1.安装epel
[root@rabbitmq yum.repos.d]# yum install -y epel-release-7-9.noarch.rpm
2.使用list查看安装包列表报错
[root@rabbitmq yum.repos.d]# yum list
Loaded plugins: fastestmirror
base | 3.6 kB 00:00:00
https://dl.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#60 - "Peer's Certificate has expired."
Trying other mirror.
It was impossible to connect to the CentOS servers.
This could mean a connectivity issue in your environment, such as the requirement to configure a proxy,
or a transparent proxy that tampers with TLS security, or an incorrect system clock.
Please collect information about the specific failure that occurs in your environment,
using the instructions in: https://access.redhat.com/solutions/1527033 and create a bug on https://bugs.centos.org/
One of the configured repositories failed (epel),
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. Disable the repository, 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 epel
4. 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=epel.skip_if_unavailable=true
failure: repodata/repomd.xml from epel: [Errno 256] No more mirrors to try.
https://dl.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#60 - "Peer's Certificate has expired."
[root@rabbitmq yum.repos.d]#
3.问题处理
修改epel.repo文件将mirrorlist注释，将baseurl取消注释
[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://download.fedoraproject.org/pub/epel/7/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7