O comando rndc (Remote Named Daemon Control) é uma ferramenta de gerenciamento do named.
A vantagem dessa ferramenta é que ela permite controlar o named muito facilmente sem ter que ficar enviando sinais ao processo do mesmo.
root@ns1:~# rndc status version: 9.8.4-rpz2+rl005.12-P1 CPUs found: 1 worker threads: 1 number of zones: 19 debug level: 0 xfers running: 0 xfers deferred: 0 soa queries in progress: 0 query logging is OFF recursive clients: 0/0/1000 tcp clients: 0/100 server is up and running
root@ns1:~# host uol.com.br uol.com.br has address 200.221.2.45 uol.com.br has address 200.147.67.142 uol.com.br has IPv6 address 2804:49c:3103:401:ffff:ffff:ffff:1 uol.com.br mail is handled by 10 mx.uol.com.br.
root@ns1:~# rndc dumpdb -cache root@ns1:~# cat /var/cache/bind/named_dump.db ; ; Start view _default ; ; ; Cache dump of view '_default' (cache _default) ; $DATE 20160707181853 ; secure . 518380 IN NS a.root-servers.net. 518380 IN NS b.root-servers.net. 518380 IN NS c.root-servers.net. 518380 IN NS d.root-servers.net. 518380 IN NS e.root-servers.net. 518380 IN NS f.root-servers.net. 518380 IN NS g.root-servers.net. 518380 IN NS h.root-servers.net. 518380 IN NS i.root-servers.net. 518380 IN NS j.root-servers.net. 518380 IN NS k.root-servers.net. 518380 IN NS l.root-servers.net. 518380 IN NS m.root-servers.net. ; secure 518380 RRSIG NS 8 0 518400 20160717050000 ( 20160707040000 46551 . nUnFCINtw2sozbBllr2kOKtxBKYyq1J/tHlS jOhxDuV5vnaX8qD67H91JjudBBbw/M/wrOsr cotHCUMD1kGpc8fW/nFjzBKD6MS4YkVL/PRS 9Lek6b6bQMjQwqnFWa6pT7fNEblAZhqWTz9+ PBherhBim5rc0cF16tZSAs7i0HY= ) ; secure 172780 DNSKEY 256 3 8 ( AwEAAarQO0FTE/l6LEKFlZllJIwXuLGd3q5d 8S8NH+ntOeIMN81A5wAI18g3u9w/esNkThwg XTEa2mX1iOPdTcl3yRleAExxF22lEU2E0GKY 2XdYr/BxP5fojJAPRgtEGDl72NSwSnD2/a8u PNirAJZoab36Hlw41QxEl7bmCo0280mt ) 172780 DNSKEY 256 3 8 ( AwEAAcCsATzyk1Hj1xabagAGWi9sZSbB+igd zDM8CMZ5fPcOb314yP9/lmvidoBuApPlMVwl z0lXaj6gzyjoOKBveoDD0VyHTqjCDg9UrcDo ClNZciR2sHZoaMZp2yVNFyaC+7MkA8lsrCSh ieYPEowSjQdkvY5ONlEib/ATXdmAhfgB ) 172780 DNSKEY 257 3 8 ( AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxh JhVVLOyQbSEW0O8gcCjFFVQUTf6v58fLjwBd 0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJR kxoXbfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/V HL496M/QZxkjf5/Efucp2gaDX6RS6CXpoY68 LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtu