DNS expert

Location: 100% Remote Contract W2 Job details: In-Depth DNS Knowledge: Understanding of DNS fundamentals, including how DNS queries and responses work, types of DNS records (A, AAAA, CNAME, MX, TXT, SRV, etc.), and DNS hierarchy (root servers, TLDs, authoritative servers).Knowledge of DNS protocols and standards, such as DNSSEC (DNS Security Extensions).DNS Server Configuration and Management: Experience with configuring and managing DNS servers like BIND, Microsoft DNS, PowerDNS, Unbound, and other DNS software. Knowledge of DNS server roles and functionalities, such as master/slave configurations, forwarders, and caching. Network Protocols and Services: Proficiency in networking fundamentals, including TCP/IP, UDP, DHCP, and HTTP.Understanding of related protocols like HTTP/3, DNS over HTTPS (DoH), and DNS over TLS (DoT).Security: Familiarity with DNS security practices, including DNSSEC implementation, DDoS protection, and mitigation techniques. Understanding of potential DNS vulnerabilities and threats, such as cache poisoning, spoofing, and amplification attacks. Monitoring and Troubleshooting: Skills in using tools for DNS monitoring and troubleshooting, such as dig, nslookup, tcpdump, Wireshark, and DNS-specific monitoring tools.