✔ System administrator for DNS and web-servers
✔ Administration of network equipment and technologies TCP / IP, DNS, DHCP, FW, LEMP, IMAP, SMTP, SSL, HTTP/S
✔ Configuring FireWall iptables, AppArmor, SELinux, etc.
✔ Ansible, bash, etc.
✔ Cybersecurity
✔ SSL certs Let's Encrypt/Zero SSL