使用curl命令查看服务器端口开放情况-编程知识

使用curl命令查看服务器端口开放情况

1.ssh端口 22

2.mysql数据库端口 3306

3.web应用端口

（Jellyfin 8082）

（wordpress 8088）

（tomcat 8080）

4.不存在的端口

5.被防火墙阻挡的端口

===

1.ssh端口 22

curl -v 10.10.10.205:22

curl -v 10.10.10.205:22
*   Trying 10.10.10.205:22...
* Connected to 10.10.10.205 (10.10.10.205) port 22
> GET / HTTP/1.1
> Host: 10.10.10.205:22
> User-Agent: curl/8.4.0
> Accept: */*
>
* Received HTTP/0.9 when not allowed
* Closing connection
curl: (1) Received HTTP/0.9 when not allowed

===

2.mysql数据库端口 3306

curl -v 10.10.10.205:3306

curl -v 10.10.10.205:3306
*   Trying 10.10.10.205:3306...
* Connected to 10.10.10.205 (10.10.10.205) port 3306
> GET / HTTP/1.1
> Host: 10.10.10.205:3306
> User-Agent: curl/8.4.0
> Accept: */*
>
* Received HTTP/0.9 when not allowed
* Closing connection
curl: (1) Received HTTP/0.9 when not allowed

3.web应用端口

（Jellyfin 8082）

curl -v 10.10.10.205:8082

curl -v 10.10.10.205:8082
*   Trying 10.10.10.205:8082...
* Connected to 10.10.10.205 (10.10.10.205) port 8082
> GET / HTTP/1.1
> Host: 10.10.10.205:8082
> User-Agent: curl/8.4.0
> Accept: */*
>
< HTTP/1.1 302 Found
< Content-Length: 0
< Date: Tue, 07 May 2024 13:22:55 GMT
< Server: Kestrel
< Location: /web/index.html
<
* Connection #0 to host 10.10.10.205 left intact

（wordpress 8088）

curl -v 10.10.10.205:8088

curl -v 10.10.10.205:8088
*   Trying 10.10.10.205:8088...
* Connected to 10.10.10.205 (10.10.10.205) port 8088
> GET / HTTP/1.1
> Host: 10.10.10.205:8088
> User-Agent: curl/8.4.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Tue, 07 May 2024 13:20:40 GMT
< Server: Apache/2.4.57 (Debian)
< X-Powered-By: PHP/8.2.18
< Link: <http://10.10.10.205:8088/wp-json/>; rel="https://api.w.org/"
< Vary: Accept-Encoding
< Transfer-Encoding: chunked
< Content-Type: text/html; charset=UTF-8
<
<!DOCTYPE html>
。。。
。。。

（tomcat 8080）

curl -v 10.10.10.205:8080

curl -v 10.10.10.205:6666
*   Trying 10.10.10.205:6666...
* connect to 10.10.10.205 port 6666 failed: Connection refused
* Failed to connect to 10.10.10.205 port 6666 after 2051 ms: Couldn't connect to server
* Closing connection
curl: (7) Failed to connect to 10.10.10.205 port 6666 after 2051 ms: Couldn't connect to serverC:\Users>curl -v 10.10.10.205:8080
*   Trying 10.10.10.205:8080...
* Connected to 10.10.10.205 (10.10.10.205) port 8080
> GET / HTTP/1.1
> Host: 10.10.10.205:8080
> User-Agent: curl/8.4.0
> Accept: */*
>
< HTTP/1.1 200
< Content-Type: text/html;charset=UTF-8
< Transfer-Encoding: chunked
< Date: Tue, 07 May 2024 13:19:25 GMT
<<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><title>Apache Tomcat/9.0.30</title>
。。。
。。。

4.不存在的端口

curl -v 10.10.10.205:6666

curl -v 10.10.10.205:6666
*   Trying 10.10.10.205:6666...
* connect to 10.10.10.205 port 6666 failed: Connection refused
* Failed to connect to 10.10.10.205 port 6666 after 2051 ms: Couldn't connect to server
* Closing connection
curl: (7) Failed to connect to 10.10.10.205 port 6666 after 2051 ms: Couldn't connect to server