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| -rw-r--r-- | docs/FAQ | 34 |
1 files changed, 24 insertions, 10 deletions
@@ -1,4 +1,4 @@ -Updated: August 18, 2010 (http://curl.haxx.se/docs/faq.html) +Updated: September 7, 2010 (http://curl.haxx.se/docs/faq.html) _ _ ____ _ ___| | | | _ \| | / __| | | | |_) | | @@ -49,6 +49,7 @@ FAQ 3.16 What certificates do I need when I use SSL? 3.17 How do I list the root dir of an FTP server? 3.18 Can I use curl to send a POST/PUT and not wait for a response? + 3.19 How do I get HTTP from a host using a specific IP address? 4. Running Problems 4.1 Problems connecting to SSL servers. @@ -310,9 +311,9 @@ FAQ as used by numerous applications that include libcurl binaries in their distribution packages (like Adobe Acrobat Reader and Google Earth). - More than 90 known named companies use curl in commercial environments and - products. More than 100 known named open source projects depend on - (lib)curl. + More than a hundred known named companies use curl in commercial + environments and products and more than a hundred known named open source + projects depend on (lib)curl. In a poll on the curl web site mid-2005, more than 50% of the 300+ answers estimated a user base of one million users or more. @@ -637,6 +638,9 @@ FAQ provide this in order to prove that you actually are who you claim to be. If the server doesn't require this, you don't need a client certificate. + A client certificate is always used together with a private key, and the + private key has a pass phrase that protects it. + - Server certificate. The server you communicate with has a server certificate. You can and should verify this certificate to make sure that you are truly talking to the real server and not a server impersonating @@ -644,8 +648,9 @@ FAQ - Certificate Authority certificate ("CA cert"). You often have several CA certs in a CA cert bundle that can be used to verify a server certificate - that was signed by one of the authorities in the bundle. curl comes with a - default CA cert bundle. You can override the default. + that was signed by one of the authorities in the bundle. curl does not + come with a CA cert bundle but most curl installs provide one. You can + also override the default. The server certificate verification process is made by using a Certificate Authority certificate ("CA cert") that was used to sign the server @@ -676,6 +681,17 @@ FAQ But you could easily write your own program using libcurl to do such stunts. + 3.19 How do I get HTTP from a host using a specific IP address? + + For example, you may be trying out a web site installation that isn't yet in + the DNS. Or you have a site using multiple IP addresses for a given host + name and you want to address a specific one out of the set. + + Set a custom Host: header that identifies the server name you want to reach + but use the target IP address in the URL: + + curl --header "Host: www.example.com" http://127.0.0.1/ + 4. Running Problems @@ -824,10 +840,8 @@ FAQ 4.9 Curl can't authenticate to the server that requires NTLM? - This is supported in curl 7.10.6 or later. No earlier curl version knows - of this magic. Later versions require the OpenSSL, GnuTLS or Microsoft - Windows libraries to provide this functionality. Using the NSS library - will not provide NTLM authentication functionality in curl. + NTLM support requires OpenSSL, GnuTLS, NSS or Microsoft Windows libraries at + build-time to provide this functionality. NTLM is a Microsoft proprietary protocol. Proprietary formats are evil. You should not use such ones. |