1. Familiar with network protocols, basic network diagnostic tools, such as Ping, Nslookup, Tcpdump, Telnet, Tracter. 2. Familiar with Linux operating, system monitoring service; Can use Cacti and Zabbix to view system status data flexible. 3. Familiar with DNS configuration and DNS system distribution; Understand regional DNS distribution configuration; Familiar with domain name query. 4. Have a good foundation for language communication, Chinese is preferred. 5. Obey the superior leadership arrangements, and company's rules and regulations. 6. Have systematic monitoring experience, can be adapted to work priority night shift.