os : Red Hat 7.1
lan card : intel 82559(100M)
 linux 를 dns 테스트 서버로 사용하다가
갑자기 작동되지 않아 서버를 확인한 결과
네이트웍이 작동되지 않았으며 제부팅을 하였으나
하단의 로그(boot.log, messages)와 같이
lo와 eth0 가 실패하였습니다.
 여기저기 게시판을 확인하여 간단한 처리를 해 보았으나
네트웍이 작동이 되지 않아
이렇게 글을 올리게 되었습니다.
 무슨 답변이라도 좋으니 리플좀 부탁드립니다.
  == /var/log/boot.log   메세지 ==
Aug 21 15:32:17 nns ifup: sh: pipe error: Too many open files in system
Aug 21 15:32:18 nns ifup: SIOCADDRT: No such device
Aug 21 15:32:22 nns ifup: sh: /usr/lib/libc/libifc: Too many open files
in system
Aug 21 15:32:22 nns ifup: sh: /bin/egrep: Too many open files in system
Aug 21 15:32:22 nns ifup: /bin/egrep: error while loading shared
libraries: libc.so.6: cannot load shared object file: Error 23
Aug 21 15:32:23 nns network: Bringing up interface lo:  succeeded
Aug 21 15:32:31 nns ifup: sh: pipe error: Too many open files in system
Aug 21 15:32:31 nns ifup: SIOCADDRT: No such device
Aug 21 15:32:31 nns ifup: SIOCADDRT: Network is unreachable
Aug 21 15:32:36 nns network: Bringing up interface eth0:  succeeded
........
  == /var/log/messages  메세지 ==
Aug 21 15:32:10 nns sysctl: net.ipv4.ip_forward = 0
Aug 21 15:32:10 nns network: Disabling IPv4 packet forwarding:  succeeded
Aug 21 15:32:10 nns sysctl: net.ipv4.ip_forward = 1
Aug 21 15:32:10 nns sysctl: net.ipv4.conf.all.rp_filter = 1
Aug 21 15:32:10 nns sysctl: kernel.sysrq = 0
Aug 21 15:32:10 nns network: Setting network parameters:  succeeded
Aug 21 15:32:17 nns ifup: sh: pipe error: Too many open files in system
Aug 21 15:32:18 nns ifup: SIOCADDRT: No such device
Aug 21 15:32:22 nns ifup: sh: /usr/lib/libc/libifc: Too many open files
in system
Aug 21 15:32:22 nns ifup: sh: /bin/egrep: Too many open files in system
Aug 21 15:32:22 nns ifup: /bin/egrep: error while loading shared
libraries: libc.so.6: cannot load shared object file: Error 23
Aug 21 15:32:23 nns network: Bringing up interface lo:  succeeded
Aug 21 15:32:31 nns ifup: sh: pipe error: Too many open files in system
Aug 21 15:32:31 nns ifup: SIOCADDRT: No such device
Aug 21 15:32:31 nns ifup: SIOCADDRT: Network is unreachable
Aug 21 15:32:36 nns network: Bringing up interface eth0:  succeeded