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nslookup www.mfa.gov.cn
Server:		127.0.0.53
Address:	127.0.0.53#53
 
Non-authoritative answer:
www.mfa.gov.cn	canonical name = www.mfa.gov.cn.wswebpic.com.
Name:	www.mfa.gov.cn.wswebpic.com
Address: 61.110.222.63
Name:	www.mfa.gov.cn.wswebpic.com
Address: 138.113.148.176

El dominio apunta a 2 servidores / 2 ips para distribuir la carga, si falla uno el tráfico se redirige al otro

Para saber a qué ip estamos accediendo

curl -v www.mfa.gov.cn
*   Trying 61.110.222.63:80...
* Connected to www.mfa.gov.cn (61.110.222.63) port 80 (#0)
> GET / HTTP/1.1
> Host: www.mfa.gov.cn
> User-Agent: curl/7.81.0
> Accept: */*
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 302 Moved Temporarily
< Date: Sun, 23 Feb 2025 20:27:41 GMT
< Content-Type: application/octet-stream
< Content-Length: 0
< Connection: keep-alive
< Server: Cdn Cache Server V2.0
< Location: https://www.mfa.gov.cn/
< X-Via: 1.0 VM-MXP-01JTu31:2 (Cdn Cache Server V2.0)
< x-ws-request-id: 67bb84bd_VM-MXP-01LHX142_17300-17169
< Set-Cookie: HMF_CI=1160b3bae6b803999182d83bac320dfb8cb231e8155c1aa9bfbe1d7304731d34558954a8f28e18fe6e189bc986641345a92e7eb4df3d2480fc5ee5a938e9f902dc; Expires=Tue, 25-Mar-25 20:27:41 GMT; Path=/
< 
* Connection #0 to host www.mfa.gov.cn left intact

-sV: Información de servicio, versión
-O: Detección de sistema operativo
-Pn: No realizamos descubrimiento de host mediante ping porque ya sabemos que está activo, si no ponemos ésta opción y el host no responde a pings, nmap no continuará con el escaneo

