perl: warning: Setting locale failed.不能上网，也不能远程连接数据库

[weihua2008]

17:29][root@linux perl-5.8.8]# perl -v
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "en_US.UTF"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

This is perl, v5.8.8 built for i686-linux
……

这个问题怎么解决呢？