{"id":477,"date":"2011-10-23T18:25:34","date_gmt":"2011-10-23T16:25:34","guid":{"rendered":""},"modified":"2018-11-11T18:49:33","modified_gmt":"2018-11-11T17:49:33","slug":"how-find-right-server-nslookup-and-dig-dns-command-line-tools","status":"publish","type":"post","link":"https:\/\/nil.uniza.sk\/en\/how-find-right-server-nslookup-and-dig-dns-command-line-tools\/","title":{"rendered":"How to find a right server – nslookup and dig dns command line tools"},"content":{"rendered":"

A simple comparison of the nslookup <\/strong><\/em>command, the Microsoft DNS tool, and dig<\/strong><\/em>, the linux\/win based command alternative.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
How to find the root servers?<\/span><\/td>\n<\/tr>\n
Using nslookup<\/span><\/td>\nusing dig<\/span><\/td>\n<\/tr>\n
\u00a0C:\\Users\\palo>nslookup
\nDefault Server: iris.isp.kx.sk
\nAddress: 85.248.45.238<\/span>> set type=ns
\n> .<\/strong>
\nServer: iris.isp.kx.sk
\nAddress: 85.248.45.238<\/span><\/p>\n

Non-authoritative answer:
\n(root) nameserver = g.root-servers.net
\n(root) nameserver = i.root-servers.net
\n(root) nameserver = a.root-servers.net
\n(root) nameserver = h.root-servers.net
\n(root) nameserver = k.root-servers.net
\n(root) nameserver = c.root-servers.net
\n(root) nameserver = f.root-servers.net
\n(root) nameserver = e.root-servers.net
\n(root) nameserver = l.root-servers.net
\n(root) nameserver = m.root-servers.net
\n(root) nameserver = b.root-servers.net
\n(root) nameserver = j.root-servers.net
\n(root) nameserver = d.root-servers.net<\/span><\/p>\n

a.root-servers.net internet address = 198.41.0.4
\na.root-servers.net AAAA IPv6 address = 2001:503:ba3e::2:30
\nj.root-servers.net internet address = 192.58.128.30
\nj.root-servers.net AAAA IPv6 address = 2001:503:c27::2:30
\nd.root-servers.net internet address = 128.8.10.90<\/span><\/p>\n

\u00a0alternatively we may use<\/span><\/p>\n

C:\\Users\\palo>nslookup -q=ns .<\/span><\/p>\n

\u00a0<\/span><\/td>\n

\u00a0C:\\Users\\palo>dig ns .<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> ns .
\n;; global options: printcmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 466
\n;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 5<\/span><\/p>\n

;; QUESTION SECTION:
\n;. IN NS<\/span><\/p>\n

;; ANSWER SECTION:
\n. 155728 IN NS i.root-servers.net.
\n. 155728 IN NS c.root-servers.net.
\n. 155728 IN NS b.root-servers.net.
\n. 155728 IN NS e.root-servers.net.
\n. 155728 IN NS k.root-servers.net.
\n. 155728 IN NS d.root-servers.net.
\n. 155728 IN NS f.root-servers.net.
\n. 155728 IN NS m.root-servers.net.
\n. 155728 IN NS l.root-servers.net.
\n. 155728 IN NS j.root-servers.net.
\n. 155728 IN NS h.root-servers.net.
\n. 155728 IN NS g.root-servers.net.
\n. 155728 IN NS a.root-servers.net.<\/span><\/p>\n

;; ADDITIONAL SECTION:
\na.root-servers.net. 69324 IN A 198.41.0.4
\na.root-servers.net. 600930 IN AAAA 2001:503:ba3e::2:30
\nj.root-servers.net. 242128 IN A 192.58.128.30
\nj.root-servers.net. 242128 IN AAAA 2001:503:c27::2:30
\nd.root-servers.net. 603948 IN A 128.8.10.90<\/span><\/p>\n

;; Query time: 83 msec
\n;; SERVER: 85.248.45.238#53(85.248.45.238)
\n;; WHEN: Sun Oct 23 19:58:13 2011
\n;; MSG SIZE rcvd: 332<\/span><\/p>\n

