while loop to read file ends prematurely

Question

The eventual goal is to have my bash script execute a command on multiple servers. I almost have it set up. My SSH authentication is working, but this simple while loop is

Answer 1

As the solution specified here use -n option for ssh or open file with a different handle:

while read -u 4 HOST
  do
    echo $HOST
    ssh $HOST "uname -a"
    ssh $HOST "oslevel -s"
    echo ""
  done 4< hosts.list`