8 Linux Iwo (Alaye Groper Alaye) Aṣẹ si Ibeere DNS
Ninu nkan ti o kẹhin wa a ti fihan ọ julọ awọn aṣẹ 8 Nslookup ti a lo julọ pẹlu awọn apẹẹrẹ wọn, ni bayi a wa pẹlu ọpa laini aṣẹ miiran ti a pe ni Dig, eyiti o jọra pupọ si ọpa Linux Nslookup. A yoo wo lilo aṣẹ pipa ni pẹkipẹki pẹlu awọn apẹẹrẹ wọn bi a ṣe han ni isalẹ.
Iwo duro fun (Alaye Alaye Groper) jẹ ọpa laini aṣẹ iṣakoso nẹtiwọọki kan fun wiwa awọn olupin Orukọ Orukọ ase (DNS). O wulo fun ṣiṣayẹwo ati laasigbotitusita awọn iṣoro DNS ati tun lati ṣe awọn iṣawari DNS ati ṣafihan awọn idahun ti o pada lati olupin orukọ ti a beere. iwo jẹ apakan ti BIND ašẹ orukọ olupin olupin suite. pipaṣẹ iwo rọpo ohun elo agbalagba bi nslookup ati olugbalejo. irinṣẹ iwo wa ni awọn pinpin kaakiri Linux.
# dig yahoo.com; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <<>> yahoo.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<
Loke aṣẹ fa awọn iwo lati wo igbasilẹ “A” fun orukọ ìkápá naa yahoo.com. Paṣẹ ka ka faili /etc/resolv.conf ati wiwa awọn olupin DNS ti a ṣe akojọ sibẹ. Idahun lati ọdọ olupin DNS jẹ ohun ti iwo awọn ifihan.
- Awọn ila ti o bẹrẹ pẹlu; jẹ awọn asọye ti kii ṣe apakan alaye naa. Laini akọkọ sọ fun wa ẹya ti iwo (9.8.2) pipaṣẹ.
- Itele, iwo fihan akọle ti idahun ti o gba lati olupin DNS
- Nigbamii ti o wa apakan ibeere, eyiti o sọ fun wa ni ibeere ni ibeere, eyiti ninu ọran yii jẹ ibeere fun igbasilẹ “A” ti yahoo.com. IN tumọ si pe eyi jẹ wiwa Ayelujara (ni kilasi Ayelujara).
- Abala idahun sọ fun wa pe yahoo.com ni adiresi IP naa 72.30.38.140 Ni ipari Ni awọn iṣiro kan wa nipa ibeere naa. O le pa awọn iṣiro wọnyi nipa lilo aṣayan + nostats.
Nipa aiyipada iwo jẹ ọrọ ọrọ gangan. Ọna kan lati ge iṣẹjade ni lati lo aṣayan + kukuru. eyi ti yoo ge jade iṣẹjade bi a ṣe han ni isalẹ.
# dig yahoo.com +short 98.139.183.24 72.30.38.140 98.138.253.109
Akiyesi: Nipa iwo iwo aiyipada n wa igbasilẹ “A” ti agbegbe ti a ṣalaye, ṣugbọn o le ṣafihan awọn igbasilẹ miiran tun. Igbasilẹ MX tabi Mail eXchange naa sọ fun awọn olupin meeli bi o ṣe le ṣe itọsọna imeeli fun ìkápá naa. Bakanna TTL, SOA abbl.
Wiwa awọn oriṣiriṣi oriṣi ti awọn igbasilẹ awọn orisun DNS nikan.
# dig yahoo.com MX ; <> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <> yahoo.com MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31450 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 24 ;; QUESTION SECTION: ;yahoo.com. IN MX ;; ANSWER SECTION: yahoo.com. 33 IN MX 1 mta6.am0.yahoodns.net. yahoo.com. 33 IN MX 1 mta7.am0.yahoodns.net. yahoo.com. 33 IN MX 1 mta5.am0.yahoodns.net.