 <\/td>\n<\/tr>\n

\u00a0How to find autoritative name servers for top level domain sk.\u00a0<\/span><\/td>\n<\/tr>\n
\u00a0<\/span>> set type=ns
\n> sk.
\nServer: iris.isp.kx.sk
\nAddress: 85.248.45.238<\/span>Non-authoritative answer:
\nsk nameserver = ns1.sk-nic.sk
\nsk nameserver = sns-pb.isc.org
\nsk nameserver = ns.eunet.sk
\nsk nameserver = ns.uu.net
\nsk nameserver = sunic.sunet.se
\nsk nameserver = ns.sk-nic.sk
\nsk nameserver = c.tld.sk
\nsk nameserver = ns3.sk-nic.sk<\/span><\/p>\n

ns.sk-nic.sk internet address = 195.12.159.2
\nns3.sk-nic.sk internet address = 217.75.67.234
\nsunic.sunet.se internet address = 192.36.125.2
\nns.uu.net internet address = 137.39.1.3
\nns.eunet.sk internet address = 217.75.73.242
\nc.tld.sk internet address = 217.75.72.157
\nns1.sk-nic.sk internet address = 195.12.159.3<\/span><\/p>\n

 <\/p>\n

\u00a0<\/span><\/td>\n

\u00a0<\/span>C:\\Users\\palo>dig ns sk.<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> ns sk.
\n;; global options: printcmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 353
\n;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 7<\/span><\/p>\n

;; QUESTION SECTION:
\n;sk. IN NS<\/span><\/p>\n

;; ANSWER SECTION:
\nsk. 82728 IN NS ns.sk-nic.sk.
\nsk. 82728 IN NS sunic.sunet.se.
\nsk. 82728 IN NS ns3.sk-nic.sk.
\nsk. 82728 IN NS ns1.sk-nic.sk.
\nsk. 82728 IN NS c.tld.sk.
\nsk. 82728 IN NS ns.uu.net.
\nsk. 82728 IN NS ns.eunet.sk.
\nsk. 82728 IN NS sns-pb.isc.org.<\/span><\/p>\n

;; ADDITIONAL SECTION:
\nns.sk-nic.sk. 58440 IN A 195.12.159.2
\nns3.sk-nic.sk. 58440 IN A 217.75.67.234
\nsunic.sunet.se. 14406 IN A 192.36.125.2
\nns.uu.net. 2617 IN A 137.39.1.3
\nns.eunet.sk. 61232 IN A 217.75.73.242
\nc.tld.sk. 61232 IN A 217.75.72.157
\nns1.sk-nic.sk. 58440 IN A 195.12.159.3<\/span><\/p>\n

;; Query time: 68 msec
\n;; SERVER: 85.248.45.238#53(85.248.45.238)
\n;; WHEN: Sun Oct 23 19:59:50 2011
\n;; MSG SIZE rcvd: 314<\/span><\/p>\n

 <\/td>\n<\/tr>\n

\u00a0How to find MX exchanger for a domain?<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
\u00a0<\/span>> set type=mx
\n> kis.fri.uniza.sk
\nServer: iris.isp.kx.sk
\nAddress: 85.248.45.238<\/span>Non-authoritative answer:
\nkis.fri.uniza.sk MX preference = 10, mail exchanger = relay.uniza.sk<\/span><\/p>\n

kis.fri.uniza.sk nameserver = frix.fri.uniza.sk
\nkis.fri.uniza.sk nameserver = ns.kis.fri.uniza.sk
\nkis.fri.uniza.sk nameserver = kinfo.fri.uniza.sk
\nfrix.fri.uniza.sk internet address = 158.193.138.40
\nns.kis.fri.uniza.sk internet address = 158.193.152.2
\nns.kis.fri.uniza.sk AAAA IPv6 address = 2001:4118:300:120::2
\nkinfo.fri.uniza.sk internet address = 158.193.138.7<\/span><\/p>\n

 <\/p>\n

\u00a0<\/span><\/td>\n

\u00a0<\/span>C:\\Users\\palo>dig mx kis.fri.uniza.sk<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> mx kis.fri.uniza.sk
\n;; global options: printcmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 910
\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4<\/span><\/p>\n

;; QUESTION SECTION:
\n;kis.fri.uniza.sk. IN MX<\/span><\/p>\n

;; ANSWER SECTION:
\nkis.fri.uniza.sk. 3578 IN MX 10 relay.uniza.sk.<\/span><\/p>\n

