B<openssl> B<s_time>
[B<-help>]
-[B<-connect host:port>]
-[B<-www page>]
-[B<-cert filename>]
-[B<-key filename>]
-[B<-CApath directory>]
-[B<-cafile filename>]
+[B<-connect> I<host>:I<port>]
+[B<-www> I<page>]
+[B<-cert> I<filename>]
+[B<-key> I<filename>]
+[B<-CApath> I<directory>]
+[B<-cafile> I<filename>]
[B<-no-CAfile>]
[B<-no-CApath>]
[B<-reuse>]
[B<-new>]
-[B<-verify depth>]
-[B<-nameopt option>]
-[B<-time seconds>]
+[B<-verify> I<depth>]
+[B<-nameopt> I<option>]
+[B<-time> I<seconds>]
[B<-ssl3>]
+[B<-tls1>]
+[B<-tls1_1>]
+[B<-tls1_2>]
+[B<-tls1_3>]
[B<-bugs>]
-[B<-cipher cipherlist>]
-[B<-ciphersuites val>]
+[B<-cipher> I<cipherlist>]
+[B<-ciphersuites> I<val>]
+
+=for comment ifdef ssl3 tls1 tls1_1 tls1_2 tls1_3
=head1 DESCRIPTION
-The B<s_time> command implements a generic SSL/TLS client which connects to a
-remote host using SSL/TLS. It can request a page from the server and includes
-the time to transfer the payload data in its timing measurements. It measures
-the number of connections within a given timeframe, the amount of data
-transferred (if any), and calculates the average time spent for one connection.
+This command implements a generic SSL/TLS client which
+connects to a remote host using SSL/TLS. It can request a page from the server
+and includes the time to transfer the payload data in its timing measurements.
+It measures the number of connections within a given timeframe, the amount of
+data transferred (if any), and calculates the average time spent for one
+connection.
=head1 OPTIONS
Print out a usage message.
-=item B<-connect host:port>
+=item B<-connect> I<host>:I<port>
This specifies the host and optional port to connect to.
-=item B<-www page>
+=item B<-www> I<page>
This specifies the page to GET from the server. A value of '/' gets the
-index.htm[l] page. If this parameter is not specified, then B<s_time> will only
-perform the handshake to establish SSL connections but not transfer any
-payload data.
+F<index.html> page. If this parameter is not specified, then this command
+will only perform the handshake to establish SSL connections but not transfer
+any payload data.
-=item B<-cert certname>
+=item B<-cert> I<certname>
The certificate to use, if one is requested by the server. The default is
not to use a certificate. The file is in PEM format.
-=item B<-key keyfile>
+=item B<-key> I<keyfile>
The private key to use. If not specified then the certificate file will
be used. The file is in PEM format.
-=item B<-verify depth>
+=item B<-verify> I<depth>
The verify depth to use. This specifies the maximum length of the
server certificate chain and turns on server certificate verification.
with a certificate chain can be seen. As a side effect the connection
will never fail due to a server certificate verify failure.
-=item B<-nameopt option>
+=item B<-nameopt> I<option>
Option which determines how the subject or issuer names are displayed. The
-B<option> argument can be a single option or multiple options separated by
+I<option> argument can be a single option or multiple options separated by
commas. Alternatively the B<-nameopt> switch may be used more than once to
-set multiple options. See the L<x509(1)> manual page for details.
+set multiple options. See the L<openssl-x509(1)> manual page for details.
-=item B<-CApath directory>
+=item B<-CApath> I<directory>
The directory to use for server certificate verification. This directory
-must be in "hash format", see B<verify> for more information. These are
-also used when building the client certificate chain.
+must be in "hash format", see L<openssl-verify(1)> for more information.
+These are also used when building the client certificate chain.
-=item B<-CAfile file>
+=item B<-CAfile> I<file>
A file containing trusted certificates to use during server authentication
and to use when attempting to build the client certificate chain.
that session caching is working. If neither B<-new> nor B<-reuse> are
specified, they are both on by default and executed in sequence.
