System Administrator with 20+ years of experience. Managing heterogeneous AD based network, that also includes non-MS servers. Experienced in FreeBSD and different flavors of Linux (CentOS, Ubuntu, Debian). Proficient with MS AD, Exchange, BIND, DHCPD, Postfix, Dovecot, State-full Packet Inspection, Firewall techniques (ISA, TMG, PF, IPFW, iptables). Virtualizaion platforms (Hyper-V, Vmware, XenServer, Proxmox). Microsoft and Cisco certified since 2003. Apple certified since 2015, Certified Ethical Hacker since 2018
MCP, MCSA, CCNA Security, MacOSX 10.10 ACSP, MacOSX 10.10 ACTC, CEH
Skype ID: avetpetr