Network & System Administrators

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  1. Daniel Yavorovich

    Daniel Yavorovich

    System Administrator

    Ukraine - Last active: 1 month ago - Portfolio: 1

    Operating Systems ● FreeBSD ● Linux Security ● iptables ● openssl ● jail ● clamav ● mod_security ● mod_clamav DNS ● Bind ● PowerDNS (+PostgreSQL / +MySQL) HTTP ● Apache ○ MPM: prefork, worker ○ mod_ssl, mod_php, mod_wsgi ● Nginx ○ Access control ○ Autoindex ○ Fast-CGI ○ uWSGI ○ Proxy ○ Cache ○ SSL ○ upload_progress_module ○ Control panel integration ■ Virtualmin ■ DirectAdmin ■ Plesk Proxy ● squid ○ basic auth ○ transparent proxy ○ cache ● 3proxy ○ http/socks ○ auth Raid ● Linux ○ md(0,1,5,6,10) ● FreeBSD ○ Gmirror / Striping File Systems: ● Ext 2,3,4 ● ReiserFS ● XFS ● OCFS2 ● ZFS (port to FreeBSD) ● CEPH CVS ● SVN ● Mercurial ● GIT ○ GitLab ○ GitoLite Backup ● rsync ● BackupPC ● Bacula FTP ● ProFTPd ● VSFTPD File sharing ● NFS ● SAMBA Control Panel ● Direct Admin ● Webmin+Virtualmin ● CPanel ● ISP-config ● Plesk Automatization ● Puppet ● Saltstack Monitoring ● Zabbix ● Nagios ● Munin ● Monit Network Understanding of theoretical and practical foundations of the networks (Data link, Network, Transport, Application Layers). VPN ● OpenVPN ● PPTP Database (SQL) ● MySQL (+MariaDB, +Percona) ● PostgreSQL Database (NoSQL) ● ElasticSearch ● Riak ● MongoDB ● Cassandra ● Redis Virtualization & Containerization ● KVM ● XEN ● OpenVZ ● LXC ● Docker ● Vagrant Cluster ● DRBD ○ master-slave ○ master-master (+ocfs2) ● Heartbeat ● Pacemaker Development ● actively use: ○ shell (bash, sh) ○ Python ● Frameworks ○ Django ○ Flask ○ Twisted ○ Tornado Cloud Solutions: ● AWS (EC2, S3, CloudFront, Route53) ● DigitalOcean ● RackSpace

    $33.33 /hr
    40 hours
    5.00
  2. Sudan D.

    Sudan D.

    Network Engineer : Cisco : Juniper : Fortinet :

    Nepal - Last active: 20 hours ago - Tests: 6 - Portfolio: 4

    Despite the fact I am in young age I have years of experience with computers, networking and system. I am very tenacious and autodiact technical person for Cisco and Juniper Enterprise Network. I love to dig deep into specific technical challenges. 6+ years experience in Enterprise Netwrok. # Hands On Experience # Cisco: ASR 9K, ASR 1K, Nexus 7K, Nexus 5K, 4507R+E, 3900 Series, 2900 Series, 3850 Switches, 3650 Switches, 2960X Switches, ASA 5525X, ASA 5515X, ASA 5512X Juniper: MX40, MX5, SRX 550, SRX 240, SRX 220, SRX 210, SRX 100, EX 4300, EX 4200, EX 3300, EX 2200, MAG 4610, etc. More from Other Vendors # Some Highlights # @ Defining architecture and design for Enterprise customers. @ Lead engineer on some of the big enterprise networking projects. @ Training Internal Employee and customer. Main focus on Cisco and Juniper internetworks at Campus and Enterprise customers http://np.linkedin.com/in/sudandhakal

    $30.00 /hr
    130 hours
    5.00
  3. Faisal Iqbal

    Faisal Iqbal

    Smart Web Worker

    Pakistan - Last active: 6 days ago - Portfolio: 4

    I'm here on Elance for full-time. I have 10 years SOLID experience in PHP, MYSQL, AJAX, jQuery, Wordpress, Bootstrap, API integration, HTML5, phpBB, osCommerce, Joomla, and other technologies. Right now i am willing to join as part time or contract based jobs and that can be further to full time and permanent based on company offer and understandings.

