The remote SSH server rejected X11 forwarding request.
[root@ser6386105350 ~]# yum install -y wget && wget -O install.sh http://download.bt.cn/install/install_6.0.sh && sh install.sh ed8484bec
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: ftp.sjtu.edu.cn
 * extras: free.nchc.org.tw
 * updates: free.nchc.org.tw
http://mirrors.bfsu.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
To address this issue please refer to the below wiki article 

https://wiki.centos.org/yum-errors

If above article doesn't help to resolve this issue please use https://bugs.centos.org/.


http://mirror.lzu.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2001:da8:c000::160: Network is unreachable"
Trying other mirror.
http://ftp.twaren.net/Linux/CentOS/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2001:e10:5c00:5::9: Network is unreachable"
Trying other mirror.
http://mirror.bit.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2001:da8:204:1205::22: Network is unreachable"
Trying other mirror.
http://ftp.tc.edu.tw/Linux/CentOS/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found
Trying other mirror.
http://ftp.sjtu.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
http://mirror01.idc.hinet.net/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
http://mirrors.neusoft.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2001:da8:a807::25: Network is unreachable"
Trying other mirror.
http://mirrors.ustc.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
http://mirrors.tuna.tsinghua.edu.cn/centos/7.8.2003/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
http://mirrors.bfsu.edu.cn/centos/7.8.2003/extras/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
http://free.nchc.org.tw/centos/7.8.2003/extras/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2001:e10:2000:240:e643:4bff:fee8:a63c: Network is unreachable"
Trying other mirror.
http://ftp.stu.edu.tw/Linux/CentOS/7.8.2003/extras/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://ftp.stu.edu.tw/Linux/CentOS/7.8.2003/extras/x86_64/repodata/repomd.xml: (28, 'Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds')
Trying other mirror.
