TCP/IP Freelancers

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TCP/IP Freelancers

Showing 340 freelancers

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Last updated: April 1, 2015

  • IT Technologist (Network, CCTV, Video Surveillance, IP Camera)

    I am an Talented and Experienced Network Engineer, sales engineer, physical security engineer (Alarm Systems, Access Control, and Video Surveillance), and communication specialist with over 20 years in the design, installation, configuration, administration and troubleshooting of networks, security systems, video … more

    I am an Talented and Experienced Network Engineer, sales engineer, physical security engineer (Alarm Systems, Access Control, and Video Surveillance), and communication specialist with over 20 years in the design, installation, configuration, administration and troubleshooting of networks, security systems, video surveillance (IP Cameras, Analog and HD-SDI camera systems). My primary language is English and I speak and read binary natively. I do live and breathe IP networking, I do not claim to know everything there is to know about Networking; however, I enjoy the work I do and I do my best to be as efficient and as useful as I can while always putting the client's interest before my own financial gains. I can provide consulting services and remote network engineering skills utilizing LAN infrastructure - Routers/Switches/Firewall, VLANS, LACP, PAgP,802.1q, RSTP, OSPF, BGP, Trunking, etc. WAN infrastructure - Point to Point DS3 (T3) and DS1 (T1) utilizing ATM and SONET Technology; DSL and cable modem Internet Backup links, Site to Site/Site to Mult-isite and Client to Site VPNs. Internet and intranet DNS - Domain Registration, Domain setup on Microsoft / Bind DNS servers, and troubleshooting DNS Related issues. - Domain delegations utilizing glue records and also setting up caching nameservers. Wireless: Mikrotik, Ubiquiti, and Motorola Point-to-Point and Point-to-Multipoint design, installation and configuration. Wireless RF planning of indoor and outdoor wireless networks utilizing heat maps for wifi coverage. Technology: I have a great deal of experience in various ISP (Co-location, Data Center, Internet Service Providers) technologies that focuses on managed services utilizing Juniper and Cisco Firewalls, Cisco, HP and Foundry Layer 2 and Multilayer switches, Cisco and Juniper Routers, Cisco and Foundry Load Balancing utilizing Content Switching and ServerIron Technology, and IP address optimization. IPv6: I can provide IPv6 support and consulting services on the creation of business plans, business cases, migration, transition, new installations, and upgrades to your existing IPv4 network. Security Solutions: Honeywell, 2GIG, GE, ITI, Alarm.com, Total Connect, Interactive services, IP CCTV, IP Surveillance, IP Camera, Alarm System and CCTV System design (Pre and Post Sales Support). CVE-2014-0160 - OpenSSL Heartbleed patching.  less

    dns firewalls apache-administration cisco-routers tcp-ip vpn cisco-asa computer-networking wireless-network-implementation network-security ipsec network-administration nagios ingress-filtering bgp ospf network-planning wireless-security security linux-system-administration windows-administration 00 more less
    • $45.00 HOURLY RATE
    • 5.0
    • 466 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 10 TESTS
  • Senior System Administrator, Security officer, Migration engineer, SSD

    YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY Specialties: Information Technology / Internet / IT Division / Computer security … more

    YOUR POSITIVE FEEDBACK IS THE HIGHEST AWARD FOR ME ;) Will do my best to assist you in any questions and tasks you may have =) Here is some info about my experience. SUMMARY Specialties: Information Technology / Internet / IT Division / Computer security/ Internet Services / System Administration/ Webmaster Support / Web Analysis/ SEO / SEM / Internet Marketing Web hosting services (SSD hosting solutions) EXPERIENCE: d(-_-)b Linux/Windows system administrator, Operations team EuroVPS/WebDomSolutions January 2012 - May 2013 Greece, Athens Responsibilities: - Tickets; - System administration and monitoring. Theoretical and practical skills: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, OpenVZ, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS, redmine; - Control panels: Plesk, WHM Cpanel. - Database Administration: SQL Server, MySQL, MariaDB ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <( -'.'- )> freelancer SEO freelance October 2010 - March 2012 (1 years 6 months) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ o(^_^)o System Administrator / Techsupport Webintellects/Webhostgian/Jumpline/Webdomsolutions November 2010 - March 2012 (1 year 5 months) US, Ohio Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Operating Systems: * RedHat/CentOS,Fedora * Windows server 2003/2008 * VPS setup and configuration (Parallels Virtuozzo Containers); Advanced theoretical and practical skills in such areas: - Operating Systems: RedHat/CentOS/Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ b(^_^)d Internet Marketing Specialist || Web Analyst DCoM Soft, Inc. December 2009 – August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics - Information architecture and Web site content planning - Research of partners - Internet Market Research - Research Usability Design - Online promotion of company's web-based products Skills: - Search Engine Optimisation (SEO) - Paid online Marketing / Pay per Click Management (PPC) - SEO Copywriting/Editing - Social Media Optimization and Marketing (SMO/SMM) - Experience running USA-targeted social Marketing - Writing press releases - Social networking (Twitter, Facebook, Google follow etc) - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \(^_^)/ Customer Relations Representative || Advanced Technical Agent Ecommerce, Inc. May 2007 – October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Basic theoretical and practical skills in such areas: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3).  less

