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Hi, One of our AWS machines was used in an DOS attack last night and I am looking for possible attack vectors. AWS tells me it was sending UDP port 0 traffic to a cloudflare address. This instance had an incorrectly configured AWS security group exposing all ports. The server in question is a Centos 7 based FreeIPA server, OpenVPN concentrator and DNS server. With a brief inspection before the

Thanks for your advice, Rowland > > Yes, I am setting up a new Samba-based AD DC. > If you are joining? to an existing domain, then you cannot be setting up > a new domain ;-) Yes - joining a new DC to an existing domain. > > Should I install BIND9 and DHCP first, then install Samba and do the join? > > I personally would do it in stages, set up the Rpi, add