Cum se ascunde versiunea server-ului BIND DNS

Deschideti named.conf si cautati urmatoarele linii:

options
{
        query-source    port 53;
        query-source-v6 port 53;
        listen-on { 174.ttt.xx.yy; };
        directory "/var/named"; // the default
        dump-file               "data/cache_dump.db";
        statistics-file         "data/named_stats.txt";
        memstatistics-file      "data/named_mem_stats.txt";
        dnssec-enable yes;
        recursion no;
        allow-notify { 174.zzz.yy.zz; 172.xx.yy.zz; };
        version "[SECURED]";
};

La version scrieti ce doriti.

version “mesajul vostru”;

In cazul in care nu gasiti aceasta linie adaugati-o voi.

Salvati si inchideti named.cond si restartati server-ul bind.

service bind9 restart

sau

service named restart

Cum verific versiunea BIND?

 

dig @www.website.com -c CH -t txt version.bind

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