Sorry if this question is stupid or doesn't make sense. What led me to ask this is that I noticed my known_hosts file has many (15) lines and I'm not sure why; I didn't think I had connected to this many servers? (I think this is what the known_hosts file is for based on my limited understanding of the answer to this post). There are no hostnames associated with each line (no comments after).
I used this command:
ssh-keyscan -t rsa,dsa -f known_hosts > ~/.ssh/known_hosts_revised based on this post and it said for all of them, "Name or service not known".
I'm just going to clear the known_hosts file, but was wondering if this was actually an issue and if I should expect potentially negative issues as a result and try to do some fix. Thanks.