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Which protocol is used by curl?
cURL is a command-line tool for getting or sending data including files using URL syntax. Since cURL uses libcurl, it supports every protocol libcurl supports. cURL supports HTTPS and performs SSL certificate verification by default when a secure protocol is specified such as HTTPS.
Does curl support UDP?
No it doesn’t. For HTTP, libcurl only supports TCP or Unix domain socket. It could possibly be something to add in a future. (libcurl supports UDP transfers for a few other protocols.)
What is difference between HTTP and TCP?
HTTP is a Hypertext Transfer Protocol, whereas TCP full form is Transmission Control Protocol. HTTP is utilized to access websites, while TCP is a session establishment protocol between client and server. HTTP uses port 80 and TCP uses no port. HTTP is faster in comparison to TCP, which is slower.
Does curl use HTTP?
cURL, which stands for client URL, is a command line tool that developers use to transfer data to and from a server. cURL supports several different protocols, including HTTP and HTTPS, and runs on almost every platform.
What port is curl on?
To test an FTP server, use curl to connect via ftp protocol or to port 21.
What kind of HTTP protocol does curl use?
curl has many different supported protocols. However, curl will use HTTP protocol by default if no protocol is provided. For example, if you run the following example, it would download the homepage of example.com. You can call a specific protocol by prefacing the URL with the protocol name. The example above uses the HTTP protocol.
Can a curl server connect to a non TLS server?
With curl, if you explicitly specify the TLS version of the protocol (the one that has a name that ends with an ‘S’ character) in the URL, curl will try to connect with TLS from start, while if you specify the non-TLS version in the URL you can usually upgrade the connection to TLS-based with the –ssl option. The support table looks like this:
What is curl and how do I use it?
curl Protocols DICT FILE FTP FTPS GOPHER HTTP HTTPS IMAP IMAPS LDAP POP3 RTMP RTSP SCP SFTP
Where can I find a list of curl options?
You can find a list of possible options on the curl documentation site. Options will direct curl to perform certain actions on the URL listed. The URL gives curl the path to the server it should perform the action on. You can list one URL, several URLs, or parts of a URL, depending on the nature of your option.