;; AUTHORITY SECTION:
\nkis.fri.uniza.sk. 2587 IN NS ns.kis.fri.uniza.sk.
\nkis.fri.uniza.sk. 2587 IN NS frix.fri.uniza.sk.
\nkis.fri.uniza.sk. 2587 IN NS kinfo.fri.uniza.sk.<\/span><\/p>\n

;; ADDITIONAL SECTION:
\nfrix.fri.uniza.sk. 46997 IN A 158.193.138.40
\nns.kis.fri.uniza.sk. 2453 IN A 158.193.152.2
\nns.kis.fri.uniza.sk. 2453 IN AAAA 2001:4118:300:120::2
\nkinfo.fri.uniza.sk. 28409 IN A 158.193.138.7<\/span><\/p>\n

;; Query time: 77 msec
\n;; SERVER: 85.248.45.238#53(85.248.45.238)
\n;; WHEN: Sun Oct 23 20:01:38 2011
\n;; MSG SIZE rcvd: 188<\/span><\/p>\n

 <\/p>\n

\u00a0<\/span><\/td>\n<\/tr>\n

\u00a0How to find zone information?<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
\u00a0C:\\Users\\palo>dig mx kis.fri.uniza.sk<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> mx kis.fri.uniza.sk
\n;; global options: printcmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 910
\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4<\/span><\/p>\n

;; QUESTION SECTION:
\n;kis.fri.uniza.sk. IN MX<\/span><\/p>\n

;; ANSWER SECTION:
\nkis.fri.uniza.sk. 3578 IN MX 10 relay.uniza.sk.<\/span><\/p>\n

;; AUTHORITY SECTION:
\nkis.fri.uniza.sk. 2587 IN NS ns.kis.fri.uniza.sk.
\nkis.fri.uniza.sk. 2587 IN NS frix.fri.uniza.sk.
\nkis.fri.uniza.sk. 2587 IN NS kinfo.fri.uniza.sk.<\/span><\/p>\n

;; ADDITIONAL SECTION:
\nfrix.fri.uniza.sk. 46997 IN A 158.193.138.40
\nns.kis.fri.uniza.sk. 2453 IN A 158.193.152.2
\nns.kis.fri.uniza.sk. 2453 IN AAAA 2001:4118:300:120::2
\nkinfo.fri.uniza.sk. 28409 IN A 158.193.138.7<\/span><\/p>\n

;; Query time: 77 msec
\n;; SERVER: 85.248.45.238#53(85.248.45.238)
\n;; WHEN: Sun Oct 23 20:01:38 2011
\n;; MSG SIZE rcvd: 188<\/span><\/p>\n

 <\/td>\n

\u00a0C:\\Users\\palo>dig soa kis.fri.uniza.sk<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> soa kis.fri.uniza.sk
\n;; global options: printcmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1906
\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4<\/span><\/p>\n

;; QUESTION SECTION:
\n;kis.fri.uniza.sk. IN SOA<\/span><\/p>\n

;; ANSWER SECTION:
\nkis.fri.uniza.sk. 3551 IN SOA ns.kis.fri.uniza.sk. hostmaster.
\nkis.fri.uniza.sk. 2011092801 10800 3600 1209600 3600<\/span><\/p>\n

;; AUTHORITY SECTION:
\nkis.fri.uniza.sk. 84 IN NS frix.fri.uniza.sk.
\nkis.fri.uniza.sk. 84 IN NS ns.kis.fri.uniza.sk.
\nkis.fri.uniza.sk. 84 IN NS kinfo.fri.uniza.sk.<\/span><\/p>\n

;; ADDITIONAL SECTION:
\nns.kis.fri.uniza.sk. 3551 IN A 158.193.152.2
\nns.kis.fri.uniza.sk. 3551 IN AAAA 2001:4118:300:120::2
\nfrix.fri.uniza.sk. 48095 IN A 158.193.138.40
\nkinfo.fri.uniza.sk. 29507 IN A 158.193.138.7<\/span><\/p>\n

;; Query time: 91 msec
\n;; SERVER: 85.248.45.238#53(85.248.45.238)
\n;; WHEN: Sun Oct 23 19:43:19 2011
\n;; MSG SIZE rcvd: 213<\/span><\/td>\n<\/tr>\n