    wordpress plesk cpanel joomla nginx php centos nagios mysql network-administration security atlassian-confluence virtuoso openvz vmware-administration fedora ubuntu bash seo sem ftp exim qmail postfix ssl linux-system-administration lamp-administration database-administration windows-administration project-management virtual-assistant tcp-ip internet-marketing network-security google-analytics redhat-administration css unix-system-administration unix-shell virus-removal apache-administration phpmyadmin red5 00 more less
    • $34.88 HOURLY RATE
    • 5.0
    • 1177 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 16 PORTFOLIO ITEMS
    • 20 TESTS
  • MCPD - C#.NET/ASP.NET/SQL Server Developer

    I have been working for two different companies over the last 5 years mostly as a freelance developer. My expertise lies in data driven applications specially in the area of web development, although I have experience doing other types of … more

    I have been working for two different companies over the last 5 years mostly as a freelance developer. My expertise lies in data driven applications specially in the area of web development, although I have experience doing other types of applications such as desktop applications, and retributed components. I also have a vast experience developing SQL Server solutions and integrated .NET solutions.  less

    asp.net sql ajax telerik wcf html xml umbraco iis c# javascript rest linq website-development paypal-api paypal-integration microsoft-silverlight .net-framework ado.net .net-compact-framework microsoft-excel microsoft-word microsoft-access web-content-management xml-web-services spanish microsoft-visual-studio mysql t-sql sqlite linq-to-sql database-management business-analysis information-architecture architectural-design software-testing database-testing css css3 xhtml psd-to-html html5 ssl tcp-ip database-modeling ecommerce-consulting data-analysis database-administration database-programming database-design 00 more less
    • $22.22 HOURLY RATE
    • 4.2
    • 1455 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 9 TESTS
    GROUPS:
  • Senior software developer

    I am a professional software developer, working as a freelancer since 1987. My primary programming languages comprise C++, Java, SQL and various scripting languages (shell, perl, awk, ...). My skills also include both front end (HTML, CSS, Javascript, jQuery) and back … more

    I am a professional software developer, working as a freelancer since 1987. My primary programming languages comprise C++, Java, SQL and various scripting languages (shell, perl, awk, ...). My skills also include both front end (HTML, CSS, Javascript, jQuery) and back end web development (PHP, JSP, Java servlets). I have done projects on my own, in small teams of 2-4 developers, and in large teams as well.  less

    c++ c java sql php jsp mysql perl unix-shell bash regular-expressions lisp html css javascript jquery xml xpath xslt git tcp-ip apache-administration lamp-administration software-debugging german translation translation-english-german 00 more less
    • $45.00 HOURLY RATE
    • 5.0
    • 39 HOURS
    • GERMANY
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 33 TESTS
  • IT Professional

    Over 9 years of experience in IT support, networks and system administration. Currently providing remote and onsite support to clients in North America, UK, Sydney, Dubai, Canada and Pakistan. Hands on experience on the following tool and technologies Windows Server … more

    Over 9 years of experience in IT support, networks and system administration. Currently providing remote and onsite support to clients in North America, UK, Sydney, Dubai, Canada and Pakistan. Hands on experience on the following tool and technologies Windows Server 2003-2012 - DNS, DHCP, AD, NAP, ADMT, FSMO, SSO, GPO, SMTP, IIS, WDS, WSUS, TS, Fax, File, Print, Migration Exchange Server 2003-2013 - HA, DAG, DAC, Defragmentation, Migration SharePoint Server 2007-2013 - Document site System Center Essentials 2012: SCCM, SCOM, SCVMM, SCDPM Lync 2010-2013 Windows Azure - AD Office 365 Forefront TMG and UAG Office 2003/2007/2010/2013 Hyper-V Citrix XenApp, Citrix XenDesktop, Citrix VDI-in-a-Box, Citrix XenServer VMWare ESX/Vsphere, Vcenter  less

    windows-7-administration microsoft-active-directory tcp-ip dhcp dns windows-8-administration network-administration 00 more less
    • $22.00 HOURLY RATE
    • 4.6
    • 7270 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Expert UNIX and network administrator

    My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD, solaris and Windows Server - proficient Cloud services: AWS, Rackspace Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Monitoring: Nagios … more

    My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD, solaris and Windows Server - proficient Cloud services: AWS, Rackspace Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Monitoring: Nagios, Zabbix, Monit, Munin, Cacti Virtualization: Vmware ESXi/server, Citrix, Proxmox Mail servers: Exim, Sendmail, Dovecot, postfix, Zimbra Backups: Bacula, duplicity Other: standard network services (DNS, DHCP, LDAP, Samba, http proxy, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding, bgp, ospf, infiniband).  less

    linux-system-administration bgp tcp-ip cpanel whm network-administration voip-administration voip-software nginx postfix 00 more less
    • $16.67 HOURLY RATE
    • 4.7
    • 39 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
  • PhD in Computer Science

    If you are stuck and the deadlines are near. If you need the job done fast - send me a message! I have 20 years experience leading Software Design and Software Development teams. I am results-driven, customer-focused, analytical Software Engineer. I … more

