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  1. #1
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    15,043

    Como determinar endereços de Google Global Cache?

    O Youtube está com um desempenho sofrivel usando os GGCs de Miami. Pesquisando na Internet, encontrei um expediente (*) para mapear para outros servidores. Alguém conhece uma forma de obter os GGCs e endereços em geral ou uma listagem dos mesmos no Brasil (**)?

    (*)
    Let's say the mapping you get is
    [Your IP] => iad03s05
    In your hosts file, add the entries

    173.194.41.135 r1.iad03s05.c.youtube.com
    173.194.41.136 r2.iad03s05.c.youtube.com
    173.194.41.137 r3.iad03s05.c.youtube.com
    173.194.41.142 r4.iad03s05.c.youtube.com
    173.194.41.128 r5.iad03s05.c.youtube.com
    173.194.41.129 r6.iad03s05.c.youtube.com
    173.194.41.131 r7.iad03s05.c.youtube.com
    173.194.41.132 r8.iad03s05.c.youtube.com
    173.194.41.133 r9.iad03s05.c.youtube.com
    173.194.41.134 r10.iad03s05.c.youtube.com
    173.194.41.135 r1---iad03s05.c.youtube.com
    173.194.41.136 r2---iad03s05.c.youtube.com
    173.194.41.137 r3---iad03s05.c.youtube.com
    173.194.41.142 r4---iad03s05.c.youtube.com
    173.194.41.128 r5---iad03s05.c.youtube.com
    173.194.41.129 r6---iad03s05.c.youtube.com
    173.194.41.131 r7---iad03s05.c.youtube.com
    173.194.41.132 r8---iad03s05.c.youtube.com
    173.194.41.133 r9---iad03s05.c.youtube.com
    173.194.41.134 r10---iad03s05.c.youtube.com
    (**)
    # LAX YouTube content servers
    173.194.41.135 r1---comcast-lax1.c.youtube.com
    173.194.41.136 r2---comcast-lax1.c.youtube.com
    173.194.41.137 r3---comcast-lax1.c.youtube.com
    173.194.41.142 r4---comcast-lax1.c.youtube.com
    173.194.41.128 r5---comcast-lax1.c.youtube.com
    173.194.41.129 r6---comcast-lax1.c.youtube.com
    173.194.41.131 r7---comcast-lax1.c.youtube.com
    173.194.41.132 r8---comcast-lax1.c.youtube.com
    173.194.41.133 r9---comcast-lax1.c.youtube.com
    173.194.41.134 r10---comcast-lax1.c.youtube.com
    173.194.41.135 r1.comcast-lax1.c.youtube.com
    173.194.41.136 r2.comcast-lax1.c.youtube.com
    173.194.41.137 r3.comcast-lax1.c.youtube.com
    173.194.41.142 r4.comcast-lax1.c.youtube.com
    173.194.41.128 r5.comcast-lax1.c.youtube.com
    173.194.41.129 r6.comcast-lax1.c.youtube.com
    173.194.41.131 r7.comcast-lax1.c.youtube.com
    173.194.41.132 r8.comcast-lax1.c.youtube.com
    173.194.41.133 r9.comcast-lax1.c.youtube.com
    173.194.41.134 r10.comcast-lax1.c.youtube.com

