WSAECONNABORTED An established connection was aborted by the software in your host machine.

Question: Do you have any suggestions on this error? I have all the service packs installed for server 2003. Do I need to send shorter strings? I don’t seem to have any issues with small messages. ChilkatLog: SendString: DllDate: Sep 12 2008 Username: XYZABC Component: .NET 2.0 NumChars: 502583 Charset: ansi NumBytes: 502583 SocketError: WSAECONNABORTED An established connection was aborted […]

ASCII Mode in SFTP? (Secure File Transfer over SSH)

SFTP is not in any way related to FTP. FTP is the “File Transfer Protocol” whereas SFTP is a subsystem of the SSH protocol. SFTP is a protocol for file transfer over SSH. (Not to be confused with “FTPS”, which is the FTP protocol over SSL/TLS.) Most people familiar with FTP know about transfer modes: binary and ASCII. A file […]

SMTPQ max threads?

Question: With the SMTPQ service, do you have some guidelines on the best practice settings for the number of threads required for sending different quantities of email? Answer: The SMTPQ is an SMTP client, and thus it connects to SMTP servers to send email. However, it may be configured to use any number of threads so theoretically each thread may […]

POP3 SSH Tunneling (Port Forwarding)

ASP: POP3 SSH Tunneling (Port Forwarding) SQL Server: POP3 SSH Tunneling (Port Forwarding) C#: POP3 SSH Tunneling (Port Forwarding) C++: POP3 SSH Tunneling (Port Forwarding) MFC: POP3 SSH Tunneling (Port Forwarding) C: POP3 SSH Tunneling (Port Forwarding) Delphi: POP3 SSH Tunneling (Port Forwarding) Visual FoxPro: POP3 SSH Tunneling (Port Forwarding) Java: POP3 SSH Tunneling (Port Forwarding) Perl: POP3 SSH Tunneling […]

SMTP SSH Tunneling (Port Forwarding)

ASP: SMTP SSH Tunneling (Port Forwarding) SQL Server: SMTP SSH Tunneling (Port Forwarding) C#: SMTP SSH Tunneling (Port Forwarding) C++: SMTP SSH Tunneling (Port Forwarding) MFC: SMTP SSH Tunneling (Port Forwarding) C: SMTP SSH Tunneling (Port Forwarding) Delphi: SMTP SSH Tunneling (Port Forwarding) Visual FoxPro: SMTP SSH Tunneling (Port Forwarding) Java: SMTP SSH Tunneling (Port Forwarding) Perl: SMTP SSH Tunneling […]

IMAP SSH Tunneling (Port Forwarding)

ASP: IMAP SSH Tunneling (Port Forwarding) SQL Server: IMAP SSH Tunneling (Port Forwarding) C#: IMAP SSH Tunneling (Port Forwarding) C++: IMAP SSH Tunneling (Port Forwarding) MFC: IMAP SSH Tunneling (Port Forwarding) C: IMAP SSH Tunneling (Port Forwarding) Delphi: IMAP SSH Tunneling (Port Forwarding) Visual FoxPro: IMAP SSH Tunneling (Port Forwarding) Java: IMAP SSH Tunneling (Port Forwarding) Perl: IMAP SSH Tunneling […]

POP3 Headers and Attachment Info

The POP3 protocol is not very feature rich. To download an email “header” the POP3 client must issue a “TOP” command. The following text is from RFC 1939 and describes the response to the TOP command: … After the initial +OK, the POP3 server sends the headers of the message, the blank line separating the headers from the body, and […]

Release Notes for 3-November-2008 Update

New versions of most Chilkat components were released on 3-November-2008. This blog post lists the major changes and new features. For those components with no apparent changes, minor new versions are released to take advantage of any underlying improvements in the internal (Chilkat) libs that form the base of all Chilkat products. New Products, Features, and Fixes Chilkat SSH / […]

Diffie-Hellman Random Number Generation

Question: (Regarding the Chilkat Diffie-Hellman Component/Library) If it is possible, we´d like to know what algorithm is used to generate random numbers because one of our clients is very strict with security and they demand us this information. Answer: The most difficult problem in implementing a good random number generator is in generating a good seed value for a starting […]