LAN Search Pro is a free file search software that can search for files and folders over LAN. It can search for files over all your network computers, and shared folders. LAN Search Pro can also search for files on FTP locations. You can even save login credentials in this for your access restricted network resources.
To search files over network, you can provide file name, and use wild cards in that. You can also add specific filters, like, IPs to include and exclude.
Once LAN Search Pro finds the file, you can rename the file, copy the file, delete the file, move file, and more.