Eu tenho um servidor bind9 ligado em uma das minhas antigas caixas de teste e está perto. Tudo parece estar funcionando, no entanto, estou recebendo erros de 'tempo limite de resolução' enviando spam para meu sys.log do que parece ser 3 servidores DNS específicos ...
68.237.161.12
68.237.161.14
156.154.71.1
informações do bind9
Jul 25 07:18:59 toe-lfs named[23935]: starting BIND 9.14.4 (Stable Release) <id:ab4c496>
Jul 25 07:18:59 toe-lfs named[23935]: running on Linux x86_64 4.9.9 #1 SMP Sat Sep 23 11:18:52 EDT 2017
Jul 25 07:18:59 toe-lfs named[23935]: built with '--prefix=/usr' '--sysconfdir=/etc' '--localstatedir=/var' '--mandir=/usr/share/man' '--enable-threads' '--with-libtool' '--disable-static' '--without-python'
Jul 25 07:18:59 toe-lfs named[23935]: running as: named -4 -u named -t /srv/named -c /etc/named.conf
Jul 25 07:18:59 toe-lfs named[23935]: compiled by GCC 6.3.0
Jul 25 07:18:59 toe-lfs named[23935]: compiled with OpenSSL version: OpenSSL 1.0.2k 26 Jan 2017
Jul 25 07:18:59 toe-lfs named[23935]: linked to OpenSSL version: OpenSSL 1.0.2k 26 Jan 2017
Jul 25 07:18:59 toe-lfs named[23935]: compiled with zlib version: 1.2.11
Jul 25 07:18:59 toe-lfs named[23935]: linked to zlib version: 1.2.11
aqui está uma amostra do meu sys.log
Jul 25 06:24:56 toe-lfs named[16927]: timed out resolving 'ns2prod.18.azuredns-prd.info/A/IN': 68.237.161.14#53
Jul 25 06:24:57 toe-lfs named[16927]: timed out resolving 'static.xx.fbcdn.net/A/IN': 68.237.161.14#53
Jul 25 06:24:58 toe-lfs named[16927]: timed out resolving 'azuredns-prd.info/DS/IN': 68.237.161.12#53
Jul 25 06:24:59 toe-lfs named[16927]: timed out resolving 'azuredns-prd.info/DS/IN': 68.237.161.14#53
Jul 25 06:26:56 toe-lfs named[16927]: timed out resolving 'settingsfd-geo.trafficmanager.net/A/IN': 156.154.71.1#53
Jul 25 06:26:57 toe-lfs named[16927]: timed out resolving 'settingsfd-geo.trafficmanager.net/A/IN': 68.237.161.12#53
Jul 25 06:26:59 toe-lfs named[16927]: timed out resolving 'settingsfd-geo.trafficmanager.net/A/IN': 68.237.161.14#53
Jul 25 06:27:00 toe-lfs named[16927]: timed out resolving 'beacons.gcp.gvt2.com/A/IN': 68.237.161.12#53
Jul 25 06:27:01 toe-lfs named[16927]: timed out resolving 'beacons.gcp.gvt2.com/A/IN': 68.237.161.14#53
Jul 25 06:58:26 toe-lfs named[16927]: timed out resolving 'us-ne-courier-4.push-apple.com.akadns.net/A/IN': 68.237.161.14#53
Jul 25 06:58:27 toe-lfs named[16927]: timed out resolving 'gsp-ssl-geomap.ls-apple.com.akadns.net/A/IN': 68.237.161.14#53
Jul 25 06:58:28 toe-lfs named[16927]: timed out resolving 'us-ne-courier-4.push-apple.com.akadns.net/A/IN': 68.237.161.12#53
Jul 25 06:58:28 toe-lfs named[16927]: timed out resolving 'gsp-ssl-geomap.ls-apple.com.akadns.net/A/IN': 68.237.161.12#53
Jul 25 06:58:29 toe-lfs named[16927]: timed out resolving 'gsp-ssl-gspxramp.ls-apple.com.akadns.net/A/IN': 68.237.161.12#53
Jul 25 06:58:29 toe-lfs named[16927]: timed out resolving 'e4478.a.akamaiedge.net/A/IN': 68.237.161.12#53
Jul 25 06:58:29 toe-lfs named[16927]: timed out resolving 'e6858.dsce9.akamaiedge.net/A/IN': 68.237.161.12#53
Jul 25 06:58:30 toe-lfs named[16927]: timed out resolving 'help.apple.com/A/IN': 68.237.161.12#53
