45 lines
1.8 KiB
Makefile
45 lines
1.8 KiB
Makefile
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Long: user
|
|
Short: u
|
|
Arg: <user:password>
|
|
Help: Server user and password
|
|
Category: important auth
|
|
Example: -u user:secret $URL
|
|
Added: 4.0
|
|
See-also: netrc config
|
|
Multi: single
|
|
---
|
|
Specify the user name and password to use for server authentication. Overrides
|
|
--netrc and --netrc-optional.
|
|
|
|
If you simply specify the user name, curl prompts for a password.
|
|
|
|
The user name and passwords are split up on the first colon, which makes it
|
|
impossible to use a colon in the user name with this option. The password can,
|
|
still.
|
|
|
|
On systems where it works, curl hides the given option argument from process
|
|
listings. This is not enough to protect credentials from possibly getting seen
|
|
by other users on the same system as they still are visible for a brief moment
|
|
before cleared. Such sensitive data should be retrieved from a file instead or
|
|
similar and never used in clear text in a command line.
|
|
|
|
When using Kerberos V5 with a Windows based server you should include the
|
|
Windows domain name in the user name, in order for the server to successfully
|
|
obtain a Kerberos Ticket. If you do not, then the initial authentication
|
|
handshake may fail.
|
|
|
|
When using NTLM, the user name can be specified simply as the user name,
|
|
without the domain, if there is a single domain and forest in your setup
|
|
for example.
|
|
|
|
To specify the domain name use either Down-Level Logon Name or UPN (User
|
|
Principal Name) formats. For example, EXAMPLE\\user and user@example.com
|
|
respectively.
|
|
|
|
If you use a Windows SSPI-enabled curl binary and perform Kerberos V5,
|
|
Negotiate, NTLM or Digest authentication then you can tell curl to select
|
|
the user name and password from your environment by specifying a single colon
|
|
with this option: "-u :".
|