\u00a0How to find a service record? Fore example for SIP service?<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
\u00a0> set type=srv
\n> _sip._udp.kis.fri.uniza.sk
\nServer: iris.isp.kx.sk
\nAddress: 85.248.45.238<\/span>Non-authoritative answer:
\n_sip._udp.kis.fri.uniza.sk SRV service location:
\npriority = 0
\nweight = 1
\nport = 5060
\nsvr hostname = voip.kis.fri.uniza.sk<\/span><\/p>\n

kis.fri.uniza.sk nameserver = frix.fri.uniza.sk
\nkis.fri.uniza.sk nameserver = ns.kis.fri.uniza.sk
\nkis.fri.uniza.sk nameserver = kinfo.fri.uniza.sk
\nvoip.kis.fri.uniza.sk internet address = 158.193.152.2
\nfrix.fri.uniza.sk internet address = 158.193.138.40
\nns.kis.fri.uniza.sk internet address = 158.193.152.2
\nns.kis.fri.uniza.sk AAAA IPv6 address = 2001:4118:300:120::2
\nkinfo.fri.uniza.sk internet address = 158.193.138.7<\/span><\/p>\n

 <\/td>\n

\u00a0C:\\Users\\palo>dig srv _sip._udp.kis.fri.uniza.sk<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> srv _sip._udp.kis.fri.uniza.sk
\n;; global options: printcmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1897
\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3<\/span><\/p>\n

;; QUESTION SECTION:
\n;_sip._udp.kis.fri.uniza.sk. IN SRV<\/span><\/p>\n

;; ANSWER SECTION:
\n_sip._udp.kis.fri.uniza.sk. 920 IN SRV 0 1 5060 voip.kis.fri.uniza.sk.<\/span><\/p>\n

;; AUTHORITY SECTION:
\nkis.fri.uniza.sk. 260 IN NS frix.fri.uniza.sk.
\nkis.fri.uniza.sk. 260 IN NS ns.kis.fri.uniza.sk.
\nkis.fri.uniza.sk. 260 IN NS kinfo.fri.uniza.sk.<\/span><\/p>\n

;; ADDITIONAL SECTION:
\nvoip.kis.fri.uniza.sk. 920 IN A 158.193.152.2
\nfrix.fri.uniza.sk. 48271 IN A 158.193.138.40
\nkinfo.fri.uniza.sk. 29683 IN A 158.193.138.7<\/span><\/p>\n

;; Query time: 97 msec
\n;; SERVER: 85.248.45.238#53(85.248.45.238)
\n;; WHEN: Sun Oct 23 19:40:23 2011
\n;; MSG SIZE rcvd: 189<\/span>
\n\u00a0<\/span><\/td>\n<\/tr>\n

\u00a0How to view DNS tracing process?<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
\u00a0<\/span><\/td>\n\u00a0<\/span>C:\\Users\\palo>dig kis.fri.uniza.sk +trace<\/span><\/p>\n

; <<>> DiG 9.3.2 <<>> kis.fri.uniza.sk +trace
\n;; global options: printcmd
\n. 155418 IN NS a.root-servers.net.
\n. 155418 IN NS c.root-servers.net.
\n. 155418 IN NS j.root-servers.net.
\n. 155418 IN NS h.root-servers.net.
\n. 155418 IN NS g.root-servers.net.
\n. 155418 IN NS l.root-servers.net.
\n. 155418 IN NS d.root-servers.net.
\n. 155418 IN NS i.root-servers.net.
\n. 155418 IN NS m.root-servers.net.
\n. 155418 IN NS k.root-servers.net.
\n. 155418 IN NS f.root-servers.net.
\n. 155418 IN NS e.root-servers.net.
\n. 155418 IN NS b.root-servers.net.
\n;; Received 332 bytes from 85.248.45.238#53(85.248.45.238) in 63 ms<\/span><\/p>\n