A6G3LQpzW5hOA2hzCTMjJPJ8LbqF6dsV6DoB Qzgul0sGIcGOYl7OyQdXfZ57relSQageu+ip AdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwh YB4N7knNnulqQxA+Uk1ihz0= ) ; secure 172780 RRSIG DNSKEY 8 0 172800 20160715235959 ( 20160701000000 19036 . LxIZ5WIpkDYD3eMcteZeU4LFnra6CkVQm2Ez ufOC68yBG/RL0jbYDHkHWKeFSA05MFyMTTFz eTTYH9qT/7EA+2hceaft4bs27ZnF8+nMrpnZ fKoIJbcf7ZuK5sMpRcNxmiTw2GrPAJ+R2JQ8 WTOZ1r8K3xqfVb9IHqqBGviAHDMVzvDtRf2P 8ewAaGVDpNKL/BoMMQyrKo5y7p7nl8FpTKis /VNeLBtsXnMkCrENVQbVjJIctZ3LyZ/U6Ib4 uGK5lueFrHmzsSdKbEeAtiuSPwp3iXNcGrQr seCeHVemrBCrMIvO1dKe7rePJtoRcmUTvZ9O dqjSf/AjLDoH16ZxjA== ) ; glue br. 172780 NS a.dns.br. 172780 NS b.dns.br. 172780 NS c.dns.br. 172780 NS d.dns.br. 172780 NS e.dns.br. 172780 NS f.dns.br. ; secure 86380 DS 45673 5 2 ( 14369AD309CC59FD59C1A422BA93B71F2C52 2BF3672C2E067B2C53F53AE522DF ) ; secure 86380 RRSIG DS 8 1 86400 20160717050000 ( 20160707040000 46551 . QJSEJQGBKoD9q/5c32T4Twf9xQPpSirCQCIA yK9aq7EfPug1nkWCsodB55AD9+uXhmMOsXo8 deex/muUvEjiH+Q1k+R6VVfvUrrKmEl89qcS VyKEqTlbmJIxYvk5wlHoSrCuKyEevei52VT1 JqLMVkan8x56ZTgo+U9Zdkis3Bw= ) ; secure 21580 DNSKEY 256 3 5 ( AwEAAd7Zl13hkDX7ZLkKujaJBzjEZ91Cl2D4 dz3RsQabjweb8AvZGS4BHgA7Rny38NkO7gkz 7Z05UIq06FEHaP2f2Qh1xdr6lh9I+ikU3vS9 stU6KkzHyBEGeW0xwu6DnVGdArKgGrUrozg4 NGNZwplRw5bbH+r4pFH5doGUMzGncJcPIMPT 4AEdcoGjKD7U/oa5m5KnHETJCKyshcdVA9Fb xoM= ) 21580 DNSKEY 257 3 5 ( AwEAAcI4lmmfVdBv8+FH1l6EZmPokGgih7wa DvX+oYjwNJJA+uy827KKDaiXBI3kGidQ3Rka PjYVX1Amkcp6c78n7l9m/PDmpckOJSV7X2/5 FmYPa+Rz6hTl3+qQDSlWmCA9M5TZfsArS/Oj A5eNoImXYl/anNEkoePn2OvX66Byx9+f3zro yb8PSAmul5miVUv9ePfDJw7wSXjzg39fd3MT vEXzYPyq8mwWygh6wh5JfVVczbKmiErtfflp roepEvhMZw== ) ; secure 21580 RRSIG DNSKEY 5 1 21600 20160722090000 ( 20160701090000 45673 br. AWEt525EENMnK1UwSZCTQBNFStgNcUiK2Kp/ BAJpNPZXR7RE86A2xHmFp95QdN1NN+cceY5p Kv/Ksj6wikkSoANeiU1jyN8AgpWWRrypAoGG f1O2X6g4tO2p9bX3Ik0+Ulkjq/R6DzPBrjvj 3YmqAwwcEC+Jt7eDWg1iu/mXf6iHcZDDh92D 5h6vnhePNgI99H29pnZGbLbvrpU7iMkhpdL0 HEJ0fdANaEyiWk7WAGnJADSf981h22zU+r0i 1lh9 ) ; secure com.br. 86380 DS 29910 7 1 ( 293B22F9F1FCE5CC8555A9E512CBAA63596D 29E6 ) ; secure 86380 RRSIG DS 5 2 86400 20160712100001 ( 20160705100001 690 br. Xo/7Ar1TzsOulcXRenA4oZIcZYlnZYBH21Ks I4Vlx7+DWIzhpm4t5eszlYsX6M5COk5tFNOR UFe9/A0QJxvbZ7QYBJMTTJJy++aXqhIR8PPk waLR7ZXoK6Zipen9BdV49Nw7XErQRutJC7F+ PFF9dv2UM8d2cSl+OJ2eEDys1Kf0YAbvKA+2 GahFRZ5aVOeG2FwvUeLpkLn+Imui77oYWw== ) ; secure 21580 