异常信息
[root@localhost ~]# yum list java*
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
One of the configured repositories failed (Unknown),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:
1. Contact the upstream for the repository and get them to fix the problem.
2. Reconfigure the baseurl/etc. for the repository, to point to a working
upstream. This is most often useful if you are using a newer
distribution release than is supported by the repository (and the
packages for the previous distribution release still work).
3. Run the command with the repository temporarily disabled
yum --disablerepo=<repoid> ...
4. Disable the repository permanently, so yum won't use it by default. Yum
will then just ignore the repository until you permanently enable it
again or use --enablerepo for temporary usage:
yum-config-manager --disable <repoid>
or
subscription-manager repos --disable=<repoid>
5. Configure the failing repository to be skipped, if it is unavailable.
Note that yum will try to contact the repo. when it runs most commands,
so will have to try and fail each time (and thus. yum will be be much
slower). If it is a very temporary problem though, this is often a nice
compromise:
yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
Cannot find a valid baseurl for repo: base/7/x86_64
查看网卡信息
[root@localhost ~]# cd /etc/sysconfig/network-scripts
[root@localhost network-scripts]# ls
ifcfg-eno1 ifcfg-lo ifdown-bnep ifdown-ib ifdown-ipv6 ifdown-post ifdown-routes ifdown-Team ifdown-tunnel ifup-aliases ifup-eth ifup-ippp ifup-isdn ifup-plusb ifup-ppp ifup-sit ifup-TeamPort ifup-wireless network-functions
ifcfg-eno2 ifdown ifdown-eth ifdown-ippp ifdown-isdn ifdown-ppp ifdown-sit ifdown-TeamPort ifup ifup-bnep ifup-ib ifup-ipv6 ifup-plip ifup-post ifup-routes ifup-Team ifup-tunnel init.ipv6-global network-functions-ipv6
[root@localhost network-scripts]#
修改 ifcfg-eno1 添加DNS
DNS1=144.144.144.144
DNS2=8.8.8.8
vim /etc/sysconfig/network-scripts/ifcfg-eno1
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
IPADDR=192.168.11.148
NETMASK=255.255.255.0
NM_CONTROLLED=no
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=eno1
UUID=58b167a2-cf10-4980-a682-d43d966e05fe
DEVICE=eno1
ONBOOT=yes
GATEWAY=192.168.11.1
DNS1=144.144.144.144
DNS2=8.8.8.8
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