-=item B<-ssl3>
-
-This option disables the use of SSL version 3. By default
-the initial handshake uses a method which should be compatible with all
-servers and permit them to use SSL v3 or TLS as appropriate.
-
-The timing program is not as rich in options to turn protocols on and off as
-the L<s_client(1)> program and may not connect to all servers.
-Unfortunately there are a lot of ancient and broken servers in use which
-cannot handle this technique and will fail to connect. Some servers only
-work if TLS is turned off with the B<-ssl3> option.
+=item B<-ssl3>, B<-tls1>, B<-tls1_1>, B<-tls1_2>, B<-tls1_3>
-Note that this option may not be available, depending on how
+These options enable specific SSL or TLS protocol versions for the handshake
+initiated by this command.
+By default, it negotiates the highest mutually supported protocol
+version.
+Note that not all protocols and flags may be available, depending on how
OpenSSL was built.
=item B<-bugs>
There are several known bugs in SSL and TLS implementations. Adding this
option enables various workarounds.
-=item B<-cipher cipherlist>
+=item B<-cipher> I<cipherlist>
This allows the TLSv1.2 and below cipher list sent by the client to be modified.
This list will be combined with any TLSv1.3 ciphersuites that have been
configured. Although the server determines which cipher suite is used it should
take the first supported cipher in the list sent by the client. See
-L<ciphers(1)> for more information.
+L<openssl-ciphers(1)> for more information.
-=item B<-ciphersuites val>
+=item B<-ciphersuites> I<val>
This allows the TLSv1.3 ciphersuites sent by the client to be modified. This
list will be combined with any TLSv1.2 and below ciphersuites that have been
configured. Although the server determines which cipher suite is used it should
take the first supported cipher in the list sent by the client. See
-L<ciphers(1)> for more information. The format for this list is a simple
-colon (":") separated list of TLSv1.3 ciphersuite names.
+L<openssl-ciphers(1)> for more information. The format for this list is a
+simple colon (":") separated list of TLSv1.3 ciphersuite names.
-=item B<-time length>
+=item B<-time> I<length>
-Specifies how long (in seconds) B<s_time> should establish connections and
-optionally transfer payload data from a server. Server and client performance
-and the link speed determine how many connections B<s_time> can establish.
+Specifies how long (in seconds) this command should establish connections
+and optionally transfer payload data from a server. Server and client
+performance and the link speed determine how many connections it
+can establish.
=back
=head1 NOTES
-B<s_time> can be used to measure the performance of an SSL connection.
+This command can be used to measure the performance of an SSL connection.
To connect to an SSL HTTP server and get the default page the command
openssl s_time -connect servername:443 -www / -CApath yourdir -CAfile yourfile.pem -cipher commoncipher [-ssl3]
-would typically be used (https uses port 443). 'commoncipher' is a cipher to
-which both client and server can agree, see the L<ciphers(1)> command
+would typically be used (https uses port 443). I<commoncipher> is a cipher to
+which both client and server can agree, see the L<openssl-ciphers(1)> command
for details.
If the handshake fails then there are several possible causes, if it is
is that a web client complains it has no certificates or gives an empty
list to choose from. This is normally because the server is not sending
the clients certificate authority in its "acceptable CA list" when it
-requests a certificate. By using L<s_client(1)> the CA list can be
+requests a certificate. By using L<openssl-s_client(1)> the CA list can be
viewed and checked. However some servers only request client authentication
after a specific URL is requested. To obtain the list in this case it
-is necessary to use the B<-prexit> option of L<s_client(1)> and
+is necessary to use the B<-prexit> option of L<openssl-s_client(1)> and
send an HTTP request for an appropriate page.
If a certificate is specified on the command line using the B<-cert>
=head1 BUGS
Because this program does not have all the options of the
-L<s_client(1)> program to turn protocols on and off, you may not be
-able to measure the performance of all protocols with all servers.
+L<openssl-s_client(1)> program to turn protocols on and off, you may not
+be able to measure the performance of all protocols with all servers.
The B<-verify> option should really exit if the server verification
fails.
projects / openssl.git / blobdiff