sk. 172800 IN NS sns-pb.isc.org.
\nsk. 172800 IN NS sunic.sunet.se.
\nsk. 172800 IN NS ns.uu.net.
\nsk. 172800 IN NS c.tld.sk.
\nsk. 172800 IN NS ns.eunet.sk.
\nsk. 172800 IN NS ns.sk-nic.sk.
\nsk. 172800 IN NS ns1.sk-nic.sk.
\nsk. 172800 IN NS ns3.sk-nic.sk.
\n;; Received 428 bytes from 198.41.0.4#53(a.root-servers.net) in 79 ms<\/span><\/p>\n

uniza.sk. 86400 IN NS sun.uakom.sk.
\nuniza.sk. 86400 IN NS proxy.uniza.sk.
\nuniza.sk. 86400 IN NS nic.uniza.sk.
\n;; Received 172 bytes from 192.5.4.1#53(sns-pb.isc.org) in 70 ms<\/span><\/p>\n

fri.uniza.sk. 86400 IN NS nic.uniza.sk.
\nfri.uniza.sk. 86400 IN NS kinfo.fri.uniza.sk.
\n;; Received 132 bytes from 192.108.131.11#53(sun.uakom.sk) in 43 ms<\/span><\/p>\n

kis.fri.uniza.sk. 86400 IN NS frix.fri.uniza.sk.
\nkis.fri.uniza.sk. 86400 IN NS kinfo.fri.uniza.sk.
\nkis.fri.uniza.sk. 86400 IN NS ns.kis.fri.uniza.sk.
\n;; Received 138 bytes from 158.193.48.33#53(nic.uniza.sk) in 49 ms<\/span><\/p>\n

kis.fri.uniza.sk. 3600 IN SOA ns.kis.fri.uniza.sk. host
\nkis.fri.uniza.sk. 2011092801 10800 3600 1209600 3600
\n;; Received 84 bytes from 158.193.138.40#53(frix.fri.uniza.sk) in 43 ms<\/span><\/p>\n

 <\/td>\n<\/tr>\n

\u00a0Command syntax<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n
\u00a0<\/span><\/p>\n

> ?
\nCommands: (identifiers are shown in uppercase, [] means optional)
\nNAME – print info about the host\/domain NAME using default server
\nNAME1 NAME2 – as above, but use NAME2 as server
\nhelp or ? – print info on common commands
\nset OPTION – set an option
\nall – print options, current server and host
\n[no]debug – print debugging information
\n[no]d2 – print exhaustive debugging information
\n[no]defname – append domain name to each query
\n[no]recurse – ask for recursive answer to query
\n[no]search – use domain search list
\n[no]vc – always use a virtual circuit
\ndomain=NAME – set default domain name to NAME
\nsrchlist=N1[\/N2\/…\/N6] – set domain to N1 and search list to N1,N2, etc.
\nroot=NAME – set root server to NAME
\nretry=X – set number of retries to X
\ntimeout=X – set initial time-out interval to X seconds
\ntype=X – set query type (ex. A,AAAA,A+AAAA,ANY,CNAME,MX,NS,PTR,
\nSOA,SRV)
\nquerytype=X – same as type
\nclass=X – set query class (ex. IN (Internet), ANY)
\n[no]msxfr – use MS fast zone transfer
\nixfrver=X – current version to use in IXFR transfer request
\nserver NAME – set default server to NAME, using current default server
\nlserver NAME – set default server to NAME, using initial server
\nroot – set current default server to the root
\nls [opt] DOMAIN [> FILE] – list addresses in DOMAIN (optional: output to FILE)
\n-a – list canonical names and aliases
\n-d – list all records
\n-t TYPE – list records of the given RFC record type (ex. A,CNAME,MX,NS,
\nPTR etc.)
\nview FILE – sort an ‚ls‘ output file and view it with pg
\nexit – exit the program<\/p>\n

