DNS server
A server that answers DNS questions. There are two kinds with different jobs. One takes questions from computers and phones, finds the answers and remembers them for a while; your internet provider or your organization's network usually supplies it (a caching DNS server, or resolver). The other holds the DNS records of particular domain names and gives the correct answers for them (an authoritative DNS server). When a DNS server stops, many people at once cannot reach sites or email, so DNS servers are frequent targets of DDoS attacks. In cache poisoning, an attacker makes a resolver remember a forged answer, so that everyone using it can be sent to a fake site.
More terms on this topic
- API (application programming interface)
- Augmented reality (AR)
- Cache / CDN
- Certificate authority (CA)
- Cloud service
- CMS (content management system)
- Data center
- Desktop app
- Device, USB and removable storage
- DNS (Domain Name System)
- DNS record
- Email, attachments and forms
- Firewall
- FTP / SFTP
- Hosting / rented server
- HTTPS
- MDM (mobile device management)
- Mobile app
- Network
- Network switch
- Operating system (OS)
- PDF / CSV
- PHP
- Remote access / RDP
- Router
- SaaS (software as a service)
- Server
- Social network / SNS
- Software defect
- Software, programs and apps
- Source code
- TLS
- URL, domain name and IP address
- VPN (virtual private network)
- Web application
- Web, website and home page