📄 nslookup.txt
字号:
Default Server: 50.19.30.218.in-addr.arpa
Address: 218.30.19.50
> root
Default Server: A.ROOT-SERVERS.NET
Address: 198.41.0.4
> set norecurse
> set type=NS
> ux1.sp.cs.cmu.edu
Server: A.ROOT-SERVERS.NET
Address: 198.41.0.4
edu nameserver = M3.NSTLD.COM
edu nameserver = C3.NSTLD.COM
edu nameserver = D3.NSTLD.COM
edu nameserver = E3.NSTLD.COM
edu nameserver = G3.NSTLD.COM
edu nameserver = H3.NSTLD.COM
edu nameserver = L3.NSTLD.COM
edu nameserver = A3.NSTLD.COM
C3.NSTLD.COM internet address = 192.26.92.32
D3.NSTLD.COM internet address = 192.31.80.32
E3.NSTLD.COM internet address = 192.12.94.32
G3.NSTLD.COM internet address = 192.42.93.32
H3.NSTLD.COM internet address = 192.54.112.32
L3.NSTLD.COM internet address = 192.41.162.32
M3.NSTLD.COM internet address = 192.55.83.32
A3.NSTLD.COM internet address = 192.5.6.32
> set type=any
> ux1.sp.cs.cmu.edu 192.42.93.32
Server: [192.42.93.32]
Address: 192.42.93.32
cmu.edu nameserver = AC-TNS-2.NET.cmu.edu
cmu.edu nameserver = NY-SERVER-1.NET.cmu.edu
cmu.edu nameserver = T-NS1.NET.cmu.edu
cmu.edu nameserver = AC-TNS-1.NET.cmu.edu
T-NS1.NET.cmu.edu internet address = 128.2.4.14
AC-TNS-1.NET.cmu.edu internet address = 128.2.1.5
AC-TNS-2.NET.cmu.edu internet address = 128.237.148.165
NY-SERVER-1.NET.cmu.edu internet address = 38.96.147.4
> ux1.sp.cs.cmu.edu 128.2.4.14
Server: [128.2.4.14]
Address: 128.2.4.14
cs.cmu.edu nameserver = AC-DDNS-3.NET.cs.cmu.edu
cs.cmu.edu nameserver = AC-DDNS-1.NET.cs.cmu.edu
cs.cmu.edu nameserver = AC-DDNS-2.NET.cs.cmu.edu
AC-DDNS-1.NET.cs.cmu.edu internet address = 128.2.184.227
AC-DDNS-2.NET.cs.cmu.edu internet address = 128.2.184.228
AC-DDNS-3.NET.cs.cmu.edu internet address = 128.2.184.229
> ux1.sp.cs.cmu.edu 128.2.184.227
Server: [128.2.184.227]
Address: 128.2.184.227
ux1.sp.cs.cmu.edu MX preference = 10, mail exchanger = RAISINBRAN.SRV.cs.c
mu.edu
ux1.sp.cs.cmu.edu MX preference = 99, mail exchanger = FRANKENBERRY.SRV.cs
.cmu.edu
ux1.sp.cs.cmu.edu MX preference = 10, mail exchanger = GRAPENUT.SRV.cs.cmu
.edu
ux1.sp.cs.cmu.edu MX preference = 10, mail exchanger = TOASTIES.SRV.cs.cmu
.edu
ux1.sp.cs.cmu.edu text =
"[GHMX 105810.00#299_IN_MX_99.FRANKENBERRY.SRV.CS.CMU.EDU. j4+G5XItsO6dB
6TAar6Z7w]"
ux1.sp.cs.cmu.edu text =
"[GHMX 105810.00#10_IN_MX_10.GRAPENUT.SRV.CS.CMU.EDU. oI/DViG8UZWADAXWAL
FMpQ]"
ux1.sp.cs.cmu.edu text =
"[GHMX 105810.00#210_IN_MX_10.TOASTIES.SRV.CS.CMU.EDU. z9CpJw3c+NzRYvlWt
Mp2WA]"
ux1.sp.cs.cmu.edu text =
"[GHMX 105810.00#110_IN_MX_10.RAISINBRAN.SRV.CS.CMU.EDU. u5cAtcQM/8D9CAL
kummupQ]"
cs.cmu.edu nameserver = AC-DDNS-3.NET.cs.cmu.edu
cs.cmu.edu nameserver = AC-DDNS-1.NET.cs.cmu.edu
cs.cmu.edu nameserver = AC-DDNS-2.NET.cs.cmu.edu
GRAPENUT.SRV.cs.cmu.edu internet address = 128.2.200.6
TOASTIES.SRV.cs.cmu.edu internet address = 128.2.200.5
RAISINBRAN.SRV.cs.cmu.edu internet address = 128.2.200.9
FRANKENBERRY.SRV.cs.cmu.edu internet address = 128.2.205.243
AC-DDNS-1.NET.cs.cmu.edu internet address = 128.2.184.227
AC-DDNS-2.NET.cs.cmu.edu internet address = 128.2.184.228
AC-DDNS-3.NET.cs.cmu.edu internet address = 128.2.184.229
-------------------------------------------------------------------------------------
What are you able to tell about ux1 from these records?
