Monitoring & Log management:
* Nagios core, Nagios XI, OMD (Thruk/Nagvis), NRPE scripting
* Logstash, Kibana4, Elasticsearch
Cloud & Virtualization:
* VMWare, XenServer, LXC, Qemu-KVM, OpenVZ
* Amazon EC2, VPC, S3; Google Apps
Languages:
* Php, Bash/Shell scripting, Python, RegExp
Web - LAMP:
* Apache, Nginx, Vsftpd, Squid Proxy, HA proxy, MySQL, PHP
Mail:
* Kerio connect, Zimbra, Postfix, Gmail for Business
Other:
* OpenLDAP, OpenVPN, OpenSSL, Ansible
Linux Distro:
* Novell SLES, Ubuntu, RedHat, CentOS, Amazon AMI
VOIP SPECIALITIES:
* Integration of Legacy-PBX and Open Source IP-PBX technologies
* Asterisk AGI and Manager development
* VoIP services monitoring (also developing custom modules)
* VoIP network design and assessment
* Unified Communication systems
* VoIP Gateways
* Presence and IM server
* Fax Over IP solutions
* SMS gateway and email2sms services