由于Group writable directory错误，我无法启动我的sendmail服务：
$ service sendmail start Starting sendmail: 451 4.0.0 /etc/mail/sendmail.cf: line 87: fileclass: cannot open '/etc/mail/local-host-names': Group writable directory 451 4.0.0 /etc/mail/sendmail.cf: line 596: fileclass: cannot open '/etc/mail/trusted-users': Group writable directory [FAILED] Starting sm-client: /etc/mail/submit.cf: line 552: fileclass: cannot open '/etc/mail/trusted-users': Group writable directory [FAILED]
但是，权限似乎是正确的：
/等等：
$ ls -ld /etc drwxr-xr-x. 93 root root 4096 Oct 17 14:23 /etc
在/ etc /邮件：
$ ls -ld /etc/mail drwx------ 2 root root 4096 Oct 19 16:43 /etc/mail
在/ etc /邮件/ *：
$ ls -ld /etc/mail/* -rw------- 1 root root 469 May 20 2009 /etc/mail/access -rw------- 1 root root 12288 May 5 18:11 /etc/mail/access.db -rw------- 1 root root 0 Jun 8 2014 /etc/mail/aliasesdb-stamp -rw------- 1 root root 233 Apr 12 2007 /etc/mail/domaintable -rw------- 1 root root 12288 May 5 18:11 /etc/mail/domaintable.db -rw------- 1 root root 5584 Nov 11 2010 /etc/mail/helpfile -rw------- 1 root root 64 Apr 12 2007 /etc/mail/local-host-names -rw------- 1 root root 997 Apr 12 2007 /etc/mail/mailertable -rw------- 1 root root 12288 May 5 18:11 /etc/mail/mailertable.db -rwx--x--x 1 root root 2700 May 20 2009 /etc/mail/make -rw------- 1 root root 92 May 20 2009 /etc/mail/Makefile -rw------- 1 root root 58439 Nov 11 2010 /etc/mail/sendmail.cf -rw------- 1 root root 7202 May 20 2009 /etc/mail/sendmail.mc -rw------- 1 root root 41521 Nov 11 2010 /etc/mail/submit.cf -rw------- 1 root root 941 Nov 11 2010 /etc/mail/submit.mc -rw------- 1 root root 127 Apr 12 2007 /etc/mail/trusted-users -rw------- 1 root root 1847 Apr 12 2007 /etc/mail/virtusertable -rw------- 1 root root 12288 May 5 18:11 /etc/mail/virtusertable.db
这里有什么问题？
什么是'/'的权限？