885 lines
37 KiB
Groff
Executable File
885 lines
37 KiB
Groff
Executable File
.\" Automatically generated by Pod::Man 2.25 (Pod::Simple 3.16)
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.\" ========================================================================
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.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
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.\" entries marked with X<> in POD. Of course, you'll have to process the
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.rm #[ #] #H #V #F C
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.\" ========================================================================
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.\"
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.IX Title "OPENSSL-S_SERVER 1"
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.TH OPENSSL-S_SERVER 1 "2020-03-02" "3.0.0-dev" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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openssl\-s_server \- SSL/TLS server program
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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\&\fBopenssl\fR \fBs_server\fR
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[\fB\-help\fR]
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[\fB\-port\fR \fI+int\fR]
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[\fB\-accept\fR \fIval\fR]
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[\fB\-unix\fR \fIval\fR]
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[\fB\-4\fR]
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[\fB\-6\fR]
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[\fB\-unlink\fR]
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[\fB\-context\fR \fIval\fR]
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[\fB\-verify\fR \fIint\fR]
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[\fB\-Verify\fR \fIint\fR]
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[\fB\-cert\fR \fIinfile\fR]
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[\fB\-naccept\fR \fI+int\fR]
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[\fB\-serverinfo\fR \fIval\fR]
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[\fB\-certform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]
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[\fB\-key\fR \fIinfile\fR]
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[\fB\-keyform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]
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[\fB\-pass\fR \fIval\fR]
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[\fB\-dcert\fR \fIinfile\fR]
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[\fB\-dcertform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]
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[\fB\-dkey\fR \fIinfile\fR]
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[\fB\-dkeyform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]
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[\fB\-dpass\fR \fIval\fR]
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[\fB\-nbio_test\fR]
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[\fB\-crlf\fR]
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[\fB\-debug\fR]
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[\fB\-msg\fR]
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[\fB\-msgfile\fR \fIoutfile\fR]
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[\fB\-state\fR]
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[\fB\-nocert\fR]
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[\fB\-quiet\fR]
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[\fB\-no_resume_ephemeral\fR]
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[\fB\-www\fR]
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[\fB\-WWW\fR]
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[\fB\-http_server_binmode\fR]
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[\fB\-servername\fR]
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[\fB\-servername_fatal\fR]
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[\fB\-cert2\fR \fIinfile\fR]
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[\fB\-key2\fR \fIinfile\fR]
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[\fB\-tlsextdebug\fR]
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[\fB\-HTTP\fR]
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[\fB\-id_prefix\fR \fIval\fR]
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[\fB\-keymatexport\fR \fIval\fR]
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[\fB\-keymatexportlen\fR \fI+int\fR]
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[\fB\-CRLform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]
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[\fB\-CRL\fR \fIinfile\fR]
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[\fB\-crl_download\fR]
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[\fB\-cert_chain\fR \fIinfile\fR]
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[\fB\-dcert_chain\fR \fIinfile\fR]
