Added "4.15 FTPS doesn't work" and updated a few other sections slightly

Updated: June 26, 2007 (http://curl.haxx.se/docs/faq.html)

Updated: July 30, 2007 (http://curl.haxx.se/docs/faq.html)

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  4.12 Why do I get "certificate verify failed" ?

  4.13 Why is curl -R on Windows one hour off?

  4.14 Redirects work in browser but not with curl!

  4.15 FTPS doesn't work

 5. libcurl Issues

  5.1 Is libcurl thread-safe?

  Some facts to use as input to the math:

  curl packages are downloaded from the curl.haxx.se and mirrors almost one

  curl packages are downloaded from the curl.haxx.se and mirrors over a

  million times per year. curl is installed by default with most Linux

  distributions. curl is installed by default with Mac OS X. curl and libcurl

  as used by numerous applications that include libcurl binaries in their

  distribution packages (like Adobe Acrobat Reader and Google Earth).

  More than 60 known named companies use curl in commercial environments and

  More than 70 known named companies use curl in commercial environments and

  products. More than 100 known named open source projects depend on

  (lib)curl.

  2.4 Does curl support Socks (RFC 1928) ?

  Yes, SOCKS5 is supported.

  Yes, SOCKS 4 and 5 are supported.

3. Usage problems

  manually figure out what the page is set to do, or you write a script that

  parses the results and fetches the new URL.

  4.15 FTPS doesn't work

  curl supports FTPS (sometimes known as FTP-SSL) both implicit and explicit

  mode.

  When a URL is used that starts with FTPS://, curl assumes implicit SSL on

  the control connection and will therefore immediately connect and try to

  speak SSL. FTPS:// connections default to port 990.

  To use explicit FTPS, you use a FTP:// URL and the --ftp-ssl option (or one

  of its related flavours). This is the most common method, and the one

  mandated by RFC4217. This kind of connection then of course uses the

  standard FTP port 21 by default.

5. libcurl Issues

  In the cURL project we call this module PHP/CURL to differentiate it from

  curl the command line tool and libcurl the library. The PHP team however

  does not refer to it like this (for unknown reasons). They call it plain

  CURL (often using all caps) which causes much confusion to users which in

  turn gives us a higher question load.

  CURL (often using all caps) or sometimes ext/curl, but both cause much

  confusion to users which in turn gives us a higher question load.

  7.2 Who write PHP/CURL?

  PHP/CURL is a module that comes with the regular PHP package. It depends and

  uses libcurl, so you need to have libcurl installed properly first before

  PHP/CURL can be used. PHP/CURL is written by Sterling Hughes.

  PHP/CURL can be used. PHP/CURL was initially written by Sterling Hughes.

  7.3 Can I perform multiple requests using the same handle?