VoIP: 6 Years
Knowledge VoIP Technology.
Install and Administrator Asterisk system
Design and troubleshooting PBX VoIP System.
Knowledge ISDN Technology.
Design and Implement IVRs
Knowledge Avaya telephony System, NICE Recording System
Linux System: 5 Years
OS: Centos, Redhat, Opensuse, Ubuntu.
Install, Administrator, Maintenance:
Open source: SVN, Bind (DNS), PHP, MySql, Samba, Open VPN
Web server: HTTPD, Apache Tomcat, Nginx
Email: Devecot, Postfix
Virtual machine: XEN, KVM
VoIP: Asterisk, VOS3000 System
Balancer & Clustering: Tomcat balancer, LVS, Keepalives, HAProxy, Glusterfs
Knowledge Script
Troubleshooting and backup system
Knowledge VMWARE ESXi
Network Administrator: 3 Years
Administrator: WAN/LAN, Fiber Optic, VPN, Network Monitoring service, Security and Policy.
Implement: LAN, WAN Fiber Optic Network,
System Infrastructure: design and build up data center, Management data center, Clustering Mysql, Load balance system, High Availability