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[\fB\-chainCApath\fR \fIdir\fR]
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[\fB\-verifyCApath\fR \fIdir\fR]
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[\fB\-chainCAstore\fR \fIuri\fR]
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[\fB\-verifyCAstore\fR \fIuri\fR]
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[\fB\-no_cache\fR]
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[\fB\-ext_cache\fR]
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[\fB\-verify_return_error\fR]
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[\fB\-verify_quiet\fR]
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[\fB\-build_chain\fR]
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[\fB\-chainCAfile\fR \fIinfile\fR]
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[\fB\-verifyCAfile\fR \fIinfile\fR]
|
|
[\fB\-ign_eof\fR]
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[\fB\-no_ign_eof\fR]
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|
[\fB\-status\fR]
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[\fB\-status_verbose\fR]
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[\fB\-status_timeout\fR \fIint\fR]
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[\fB\-status_url\fR \fIval\fR]
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[\fB\-status_file\fR \fIinfile\fR]
|
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[\fB\-trace\fR]
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|
[\fB\-security_debug\fR]
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[\fB\-security_debug_verbose\fR]
|
|
[\fB\-brief\fR]
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|
[\fB\-rev\fR]
|
|
[\fB\-async\fR]
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|
[\fB\-ssl_config\fR \fIval\fR]
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|
[\fB\-max_send_frag\fR \fI+int\fR]
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[\fB\-split_send_frag\fR \fI+int\fR]
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|
[\fB\-max_pipelines\fR \fI+int\fR]
|
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[\fB\-read_buf\fR \fI+int\fR]
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[\fB\-bugs\fR]
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[\fB\-no_comp\fR]
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[\fB\-comp\fR]
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[\fB\-no_ticket\fR]
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[\fB\-serverpref\fR]
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[\fB\-legacy_renegotiation\fR]
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[\fB\-no_renegotiation\fR]
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[\fB\-legacy_server_connect\fR]
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[\fB\-no_resumption_on_reneg\fR]
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[\fB\-no_legacy_server_connect\fR]
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[\fB\-allow_no_dhe_kex\fR]
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[\fB\-prioritize_chacha\fR]
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[\fB\-strict\fR]
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[\fB\-sigalgs\fR \fIval\fR]
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[\fB\-client_sigalgs\fR \fIval\fR]
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[\fB\-groups\fR \fIval\fR]
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[\fB\-curves\fR \fIval\fR]
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[\fB\-named_curve\fR \fIval\fR]
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[\fB\-cipher\fR \fIval\fR]
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[\fB\-ciphersuites\fR \fIval\fR]
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[\fB\-dhparam\fR \fIinfile\fR]
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[\fB\-record_padding\fR \fIval\fR]
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[\fB\-debug_broken_protocol\fR]
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|
[\fB\-nbio\fR]
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[\fB\-psk_identity\fR \fIval\fR]
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[\fB\-psk_hint\fR \fIval\fR]
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[\fB\-psk\fR \fIval\fR]
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[\fB\-psk_session\fR \fIfile\fR]
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[\fB\-srpvfile\fR \fIinfile\fR]
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|
[\fB\-srpuserseed\fR \fIval\fR]
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|
[\fB\-timeout\fR]
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|
[\fB\-mtu\fR \fI+int\fR]
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[\fB\-listen\fR]
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[\fB\-sctp\fR]
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[\fB\-sctp_label_bug\fR]
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[\fB\-no_dhe\fR]
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[\fB\-nextprotoneg\fR \fIval\fR]
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[\fB\-use_srtp\fR \fIval\fR]
