Accessing the MySQL database of the intranet host through libssh2
lazarus / 38-Networking and Web Programming

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myisjwj · 2023-07-17 02:26

I have connected to the remote external host using Libssh2, and now I
want to map the port of the internal host to 127.0.0.1. The code is as
follows:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i    
localPort := 33069;    tunnelSock := fpSocket(AF_INET, SOCK_STREAM,
0);    FillChar(tunnelAddr, SizeOf(tunnelAddr), 0);   
tunnelAddr.sin_family := AF_INET;    tunnelAddr.sin_port :=
htons(localPort);    tunnelAddr.sin_addr.S_addr := INADDR_ANY;    rc
:= fpBind(tunnelSock, @tunnelAddr, SizeOf(tunnelAddr));    rc :=
fpListen(tunnelSock, 1);   
channel1:=libssh2_channel_direct_tcpip_ex(session1, '192.168.0.77',
3306, '127.0.0.1', localPort);
But now MySQL cannot connect to the intranet host. The error is: MySQL
waiting for initial communication packet.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i     rc :=
fpBind(tunnelSock, @tunnelAddr, SizeOf(tunnelAddr));    rc :=
fpListen(tunnelSock, 1);   
channel1:=libssh2_channel_direct_tcpip_ex(session1, '192.168.0.77',
3306, '127.0.0.1', localPort);
All return to normal.