All email delivery and spam marking solutions, PCI compliance, Linux Monitoring and Security hardening. Linux WebServer setup.
I can deploy Linux infrastructure in Amazon, Digitial Ocean, Google compute, Vultre and other Cloud provides.
Intrusion detection system in Linux, Central Logging server, Central Repository server, Monitoring systems (Zabbix, Sensu and Nagios), Zimbra Email server, WAF (Web Application Firewall) implementation and other Linux solutions.