@ask_bill_brooks    Thank you for your help. The message I received is as follows.   -------------------------------------------------------------------------------------------------- root@hadoop00:/home/hadoop00# wget -O /etc/apt/sources.list.d/ambari.list https://myname@gmail.com:*MyPassWd*@archive.cloudera.com/p/ambari/ubuntu14/2.x/updates/2.7.3.39/ambari.list --2021-06-28 14:29:12-- https://myname@gmail.com/ Resolving gmail.com (gmail.com)... 142.250.76.133, 2404:6800:400a:80e::2005 connect gmail.com (gmail.com)|142.250.76.133|:443... Connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: https://www.google.com/gmail/ [following] --2021-06-28 14:29:12-- https://www.google.com/gmail/ Resolving www.google.com (www.google.com)... 172.217.161.196, 2404:6800:400a:80b::2004 connect (www.google.com)|172.217.161.196|:443... Connected. HTTP request sent, awaiting response... 302 Found Location: https://mail.google.com/mail/ [following] --2021-06-28 14:29:13-- https://mail.google.com/mail/ Resolving mail.google.com (mail.google.com)... 216.58.196.229, 2404:6800:400a:806::2005 connect mail.google.com (mail.google.com)|216.58.196.229|:443... Connected. HTTP request sent, awaiting response... 302 Moved Temporarily Location: https://accounts.google.com/ServiceLogin?service=mail&passive=true&rm=false&continue=https://mail.google.com/mail/&ss=1&scc=1&ltmpl=default&ltmplcache=2&emr=1&osid=1# [following] --2021-06-28 14:29:14-- https://accounts.google.com/ServiceLogin?service=mail&passive=true&rm=false&continue=https://mail.google.com/mail/&ss=1&scc=1&ltmpl=default&ltmplcache=2&emr=1&osid=1 Resolving accounts.google.com (accounts.google.com)... 142.250.206.237, 2404:6800:400a:804::200d connect accounts.google.com (accounts.google.com)|142.250.206.237|:443... Connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: ‘/etc/apt/sources.list.d/ambari.list’ /etc/apt/sources.list.d/ [ <=> ] 92.02K --.-KB/s in 0.1s 2021-06-28 14:29:14 (894 KB/s) - ‘/etc/apt/sources.list.d/ambari.list’ saved [94232] --------------------------------------------------------------------------------------------------   The directory '/etc/apt/source.list.d/' contains an html document starting with "<!DOCTYPE>" has been saved. When I did "apt-get update", I received a message saying like the type of '<!DOCTYPE', the first word in document, is unknown. So I found out that I received the wrong document from wget. ... View more