I have a CentOS 7 server, with 5-6 domains (one being the main domain, the others subdomains).
Ever since installing Lets Encrypt and handling the redirections in httpd-vhost.conf
, the access log has been filling up with requests from localhost / my server's IP. Using this:
cat /var/logs/domains/example.com-access.log | awk '{print $1}' | sort -n | uniq -c | sort -nr | head -n 1
yields 214,900 requests made by the server to itself. In comparison, the next top number of requests (Googlebot) is between 1,000 and 2,000.
The requests look something like this (* used as placeholder for my server's IP)
*.*.*.* - - [26/Aug/2021:03:44:10 +0200] "GET /wp-content/uploads/2017/04/myimg-01.jpg HTTP/1.0" 200 125763 "-" "-"
Is this normal behaviour? I have Lets Encrypt and redirections on other servers (same OS, same settings), and this isn't happening there.
If this isn't normal behaviour, what can I do to find out the root cause of it?