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[\fB\-alpn\fR \fIval\fR]
|
|
[\fB\-keylogfile\fR \fIoutfile\fR]
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|
[\fB\-recv_max_early_data\fR \fIint\fR]
|
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[\fB\-max_early_data\fR \fIint\fR]
|
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[\fB\-early_data\fR]
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[\fB\-stateless\fR]
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[\fB\-anti_replay\fR]
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[\fB\-no_anti_replay\fR]
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[\fB\-num_tickets\fR]
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[\fB\-nameopt\fR \fIoption\fR]
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[\fB\-no_ssl3\fR]
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[\fB\-no_tls1\fR]
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[\fB\-no_tls1_1\fR]
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[\fB\-no_tls1_2\fR]
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[\fB\-no_tls1_3\fR]
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|
[\fB\-ssl3\fR]
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[\fB\-tls1\fR]
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|
[\fB\-tls1_1\fR]
|
|
[\fB\-tls1_2\fR]
|
|
[\fB\-tls1_3\fR]
|
|
[\fB\-dtls\fR]
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[\fB\-dtls1\fR]
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[\fB\-dtls1_2\fR]
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[\fB\-allow_proxy_certs\fR]
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[\fB\-attime\fR \fItimestamp\fR]
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[\fB\-no_check_time\fR]
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[\fB\-check_ss_sig\fR]
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|
[\fB\-crl_check\fR]
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[\fB\-crl_check_all\fR]
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|
[\fB\-explicit_policy\fR]
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|
[\fB\-extended_crl\fR]
|
|
[\fB\-ignore_critical\fR]
|
|
[\fB\-inhibit_any\fR]
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|
[\fB\-inhibit_map\fR]
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|
[\fB\-partial_chain\fR]
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[\fB\-policy\fR \fIarg\fR]
|
|
[\fB\-policy_check\fR]
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|
[\fB\-policy_print\fR]
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|
[\fB\-purpose\fR \fIpurpose\fR]
|
|
[\fB\-suiteB_128\fR]
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|
[\fB\-suiteB_128_only\fR]
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|
[\fB\-suiteB_192\fR]
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|
[\fB\-trusted_first\fR]
|
|
[\fB\-no_alt_chains\fR]
|
|
[\fB\-use_deltas\fR]
|
|
[\fB\-auth_level\fR \fInum\fR]
|
|
[\fB\-verify_depth\fR \fInum\fR]
|
|
[\fB\-verify_email\fR \fIemail\fR]
|
|
[\fB\-verify_hostname\fR \fIhostname\fR]
|
|
[\fB\-verify_ip\fR \fIip\fR]
|
|
[\fB\-verify_name\fR \fIname\fR]
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|
[\fB\-x509_strict\fR]
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|
[\fB\-issuer_checks\fR]
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|
.PP
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|
[\fB\-bugs\fR]
|
|
[\fB\-no_comp\fR]
|
|
[\fB\-comp\fR]
|
|
[\fB\-no_ticket\fR]
|
|
[\fB\-serverpref\fR]
|
|
[\fB\-legacy_renegotiation\fR]
|
|
[\fB\-no_renegotiation\fR]
|
|
[\fB\-no_resumption_on_reneg\fR]
|
|
[\fB\-legacy_server_connect\fR]
|
|
[\fB\-no_legacy_server_connect\fR]
|
|
[\fB\-allow_no_dhe_kex\fR]
|
|
[\fB\-prioritize_chacha\fR]
|
|
[\fB\-strict\fR]
|
|
[\fB\-sigalgs\fR \fIalgs\fR]
|
|
[\fB\-client_sigalgs\fR \fIalgs\fR]
|
|
[\fB\-groups\fR \fIgroups\fR]
|
|
[\fB\-curves\fR \fIcurves\fR]
|
|
[\fB\-named_curve\fR \fIcurve\fR]
|
|
[\fB\-cipher\fR \fIciphers\fR]
|
|
[\fB\-ciphersuites\fR \fI1.3ciphers\fR]
|
|
[\fB\-min_protocol\fR \fIminprot\fR]
|
|
[\fB\-max_protocol\fR \fImaxprot\fR]
|
|
[\fB\-record_padding\fR \fIpadding\fR]
|
|
[\fB\-debug_broken_protocol\fR]
|
|
[\fB\-no_middlebox\fR]
|
|
[\fB\-xkey\fR] \fIinfile\fR
|
|
[\fB\-xcert\fR \fIfile\fR]
|
|
[\fB\-xchain\fR] \fIfile\fR
|
|
[\fB\-xchain_build\fR] \fIfile\fR
|
|
[\fB\-xcertform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]>
|
|
[\fB\-xkeyform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR]>
|
|
[\fB\-CAfile\fR \fIfile\fR]
|
|
[\fB\-no\-CAfile\fR]
|
|
[\fB\-CApath\fR \fIdir\fR]
|
|
[\fB\-no\-CApath\fR]
|
|
[\fB\-CAstore\fR \fIuri\fR]
|
|
[\fB\-no\-CAstore\fR]
|
|
[\fB\-rand\fR \fIfiles\fR]
|
|
[\fB\-writerand\fR \fIfile\fR]
|
|
[\fB\-engine\fR \fIid\fR]
|
|
.SH "DESCRIPTION"
|
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.IX Header "DESCRIPTION"
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|
This command implements a generic \s-1SSL/TLS\s0 server which
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listens for connections on a given port using \s-1SSL/TLS\s0.
