To secure the server gets hacked or exploited by the hacker make sure that servers important binaries like find, lynx, wget, etc are secured and can’t be used by the hacker to execute the hacking script. Refer to the following command to secure the server binaries.
chmod 700 `which gcc` `which find` `which free` `which wget` `which lynx` `which curl` `which df` `which dmesg` `which echo` `which grep` `which w` `which who` `which gunzip` `which gzip` `which kill` `which ln` `which ps` `which netstat` `which rpm` `which uname` `which locate`
