CentOS7 yum 时报错
[root@localhost apache-flume-1.7.0-bin]# yum -y install telnet-server
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.sjtu.edu.cn
* extras: ftp.sjtu.edu.cn
* updates: ftp.sjtu.edu.cn
http://mirrors.nju.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.nju.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.ustc.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.ustc.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.huaweicloud.com/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.huaweicloud.com; 未知的错误"
正在尝试其它镜像。
http://mirrors.163.com/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.163.com; 未知的错误"
正在尝试其它镜像。
http://mirror.lzu.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.lzu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://ftp.sjtu.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: ftp.sjtu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.tuna.tsinghua.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.neusoft.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.neusoft.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.cqu.edu.cn/CentOS/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cqu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.bfsu.edu.cn/centos/7.9.2009/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.bfsu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.aliyun.com/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; 未知的错误"
正在尝试其它镜像。
http://mirrors.nju.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.nju.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.ustc.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.ustc.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.163.com/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.163.com; 未知的错误"
正在尝试其它镜像。
http://mirror.lzu.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.lzu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://ftp.sjtu.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: ftp.sjtu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.tuna.tsinghua.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.neusoft.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.neusoft.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.cqu.edu.cn/CentOS/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cqu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.bfsu.edu.cn/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.bfsu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.aliyun.com/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; 未知的错误"
正在尝试其它镜像。
http://mirrors.nju.edu.cn/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.nju.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.huaweicloud.com/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.huaweicloud.com; 未知的错误"
正在尝试其它镜像。
http://mirrors.163.com/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.163.com; 未知的错误"
正在尝试其它镜像。
http://mirror.lzu.edu.cn/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirror.lzu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://ftp.sjtu.edu.cn/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: ftp.sjtu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.tuna.tsinghua.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.neusoft.edu.cn/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.neusoft.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.cqu.edu.cn/CentOS/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cqu.edu.cn; 未知的错误"
正在尝试其它镜像。
http://mirrors.bfsu.edu.cn/centos/7.9.2009/updates/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.bfsu.edu.cn; 未知的错误"
正在尝试其它镜像。
正在解决依赖关系
--> 正在检查事务
---> 软件包 telnet-server.x86_64.1.0.17-66.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
================================================================================================================================================
Package 架构 版本 源 大小
================================================================================================================================================
正在安装:
telnet-server x86_64 1:0.17-66.el7 updates 41 k
事务概要
================================================================================================================================================
安装 1 软件包
总下载量：41 k
安装大小：55 k
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.aliyun.com/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.nju.edu.cn/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.nju.edu.cn; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.huaweicloud.com/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.huaweicloud.com; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.163.com/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.163.com; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirror.lzu.edu.cn/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirror.lzu.edu.cn; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://ftp.sjtu.edu.cn/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: ftp.sjtu.edu.cn; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.tuna.tsinghua.edu.cn; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.neusoft.edu.cn/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.neusoft.edu.cn; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.cqu.edu.cn/CentOS/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.cqu.edu.cn; Unknown error"
正在尝试其它镜像。
telnet-server-0.17-66.el7.x86_ FAILED
http://mirrors.bfsu.edu.cn/centos/7.9.2009/updates/x86_64/Packages/telnet-server-0.17-66.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.bfsu.edu.cn; Unknown error"
正在尝试其它镜像。
解决方式
# vi /etc/resolv.conf
# Generated by NetworkManager
nameserver 8.8.8.8
nameserver 114.114.114.114
安装telnet
rpm -qa telnet
无响应说明未安装成功
[root@localhost ~]# rpm -qa telnet*
telnet-server-0.17-66.el7.x86_64
[root@localhost ~]# yum install -y telnet
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.ustc.edu.cn
* extras: mirrors.aliyun.com
* updates: mirrors.ustc.edu.cn
base | 3.6 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
正在解决依赖关系
--> 正在检查事务
---> 软件包 telnet.x86_64.1.0.17-66.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
================================================================================================================================================
Package 架构 版本 源 大小
================================================================================================================================================
正在安装:
telnet x86_64 1:0.17-66.el7 updates 64 k
事务概要
================================================================================================================================================
安装 1 软件包
总下载量：64 k
安装大小：113 k
Downloading packages:
telnet-0.17-66.el7.x86_64.rpm | 64 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : 1:telnet-0.17-66.el7.x86_64 1/1
验证中 : 1:telnet-0.17-66.el7.x86_64 1/1
已安装:
telnet.x86_64 1:0.17-66.el7
完毕！
[root@localhost ~]# service xinetd restart
Redirecting to /bin/systemctl restart xinetd.service
Failed to restart xinetd.service: Unit not found.
[root@localhost ~]# yum -y install xinetd
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.sjtu.edu.cn
* extras: ftp.sjtu.edu.cn
* updates: ftp.sjtu.edu.cn
正在解决依赖关系
--> 正在检查事务
---> 软件包 xinetd.x86_64.2.2.3.15-14.el7 将被 安装
--> 解决依赖关系完成
依赖关系解决
================================================================================================================================================
Package 架构 版本 源 大小
================================================================================================================================================
正在安装:
xinetd x86_64 2:2.3.15-14.el7 base 128 k
事务概要
================================================================================================================================================
安装 1 软件包
总下载量：128 k
安装大小：261 k
Downloading packages:
xinetd-2.3.15-14.el7.x86_64.rpm | 128 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装 : 2:xinetd-2.3.15-14.el7.x86_64 1/1
验证中 : 2:xinetd-2.3.15-14.el7.x86_64 1/1
已安装:
xinetd.x86_64 2:2.3.15-14.el7
完毕！
[root@localhost ~]# service xinetd restart
Redirecting to /bin/systemctl restart xinetd.service
至此telnet安装完毕
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