#compsci 

[[DNS]] records are files that live in authoritative DNS servers and provide info about a domain, including what IP address is associated with it

All DNS records have a TTL - time to live - the time it takes for a DNS server to refresh that record
## Common DNS record types
### A record
![[Pasted image 20260505184834.png]]

### AAAA record
![[Pasted image 20260505184852.png]]

### CNAME record
![[Pasted image 20260505184912.png]]

### MX record
![[Pasted image 20260505185004.png]]

### TXT record
![[Pasted image 20260505185017.png]]

### NS record
![[Pasted image 20260505185028.png]]

### SOA record
![[Pasted image 20260505185242.png]]


### SRV record
![[Pasted image 20260505185345.png]]
![[Pasted image 20260505185406.png]]

### PTR record
![[Pasted image 20260505185436.png]]
![[Pasted image 20260505185509.png]]![[Pasted image 20260505185523.png]]