Hardworking and willing to work after office hours  Great communication skills  Can work under pressure and with minimal supervision Network Engineer L2 / Desktop Rollout Engineer (casual employment)  Install and configure routers and switches  Install and managed desktop/laptop such as Dell, HP, Toshiba, Apple  Responsible for cable management  Installation of network devices such as switches, wireless access points, etc  Racking and stacking of network devices  Implement RDP and all other needed software for the remote connections  Implements routing protocol (BGP, EIGRP, RIP, OSPF, static), path control, Qos, network management tools based on SLA and ensure the customer has connectivity to all of their sites via Verizon’s Private MPLS network  Installs customer premise equipment such as routers, switches, modems, access servers and network monitoring tools remotely  Install, configure, troubleshoot network device (such as routers, switches, wireless access points, VOIP devices, PABX, firewalls) to all head offices  Configure, troubleshoot network devices remotely for all branches  Inspect and conduct monthly inventory of all network devices (routers, switches, access points) to all head offices  Ensure the availability of network connections of all branches and head offices (with backup circuits)  Add all network devices to a Network Monitoring device (Solarwinds Orion, Nagios)  Responsible for giving ideas and implementing different projects for the network improvement of the company  Provide level 1 support for all the users’ problems with the hardware (printer, desktop, and other user devices)  Communicate with the user through phone, email and personally to isolate all technical issues they encounter such as application error, hardware problems, desktop support  Provides technical assistance to all users (desktop support, hardware problems)  Responsible for the billing statement of all the clients  Assist the AutoCAD Engineer in doing project designs CERTIFICATIONS and TRAININGS o Cisco Certified Network Associate (CCNA) o CCNP Routing and Switching o Linux Basics o Microsoft Basics

$27.78 /hr
0 hours

Anthony B.

Anthony B.

Technical Support

Philippines - Tests: 5 - Portfolio: 2

Its been 12 years, and yet active as technical resource and primary point of contact for server and network administration. I have successfully implemented and migrated Databases (postgres, mysql, MS Sql 2005 & 2008), Setup windows Server (2000NT, 2003, 2008, 2012), and Unix/Linux as System Administrator. And as network administrator constructed structured cabling, deployed and manages switches (L2), routers from small to corporate offices, firewall like SonicWall 5060 & NSA 5000 series, and Cisco ASA 5510/5505. I am also knowledgeable in developing Web design using Dreamweaver, Html, Php and MySql.

$17.78 /hr
16 hours

Mathew G.

Mathew G.

Experienced Customer Support & Core Network Implementation Engineer

Kenya - Tests: 5

I am Young focused and hardworking person a holder of Bachelor of Science in Computer Engineering with 5000+ Odesk working hours in Customer and Technical Support in great online software companies and video design Integrations. I have Over 6 Cumulative years in as Customer/Technical support having worked in ISP based on VSAT Communication (KU-band and C-Band of Various Dish Capacities), Hub/NOC Planning & Design, Monitoring for (iDirect, Hughes & NewTec) using Various Management & Monitoring Software (Hughes NMS, iMonitor, NewTec, Packeteer etc) based in ISP’s NMC and Customer Support Departments. In Mobile Telecommunication Experience as a Core Network Integration Engineer for Multinational Telecommunication Vendor (Huawei) CS Products (MSOFTX300/UMG8900/HSS/HLR 9860). Also worked before in same vendor as Solution Architect/Pres-sales Engineer (for CS/PS & Carrier Software Products and Solutions) and as Core Network CS Engineer involved in Core Network Planning, Design and Implementation. I have great work experience in Internet Protocols (SS7 / SIGTRAN/MAP / CAP/ TCAP / CAMEL) , 3GPP CN standards and protocols and in particular BSSAP,RANAP/MAP. I have done Integrations with E/// MSC/BSC (TD/BSC)/RNC, Telepins (MFS), Mavenir's (EIR) and other Vendors.

71% Job Success
$12.22 /hr
5,679 hours

Ramiro Sabastta

Ramiro Sabastta

Telecommunication and IT expert

Argentina - Tests: 2

I have a vast experience in customer relationship and project leading. Lot of experience working in the telecommunications market, HW infrastructure and architecture, in project management and technichal area with knowledge and management of various communication protocols (ISUP, SIGTRAN, SIP, INAP, CAMEL, etc) and networking including IMS, NGN, 2G, 3G and WiMax technologies Specialties:asp, c, c + +, computer hardware, database administration, english, intelligent network, ip, linux, excel, windows, msc, multimedia, mysql, oracle, networking, operating systems, oracle, php, programming, protocols, proxy server, pstn, python, routers, shell scripting, smp, sms, solaris, spanish, sql, ss7, switches, system tandem, tcp/ip, technical support, telecommunications, training, translation, troubleshooting, unix, vbscript, visual basic, voip

$27.78 /hr
0 hours

Taeseer Ch

Taeseer Ch

cPanel, Parallel, SolusVM, OpenVZ, Linux/Windows, Sharepoint, Exchange

Pakistan - Tests: 1 - Portfolio: 11

6 Years to experience in Linux/Windows Server Administration. My hands own experience includes: cPanel Parallel Plesk Panel OpenVZ Website Panel SolusVM XEN Spam Experts Spam Control Expert CudaMail Apache LAMP MySQL MS SQL Server Softaculous Cloud Flare Simlink Prevention Application Firewall DNS Management Active Directory Migration MS SQL Database Migration Linux/Windows IT Support Virtualization(Xen, OpenVZ, SolusVM, Hyper-V) SharePoint Administrator MS Exchange Qmail Mail Enable MySQL Clustering SSL As a professional I believe in quality of work rather then quantity, and try my best to satisfy client/customer.

