Test the news server connectivity over http proxy with curl.

From: Hongyi Zhao via curl-users <curl-users_at_cool.haxx.se>
Date: Thu, 18 Mar 2021 15:17:05 +0800

Hi,

On Ubuntu 20.04, I have a local HTTP proxy listening on port 8080
which works as shown below:

$ curl -Ix http://127.0.0.1:8080 https://www.google.com
HTTP/1.1 200 Connection established.
Proxy-Connection: close
Proxy-Agent: DeleGate/9.9.13

HTTP/2 200
content-type: text/html; charset=ISO-8859-1
p3p: CP="This is not a P3P policy! See g.co/p3phelp for more info."
date: Thu, 18 Mar 2021 07:15:10 GMT
server: gws
x-xss-protection: 0
x-frame-options: SAMEORIGIN
expires: Thu, 18 Mar 2021 07:15:10 GMT
cache-control: private
set-cookie: 1P_JAR=2021-03-18-07; expires=Sat, 17-Apr-2021 07:15:10
GMT; path=/; domain=.google.com; Secure
set-cookie: NID=211=BaboCRvGis4P61Ed-pZIkTga_XGnCHFDUAcb7eadKV4cXT1YANbjr3IIgqgWxcSsuJRotxjom4phjW-U7I92u01iXzsTWGSXpqz9wU1xjj2Sj-Wn0XjJ6u4STBFBRS-Ck9uyc3N74FzMnYG_FXm5mwMk8MiKPELp7GwjhBHPgck;
expires=Fri, 17-Sep-2021 07:15:10 GMT; path=/; domain=.google.com;
HttpOnly
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443";
ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443";
ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000;
v="46,43"

Then I try to test the news server connectivity over this HTTP proxy
with curl but failed:

$ curl -vIx socks5://127.0.0.1:18888 telnet://news.rusnet.ru:119
* Trying 127.0.0.1:18888...
* TCP_NODELAY set
* SOCKS5 communication to news.rusnet.ru:119
* SOCKS5 connect to IPv4 195.208.113.96:119 (locally resolved)
* SOCKS5 request granted.
* Connected to 127.0.0.1 (127.0.0.1) port 18888 (#0)
^C
werner_at_X10DAi:~$ curl -vIx http://127.0.0.1:8080 telnet://news.rusnet.ru:119
* Trying 127.0.0.1:8080...
* TCP_NODELAY set
* Connected to 127.0.0.1 (127.0.0.1) port 8080 (#0)
* allocate connect buffer!
* Establish HTTP proxy tunnel to news.rusnet.ru:119
> CONNECT news.rusnet.ru:119 HTTP/1.1
> Host: news.rusnet.ru:119
> User-Agent: curl/7.68.0
> Proxy-Connection: Keep-Alive
>
< HTTP/1.1 403 Forbidden
< Date: Thu, 18 Mar 2021 07:11:54 GMT
< Server: DeleGate/9.9.13
< DeleGate-Ver: 9.9.13 (delay=0)
< MIME-Version: 1.0
< Content-Type: text/html
< Content-Length: 1776
< Proxy-Connection: keep-alive, timeout=60, maxreq=60
<
* Received HTTP code 403 from proxy after CONNECT
* CONNECT phase completed!
* Closing connection 0
curl: (56) Received HTTP code 403 from proxy after CONNECT

Any hints for this problem?

Regards

-- 
Assoc. Prof. Hongyi Zhao <hongyi.zhao_at_gmail.com>
Theory and Simulation of Materials
Hebei Polytechnic University of Science and Technology engineering
NO. 552 North Gangtie Road, Xingtai, China
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Received on 2021-03-18