I've a vps with the my.domain.xyz FQDN. At the meanwhile, a socks5 proxy server runs on VPS and listens on port 1080 which can access the website on my office subnet, say, by starting chrome with the following command:

$ google-chrome --proxy-server="socks5://my.domain.xyz:1080"

Then I can access my workplace intranet, say, the following one:

http://10.10.10.10:2021

This way works but some cumbersome settings are required. I want to access my workplace intranet with a wrapper/mirror website resides on my vps, say, http://my.domain.xyz:21080, which can access the intranet website via the socks5 proxy server mentioned
above. I mean, when I open the URL http://my.domain.xyz:21080 from anywhere outside of the workplace intranet, it will automatically redirected to http://10.10.10.10:2021 via the socks5 proxy server "socks5://my.domain.xyz:1080".

Is there a feasible way to achieve this aim with the help of unix tools/javascript/python?

Regards,
HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 11/4/21 12:13 AM, hongy...@gmail.com wrote:

Is there a feasible way to achieve this aim with the help of unix tools/javascript/python?

Yes, there are ways to do this.

I would suggest spend some time thinking about the security implications
of making a website that's inherently not available to the Internet be available to the Internet via what you're talking about doing.

socat immediately comes to mind.



--
Grant. . . .
unix || die

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Friday, November 5, 2021 at 12:15:22 AM UTC+8, Grant Taylor wrote:

On 11/4/21 12:13 AM, hongy...@gmail.com wrote:

Is there a feasible way to achieve this aim with the help of unix tools/javascript/python?

Yes, there are ways to do this.

I would suggest spend some time thinking about the security implications
of making a website that's inherently not available to the Internet be available to the Internet via what you're talking about doing.

socat immediately comes to mind.

Thank you for your hit the nail on the head hints. Googling with the following keywords gives me much wonderful examples:

socat http server

Say, the following ones:

https://unix.stackexchange.com/questions/448837/create-https-server-with-socat https://ixday.github.io/post/simple_https/ https://stackoverflow.com/questions/29739901/socat-fake-http-server-use-a-file-as-server-response
https://gist.github.com/baleyko/003a089deb4f532552ef674e9ff4cea9

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 11/4/21 11:21 PM, hongy...@gmail.com wrote:

Thank you ...

You're welcome.

#hazFun #beSafe #playNiceWithOthers



--
Grant. . . .
unix || die

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Friday, November 5, 2021 at 1:51:54 PM UTC+8, Grant Taylor wrote:

On 11/4/21 11:21 PM, hongy...@gmail.com wrote:

Thank you ...

You're welcome.

The official socat release does not support socks5 proxy, so I compiled the version here [1] with the following commands:

$ sudo apt build-dep socat
$ sudo apt install yodl
$ autoreconf -vfi
$ ./configure
$ make -j44
$ sudo make install

Then I test the problem discussed here with the following command from my VPS:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

Additional note above the above command:

127.0.0.1:6001 is the socks5 proxy server running on vps which can access the intranet website: 10.8.10.220:2021

Then I try to open http://127.0.0.1:8888 using Firefox running on the vps, but I meet the following error reproted by socat:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001
2021/11/05 15:00:30 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:38 socat[1303141] N accepting connection from AF=2 127.0.0.1:60354 on AF=2 127.0.0.1:8888
2021/11/05 15:00:38 socat[1303141] N forked off child process 1313292 2021/11/05 15:00:38 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:38 socat[1313292] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:38 socat[1313292] N exit(1)
2021/11/05 15:00:38 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:38 socat[1303141] N accepting connection from AF=2 127.0.0.1:60372 on AF=2 127.0.0.1:8888
2021/11/05 15:00:38 socat[1303141] N forked off child process 1313455 2021/11/05 15:00:38 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:38 socat[1313455] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:38 socat[1313455] N exit(1)
2021/11/05 15:00:38 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60486 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314891 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314891] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314891] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60488 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314906 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314906] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314906] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60490 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314907 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314907] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314907] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60492 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314910 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314910] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314910] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60494 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314913 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314913] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314913] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60496 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314914 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314914] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314914] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60498 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314918 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314918] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314918] N exit(1)
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60500 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314919 2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314919] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314919] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60502 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314922 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314922] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314922] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60504 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314923 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314923] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314923] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60506 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314926 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888
2021/11/05 15:00:39 socat[1314926] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314926] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17

[1] https://github.com/runsisi/socat

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Friday, November 5, 2021 at 4:19:14 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 3:19:06 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 1:51:54 PM UTC+8, Grant Taylor wrote:

On 11/4/21 11:21 PM, hongy...@gmail.com wrote:

Thank you ...