    # Dallas YouTube Content Servers
    173.194.41.135 dfw06x01.c.youtube.com
    173.194.41.136 dfw06x01.c.youtube.com
    173.194.41.137 dfw06x01.c.youtube.com
    173.194.41.142 dfw06x01.c.youtube.com
    173.194.41.128 dfw06x01.c.youtube.com
    173.194.41.129 dfw06x01.c.youtube.com
    173.194.41.131 dfw06x01.c.youtube.com
    173.194.41.132 dfw06x01.c.youtube.com
    173.194.41.133 dfw06x01.c.youtube.com
    173.194.41.134 dfw06x01.c.youtube.com
    173.194.41.135 r1---dfw06x01.c.youtube.com
    173.194.41.136 r2---dfw06x01.c.youtube.com
    173.194.41.137 r3---dfw06x01.c.youtube.com
    173.194.41.142 r4---dfw06x01.c.youtube.com
    173.194.41.128 r5---dfw06x01.c.youtube.com
    173.194.41.129 r6---dfw06x01.c.youtube.com
    173.194.41.131 r7---dfw06x01.c.youtube.com
    173.194.41.132 r8---dfw06x01.c.youtube.com
    173.194.41.133 r9---dfw06x01.c.youtube.com
    173.194.41.134 r10---dfw06x01.c.youtube.com
    173.194.41.135 r1.dfw06x01.c.youtube.com
    173.194.41.136 r2.dfw06x01.c.youtube.com
    173.194.41.137 r3.dfw06x01.c.youtube.com
    173.194.41.142 r4.dfw06x01.c.youtube.com
    173.194.41.128 r5.dfw06x01.c.youtube.com
    173.194.41.129 r6.dfw06x01.c.youtube.com
    173.194.41.131 r7.dfw06x01.c.youtube.com
    173.194.41.132 r8.dfw06x01.c.youtube.com
    173.194.41.133 r9.dfw06x01.c.youtube.com
    173.194.41.134 r10.dfw06x01.c.youtube.com
    173.194.41.135 r1---dfw06s19.c.youtube.com
    173.194.41.136 r2---dfw06s19.c.youtube.com
    173.194.41.137 r3---dfw06s19.c.youtube.com
    173.194.41.142 r4---dfw06s19.c.youtube.com
    173.194.41.128 r5---dfw06s19.c.youtube.com
    173.194.41.129 r6---dfw06s19.c.youtube.com
    173.194.41.131 r7---dfw06s19.c.youtube.com
    173.194.41.132 r8---dfw06s19.c.youtube.com
    173.194.41.133 r9---dfw06s19.c.youtube.com
    173.194.41.134 r10---dfw06s19.c.youtube.com
    173.194.41.135 r1.dfw06s19.c.youtube.com
    173.194.41.136 r2.dfw06s19.c.youtube.com
    173.194.41.137 r3.dfw06s19.c.youtube.com
    173.194.41.142 r4.dfw06s19.c.youtube.com
    173.194.41.128 r5.dfw06s19.c.youtube.com
    173.194.41.129 r6.dfw06s19.c.youtube.com
    173.194.41.131 r7.dfw06s19.c.youtube.com
    173.194.41.132 r8.dfw06s19.c.youtube.com
    173.194.41.133 r9.dfw06s19.c.youtube.com
    173.194.41.134 r10.dfw06s19.c.youtube.com

    # San Jose YouTube content servers
    173.194.41.135 r1---sjc07s11.c.youtube.com
    173.194.41.136 r2---sjc07s11.c.youtube.com
    173.194.41.137 r3---sjc07s11.c.youtube.com
    173.194.41.142 r4---sjc07s11.c.youtube.com
    173.194.41.128 r5---sjc07s11.c.youtube.com
    173.194.41.129 r6---sjc07s11.c.youtube.com
    173.194.41.131 r7---sjc07s11.c.youtube.com
    173.194.41.132 r8---sjc07s11.c.youtube.com
    173.194.41.133 r9---sjc07s11.c.youtube.com
    173.194.41.134 r10---sjc07s11.c.youtube.com
    173.194.41.135 r1.sjc07s11.c.youtube.com
    173.194.41.136 r2.sjc07s11.c.youtube.com
    173.194.41.137 r3.sjc07s11.c.youtube.com
    173.194.41.142 r4.sjc07s11.c.youtube.com
    173.194.41.128 r5.sjc07s11.c.youtube.com
    173.194.41.129 r6.sjc07s11.c.youtube.com
    173.194.41.131 r7.sjc07s11.c.youtube.com
    173.194.41.132 r8.sjc07s11.c.youtube.com
    173.194.41.133 r9.sjc07s11.c.youtube.com
    173.194.41.134 r10.sjc07s11.c.youtube.com
    173.194.41.135 r1---sjc07s19.c.youtube.com
    173.194.41.136 r2---sjc07s19.c.youtube.com
    173.194.41.137 r3---sjc07s19.c.youtube.com
    173.194.41.142 r4---sjc07s19.c.youtube.com
    173.194.41.128 r5---sjc07s19.c.youtube.com
    173.194.41.129 r6---sjc07s19.c.youtube.com
    173.194.41.131 r7---sjc07s19.c.youtube.com
    173.194.41.132 r8---sjc07s19.c.youtube.com
    173.194.41.133 r9---sjc07s19.c.youtube.com
    173.194.41.134 r10---sjc07s19.c.youtube.com
    173.194.41.135 r1.sjc07s19.c.youtube.com
    173.194.41.136 r2.sjc07s19.c.youtube.com
    173.194.41.137 r3.sjc07s19.c.youtube.com
    173.194.41.142 r4.sjc07s19.c.youtube.com
    173.194.41.128 r5.sjc07s19.c.youtube.com
    173.194.41.129 r6.sjc07s19.c.youtube.com
    173.194.41.131 r7.sjc07s19.c.youtube.com
    173.194.41.132 r8.sjc07s19.c.youtube.com
    173.194.41.133 r9.sjc07s19.c.youtube.com
    173.194.41.134 r10.sjc07s19.c.youtube.com

