在 RHEL 上安装 bugzilla 时，它会检查所需的模块：
./checksetup.pl --check-modules
它显示了一些不可用的模块。
在尝试安装其中一个时，我遇到了以下错误：
[root@localhost bugzilla-4.2.3]# /usr/bin/perl install-module.pl DateTime
Checking for CPAN (v1.81) ok: found v1.94
**Checking for YAML (any) not found**
Checking for ExtUtils-MakeMaker (v6.31) ok: found v6.55_02
CPAN: Storable loaded ok (v2.20)
CPAN: LWP::UserAgent loaded ok (v5.833)
CPAN: Time::HiRes loaded ok (v1.9721)
Warning: no success downloading '/root/.cpan/source/authors/01mailrc.txt.gz.tmp19575'.
Giving up on it. at `/usr/share/perl5/CPAN/Index.pm line 225`
Fetching with LWP:
http://www.perl.org/CPAN/authors/01mailrc.txt.gz
LWP failed with code[500] message[Can't connect to www.perl.org:80 (Bad hostname 'www.perl.org')]
Trying with "/usr/bin/curl -L -f -s -S --netrc-optional" to get "http://www.perl.org/CPAN/authors/01mailrc.txt.gz" :
curl: (6) Couldn't resolve host 'www.perl.org'
Function system("/usr/bin/curl -L -f -s -S --netrc-optional "http://www.perl.org/CPAN/authors/01mailrc.txt.gz" > /root/.cpan/source/authors/01mailrc.txt.tmp19575")returned status 6 (wstat 1536)
Warning: expected file [/root/.cpan/source/authors/01mailrc.txt.gz.tmp19575] doesn't exist
Trying with "/usr/bin/wget -O /root/.cpan/source/authors/01mailrc.txt.tmp19575" to get<some URL>
--2012-09-24 17:29:33-- <some URL>
Resolving www.perl.org... failed: Name or service not known.
wget: unable to resolve host address “www.perl.org”
Function system("/usr/bin/wget -O /root/.cpan/source/authors/01mailrc.txt.tmp19575 "some URL ")
returned status 4 (wstat 1024)
Warning: expected file [/root/.cpan/source/authors/01mailrc.txt.gz.tmp19575] doesn't exist
Warning: no success downloading '/root/.cpan/source/authors/01mailrc.txt.gz.tmp19575'.
Giving up on it. at /usr/share/perl5/CPAN/Index.pm line 225
谁能帮我吗？
万分感谢！