-connect host:port
This specifies the host and optional port to connect to.
-www 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 s_time will only perform the handshake to establish SSL connections but not transfer any payload data.
-cert 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.
-key keyfile
The private key to use. If not specified then the certificate file will be used. The file is in PEM format.
-verify depth
The verify depth to use. This specifies the maximum length of the server certificate chain and turns on server certificate verification. Currently the verify operation continues after errors so all the problems with a certificate chain can be seen. As a side effect the connection will never fail due to a server certificate verify failure.
-CApath directory
The directory to use for server certificate verification. This directory must be in "hash format", see verify for more information. These are also used when building the client certificate chain.
-CAfile file
A file containing trusted certificates to use during server authentication and to use when attempting to build the client certificate chain.
-new
performs the timing test using a new session ID for each connection. If neither -new nor -reuse are specified, they are both on by default and executed in sequence.
-reuse
performs the timing test using the same session ID; this can be used as a test that session caching is working. If neither -new nor -reuse are specified, they are both on by default and executed in sequence.
-nbio
turns on non-blocking I/O.
-ssl2, -ssl3
these options disable the use of certain SSL or TLS protocols. By default the initial handshake uses a method which should be compatible with all servers and permit them to use SSL v3, SSL v2 or TLS as appropriate. The timing program is not as rich in options to turn protocols on and off as the
openssl_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
-ssl3 option; others will only support SSL v2 and may need the -ssl2 option.
-bugs
there are several known bug in SSL and TLS implementations. Adding this option enables various workarounds.
-cipher cipherlist
this allows the cipher list sent by the client to be modified. Although the server determines which cipher suite is used it should take the first supported cipher in the list sent by the client. See the openssl_ciphers(1) command for more information.
-time length
specifies how long (in seconds) 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 s_time can establish.