 <\/p>\n

 <\/td>\n

\u00a0<\/span><\/p>\n

C:\\Users\\palo>dig -h
\nUsage: dig [@global-server] [domain] [q-type] [q-class] {q-opt}
\n{global-d-opt} host [@local-server] {local-d-opt}
\n[ host [@local-server] {local-d-opt} […]]
\nWhere: domain is in the Domain Name System
\nq-class is one of (in,hs,ch,…) [default: in]
\nq-type is one of (a,any,mx,ns,soa,hinfo,axfr,txt,…) [default:
\n(Use ixfr=version for type ixfr)
\nq-opt is one of:
\n-x dot-notation (shortcut for in-addr lookups)
\n-i (IP6.INT reverse IPv6 lookups)
\n-f filename (batch mode)
\n-b address[#port] (bind to source address\/port)
\n-p port (specify port number)
\n-t type (specify query type)
\n-c class (specify query class)
\n-k keyfile (specify tsig key file)
\n-y name:key (specify named base64 tsig key)
\n-4 (use IPv4 query transport only)
\n-6 (use IPv6 query transport only)
\nd-opt is of the form +keyword[=value], where keyword is:
\n+[no]vc (TCP mode)
\n+[no]tcp (TCP mode, alternate syntax)
\n+time=### (Set query timeout) [5]
\n+tries=### (Set number of UDP attempts) [3]
\n+retry=### (Set number of UDP retries) [2]
\n+domain=### (Set default domainname)
\n+bufsize=### (Set EDNS0 Max UDP packet size)
\n+ndots=### (Set NDOTS value)
\n+[no]search (Set whether to use searchlist)
\n+[no]defname (Ditto)
\n+[no]recurse (Recursive mode)
\n+[no]ignore (Don’t revert to TCP for TC response
\n+[no]fail (Don’t try next server on SERVFAIL)
\n+[no]besteffort (Try to parse even illegal messages)
\n+[no]aaonly (Set AA flag in query (+[no]aaflag))
\n+[no]adflag (Set AD flag in query)
\n+[no]cdflag (Set CD flag in query)
\n+[no]cl (Control display of class in records
\n+[no]cmd (Control display of command line)
\n+[no]comments (Control display of comment lines)
\n+[no]question (Control display of question)
\n+[no]answer (Control display of answer)
\n+[no]authority (Control display of authority)
\n+[no]additional (Control display of additional)
\n+[no]stats (Control display of statistics)
\n+[no]short (Disable everything except short
\nform of answer)
\n+[no]ttlid (Control display of ttls in records)
\n+[no]all (Set or clear all display flags)
\n+[no]qr (Print question before sending)
\n+[no]nssearch (Search all authoritative nameserver
\n+[no]identify (ID responders in short answers)
\n+[no]trace (Trace delegation down from root)
\n+[no]dnssec (Request DNSSEC records)
\n+[no]multiline (Print records in an expanded format
\nglobal d-opts and servers (before host name) affect all queries.
\nlocal d-opts and servers (after host name) affect only that looku
\n-h (print help and exit)
\n-v (print version and exit)<\/span><\/td>\n<\/tr>\n

\u00a0<\/span><\/td>\n\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/span><\/p>\n

—————-<\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

\n\t A simple comparison of the nslookup <\/strong><\/em>command, the Microsoft DNS tool, and dig<\/strong><\/em>, the linux\/win based command alternative.<\/p>\n

\n\t <\/p>","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[697,685],"tags":[],"class_list":["post-477","post","type-post","status-publish","format-standard","hentry","category-ccna-en","category-linux_-_howto-en"],"taxonomy_info":{"category":[{"value":697,"label":"CCNA"},{"value":685,"label":"Linux - HOWTO"}]},"featured_image_src_large":false,"author_info":{"display_name":"admin","author_link":"https:\/\/nil.uniza.sk\/en\/author\/admin\/"},"comment_info":1,"category_info":[{"term_id":697,"name":"CCNA","slug":"ccna-en","term_group":0,"term_taxonomy_id":695,"taxonomy":"category","description":"","parent":695,"count":12,"filter":"raw","cat_ID":697,"category_count":12,"category_description":"","cat_name":"CCNA","category_nicename":"ccna-en","category_parent":695},{"term_id":685,"name":"Linux - HOWTO","slug":"linux_-_howto-en","term_group":0,"term_taxonomy_id":683,"taxonomy":"category","description":"","parent":0,"count":71,"filter":"raw","cat_ID":685,"category_count":71,"category_description":"","cat_name":"Linux - HOWTO","category_nicename":"linux_-_howto-en","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/posts\/477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/comments?post=477"}],"version-history":[{"count":0,"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/posts\/477\/revisions"}],"wp:attachment":[{"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/media?parent=477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/categories?post=477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nil.uniza.sk\/en\/wp-json\/wp\/v2\/tags?post=477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}