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1.问题描述
连接不上Err:1 http://us.archive.ubuntu/ubuntu xenial/main amd64 liblua5.2-0 amd64 5.2.4-1ubuntu1 等Ubuntu相关库的官网，报错日志如下：
root@scott:/home/scott# apt install yum
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
debugedit libarchive13 liblua5.2-0 libnspr4 libnss3 libnss3-nssdb librpm3 librpmbuild3 librpmio3 librpmsign3 libsqlite0 python-libxml2
python-lzma python-pycurl python-rpm python-sqlite python-sqlitecachec python-urlgrabber rpm rpm-common rpm2cpio
Suggested packages:
rpm-i18n lrzip libcurl4-gnutls-dev python-pycurl-dbg python-pycurl-doc python-sqlite-dbg alien elfutils rpmlint rpm2html
The following NEW packages will be installed:
debugedit libarchive13 liblua5.2-0 libnspr4 libnss3 libnss3-nssdb librpm3 librpmbuild3 librpmio3 librpmsign3 libsqlite0 python-libxml2
python-lzma python-pycurl python-rpm python-sqlite python-sqlitecachec python-urlgrabber rpm rpm-common rpm2cpio yum
0 upgraded, 22 newly installed, 0 to remove and 2 not upgraded.
Need to get 3,091 kB/3,134 kB of archives.
After this operation, 12.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Err:1 http://us.archive.ubuntu/ubuntu xenial/main amd64 liblua5.2-0 amd64 5.2.4-1ubuntu1
Temporary failure resolving 'us.archive.ubuntu'
Err:2 http://security.ubuntu/ubuntu xenial-security/main amd64 libnspr4 amd64 2:4.13.1-0ubuntu0.16.04.1
Temporary failure resolving 'us.archive.ubuntu'
Ign:3 http://us.archive.ubuntu/ubuntu xenial-updates/main i386 libnss3-nssdb all 2:3.28.4-0ubuntu0.16.04.14
Err:2 http://security.ubuntu/ubuntu xenial-security/main amd64 libnspr4 amd64 2:4.13.1-0ubuntu0.16.04.1
Temporary failure resolving 'us.archive.ubuntu'
2% [Connecting to us.archive.ubuntu]
2.原因分析
dns没有配置，不能解析域名。
3.解决办法
修改resolv.conf文件，添加：
vi /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4
nameserver 114.114.115.115
nameserver 114.114.114.114
重启网络，就可以使生效了。
/etc/init.d/networking restart重启Linux后，上面的修改可能生效，要想永久有用，
修改base文件，添加：
vi /etc/resolvconf/resolv.conf.d/base
nameserver 8.8.8.8
nameserver 8.8.4.4
nameserver 114.114.115.115
nameserver 114.114.114.114
重启Linux，使生效。
本文标签： 常见问题TemporaryUbuntufailure
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