# dig yahoo.com SOA ; <> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <> yahoo.com SOA ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2197 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 7, ADDITIONAL: 7 ;; QUESTION SECTION: ;yahoo.com. IN SOA ;; ANSWER SECTION: yahoo.com. 1800 IN SOA ns1.yahoo.com. hostmaster.yahoo-inc.com. 2012081409 3600 300 1814400 600
# dig yahoo.com TTL ; <> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <> yahoo.com TTL ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56156 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;yahoo.com. IN A ;; ANSWER SECTION: yahoo.com. 3589 IN A 98.138.253.109 yahoo.com. 3589 IN A 98.139.183.24 yahoo.com. 3589 IN A 72.30.38.140
# dig yahoo.com +nocomments +noquestion +noauthority +noadditional +nostats ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> yahoo.com +nocomments +noquestion +noauthority +noadditional +nostats ;; global options: +cmd yahoo.com. 3442 IN A 72.30.38.140 yahoo.com. 3442 IN A 98.138.253.109 yahoo.com. 3442 IN A 98.139.183.24
# dig yahoo.com ANY +noall +answer ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> yahoo.com ANY +noall +answer ;; global options: +cmd yahoo.com. 3509 IN A 72.30.38.140 yahoo.com. 3509 IN A 98.138.253.109 yahoo.com. 3509 IN A 98.139.183.24 yahoo.com. 1709 IN MX 1 mta5.am0.yahoodns.net. yahoo.com. 1709 IN MX 1 mta6.am0.yahoodns.net. yahoo.com. 1709 IN MX 1 mta7.am0.yahoodns.net. yahoo.com. 43109 IN NS ns2.yahoo.com. yahoo.com. 43109 IN NS ns8.yahoo.com. yahoo.com. 43109 IN NS ns3.yahoo.com. yahoo.com. 43109 IN NS ns1.yahoo.com. yahoo.com. 43109 IN NS ns4.yahoo.com. yahoo.com. 43109 IN NS ns5.yahoo.com. yahoo.com. 43109 IN NS ns6.yahoo.com.
Querying DNS Yiyipada Wiwa-soke. Nikan apakan idahun ifihan pẹlu lilo + kukuru.
# dig -x 72.30.38.140 +short ir1.fp.vip.sp2.yahoo.com.
Ibeere ibeere ibeere kan pato DNS ti oju opo wẹẹbu ọpọ. Awọn igbasilẹ MX, NS ati bẹbẹ lọ.
# dig yahoo.com mx +noall +answer redhat.com ns +noall +answer ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> yahoo.com mx +noall +answer redhat.com ns +noall +answer ;; global options: +cmd yahoo.com. 1740 IN MX 1 mta6.am0.yahoodns.net. yahoo.com. 1740 IN MX 1 mta7.am0.yahoodns.net. yahoo.com. 1740 IN MX 1 mta5.am0.yahoodns.net. redhat.com. 132 IN NS ns1.redhat.com. redhat.com. 132 IN NS ns4.redhat.com. redhat.com. 132 IN NS ns3.redhat.com. redhat.com. 132 IN NS ns2.redhat.com.
Ṣẹda faili .digrc labẹ $HOME/.digrc lati tọju awọn aṣayan iwo aiyipada.
# dig yahoo.com yahoo.com. 3427 IN A 72.30.38.140 yahoo.com. 3427 IN A 98.138.253.109 yahoo.com. 3427 IN A 98.139.183.24
A ni awọn aṣayan idahun + itaja + gbogbo + titilai ni faili .digrc labẹ ilana itọsọna ile olumulo. Bayi, nigbakugba ti aṣẹ iwo ba ṣiṣẹ o yoo han apakan idahun nikan ti iṣẹjade iwo. Ko si iwulo lati tẹ awọn aṣayan gbogbo-akoko bi + noall + idahun.
Ninu nkan yii, a gbiyanju lati wa aṣẹ iwo ti o le ṣe iranlọwọ fun ọ lati wa (DNS) Alaye Iṣẹ ti o ni ibatan Orukọ. Pin awọn ero rẹ nipasẹ apoti asọye.