今天进度 : 鸟哥私房菜 - 第十九章、主机名称控制者: DNS 服务器
今天使用 whois 指令尝试查询 it home 收集详尽的 DNS 主机资讯
发现居然归在 PCHOME 底下注册 XD,而且是从 1993 年就购买,到现在有 22 年了,真厉害!
但,过期时间怎麽怪怪的,2021-04
,不就代表在几个月就过期?
看网上的前辈说,最好要三个月前就续订,否则会被抢走
test@test:~$ whois ithelp.ithome.com.tw
Domain Name: ithome.com.tw
Domain Status: clientTransferProhibited
Registrant:
iThome Weekly
DomainAdministrator [email protected]
+886.0227000898
12F No.105, Sec.2 Tun-Hwa South Road. Taipei,Taiwan, R.O.C Taipei,106,TW
Taipei, TW
TW
Administrative Contact:
DomainAdministrator [email protected]
+886.0227000898
Technical Contact:
DomainAdministrator [email protected]
+886.0227000898
Record expires on 2021-04-12 (YYYY-MM-DD)
Record created on 1999-12-31 (YYYY-MM-DD)
Domain servers in listed order:
ns1.ithome.com.tw 220.130.119.129
ns2.ithome.com.tw 210.59.230.252
Registration Service Provider: PCHOME
Registration Service URL: http://myname.pchome.com.tw
使用 openssl
查询凭证资料
发现凭证时间在 12 月也要过期了...
test@test:~$ echo | openssl s_client -showcerts -servername ithome.com.tw -connect ithome.com.tw:443 2>/dev/null | openssl x509 -inform pem -noout -text
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
67:88:95:f4:42:7e:92:c7:c5:5d:6e:46
Signature Algorithm: sha256WithRSAEncryption
Issuer: C = BE, O = GlobalSign nv-sa, CN = GlobalSign Organization Validation CA - SHA256 - G2
Validity
Not Before: Nov 1 09:32:34 2018 GMT
Not After : Dec 19 09:14:42 2020 GMT
Subject: C = TW, ST = Taipei, L = Taipei, OU = IT Dept., O = \E9\9B\BB\E9\80\B1\E6\96\87\E5\8C\96\E4\BA\8B\E6\A5\AD\E8\82\A1\E4\BB\BD\E6\9C\89\E9\99\90\E5\85\AC\E5\8F\B8, CN = *.ithome.com.tw
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public-Key: (2048 bit)
Modulus:
00:b3:46:49:87:fe:9f:c1:9e:66:63:fd:05:3d:e5:
38:41
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature, Key Encipherment
Authority Information Access:
CA Issuers - URI:http://secure.globalsign.com/cacert/gsorganizationvalsha2g2r1.crt
OCSP - URI:http://ocsp2.globalsign.com/gsorganizationvalsha2g2
X509v3 Certificate Policies:
Policy: 1.3.6.1.4.1.4146.1.20
CPS: https://www.globalsign.com/repository/
Policy: 2.23.140.1.2.2
X509v3 Basic Constraints:
CA:FALSE
X509v3 CRL Distribution Points:
Full Name:
URI:http://crl.globalsign.com/gs/gsorganizationvalsha2g2.crl
X509v3 Subject Alternative Name:
DNS:*.ithome.com.tw, DNS:owa.ithome.com.tw, DNS:mail.ithome.com.tw, DNS:autodiscover.ithome.com.tw, DNS:www.ithome.com.tw, DNS:ithome.com.tw
X509v3 Extended Key Usage:
TLS Web Server Authentication, TLS Web Client Authentication
X509v3 Subject Key Identifier:
X509v3 Authority Key Identifier:
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID :
Timestamp : Nov 1 09:32:36.635 2018 GMT
Extensions: none
Signature : ecdsa-with-SHA256
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID :
Timestamp : Nov 1 09:32:36.630 2018 GMT
Extensions: none
Signature : ecdsa-with-SHA256
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID :
Timestamp : Nov 1 09:32:37.000 2018 GMT
Extensions: none
Signature : ecdsa-with-SHA256
Signature Algorithm: sha256WithRSAEncryption
查询it邦主机的资讯
test@test:~$ nslookup ithome.com.tw
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
Name: ithome.com.tw
Address: 220.130.119.130
host 查询 IP 地址
test@test:~$ host ithome.com.tw
ithome.com.tw has address 220.130.119.130
dig 查询 详细的主机资讯
test@test:~$ dig ithome.com.tw
; <<>> DiG 9.16.1-Ubuntu <<>> ithome.com.tw
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9020
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;ithome.com.tw. IN A
;; ANSWER SECTION:
ithome.com.tw. 0 IN A 220.130.119.130
;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Fri Oct 16 00:46:06 UTC 2020
;; MSG SIZE rcvd: 58
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