WinSCP is an open source SFTP client and FTP client for Windows. Its main function is the secure file transfer between a local and a remote computer. Beyond this, WinSCP offers basic file manager functionality. It uses Secure Shell (SSH) and supports, in addition to Secure FTP, also legacy SCP protocol.
WinSCP is also available as a plugin to two file managers, FAR and Altap Salamander.
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PuTTY is a terminal emulator application which can act as a client for the SSH, Telnet, rlogin, and raw TCP computing protocols. The name “PuTTY” has no definitive meaning, though ‘tty’ is the traditional name for a terminal in the Unix tradition, usually held to be short for teletype.
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Did you know that using $_SERVER['REMOTE_ADDR'] to get visitor’s IP address sometimes is not accurate? If your site’s visitor is connected to the Internet via Proxy Server then $_SERVER['REMOTE_ADDR'] in PHP just returns the the IP address of the proxy server and not the IP address of the client’s machine. $_SERVER variable might have a few more useful things available to determine the exact IP address of the client’s machine in PHP, they are HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR.
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