    $15.00 /hr
    1,549 hours
    4.91
  4. Andrii Ivanskiy

    Andrii Ivanskiy

    Administrator,DevOps,IT specialist

    Ukraine - Last active: 20 hours ago - Tests: 1 - Portfolio: 8

    I am IT specialist with over than 6 years of experience on Windows and OpenSource (Linux) based technologies. I have strong skills on networking, operations systems, network services and applications: - Operating Systems - Windows (Windows NT, 2000, 2003, 2008, 2008R2, 2012), Linux (CentOS, Fedora, Red Hat), FreeBSD - Networks - TCP/IP, routing, VPN, NAT, iptables - Infrastructure and services - Active Directory, DNS, DHCP, Exchange, Lync - Cloud computing - Microsoft Azure, AWS - Applications - SharePoint, SharePoint Online, Office 365 - Databases - MS SQL , MySQL - Virtualization - MS Hyper-V, Vmware, Virtual Box - Scripting - PowerShell, Bash - Internet Technologies and Programming - IIS, Apache, Nginx, HTML, CSS, PHP, C#, ASP.NET, MVC

    $22.22 /hr
    47 hours
    4.85
  5. Geza Akocsi

    Geza Akocsi

    Windows system and network administration, web development

    Hungary - Last active: 6 days ago - Tests: 4 - Portfolio: 1

    In the last 3 years I'm working as consultant, developer and system administrator in introduction of document management projects based on ELO system. (<a href="<a href="http://www.odesk.com/leaving_odesk.php?ref=http%3A%2F%2Fwww.elo.com"";;;; target="_blank">http://www.odesk.com/leaving_odesk.php?ref=http%3A%2F%2Fwww.elo.com"</a>;;;;; title="You are about to go to a URL outside odesk.com"><a href="http://www.odesk.com/leaving_odesk.php?ref=http%3A%2F%2Fwww.elo.com";;;; title="You are about to go to a URL outside odesk.com">http://www.elo.com</a></a>)I have 15 years of experience in system management in small business area. (Windows based servers and workstations, network planning and management.)In last five years I have designed and developed some websites from scratch, including areas of e-commerce and web-based business management.I have a lot of practice in remote management and it is my new tendency in my support field.

    $11.11 /hr
    17 hours
    4.81
  6. Sergey Zabolotnikov

    Sergey Zabolotnikov

    Network Administrator

    Russia - Last active: 2 days ago - Tests: 5 - Portfolio: 2

    Hello! My name is Sergey Zabolotnikov. I believe my strong points are my Productivity and Punctuality. My #1 goal will always be to meet your needs and deadline. I'm honest and fair. Since 2004, I'm IT infrastructure administrator at company about 100 employees. Also from 2012 I set up and deploy web-hosting and cloud services. I have a Bachelors in Automation and Software Engineering from South Ural State University in Russia. Listed below are my experience and skills. - Network technologies: TCP/IP stack, VLAN, QoS, LLDP, STP. Network traffic routing, shaping, firewalling based on Linux and FreeBSD. - OS: Linux, Windows, FreeBSD; - LAMP stack, Parallels PLESK Panel, cPanel/WHM, PostgreSQL; - Web-hosting security problems analysis; - Zabbix monitoring system; - Zimbra, Qmail, Exim, Postfix; - Mass email sending systems, email deliverability problems. - Active Directory, Group policy, RDP services, Microsoft SQL server; - DNS, DHCP, PXE, RIS; - Shell scripting and automation on Windows and Linux platforms; - Manual and how-to's creation. Work fast, precisely and attentively. Document all changes to production system. I can create detailed manual for customers to reproduce my work for project by himself.