ux1.sp.cs.cmu.edu have four mail exchangers. Their name and IP is:
GRAPENUT.SRV.cs.cmu.edu internet address = 128.2.200.6
TOASTIES.SRV.cs.cmu.edu internet address = 128.2.200.5
RAISINBRAN.SRV.cs.cmu.edu internet address = 128.2.200.9
FRANKENBERRY.SRV.cs.cmu.edu internet address = 128.2.205.243
-------------------------------------------------------------------------------------
Default Server: 50.19.30.218.in-addr.arpa
Address: 218.30.19.50
> root
Default Server: A.ROOT-SERVERS.NET
Address: 198.41.0.4
> set norecurse
> set type=NS
> ford.com
Server: A.ROOT-SERVERS.NET
Address: 198.41.0.4
com nameserver = E.GTLD-SERVERS.NET
com nameserver = F.GTLD-SERVERS.NET
com nameserver = G.GTLD-SERVERS.NET
com nameserver = H.GTLD-SERVERS.NET
com nameserver = I.GTLD-SERVERS.NET
com nameserver = J.GTLD-SERVERS.NET
com nameserver = K.GTLD-SERVERS.NET
com nameserver = L.GTLD-SERVERS.NET
com nameserver = M.GTLD-SERVERS.NET
com nameserver = A.GTLD-SERVERS.NET
com nameserver = B.GTLD-SERVERS.NET
com nameserver = C.GTLD-SERVERS.NET
com nameserver = D.GTLD-SERVERS.NET
A.GTLD-SERVERS.NET internet address = 192.5.6.30
A.GTLD-SERVERS.NET AAAA IPv6 address = 2001:503:a83e::2:30
B.GTLD-SERVERS.NET internet address = 192.33.14.30
B.GTLD-SERVERS.NET AAAA IPv6 address = 2001:503:231d::2:30
C.GTLD-SERVERS.NET internet address = 192.26.92.30
D.GTLD-SERVERS.NET internet address = 192.31.80.30
E.GTLD-SERVERS.NET internet address = 192.12.94.30
F.GTLD-SERVERS.NET internet address = 192.35.51.30
G.GTLD-SERVERS.NET internet address = 192.42.93.30
H.GTLD-SERVERS.NET internet address = 192.54.112.30
I.GTLD-SERVERS.NET internet address = 192.43.172.30
J.GTLD-SERVERS.NET internet address = 192.48.79.30
K.GTLD-SERVERS.NET internet address = 192.52.178.30
L.GTLD-SERVERS.NET internet address = 192.41.162.30
> set type=any
> ford.com 192.26.92.30
Server: [192.26.92.30]
Address: 192.26.92.30
Non-authoritative answer:
ford.com nameserver = dns005.ford.com
ford.com nameserver = dns006.ford.com
ford.com nameserver = extdns001.ford.com
ford.com nameserver = extdns002.ford.com
ford.com nameserver = dns005.ford.com
ford.com nameserver = dns006.ford.com
ford.com nameserver = extdns001.ford.com
ford.com nameserver = extdns002.ford.com
dns005.ford.com internet address = 136.8.159.21
dns006.ford.com internet address = 136.8.159.22
extdns001.ford.com internet address = 136.1.7.10
extdns002.ford.com internet address = 136.1.7.11
> ford.com 136.8.159.21
Server: [136.8.159.21]
Address: 136.8.159.21
ford.com MX preference = 10, mail exchanger = mail.mailwatch.com
ford.com MX preference = 10, mail exchanger = mail2.mailwatch.com
ford.com internet address = 136.1.240.21
ford.com nameserver = extdns001.ford.com
ford.com nameserver = dns004.ford.com
ford.com nameserver = dns003.ford.com
ford.com nameserver = extdns002.ford.com
ford.com nameserver = dns005.ford.com
ford.com nameserver = dns006.ford.com
ford.com
primary name server = extdns001.ford.com
responsible mail addr = dnsadmin.ford.com
serial = 2003098827
refresh = 1800 (30 mins)
retry = 900 (15 mins)
expire = 1814400 (21 days)
default TTL = 1800 (30 mins)
ford.com nameserver = extdns001.ford.com
ford.com nameserver = dns004.ford.com
ford.com nameserver = dns003.ford.com
ford.com nameserver = extdns002.ford.com
ford.com nameserver = dns005.ford.com
ford.com nameserver = dns006.ford.com
extdns001.ford.com internet address = 136.1.7.10
dns004.ford.com internet address = 136.1.1.20
dns003.ford.com internet address = 136.2.1.20
extdns002.ford.com internet address = 136.1.7.11
dns005.ford.com internet address = 136.8.159.21
dns006.ford.com internet address = 136.8.159.22
-------------------------------------------------------------------------------------
To which server is mail to nobody@ford.com sent?
mail.mailwatch.com and mail2.mailwatch.com is mail to nobody@ford.com sent.
-------------------------------------------------------------------------------------⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -