Chatur ratna S.
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Chatur ratna S.

Network & System Administration


Kathmandu, Nepal


To stay abreast with technologies related to Internet Protocol (IP), Network Technology and System Administration. **Technical Proficiencies** Unix/Windows systems and network administration are my primary interests. I have extensive experience with multiple UNIX-based / windows operating systems with an emphasis on Linux, FreeBSD and Solaris, Cisco networking hardware, system and network security, network design and unix backups. I use Perl / UNIX shell scripts on a regular basis for system administration tasks and am familiar with some C/C++, PHP, VB programming. While working for an Internet Service Provider, I have installed, configured and maintained various Open source software and services on Unix Platform to provide essential services ... moresuch as DNS, Mail, Proxy, Web, Database, Radius etc. I learn new concepts and systems quickly and am receptive to new ideas. I work well alone or in a group and also have self-learning capability. **Core Competencies** Network & Systems Administration & Security; Network Design; Wireless Network Planning; Data Integrity/Recovery; Disaster Recovery Planning; Contingency Planning; Research & Development **Platforms** UNIX (FreeBSD, Solaris), Linux (Red Hat, CentOS, Fedora, Ubuntu), Mac OS X, MikroTik RouterOS, Microsoft Windows operating systems from 95 on. **Networking** Cisco / BDCOM Router / Switches and IOS, Wireless LAN/WAN, WiFi Hotspot, TCP/IP, ISO/OSI, Ethernet, FDDI, VPN, PPPoE, DHCP, SSH, RIP, OSPF, BGP, policy routing, SNMP. **Languages** UNIX/Linux Shell Scripting, C, Basic, HTML, Perl, PHP. **Software** Mail (Qmail / MDaemon / Microsoft Exchange), DNS (BIND / MS-DNS), Proxy (Squid/ MS-ISA), Radius (FreeRadius / Internet Authentication Service (IAS)), Web(Apache / IIS), chillispot / coovachilli **Database Systems** MySQL Database **Security** Microsoft Internet Security & Acceleration (ISA) Server, FreeBSD IPFW / PF Firewall, Linux iptables Firewall **Bandwidth Management** FreeBSD IPFW based Bandwidth Management, Traffic Shaping with TC and HTB **Network Monitoring System** Nagios, MRTG / RRD / Cacti **Directory Service** Microsoft Active Directory, OpenLDAP **VoIP** Asterisk less

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Work History and Feedback

  • Jul 2010

    Asterisk Administrator
    $10.00 earned
    Fixed Price

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Name Score (out of 5) Time to Complete
Networking Server 2003 Test 2.75 Top 10% 26 mins
Networking XP Test 3.25 Top 10% 24 mins
Firewall Concepts Test 3.75 Top 30% 21 mins
Redhat Linux 9.0 Admin Test 3.25 Above Average 40 mins
Redhat Linux 9.0 General Test 4.50 Top 30% 23 mins
CISCO Test 3.75 Top 30% 37 mins
Networking Concepts Test 4.10 Top 20% 20 mins
TCP/IP Test 2.90 Above Average 34 mins
Windows XP Test 4.00 Top 10% 10 mins
Upwork Readiness Test for Independent Contractors and Company Managers 4.60 Above Average 5 mins