大家帮我看看yum的问题

killer5757

[lq@localhost ~]$ sudo yum install mplayer
Loading "installonlyn" plugin
Setting up Install Process
Parsing package install arguments
http://rpm.livna.org/fedora/7/i386/repodata/repomd.xml: [Errno 12] Timeout: <urlopen error timed out>
Trying other mirror.
http://livna.cat.pdx.edu/fedora/7/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (101, '\xe7\xbd\x91\xe7\xbb\x9c\xe4\xb8\x8d\xe5\x8f\xaf\xe8\xbe\xbe')>
Trying other mirror.
http://wftp.tu-chemnitz.de/pub/l ... epodata/repomd.xml: [Errno 12] Timeout: <urlopen error timed out>
Trying other mirror.
http://ftp-stud.fht-esslingen.de ... epodata/repomd.xml: [Errno 12] Timeout: <urlopen error timed out>
Trying other mirror.
http://mirror.atrpms.net/livna/fedora/7/i386/repodata/repomd.xml: [Errno 12] Timeout: <urlopen error timed out>
Trying other mirror.
ftp://mirrors.tummy.com/pub/rpm. ... epodata/repomd.xml: [Errno 4] IOError: [Errno ftp error] timed out
Trying other mirror.
Error: Cannot open/read repomd.xml file for repository: livna

hellwolf

能访问网络/国外网吗？

killer5757

教育网不能直接访问国外网，通过代理
wget能访问，yum访问livna就不行

[root@localhost ~]# export http_proxy="http://219.243.136.235:8080"
[root@localhost ~]# wget http://www.mplayerhq.hu/images/skins/Blue-01.jpg
--16:44:37--  http://www.mplayerhq.hu/images/skins/Blue-01.jpg
           => `Blue-01.jpg'
Connecting to 219.243.136.235:8080... 已连接。
已发出 Proxy 请求，正在等待回应... 200 OK
长度：37,017 (36K) [image/jpeg]

100%[====================================>] 37,017         4.07K/s    ETA 00:00

16:45:35 (4.07 KB/s) - `Blue-01.jpg' saved [37017/37017]

killer5757

教育网不能直接访问国外网，通过代理
wget能访问，yum访问livna就不行

[root@localhost ~]# export http_proxy="http://219.243.136.235:8080"
[root@localhost ~]# wget http://www.mplayerhq.hu/images/skins/Blue-01.jpg
--16:44:37--  http://www.mplayerhq.hu/images/skins/Blue-01.jpg
           => `Blue-01.jpg'
Connecting to 219.243.136.235:8080... 已连接。
已发出 Proxy 请求，正在等待回应... 200 OK
长度：37,017 (36K) [image/jpeg]

100%[====================================>] 37,017         4.07K/s    ETA 00:00

16:45:35 (4.07 KB/s) - `Blue-01.jpg' saved [37017/37017]