Work with high load, complex and large Internet projects. Experienced in DNS - BIND, Unbound, PowerDNS Mail services - Postfix, Sendmail, Dovecot, Spamassassin, ... Web services - Apache, lighttpd, Nginx, Squid, ... Network and security - Cisco manageable switches, iptables, ipfw, ... Databases - MySQL, PosrgreSQL, LDAP Monitoring - SNMP, Zabbix, Nagios, Cacti Languages - sh/bash, awk, Python, Perl, Golang