What is a TTL value?

Related questions

1. What do Traceroute results mean?
2. What does TTL expired in transit mean on a ping attempt?
3. What is the meaning of TTL in ping command?
4. Can you find someone's IP?
5. What is the command to trace an IP?
6. What is TTL exceeded?
7. What are hops in a Traceroute?
8. What is Destination host unreachable?

Tags

1. #which
2. #world
3. #86400
4. #record
5. #their
6. #common
7. #hours
8. #changed
9. #authoritative
10. #change
11. #older
12. #still
13. #after
14. #around
15. #units
16. #servers
17. #seconds
18. #could
19. #showing
20. #nameserver
21. #would
22. #cache
23. #value