DNSKEY 257 3 7 ( AwEAAc0hGy6wBkyH26rTzl61spDuVLTeXhuQ W1ff9RV58k3YnWH8wfcRxgbgExbMT+6s93H6 j2HqYhfp5Jk9v1IdEqQ3y8xMRnwv75GHlVxF 8WMe9DPjkifEgNjfR/TpupcEGE7GVQc3NyMC PWISkqaLtazvQxqsqfV5vqfUoGvNotHoFqat xmMwWFird2R70grXe+ITFyQtmSFNkMh8gc/b z+s= ) ; secure 21580 RRSIG DNSKEY 7 2 21600 20160712100001 ( 20160705100001 29910 com.br. vqCll3RLuWJ7vig0ZUS3Gfm72bYPfWwTA6hd N6auDQpqKTBdg8m9YkhD1MP5vhp4HVckMJoc GdvI6l7RlYwSIPk5jEBAr5Zlcqc/9nxvhmSI P68jlLOm+x/tpfryRX3KXHaz9+ueR9dDzoXt ez1SL6XtGOaHOfqS2GPDrwsv8ndaWIyo8HXM oVWvtDI5DWZaWuCRF4l5LwN5rS6pAIFH1Q== ) ; glue uol.com.br. 86380 NS eliot.uol.com.br. 86380 NS borges.uol.com.br. 86380 NS charles.uol.com.br. ; secure 880 \-DS ;-$NXRRSET ; com.br. SOA a.dns.br. hostmaster.registro.br. 2016070772 1800 900 604800 900 ; com.br. RRSIG SOA ... ; c8mkvp1eqrpl6srln4vnj8vq89qrse04.com.br. RRSIG NSEC3 ... ; c8mkvp1eqrpl6srln4vnj8vq89qrse04.com.br. NSEC3 1 1 10 E2D85A60D942192D32D8 C8MO3CH3GGRULO5RJ2MRJHBFGITR1I0I NS DS RRSIG ; mut5dh6uuq4bugev2vfc8ispm4pinvs7.com.br. RRSIG NSEC3 ... ; mut5dh6uuq4bugev2vfc8ispm4pinvs7.com.br. NSEC3 1 1 10 E2D85A60D942192D32D8 MUT5THM1R0MCRUOIL84QF51JDKOLDAMH NS SOA RRSIG DNSKEY NSEC3PARAM ; answer 280 A 200.147.67.142 280 A 200.221.2.45 ; answer 17980 MX 10 mx.uol.com.br. ; answer 280 AAAA 2804:49c:3103:401:ffff:ffff:ffff:1 ; glue borges.uol.com.br. 86380 A 200.147.255.105 ; glue charles.uol.com.br. 86380 A 200.147.38.8 ; glue eliot.uol.com.br. 86380 A 200.221.11.98 ; glue a.dns.br. 172780 A 200.160.0.10 ; glue 172780 AAAA 2001:12ff::10 ; glue b.dns.br. 172780 A 200.189.41.10 ; glue c.dns.br. 172780 A 200.192.233.10 ; glue d.dns.br. 172780 A 200.219.154.10 ; glue 172780 AAAA 2001:12f8:4::10 ; glue e.dns.br. 172780 A 200.229.248.10 ; glue 172780 AAAA 2001:12f8:1::10 ; glue f.dns.br. 172780 A 200.219.159.10 ; ; Address database dump ; ; ; Unassociated entries ; ; 199.7.83.42 [srtt 10] [flags 00000000] [ttl 1780] ; 198.41.0.4 [srtt 25] [flags 00000000] [ttl 1780] ; 2001:500:2f::f [srtt 12] [flags 00000000] [ttl 1780] ; 2001:7fd::1 [srtt 25] [flags 00000000] [ttl 1780] ; 200.219.154.10 [srtt 12910] [flags 00002000] [ttl 1780] ; 192.203.230.10 [srtt 102093] [flags 00002000] [ttl 1780] ; 200.192.233.10 [srtt 12527] [flags 00002000] [ttl 1780] ; 2001:dc3::35 [srtt 5] [flags 00000000] [ttl 1780] ; 2001:12f8:4::10 [srtt 22] [flags 00000000] [ttl 1780] ; 192.228.79.201 [srtt 11] [flags 00000000] [ttl 1780] ; 192.112.36.4 [srtt 15] [flags 00000000] [ttl 1780] ; 202.12.27.33 [srtt 16] [flags 00000000] [ttl 1780] ; 192.33.4.12 [srtt 6] [flags 00000000] [ttl 1780] ; 2001:7fe::53 [srtt 18] [flags 00000000] [ttl 1780] ; 200.147.38.8 [srtt 14014] [flags 00002000] [ttl 1780] ; 2001:500:1::803f:235 [srtt 10] [flags 00000000] [ttl 1780] ; 128.63.2.53 [srtt 25] [flags 00000000] [ttl 1780] ; 200.219.159.10 [srtt 14589] [flags 00002000] [ttl 1780] ; 200.147.255.105 [srtt 14050] [flags 00002000] [ttl 1780] ; 200.221.11.98 [srtt 14646] [flags 00002000] [ttl 1780] ; 2001:503:ba3e::2:30 [srtt 11] [flags 00000000] [ttl 1780] ; 192.58.128.30 [srtt 21] [flags 00000000] [ttl 1780] ; 199.7.91.13 [srtt 16] [flags 00000000] [ttl 1780] ; 200.229.248.10 [srtt 2866] [flags 00002000] [ttl 1780] ; 2001:503:c27::2:30 [srtt 17] [flags 00000000] [ttl 1780] ; 2001:12f8:1::10 [srtt 21] [flags 00000000] [ttl 1780] ; 2001:12ff::10 [srtt 200010] [flags 00002000] [ttl 1780] ; 200.189.41.10 [srtt 12114] [flags 00002000] [ttl 1780] ; 2001:500:3::42 [srtt 7] [flags 00000000] [ttl 1780] ; 193.0.14.129 [srtt 85738] [flags 00002000] [ttl 1780] ; 200.160.0.10 [srtt 19] [flags 00000000] [ttl 1780] ; 192.36.148.17 [srtt 10] [flags 00000000] [ttl 1780] ; 192.5.5.241 [srtt 7] [flags 00000000] [ttl 1780] ; 2001:500:2d::d [srtt 26] [flags 00000000] [ttl 1780] ; ; Bad cache ; ; ; Start view _bind ; ; ; Cache dump of view '_bind' (cache _bind) ; $DATE 20160707181853 ; ; Address database dump ; ; ; Unassociated entries ; ; ; Bad cache ; ; Dump complete
root@ns1:~# grep uol /var/cache/bind/named_dump.db uol.com.br. 86380 NS eliot.uol.com.br. 86380 NS borges.uol.com.br. 86380 NS charles.uol.com.br. 17980 MX 10 mx.uol.com.br. borges.uol.com.br. 86380 A 200.147.255.105 charles.uol.com.br. 86380 A 200.147.38.8 eliot.uol.com.br. 86380 A 200.221.11.98
root@ns1:~# rndc flush root@ns1:~# rndc dumpdb -cache root@ns1:~# grep uol /var/cache/bind/named_dump.db root@ns1:~# cat /var/cache/bind/named_dump.db ; ; Start view _default ; ; ; Cache dump of view '_default' (cache _default) ; $DATE 20160707182122 ; ; Address database dump ; ; ; Unassociated entries ; ; ; Bad cache ; ; ; Start view _bind ; ; ; Cache dump of view '_bind' (cache _bind) ; $DATE 20160707182122 ; ; Address database dump ; ; ; Unassociated entries ; ; ; Bad cache ; ; Dump complete