Lasantha Indika Amarasinghe

Lasantha Indika Amarasinghe

Linux System, Network and VOIP Engineer/Admin - more than 10 years

Colombo-10, Sri Lanka



What's the difference

I am having more than 15 years of Linux system and network administration, VoIP deployments, system integration.

My major expert areas are:

>>TCP/IP networking & Security :- Advanced ip routing, forwarding, filtering and firewall with Netfilter Iptables, TCP Wappers, Fail2Ban

>>Servers :- Sendmail, Postfix, Dovecot, Courier IMAP, Squirrelmail, Roud cube, BIND, Apache, Nginx, VSFTPD, DHCPD, Squid, Samba, Ziproxy(image compression proxy server), any open source or closed source software in the …


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Work History & Feedback

Freepbx, zoho and zoiper setup

3 hrs @ $22.22/hr
Earned $63
“It was great working with Lasantha, he is very experienced, easily available and very good in problem resolution. Will hire again.”


Message annoucement system for VoIP Carrier

Fixed Price $133
“Highly motivated, never gives up until things work as expected !! Excellent post development documentation, able to delivery on very short deadlines ! Highly recommended AA+++”


Migrate POP Emails from Earthlink to Hostgator

Fixed Price $56
“Great work. Was able to handle job with minimal supervision and in a very timely manner.”


enabling SSH in ubuntu 12.04 in HP proliant ML350p Gene8 Server

Fixed Price $22
“I would like to hire him to do many project with my company.”


RSync / Windows

Fixed Price $56
“Great provider; was helpful in getting us sorted out.”


Squid Proxy configuration for list of public ips

Fixed Price $167
“Excellent to work with!”


Tests Taken
Name Percentile Score

Redhat Linux 9.0 Admin Test


Redhat Linux 9.0 General Test


Voice Over IP Test


oDesk Readiness Test for Independent Contractors and Staffing Managers