sudo nmap -sV -O -Pn www.mfa.gov.cn > nmap_cn.txt
cat nmap_cn.txt | grep open
80/tcp    open     http        nginx
81/tcp    open     http        nginx
82/tcp    open     http        nginx
83/tcp    open     http        nginx
84/tcp    open     http        nginx
85/tcp    open     http        nginx
88/tcp    open     http        nginx
89/tcp    open     http        nginx
90/tcp    open     http        nginx
111/tcp   open     http        nginx
443/tcp   open     ssl/http    nginx
444/tcp   open     ssl/http    nginx
800/tcp   open     http        nginx
808/tcp   open     http        nginx
843/tcp   open     http        nginx
888/tcp   open     http        nginx
1000/tcp  open     http        nginx
1024/tcp  open     http        nginx
1058/tcp  open     http        nginx
1066/tcp  open     http        nginx
1080/tcp  open     http        nginx
1085/tcp  open     http        nginx
1086/tcp  open     http        nginx
1090/tcp  open     http        nginx
1111/tcp  open     http        nginx
1433/tcp  open     http        nginx
1443/tcp  open     ssl/http    nginx
1723/tcp  open     pptp?
1801/tcp  open     http        nginx
1863/tcp  open     http        nginx
1935/tcp  open     http        nginx
2000/tcp  open     ssl/http    nginx
2001/tcp  open     http        nginx
2002/tcp  open     http        nginx
2003/tcp  open     http        nginx
2004/tcp  open     http        nginx
2005/tcp  open     http        nginx
2006/tcp  open     http        nginx
2007/tcp  open     http        nginx
2008/tcp  open     http        nginx
2009/tcp  open     http        nginx
2020/tcp  open     http        nginx
2021/tcp  open     http        nginx
2030/tcp  open     http        nginx
2033/tcp  open     http        nginx
2099/tcp  open     http        nginx
2323/tcp  open     3d-nfsd?
3000/tcp  open     http        nginx
3001/tcp  open     http        nginx
3011/tcp  open     http        nginx
3013/tcp  open     http        nginx
3031/tcp  open     http        nginx
3052/tcp  open     http        nginx
4002/tcp  open     http        nginx
4003/tcp  open     http        nginx
4004/tcp  open     http        nginx
4111/tcp  open     http        nginx
4343/tcp  open     http        nginx
4443/tcp  open     ssl/http    nginx
4445/tcp  open     http        nginx
4899/tcp  open     http        nginx
5000/tcp  open     http        nginx
5001/tcp  open     http        nginx
5002/tcp  open     http        nginx
5003/tcp  open     http        nginx
5004/tcp  open     http        nginx
5009/tcp  open     http        nginx
5030/tcp  open     http        nginx
5050/tcp  open     http        nginx
5080/tcp  open     http        nginx
5100/tcp  open     http        nginx
5101/tcp  open     http        nginx
5190/tcp  open     http        nginx
5222/tcp  open     http        nginx
5280/tcp  open     http        nginx
5555/tcp  open     http        nginx
5566/tcp  open     http        nginx
5666/tcp  open     http        nginx
5678/tcp  open     http        nginx
5850/tcp  open     http        nginx
5999/tcp  open     http        nginx
6000/tcp  open     http        nginx
6001/tcp  open     http        nginx
6003/tcp  open     http        nginx
6005/tcp  open     http        nginx
6101/tcp  open     http        nginx
6106/tcp  open     http        nginx
6502/tcp  open     http        nginx
6510/tcp  open     http        nginx
6699/tcp  open     http        nginx
7000/tcp  open     ssl/http    nginx
7001/tcp  open     http        nginx
7002/tcp  open     http        nginx
7004/tcp  open     http        nginx
7007/tcp  open     http        nginx
7070/tcp  open     http        nginx
7100/tcp  open     http        nginx
7200/tcp  open     http        nginx
7443/tcp  open     ssl/http    nginx
7777/tcp  open     http        nginx
7778/tcp  open     http        nginx
7800/tcp  open     http        nginx
7920/tcp  open     http        nginx
7999/tcp  open     http        nginx
8000/tcp  open     http        nginx
8001/tcp  open     http        nginx
8002/tcp  open     http        nginx
8007/tcp  open     http        nginx
8008/tcp  open     http        nginx
8009/tcp  open     http        nginx
8010/tcp  open     http        nginx
8011/tcp  open     http        nginx
8022/tcp  open     http        nginx
8031/tcp  open     http        nginx
8042/tcp  open     http        nginx
8080/tcp  open     http        nginx
8081/tcp  open     http        nginx
8082/tcp  open     http        nginx
8083/tcp  open     http        nginx
8084/tcp  open     http        nginx
8085/tcp  open     http        nginx
8086/tcp  open     http        nginx
8087/tcp  open     http        nginx
8088/tcp  open     http        nginx
8089/tcp  open     http        nginx
8090/tcp  open     http        nginx
8093/tcp  open     http        nginx
8099/tcp  open     http        nginx
8100/tcp  open     http        nginx
8180/tcp  open     http        nginx
8181/tcp  open     http        nginx
8200/tcp  open     http        nginx
8222/tcp  open     http        nginx
8300/tcp  open     http        nginx
8383/tcp  open     http        nginx
8400/tcp  open     http        nginx
8443/tcp  open     ssl/http    nginx
8500/tcp  open     http        nginx
8600/tcp  open     http        nginx
8701/tcp  open     http        nginx
8800/tcp  open     http        nginx
8888/tcp  open     http        nginx
8899/tcp  open     http        nginx
9000/tcp  open     http        nginx
9001/tcp  open     http        nginx
9002/tcp  open     http        nginx
9003/tcp  open     http        nginx
9009/tcp  open     http        nginx
9010/tcp  open     http        nginx
9011/tcp  open     http        nginx
9040/tcp  open     http        nginx
9050/tcp  open     http        nginx
9071/tcp  open     http        nginx
9080/tcp  open     http        nginx
9081/tcp  open     http        nginx
9090/tcp  open     http        nginx
9091/tcp  open     http        nginx
9099/tcp  open     http        nginx
9100/tcp  open     jetdirect?
9101/tcp  open     jetdirect?
9102/tcp  open     jetdirect?
9103/tcp  open     jetdirect?
9110/tcp  open     http        nginx
9111/tcp  open     http        nginx
9200/tcp  open     http        nginx
9207/tcp  open     http        nginx
9220/tcp  open     http        nginx
9290/tcp  open     http        nginx
9485/tcp  open     http        nginx
9500/tcp  open     http        nginx
9502/tcp  open     http        nginx
9503/tcp  open     http        nginx
9535/tcp  open     http        nginx
9575/tcp  open     http        nginx
9618/tcp  open     http        nginx
9666/tcp  open     http        nginx
9876/tcp  open     http        nginx
9877/tcp  open     http        nginx
9878/tcp  open     http        nginx
9900/tcp  open     http        nginx
9917/tcp  open     http        nginx
9929/tcp  open     http        nginx
9943/tcp  open     http        nginx
9944/tcp  open     http        nginx
9998/tcp  open     http        nginx
9999/tcp  open     http        nginx
10000/tcp open     http        nginx
10001/tcp open     http        nginx
10002/tcp open     http        nginx
10003/tcp open     http        nginx
10004/tcp open     http        nginx
10012/tcp open     http        nginx
10082/tcp open     http        nginx
10215/tcp open     http        nginx
10566/tcp open     http        nginx
10621/tcp open     http        nginx
12345/tcp open     http        nginx
14000/tcp open     http        nginx
14441/tcp open     http        nginx
14442/tcp open     http        nginx
15000/tcp open     http        nginx
15002/tcp open     http        nginx
15660/tcp open     http        nginx
15742/tcp open     http        nginx
16000/tcp open     http        nginx
16113/tcp open     http        nginx
17877/tcp open     http        nginx
18040/tcp open     http        nginx
18101/tcp open     http        nginx
20000/tcp open     http        nginx
20005/tcp open     http        nginx
20031/tcp open     http        nginx
31038/tcp open     http        nginx
50000/tcp open     http        nginx
50003/tcp open     http        nginx
55555/tcp open     http        nginx
58080/tcp open     http        nginx
60443/tcp open     ssl/http    nginx
65000/tcp open     http        nginx
65129/tcp open     http        nginx

nmap_cn.txt.gz

gunzip -c nmap_cn.txt.gz | grep filtered
25/tcp    filtered smtp
139/tcp   filtered netbios-ssn

Gran cantidad aplicaciones y servicios web asociados a nginx, 25 (SMTP) y 139 (NetBIOS) pueden estar bloqueados por un firewall al estar marcados como filtered

-sV: Información de servicio, versión
-O: Detección de sistema operativo
-Pn: No realizamos descubrimiento de host mediante ping porque ya sabemos que está activo, si no ponemos ésta opción y el host no responde a pings, nmap no continuará con el escaneo
sed -z 's/\n/,/g': Elimina los saltos de línea y pone los puertos en una línea separados por ,
–script “vuln and not intrusive”: elegimos los scripts nse que más convengan para escanear, opciones nse

sudo nmap -sV -Pn -O -p $(cat puertos_mfa_cn.txt | sed -z 's/\n/,/g') --script "vuln and not intrusive" www.mfa.gov.cn -oA nmap_vuln_cn