apt-get 호스트 해결 오류

내 모든 apt-get 명령은 다음과 같은 내용으로 끝납니다.

Err http://security.ubuntu.com quantal-security Release.gpg
  Temporary failure resolving 'security.ubuntu.com'
Err http://rs.archive.ubuntu.com quantal Release.gpg
  Temporary failure resolving 'rs.archive.ubuntu.com'
Err http://rs.archive.ubuntu.com quantal-updates Release.gpg
  Temporary failure resolving 'rs.archive.ubuntu.com'
Err http://rs.archive.ubuntu.com quantal-backports Release.gpg
  Temporary failure resolving 'rs.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://rs.archive.ubuntu.com/ubuntu/dists/quantal/Release.gpg      Temporary failure resolving 'rs.archive.ubuntu.com'

W: Failed to fetch http://rs.archive.ubuntu.com/ubuntu/dists/quantal-updates/Release.gpg  Temporary failure resolving 'rs.archive.ubuntu.com'

W: Failed to fetch http://rs.archive.ubuntu.com/ubuntu/dists/quantal-backports/Release.gpg  Temporary failure resolving 'rs.archive.ubuntu.com'

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/Release.gpg  Temporary failure resolving 'security.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.

--fix-missing, update, autoremove ...를 시도했지만 문제가 유지됩니다.

linux ubuntu apt-get

— 이반 불로 비치
소스

DNS 구성이 작동합니까? 당신은 호스트 이름을 (같은 해결할 수 security.ubuntu.com로) dig?

— Der Hochstapler 23

ifconfig 스크린 샷을 제공해 주시겠습니까?

— 벤 플론 트

nslookup을 통해 주소 rs.archive.ubuntu.com 을 해결할 수 있습니까 ?

— jmreicha