    # Washington content servers
    173.194.41.135 r1---iad09s12.c.youtube.com
    173.194.41.136 r2---iad09s12.c.youtube.com
    173.194.41.137 r3---iad09s12.c.youtube.com
    173.194.41.142 r4---iad09s12.c.youtube.com
    173.194.41.128 r5---iad09s12.c.youtube.com
    173.194.41.129 r6---iad09s12.c.youtube.com
    173.194.41.131 r7---iad09s12.c.youtube.com
    173.194.41.132 r8---iad09s12.c.youtube.com
    173.194.41.133 r9---iad09s12.c.youtube.com
    173.194.41.134 r10---iad09s12.c.youtube.com
    173.194.41.135 r1.iad09s12.c.youtube.com
    173.194.41.136 r2.iad09s12.c.youtube.com
    173.194.41.137 r3.iad09s12.c.youtube.com
    173.194.41.142 r4.iad09s12.c.youtube.com
    173.194.41.128 r5.iad09s12.c.youtube.com
    173.194.41.129 r6.iad09s12.c.youtube.com
    173.194.41.131 r7.iad09s12.c.youtube.com
    173.194.41.132 r8.iad09s12.c.youtube.com
    173.194.41.133 r9.iad09s12.c.youtube.com
    173.194.41.134 r10.iad09s12.c.youtube.com
    173.194.41.135 r1.iad09s10.c.youtube.com
    173.194.41.136 r2.iad09s10.c.youtube.com
    173.194.41.137 r3.iad09s10.c.youtube.com
    173.194.41.142 r4.iad09s10.c.youtube.com
    173.194.41.128 r5.iad09s10.c.youtube.com
    173.194.41.129 r6.iad09s10.c.youtube.com
    173.194.41.131 r7.iad09s10.c.youtube.com
    173.194.41.132 r8.iad09s10.c.youtube.com
    173.194.41.133 r9.iad09s10.c.youtube.com
    173.194.41.134 r10.iad09s10.c.youtube.com
    173.194.41.135 r1---iad09s10.c.youtube.com
    173.194.41.136 r2---iad09s10.c.youtube.com
    173.194.41.137 r3---iad09s10.c.youtube.com
    173.194.41.142 r4---iad09s10.c.youtube.com
    173.194.41.128 r5---iad09s10.c.youtube.com
    173.194.41.129 r6---iad09s10.c.youtube.com
    173.194.41.131 r7---iad09s10.c.youtube.com
    173.194.41.132 r8---iad09s10.c.youtube.com
    173.194.41.133 r9---iad09s10.c.youtube.com
    173.194.41.134 r10---iad09s10.c.youtube.com
    173.194.41.135 r1.iad23x01.c.youtube.com
    173.194.41.136 r2.iad23x01.c.youtube.com
    173.194.41.137 r3.iad23x01.c.youtube.com
    173.194.41.142 r4.iad23x01.c.youtube.com
    173.194.41.128 r5.iad23x01.c.youtube.com
    173.194.41.129 r6.iad23x01.c.youtube.com
    173.194.41.131 r7.iad23x01.c.youtube.com
    173.194.41.132 r8.iad23x01.c.youtube.com
    173.194.41.133 r9.iad23x01.c.youtube.com
    173.194.41.134 r10.iad23x01.c.youtube.com
    173.194.41.135 r1---iad23x01.c.youtube.com
    173.194.41.136 r2---iad23x01.c.youtube.com
    173.194.41.137 r3---iad23x01.c.youtube.com
    173.194.41.142 r4---iad23x01.c.youtube.com
    173.194.41.128 r5---iad23x01.c.youtube.com
    173.194.41.129 r6---iad23x01.c.youtube.com
    173.194.41.131 r7---iad23x01.c.youtube.com
    173.194.41.132 r8---iad23x01.c.youtube.com
    173.194.41.133 r9---iad23x01.c.youtube.com
    173.194.41.134 r10---iad23x01.c.youtube.com

  2. #2
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    15,043
    Na unha:

    GGS gru03s11

    173.194.27.70 r1.gru03s11.c.youtube.com
    173.194.27.71 r2.gru03s11.c.youtube.com
    173.194.27.72 r3.gru03s11.c.youtube.com
    173.194.27.73 r4.gru03s11.c.youtube.com
    173.194.27.74 r5.gru03s11.c.youtube.com
    173.194.27.75 r6.gru03s11.c.youtube.com
    173.194.27.76 r7.gru03s11.c.youtube.com
    173.194.27.77 r8.gru03s11.c.youtube.com
    173.194.27.78 r9.gru03s11.c.youtube.com
    173.194.27.79 r10.gru03s11.c.youtube.com

    173.194.27.70 r1---gru03s11.c.youtube.com
    173.194.27.71 r2---gru03s11.c.youtube.com
    173.194.27.72 r3---gru03s11.c.youtube.com
    173.194.27.73 r4---gru03s11.c.youtube.com
    173.194.27.74 r5---gru03s11.c.youtube.com
    173.194.27.75 r6---gru03s11.c.youtube.com
    173.194.27.76 r7---gru03s11.c.youtube.com
    173.194.27.77 r8---gru03s11.c.youtube.com
    173.194.27.78 r9---gru03s11.c.youtube.com
    173.194.27.79 r10---gru03s11.c.youtube.com


