CPAN問題「運氣不好......還是失敗了」

Question

在配置CPAN與o conf init：我收到以下錯誤：

If you're accessing the net via proxies, you can specify them in the 
CPAN configuration or via environment variables. The variable in 
the $CPAN::Config takes precedence. 

Your ftp_proxy? [n] 
Your http_proxy? [n] 
Your no_proxy? 

If your proxy is an authenticating proxy, you can store your username 
permanently. If you do not want that, just press RETURN. You will then 
be asked for your username in every future session. 

Your proxy user id? 
Your /root/.cpan/sources/MIRRORED.BY is older than 60 days, I'm trying to fetch one 
CPAN: LWP::UserAgent loaded ok 
Fetching with LWP: 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY 

Use of uninitialized value in hash element at /usr/lib/perl5/vendor_perl/5.8.8/LWP/Protocol.pm line 55, <STDIN> line 29. 

Use of uninitialized value in pattern match (m//) at /usr/lib/perl5/vendor_perl/5.8.8/LWP/Protocol.pm line 58, <STDIN> line 29. 

Use of uninitialized value in concatenation (.) or string at /usr/lib/perl5/vendor_perl/5.8.8/LWP/Protocol.pm line 38, <STDIN> line 29. 

Use of uninitialized value in string eq at /usr/lib/perl5/vendor_perl/5.8.8/LWP/UserAgent.pm line 195, <STDIN> line 29. 

Fetching with LWP: ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY.gz 
Use of uninitialized value in hash element at /usr/lib/perl5/vendor_perl/5.8.8/LWP/Protocol.pm line 55, <STDIN> line 29. 

Use of uninitialized value in pattern match (m//) at /usr/lib/perl5/vendor_perl/5.8.8/LWP/Protocol.pm line 58, <STDIN> line 29. 

Use of uninitialized value in concatenation (.) or string at /usr/lib/perl5/vendor_perl/5.8.8/LWP/Protocol.pm line 38, <STDIN> line 29. 

Use of uninitialized value in string eq at /usr/lib/perl5/vendor_perl/5.8.8/LWP/UserAgent.pm line 195, <STDIN> line 29. 

CPAN: Net::FTP loaded ok 
Fetching with Net::FTP: 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY 
Fetching with Net::FTP 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY.gz 

Trying with "/usr/bin/links -source" to get 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY 
ELinks: Host not found 

Trying with "/usr/bin/links -source" to get 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY.gz 
ELinks: Host not found 

Trying with "/usr/bin/wget -O -" to get 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY 
--2013-02-04 00:37:43-- ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY 
Resolving n... failed: Temporary failure in name resolution. 
wget: unable to resolve host address `n' 

Trying with "/usr/bin/wget -O -" to get 
    ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY.gz 
--2013-02-04 00:37:43-- ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY.gz 
Resolving n... failed: Temporary failure in name resolution. 
wget: unable to resolve host address `n' 

Issuing "/usr/kerberos/bin/ftp -n" 
ftp: ftp.oss.eznetsols.org: unknown host 
Not connected. 
Local directory now /root/.cpan/sources 
Not connected. 
Not connected. 
Not connected. 
Not connected. 
Bad luck... Still failed! 
Can't access URL ftp://ftp.oss.eznetsols.org/cpan/MIRRORED.BY. 

Please check, if the URLs I found in your configuration file 
(ftp://ftp.oss.eznetsols.org/cpan/) are valid. The urllist can be edited. 
E.g. with 'o conf urllist push ftp://myurl/' 

Could not fetch MIRRORED.BY 
Trying to get away with old file: 
1238021 144 -rw-r--r-- 1 0  0   135245 Oct 3 02:42 /root/.cpan/sources/MIRRORED.BY 

好像代理髮行。

我試過以下的東西，但沒有成功。

1. 經過的ping [它的工作原理]
2. /etc/resolve.conf項： nameserver my IP address
3. 與添加代理服務器嘗試： o conf http_proxy http://proxy.mycorp.com:8080/

請讓我知道，如何處理這個問題。謝謝。

Answer 1

CPAN（無效）說FTP服務器出現故障。

$ wget ftp://ftp.oss.eznetsols.org 
--2013-02-03 20:51:09-- ftp://ftp.oss.eznetsols.org/ 
      => ‘.listing’ 
Resolving ftp.oss.eznetsols.org (ftp.oss.eznetsols.org)... 111.90.255.253 
Connecting to ftp.oss.eznetsols.org (ftp.oss.eznetsols.org)|111.90.255.253|:21... failed: Connection refused. 

也就是說FTP服務器不在list of CPAN mirrors存在，但你的鏡像列表已經過時。

嘗試使用不同的CPAN鏡像。例如o conf urllist shift http://cpan.pair.com/。