缺省的，用户邮件放在()。

A.ping

B.init

C.telnet

D.netstat

A.md5

B.tar

C.crypt

D.md5sum

A.NFS

B.DNS

C.NIS

D.routing

A.管道

B.分级文件系统

C.字符型处理器

D.shell

A.Turbo linux

B.AT&TBell Laboratry

C.University ofHelsinki

D.Linus Torvalds

A.echo$HOME

B.echo$USERDIR

C.echo$ECHO

D.echo$ENV

A./etc/httpd

B./var/www/html

C./etc/home

D./home/httpd

A.GROUP和LLTO

B.DIR和COID

C.GRUB和LILO

D.以上都不是

A.adduser-u:200-g:1000-h:/home/user01user01

B.adduser-u=200-g=1000-d=/home/user01user01

C.useradd-u200-g1000-d/home/user01user01

D.useradd-u200-g1000-h/home/user01user01

A.rpm-Vcpostfix

B.rpm-qpostfix

C.rpm--change logpostfix

D.rpm-q—change logpostfix