    If you are stuck and the deadlines are near. If you need the job done fast - send me a message! I have 20 years experience leading Software Design and Software Development teams. I am results-driven, customer-focused, analytical Software Engineer. I am strong in design, integration and problem solving skills. I have worked in various programming languages and platforms including social networking. I follow SDLC lifecycle process and methodologies. The end product is always highly scalable solution. http://githelp.us/  less

    postgresql php mysql tcp-ip data-structures cisco-ios cisco-routers database-modeling database-management microsoft-access firebird interbase jquery html html5 unix-shell database-programming sql t-sql virtualization javascript yii-framework linux-system-administration network-administration database-testing perl bash vpn selenium netbeans human-resource-management project-management windows-azure microsoft-project facebook-api amazon-ec2 amazon-web-services amazon-s3 phpmyadmin ajax saas venture-capital-consulting process-architect information-architecture information-design amazon-rds strategic-planning marketing-strategy couchdb startup-consulting business-valuation bgp hadoop data-mining machine-learning genetic-algorithms algorithms redis mongodb memcached database-administration database-design redmine artificial-intelligence management-development 00 more less
    • $70.00 HOURLY RATE
    • 5.0
    • 1535 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 13 TESTS
    GROUPS:
  • System Administrator / DevOps

    12+ years of experience in administration of servers powered by the Linux and FreeBSD operating systems. Full time independent contractor during the last 4 years. * CentOS, Debian, RHEL, Ubuntu; FreeBSD, OpenBSD * AWS, Digital Ocean, Hetzner, Linode * Ansible * Apache, lighttpd, nginx … more

    12+ years of experience in administration of servers powered by the Linux and FreeBSD operating systems. Full time independent contractor during the last 4 years. * CentOS, Debian, RHEL, Ubuntu; FreeBSD, OpenBSD * AWS, Digital Ocean, Hetzner, Linode * Ansible * Apache, lighttpd, nginx, uWSGI * MySQL, MariaDB, PostgreSQL * Postfix, Dovecot, Postgrey, SpamAssassin, ClamAV, OpenDKIM * Docker, KVM, libvirt, LXC, OpenVZ, Vagrant, VirtualBox, Xen, FreeBSD jails * DNS: BIND, NSD, PowerDNS * LVM, DRBD, Heartbeat * Load balancing: haproxy, keepalived, nginx * Quagga, Open vSwitch, iptables, ipfw, pf, bonding, bridging * VPN: StrongSwan, OpenVPN, Racoon * Sensu, Nagios, Munin, SmokePing, Monit, Collectd * SAN: HP MSA, IBM DS * Backups: duplicity, rsnapshot, bacula * Python (Boto, Django, Scrapy), Ruby, shell, PHP * cPanel/WHM, WHMCS (designed and developed from scratch a registrar module for an unsupported domain registry)  less

    python devops linux-system-administration amazon-ec2 unix-system-administration firewalls mysql network-administration tcp-ip unix-shell 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 1580 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 11 TESTS
  • Senior software developer (C/C++)

    I am always looking for challenging tasks to accomplish. I have wide experience in developing, designing and managing projects with variety of technologies. Ten years ago I've entered IT industry as a C++ developer. Since then I have accomplished … more

    I am always looking for challenging tasks to accomplish. I have wide experience in developing, designing and managing projects with variety of technologies. Ten years ago I've entered IT industry as a C++ developer. Since then I have accomplished number of projects from small desktop applications to big enterprise systems. Now I have considerable experience in C++,Java,C#, in variety of scripting languages and databases.  less

    c++ c stl boost socket-programming winsock mysql odbc activex mfc forex-trading .net-framework win32-app-development java com dcom microsoft-access vba vbscript openvpn smtp tcp-ip 00 more less
    • $34.00 HOURLY RATE
    • 5.0
    • 3180 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 5 TESTS
  • Senior Cloud Specialist, DevOps/SysAdmin

    Proud to be a problem solver, high level Unix/Linux expertise, a very fanatical Cloud SysAdmin with horizontal mentality and heavy DevOps culture. I am research oriented, self motivated and I feel comfortable when I take new challenges, I like … more

    Proud to be a problem solver, high level Unix/Linux expertise, a very fanatical Cloud SysAdmin with horizontal mentality and heavy DevOps culture. I am research oriented, self motivated and I feel comfortable when I take new challenges, I like the CI environments and I love working under pressure. Core skills: FreeBSD, Solaris, Linux, pfSense, Mikrotik, Capistrano, CFEngine, Chef, Asterisk, Tropo, Twilio, EJabberd, Xen, Proxmox, vmware, OpenStack, OpenNebula, AWS, Joyent, RackSpace, HP-Cloud, OpenVz, Varnish, Nginx, Lighttpd, Apache, Yaws  less

    devops unix-system-administration wireless-network-implementation tcp-ip voip-administration amazon-web-services software-testing mysql capistrano 00 more less
    • $133.33 HOURLY RATE
    • 5.0
    • 1373 HOURS
    • PANAMA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 13 TESTS
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