$12.00 /hr
0 hours

Khushi M.

Khushi M.

System Administrator & Web Developer

Pakistan - Tests: 8 - Portfolio: 6

I have expertise in following: • Enterprise NMS using Nagios, Centreon, OpenNMS, Zabbix, Munin, Cacti, Monitorix, Xymon administration & monitoring. • Installation, configuration, troubleshooting and management of Solaris Servers both with x86 and Sparc architectures. • Manage network in Linux environment. Install, configure and deploy (Linux Flavors. RED HAT, Centos, Debian, Ubuntu etc) • DTrace, Patch Management, Syslog, NTP, BART, Apache, Postfix, Dovecot, Squirrel Mail IPMP, SFTP, Firewall, Bash Scripting, Cronjob, Users account management. • OS Hardening, Security, Auditing, Patching on linux & solaris servers. • Web Server(apache,nginx), Tomcat, PHP, Phpmyadmin, Wordpress, Joomla, Java. • Database Server(MySQL Server), MySQL Master-Master & Master-Slave Replication. • Plan and implement data security by file permissions, back up and disaster recovery plans. • Troubleshoot networks, systems and applications to identify and correct malfunctioning and other operational difficulties. • Storage Area Network, NFS, iSCSI, DRBD • Resolve local network/system issues. • Configuration and set-up of all new server systems required internally for the company's activities • OS hardening and Patching • Backup, security management, user account management, e-mail systems including internet access, office systems and applications support. • Server backup using rsync • Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs • Configuration and maintain the Remote Servers • Vulnerability scanning of Networks, Web Applications In addition to this experience, I have created a website The goal is to give the better solution and guide for system administrator to make the things easy. I also bring to the table strong computer proficiencies in Wordpress, MS Word, MS Excel and CRM database applications. I have developed a wide range of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build & configure websites from the ground up for you or your business.

$10.00 /hr
0 hours

Bhavin Jasani

Bhavin Jasani

Vibha Infosystems

India - Tests: 9 - Portfolio: 6

I am experienced Programmer having 3+ years of IT Development.I provide expertise in search marketing solutions for business on a worldwide basis including website promotion, online advertising and search engine optimization techniques to improve its clients' positioning in the search engines.Also provide Web Development,Web Designing,Data Entry work.I will cater to the higher education market, including colleges, universities and professional educational institutions. I want to be more than expendable, one-off hired hand - my goal is to help you not only by implementing what you require of me, but also by providing advice, guidance, and best practices based on my wide experience. I'll understand your business needs and will always help to fulfill them - even if it requires more effort from me. I'd be happy to build a long-time relationship and became a valuable resource for all your development and software architecture needs.

Groups: Corona Labs

$14.44 /hr
50 hours

Curtis Click

Curtis Click

Systems Engineer

United States - Tests: 16 - Portfolio: 11

Objective To obtain a senior software engineering position in the entertainment industry that will allow me to utilize my diverse array of technical, creative, and problem solving skills while allowing me to apply my love of games and entertainment. Professional Skills · Languages – C/C++, C#, Java, PHP, Python, Perl, Lua, HTML/CSS, JavaScript · Databases – MySQL, MsSQL, Access, PostgreSQL (limited) · Source Control – Perforce, CVS, Subversion, Mercurial · Operating Systems – Windows, MacOS, Unix (Linux, BSD variants, Solaris) · Hardware Platforms – PC, Mac, iOS, Blackberry OS, Windows Mobile

$11.11 /hr
0 hours

Gaurav Kushwaha

Gaurav Kushwaha Agency Contractor

Expert System Administrator, Expert Programmer ( Java and scripting )

India - Tests: 10

Over the last 5 yrs I am working in areas like J2EE, Linux and Windows system administration which includes WebServers ( Apache, IIS ), Mail Servers ( Postfix , Exchange ),LDAP, AD, DNS, MySQL, CMS ( Joomla, Drupal, WP, Magento), Asterisk, Nagios, SMS Gateway etc. I have done virtualization using HyperV, VmWare and VirtualBox. Also, I have also setup security for systems using vlans, IpTables, port blocking etc. In addition to above mentioned server systems, I have done migrations of websites from Linux to Windows and vice versa,and migrations of mail servers from postfix to exchange and exchange to office365 and vice versa. I have setup also backups ( both enterprise grade and with small scripts ). Till now I have worked on Labtech and Nagios to monitor and also to provide proactive maintenance to systems. I know programming as well, so I try not to do repetitive work and hence create scripts, which results in less errors and better productivity. I have knowledge of Java, Java script, Shell Scripting, php and SQL.

Groups: Microsoft Certified Professionals

Associated with: AKBSoftTech

$8.33 /hr
460 hours