NFS 로그

Jun  6 00:39:31 www portmap[621]: warning: cannot open /etc/hosts.allow: Permission denied
Jun  6 00:39:31 www portmap[621]: warning: cannot open /etc/hosts.deny: Permission denied
Jun  6 00:39:32 www portmap[30273]: connect from 210.223.231.141 to dump(): request from unauthorized host
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.allow: Permission denied
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.deny: Permission denied
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.allow: Permission denied
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.deny: Permission denied
Jun 15 07:04:38 www portmap[16916]: connect from 85.88.167.178 to dump(): request from unauthorized host
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.allow: Permission denied
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.deny: Permission denied
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.allow: Permission denied
Jun 15 07:04:38 www portmap[621]: warning: cannot open /etc/hosts.deny: Permission denied
Jun 15 07:04:38 www portmap[16917]: connect from 85.88.167.178 to dump(): request from unauthorized host

 NFS서버를 운영중입니다.

근데 최근들어 다음의 로그가 보이네요....

일단 NFS설정은 다음과 같습니다.

[root@www messagelog]# vi /etc/exports

/data   123.456.789.0(rw,root_squash,sync)

별다른 기능도 없고, 접속은 저희 회사 다른 서버 IP만 가능하게 되어 있는데, 다른 서버 IP로그가 계속보이는데, 이거 혹시 해킹일까요?