    173.194.27.70 r1.tiws-mia5.c.youtube.com
    173.194.27.71 r2.tiws-mia5.c.youtube.com
    173.194.27.72 r3.tiws-mia5.c.youtube.com
    173.194.27.73 r4.tiws-mia5.c.youtube.com
    173.194.27.74 r5.tiws-mia5.c.youtube.com
    173.194.27.75 r6.tiws-mia5.c.youtube.com
    173.194.27.76 r7.tiws-mia5.c.youtube.com
    173.194.27.77 r8.tiws-mia5.c.youtube.com
    173.194.27.78 r9.tiws-mia5.c.youtube.com
    173.194.27.79 r10.tiws-mia5.c.youtube.com

    173.194.27.70 r1---tiws-mia5.c.youtube.com
    173.194.27.71 r2---tiws-mia5.c.youtube.com
    173.194.27.72 r3---tiws-mia5.c.youtube.com
    173.194.27.73 r4---tiws-mia5.c.youtube.com
    173.194.27.74 r5---tiws-mia5.c.youtube.com
    173.194.27.75 r6---tiws-mia5.c.youtube.com
    173.194.27.76 r7---tiws-mia5.c.youtube.com
    173.194.27.77 r8---tiws-mia5.c.youtube.com
    173.194.27.78 r9---tiws-mia5.c.youtube.com
    173.194.27.79 r10---tiws-mia5.c.youtube.com

    173.194.27.70 r1.tiws-mia1.c.youtube.com
    173.194.27.71 r2.tiws-mia1.c.youtube.com
    173.194.27.72 r3.tiws-mia1.c.youtube.com
    173.194.27.73 r4.tiws-mia1.c.youtube.com
    173.194.27.74 r5.tiws-mia1.c.youtube.com
    173.194.27.75 r6.tiws-mia1.c.youtube.com
    173.194.27.76 r7.tiws-mia1.c.youtube.com
    173.194.27.77 r8.tiws-mia1.c.youtube.com
    173.194.27.78 r9.tiws-mia1.c.youtube.com
    173.194.27.79 r10.tiws-mia1.c.youtube.com

    173.194.27.70 r1---tiws-mia1.c.youtube.com
    173.194.27.71 r2---tiws-mia1.c.youtube.com
    173.194.27.72 r3---tiws-mia1.c.youtube.com
    173.194.27.73 r4---tiws-mia1.c.youtube.com
    173.194.27.74 r5---tiws-mia1.c.youtube.com
    173.194.27.75 r6---tiws-mia1.c.youtube.com
    173.194.27.76 r7---tiws-mia1.c.youtube.com
    173.194.27.77 r8---tiws-mia1.c.youtube.com
    173.194.27.78 r9---tiws-mia1.c.youtube.com
    173.194.27.79 r10---tiws-mia1.c.youtube.com

    Funcionou

  3. #3
    Moderador
    Data de Ingresso
    Oct 2010
    Localização
    Rio de Janeiro
    Posts
    2,679
    Tem só esses não.

  4. #4
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    15,043
    Citação Postado originalmente por cresci Ver Post
    Tem só esses não.
    Eu sei que não. Eu encontrei o gru03s11 procurando uma lista, informações sobre quantos GGCs tem no Brasil, etc. Agora apareceu um tiws-gru1 ...

  5. #5
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    15,043
    Domain Names and IP Addresses

    We categorize the domain names seen in URLs on YouTube’s websites as follows:

    Unique global host names
    video cache host names
    static cache host names
    unknown types.

    Global host names. Each YouTube server IP address has
    one global unique entry in Google’s DNS servers. They are
    encoded in the form of rα.βγsδ.c.youtube.com where
    α is 1-24, β is an International Air Transport Association
    (IATA) airport codes [17], γ is 01-16, and δ is 01-12. Note
    that not all global host names can be resolved at all times.

    Video cache host names. Names of this type are used to
    serve the actual video content to the user. A single video can be
    served from different video caches. The resolved IP addresses
    are specific to the region the user request originates from. The
    name format is vα.lscacheδ.c.youtube.com where is δ 1-8. We
    were able to map the video cache host name to the global host
    names discovered during one test run most of the time.

    Static cache host names. These are used to host static
    content of the website, e.g. style sheets, images, script files,
    or the YouTube Flash player. As there is just a single subdomain,
    only one set of addresses per region is responsible
    for this type of content. Names of this type take the form of
    s.ytimg.com and i.ytimg.com.

    http://www.itc23.com/fileadmin/ITC23.../papers/a5.pdf

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