    $10.00 /hr
    46 hours
    5.00
  7. Jason Swearingen

    Jason Swearingen

    Node.Js + AngularJs Full-Stack Web Dev / Quantitative Trading R&D

    United States - Last active: 20 hours ago - Tests: 1 - Portfolio: 4

    === Core strength === Applied Problem Solving. I have professional experience across the spectrum, ranging from realtime simulation architecture to business planning. From assert-driven-development, to quantitative trading. === Peak Interests: Node.Js + AngularJS === I am mostly interested in JavaScript applications right now. I spent the last 1.5 years on Full-Stack Javascript Technologies: Typescript + Angular.js + NodeJs + Bootstrap. You can see the result here: https://PhantomJsCloud.com === Other Interests: Algorithmic Securities Trading === I have a great deal of experience with the Quantopian.com online trading platform, and some experience with Multicharts.NET for doing algorithm R&D. While I am not a professional trader, I have experience working with domain experts and can help you implement and backtest your trading algorithm. === Methodologies === I'm a firm believer in MVP's and validated learning. While this is often applicable to programming, the principle can be applied widely. === Etc === I ran a startup (Novaleaf.com) for 7 years and so have extensive experience with the broad spectrum of professional skills required to get things done. My full CV is available upon request.

    $60.00 /hr
    533 hours
    5.00
  8. Marius V.

    Marius V.

    Certified Systems Engineer

    Romania - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    I am a System Administrator focused on Microsoft products with 8+ years of professional experience on IT companies. I have extensive experience installing, configuring, administering and maintaining operating systems (Windows Server 2003, 2008, 2012) and services like AD, DNS, DHCP, WDS, Hyper-V, Exchange, SCCM, SCOM. Time spent working in this area has allowed me to achieve knowledge and improve my skills in computing that would make me well suited to assist you in accomplishing your goals. I work methodically and efficiently to insure that my partner is satisfied with the end result and the cost of job is well justified.

    $25.00 /hr
    127 hours
    4.97
  9. Monis Rizvi

    Monis Rizvi

    Experienced Remote Technical and Live Chat Support, Ticket Support.

    Pakistan - Last active: 20 hours ago - Tests: 4

    With more than 2 years of experience in customer service and technical support via live chat and tickets, I'm confident in my ability to find an amiable solution to any challenge I may encounter. As a self-motivated and determined person, with a strong capacity for learning, I thrive in virtual work environments - taking on new challenging and multi-tasking with ease. I've worked hard to foster strong working relationships and if I don't immediately have an answer to a question, I definitely have the skills and resources to know where to find it. As a naturally empathetic person with a solutions oriented attitude, I am able to relate to customers; helping them to feel comfortable and understood, while finding the appropriate solution for all parties involved. I am known for my commitment, superior work ethics, attention to detail and excellence in customer care.

    Groups: Microsoft Certified Professionals

    $6.67 /hr
    2,600 hours
    4.95
  10. Lakshman Singh

    Lakshman Singh

    Cisco Voice Expert

    India - Last active: 6 days ago - Tests: 3 - Portfolio: 1

    *Cisco Voice/UC Consultant (CCIE-VOICE, CCNP-VOICE/CCVP) having more than 5.5 years of extensive experience in Cisco Installations/deployment, Support, Presales, Postsales, Training, Documentation. *I have deployed a Cisco UC (CUCM, CME, CUC, CUPS, ISRG2 Routers, VCS-C, VCS-E, UCCX, Jabber etc.) cluster of 2000 IP Phones alone. *I have designed and deployed 5 Cisco BE6000 / BE6K and BE7000 / BE7K Solutions *I have worked in Cisco TAC, have vast experience in troubleshoot. *I have worked in Presales, knowledgeble about Licensing, Ordering, RMA etc. CERTIFICATION(S) : CCIE-VOICE (written) | CCNP-VOICE/CCVP | CCNA-VOICE | CCDA | CXFS | CCNA & CCENT SERVICES OFFERED : 1. CUCM (Cisco Unified Communications Manager) 2. CUC (Cisco Unity Connection) 3. CUPS (Cisco Unified Presence Server) 4. UCCX (Unified Contact Center Express) 5. CME (Cisco Unified Communications Manager Express) 6. CUE (Cisco Unity Express) 7. VCS (Video Communications Server) 8. Cisco Telepresence / Tandberg (For Video Conferencing) 9. Cisco Jabber 10. Cisco Voice Gateway / Router (29xx, 39xx etc.) 11. Cisco Switches (PoE and Non PoE) 12. Integration of Cisco Devices 13. Analog Voice Gateways 14. Cisco BE6K / BE6000 15. UCS Servers 16. UC520 / UC500 17. MPLS, Frame Relay, PPP

    $40.00 /hr
    4 hours
    5.00