java rebinding http://www.loongten.com/2020/02/26/dns-rebinding-bypass http://www.lpnote.com/2018/11/23/java-dns-cache/ https://www.xmanblog.net/java-dns-rebinding-ssrf/ https://paper.seebug.org/390/ https://powerdns.org/hello-dns/ http://www.ruanyifeng.com/blog/2016/06/dns.html