Jul 25 06:58:30 toe-lfs named[16927]: timed out resolving 'cds.apple.com/A/IN': 68.237.161.12#53
Jul 25 06:58:30 toe-lfs named[16927]: timed out resolving 'stocks-edge.apple.com/A/IN': 68.237.161.12#53
Jul 25 06:58:30 toe-lfs named[16927]: timed out resolving 'apple-finance.query.yahoo.com/A/IN': 68.237.161.12#53
Jul 25 06:58:30 toe-lfs named[16927]: timed out resolving 'stocks-sparkline.apple.com/A/IN': 68.237.161.12#53
Jul 25 06:58:30 toe-lfs named[16927]: timed out resolving 'gateway-carry.icloud.com/A/IN': 68.237.161.12#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'gsp-ssl-gspxramp.ls-apple.com.akadns.net/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'e4478.a.akamaiedge.net/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'e6858.dsce9.akamaiedge.net/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'help.apple.com/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'cds.apple.com/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'stocks-edge.apple.com/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'apple-finance.query.yahoo.com/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'stocks-sparkline.apple.com/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'gateway-carry.icloud.com/A/IN': 68.237.161.14#53
Jul 25 06:58:31 toe-lfs named[16927]: timed out resolving 'clientservices.googleapis.com/A/IN': 68.237.161.14#53
Eu posso incluir os arquivos conf se eles forem úteis. Eu só precisaria triplicar a verificação e higienizá-los. Alguma ideia?
edit: incluído named.conf
acl corpnets {
localhost;
172.30.24.0/22;
};
key "rndc-key" {
algorithm hmac-sha256;
secret "*****some secret key******";
};
controls {
inet 127.0.0.1 port 953
allow { 127.0.0.1; } keys { "rndc-key"; };
};
options {
directory "/etc/namedb";
pid-file "/var/run/named.pid";
statistics-file "/var/run/named.stats";
## listen-on { 172.30.24.1; };
managed-keys-directory "/etc";
recursion yes;
allow-recursion { corpnets; };
allow-query { corpnets; };
allow-transfer { none; };
forwarders {
156.154.71.1;
68.237.161.12;
68.237.161.14;
8.8.8.8;
8.8.4.4;
};
};
zone "." {
type hint;
file "root.hints";
};
zone "0.0.127.in-addr.arpa" {
type master;
file "pz/127.0.0";
};
## zone "30.172.IN-ADDR.ARPA" {
## type master;
## file "/etc/namedb/db.30.172";
## };
zone "24.30.172.IN-ADDR.ARPA" {
type master;
file "/etc/namedb/db.24.30.172";
};
// Bind 9 now logs by default through syslog (except debug).
// These are the default logging rules.
logging {
category default { default_syslog; default_debug; };
category unmatched { null; };
channel default_syslog {
syslog daemon; // send to syslog's daemon
// facility
severity info; // only send priority info
// and higher
};
channel default_debug {
file "named.run"; // write to named.run in
// the working directory
// Note: stderr is used instead
// of "named.run"
// if the server is started
// with the '-f' option.
severity dynamic; // log at the server's
// current debug level
};
channel default_stderr {
stderr; // writes to stderr
severity info; // only send priority info
// and higher
};
channel null {
null; // toss anything sent to
// this channel
};
};