You're welcome.

The official socat release does not support socks5 proxy, so I compiled the version here [1] with the following commands:

$ sudo apt build-dep socat
$ sudo apt install yodl
$ autoreconf -vfi
$ ./configure
$ make -j44
$ sudo make install

Then I test the problem discussed here with the following command from my VPS:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

Additional note above the above command:

127.0.0.1:6001 is the socks5 proxy server running on vps which can access the intranet website: 10.8.10.220:2021

Then I try to open http://127.0.0.1:8888 using Firefox running on the vps, but I meet the following error reproted by socat:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

But the following testing with a HTTP proxy running on port 6002 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr PROXY:127.0.0.1:10.8.10.220:2021,proxyport=6002

And the following testing with the socks5 proxy running on port 6001 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socks5port=6001

And the socat version with socks5 support [1] must be used in the above testing.

[1] https://github.com/runsisi/socat

Another notes: It seems the TCP4-LISTEN must be used as follows in this question:

TCP4-LISTEN:2021

I mean, socat must listen on the same port locally as the remote intranet website.

2021/11/05 15:00:30 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:38 socat[1303141] N accepting connection from AF=2 127.0.0.1:60354 on AF=2 127.0.0.1:8888
2021/11/05 15:00:38 socat[1303141] N forked off child process 1313292 2021/11/05 15:00:38 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:38 socat[1313292] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:38 socat[1313292] N exit(1)
2021/11/05 15:00:38 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:38 socat[1303141] N accepting connection from AF=2 127.0.0.1:60372 on AF=2 127.0.0.1:8888
2021/11/05 15:00:38 socat[1303141] N forked off child process 1313455 2021/11/05 15:00:38 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:38 socat[1313455] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:38 socat[1313455] N exit(1)
2021/11/05 15:00:38 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60486 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314891 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314891] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314891] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60488 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314906 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314906] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314906] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60490 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314907 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314907] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314907] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60492 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314910 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314910] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314910] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60494 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314913 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314913] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314913] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60496 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314914 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314914] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314914] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60498 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314918 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314918] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314918] N exit(1)
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60500 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314919 2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314919] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314919] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60502 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314922 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314922] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314922] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60504 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314923 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314923] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314923] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60506 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314926 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314926] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314926] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17

[1] https://github.com/runsisi/socat

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Friday, November 5, 2021 at 3:19:06 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 1:51:54 PM UTC+8, Grant Taylor wrote:

On 11/4/21 11:21 PM, hongy...@gmail.com wrote:

Thank you ...

You're welcome.

The official socat release does not support socks5 proxy, so I compiled the version here [1] with the following commands:

$ sudo apt build-dep socat
$ sudo apt install yodl
$ autoreconf -vfi
$ ./configure
$ make -j44
$ sudo make install

Then I test the problem discussed here with the following command from my VPS:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

Additional note above the above command:

127.0.0.1:6001 is the socks5 proxy server running on vps which can access the intranet website: 10.8.10.220:2021

Then I try to open http://127.0.0.1:8888 using Firefox running on the vps, but I meet the following error reproted by socat:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

But the following testing with a HTTP proxy running on port 6002 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr PROXY:127.0.0.1:10.8.10.220:2021,proxyport=6002

Another notes: It seems the TCP4-LISTEN must be used as follows in this question:

TCP4-LISTEN:2021

I mean, socat must listen on the same port locally as the remote intranet website.

