I am a certified Linux administrator having more than 8 years of experience with administration hosting provider’s Linux-based servers (more than 100), setup, implementation, life support Web, Mail, VPN, DNS, analyze and protect from network attacks (DDoS, intrusion); Monitoring network and servers health (Zabbix, Nagios, Cacti, Munin); Web servers using Apache/NGINX, configure clusters with Haproxy, DB servers MySQL community, MariaDB, Percona. Virtualization (VMware); Modernization and implementation new technical solutions, security policy. Google Pagespeed Website Migration Backups Installation, configuration and troubleshooting: VPN (OpenVPN), Git (Gitlab), Mail (Postfix, Dovecot), DNS/BIND9, DHCP,Samba, NFS, NIS, SQUID, HAProxy, Varnish, Owncloud Fail2ban, Mod-Evasive for network intrusion prevention; Shorewall , Iptables chains & rules Content Delivery Networks (CDN) I am always interested in new projects and look forward to speaking with you about how can we work together