Hi, Those dns servers are maintained by us.
One of them is in network 200.129.163.0/24 on one of our datacenters, and the other network is 200.129.164.0/24 another Datacenter, geographically distant location with another power supply, another optic fiber cable, and so on. Unfortunatellly, we dont have another ISP, but this one ( RNP - Rede Nacional de Ensino e Pesquisa ) we know that have redundancy in all aspects including backbone. > > > > > *That is, secondary servers should be at geographically distantlocations, > so it is unlikely that events like power loss, etc, willdisrupt all of them > simultaneously. They should also be connected tothe net via quite diverse > paths. This means that the failure of anyone link, or of routing within > some segment of the network (such as aservice provider) will not make all > of the servers unreachable.* Best regards Gerson Barreiros 2017-11-27 14:14 GMT-04:00 Bastian Blank <wa...@debian.org>: > Hi > > Thank you for mirroring Debian. > > Your mirror itself looks okay. > > However you have a DNS setup with all server near together: > > | ufam.edu.br. 43067 IN NS tucano.ufam.edu.br. > (200.129.164.3) > | ufam.edu.br. 43067 IN NS uirapuru.ufam.edu.br. > (200.129.163.1) > | ufam.edu.br. 43067 IN NS mutum.ufam.edu.br. > (200.129.163.3) > > This violates the principles stated in section 3 of RFC2182[1] and > creates huge headaches for our monitoring. Please contact your provider > and/or hostmas...@npr.br to setup a proper secondary DNS. > > On Sun, Nov 19, 2017 at 12:29:03AM +0000, Gerson Barreiros da Silva wrote: > > Submission-Type: new > > Site: mirror.ufam.edu.br > > Type: leaf > > Archive-architecture: amd64 i386 > > Archive-http: /debian/ > > Maintainer: Gerson Barreiros da Silva <fse...@gmail.com> > > Country: BR Brazil > > Location: Manaus, Amazonas > > Sponsor: Universidade Federal do Amazonas http://ufam.edu.br > > Bastian > > [1]: https://tools.ietf.org/html/rfc2182#section-3 > > -- > One does not thank logic. > -- Sarek, "Journey to Babel", stardate 3842.4 > -- ============================================== “Nós devemos ser a mudança que desejamos ver no mundo” > Gerson Barreiros > aka. fserve / gbs at irc.freenode.org > Launchpad: https://launchpad.net/~fserve > Facebook: http://fb.me/gersonbarreiros > Linux registered user #299560 ==============================================