2021/11/05 15:00:30 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:38 socat[1303141] N accepting connection from AF=2 127.0.0.1:60354 on AF=2 127.0.0.1:8888
2021/11/05 15:00:38 socat[1303141] N forked off child process 1313292 2021/11/05 15:00:38 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:38 socat[1313292] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:38 socat[1313292] N exit(1)
2021/11/05 15:00:38 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:38 socat[1303141] N accepting connection from AF=2 127.0.0.1:60372 on AF=2 127.0.0.1:8888
2021/11/05 15:00:38 socat[1303141] N forked off child process 1313455 2021/11/05 15:00:38 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:38 socat[1313455] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:38 socat[1313455] N exit(1)
2021/11/05 15:00:38 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60486 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314891 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314891] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314891] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60488 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314906 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314906] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314906] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60490 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314907 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314907] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314907] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60492 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314910 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314910] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314910] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60494 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314913 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314913] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314913] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60496 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314914 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314914] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314914] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60498 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314918 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314918] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314918] N exit(1)
2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60500 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314919 2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314919] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314919] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60502 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314922 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314922] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314922] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60504 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314923 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314923] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314923] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17 2021/11/05 15:00:39 socat[1303141] N accepting connection from AF=2 127.0.0.1:60506 on AF=2 127.0.0.1:8888
2021/11/05 15:00:39 socat[1303141] N forked off child process 1314926 2021/11/05 15:00:39 socat[1303141] N listening on AF=2 0.0.0.0:8888 2021/11/05 15:00:39 socat[1314926] E parseopts(): option "socksport" not supported with this address type
2021/11/05 15:00:39 socat[1314926] N exit(1)
2021/11/05 15:00:39 socat[1303141] N childdied(): handling signal 17

[1] https://github.com/runsisi/socat

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Friday, November 5, 2021 at 4:29:25 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 4:19:14 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 3:19:06 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 1:51:54 PM UTC+8, Grant Taylor wrote:

On 11/4/21 11:21 PM, hongy...@gmail.com wrote:

Thank you ...

You're welcome.

The official socat release does not support socks5 proxy, so I compiled the version here [1] with the following commands:

$ sudo apt build-dep socat
$ sudo apt install yodl
$ autoreconf -vfi
$ ./configure
$ make -j44
$ sudo make install

Then I test the problem discussed here with the following command from my VPS:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

Additional note above the above command:

127.0.0.1:6001 is the socks5 proxy server running on vps which can access the intranet website: 10.8.10.220:2021

Then I try to open http://127.0.0.1:8888 using Firefox running on the vps, but I meet the following error reproted by socat:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

But the following testing with a HTTP proxy running on port 6002 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr PROXY:127.0.0.1:10.8.10.220:2021,proxyport=6002

And the following testing with the socks5 proxy running on port 6001 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socks5port=6001

And the socat version with socks5 support [1] must be used in the above testing.

But I still failed to use SSL/TLS protocol with socat, say, by the follow command:

$ socat -v -d -d tcp-listen:2021,fork,reuseaddr socks5:127.0.0.1:www.google.com:443,socks5port=18888

Then open the following URL in Firefox can't let me access google:

http://localhost:2021/

But use the above socks5 proxy directly in Firefox works.

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Friday, November 5, 2021 at 6:58:58 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 4:29:25 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 4:19:14 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 3:19:06 PM UTC+8, hongy...@gmail.com wrote:

On Friday, November 5, 2021 at 1:51:54 PM UTC+8, Grant Taylor wrote:

On 11/4/21 11:21 PM, hongy...@gmail.com wrote:

Thank you ...

You're welcome.

The official socat release does not support socks5 proxy, so I compiled the version here [1] with the following commands:

$ sudo apt build-dep socat
$ sudo apt install yodl
$ autoreconf -vfi
$ ./configure
$ make -j44
$ sudo make install

Then I test the problem discussed here with the following command from my VPS:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

Additional note above the above command:

127.0.0.1:6001 is the socks5 proxy server running on vps which can access the intranet website: 10.8.10.220:2021

Then I try to open http://127.0.0.1:8888 using Firefox running on the vps, but I meet the following error reproted by socat:

$ socat -v -d -d TCP4-LISTEN:8888,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socksport=6001

But the following testing with a HTTP proxy running on port 6002 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr PROXY:127.0.0.1:10.8.10.220:2021,proxyport=6002

And the following testing with the socks5 proxy running on port 6001 works as expected:

$ socat -v -d -d TCP4-LISTEN:2021,fork,reuseaddr socks5:127.0.0.1:10.8.10.220:2021,socks5port=6001

And the socat version with socks5 support [1] must be used in the above testing.

But I still failed to use SSL/TLS protocol with socat, say, by the follow command:

$ socat -v -d -d tcp-listen:2021,fork,reuseaddr socks5:127.0.0.1:www.google.com:443,socks5port=18888

Then open the following URL in Firefox can't let me access google:

http://localhost:2021/

I also tried with the following URL:

https://localhost:2021/

But meet the following error:

404. That’s an error.

The requested URL / was not found on this server. That’s all we know.

But use the above socks5 proxy directly in Firefox works.

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)