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.SH "OPTIONS"
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|
.IX Header "OPTIONS"
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|
In addition to the options below, this command also supports
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the common and server only options documented
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|
\&\*(L"Supported Command Line Commands\*(R" in \fISSL_CONF_cmd\fR\|(3)
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.IP "\fB\-help\fR" 4
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|
.IX Item "-help"
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|
Print out a usage message.
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|
.IP "\fB\-port\fR \fI+int\fR" 4
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|
.IX Item "-port +int"
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|
The \s-1TCP\s0 port to listen on for connections. If not specified 4433 is used.
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.IP "\fB\-accept\fR \fIval\fR" 4
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.IX Item "-accept val"
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|
The optional \s-1TCP\s0 host and port to listen on for connections. If not specified, *:4433 is used.
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.IP "\fB\-unix\fR \fIval\fR" 4
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.IX Item "-unix val"
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|
Unix domain socket to accept on.
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.IP "\fB\-4\fR" 4
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.IX Item "-4"
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|
Use IPv4 only.
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.IP "\fB\-6\fR" 4
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.IX Item "-6"
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|
Use IPv6 only.
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.IP "\fB\-unlink\fR" 4
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.IX Item "-unlink"
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For \-unix, unlink any existing socket first.
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.IP "\fB\-context\fR \fIval\fR" 4
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.IX Item "-context val"
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Sets the \s-1SSL\s0 context id. It can be given any string value. If this option
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is not present a default value will be used.
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.IP "\fB\-verify\fR \fIint\fR, \fB\-Verify\fR \fIint\fR" 4
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.IX Item "-verify int, -Verify int"
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The verify depth to use. This specifies the maximum length of the
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client certificate chain and makes the server request a certificate from
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the client. With the \fB\-verify\fR option a certificate is requested but the
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client does not have to send one, with the \fB\-Verify\fR option the client
|
|
must supply a certificate or an error occurs.
|
|
.Sp
|
|
If the cipher suite cannot request a client certificate (for example an
|
|
anonymous cipher suite or \s-1PSK\s0) this option has no effect.
|
|
.IP "\fB\-cert\fR \fIinfile\fR" 4
|
|
.IX Item "-cert infile"
|
|
The certificate to use, most servers cipher suites require the use of a
|
|
certificate and some require a certificate with a certain public key type:
|
|
for example the \s-1DSS\s0 cipher suites require a certificate containing a \s-1DSS\s0
|
|
(\s-1DSA\s0) key. If not specified then the filename \fIserver.pem\fR will be used.
|
|
.IP "\fB\-cert_chain\fR" 4
|
|
.IX Item "-cert_chain"
|
|
A file containing trusted certificates to use when attempting to build the
|
|
client/server certificate chain related to the certificate specified via the
|
|
\&\fB\-cert\fR option.
|
|
.IP "\fB\-build_chain\fR" 4
|
|
.IX Item "-build_chain"
|
|
Specify whether the application should build the certificate chain to be
|
|
provided to the client.
|
|
.IP "\fB\-naccept\fR \fI+int\fR" 4
|
|
.IX Item "-naccept +int"
|
|
The server will exit after receiving the specified number of connections,
|
|
default unlimited.
|
|
.IP "\fB\-serverinfo\fR \fIval\fR" 4
|
|
.IX Item "-serverinfo val"
|
|
A file containing one or more blocks of \s-1PEM\s0 data. Each \s-1PEM\s0 block
|
|
must encode a \s-1TLS\s0 ServerHello extension (2 bytes type, 2 bytes length,
|
|
followed by \*(L"length\*(R" bytes of extension data). If the client sends
|
|
an empty \s-1TLS\s0 ClientHello extension matching the type, the corresponding
|
|
ServerHello extension will be returned.
|
|
.IP "\fB\-certform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR, \fB\-CRLForm\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR" 4
|
|
.IX Item "-certform DER|PEM, -CRLForm DER|PEM"
|
|
The certificate and \s-1CRL\s0 format; the default is \s-1PEM\s0.
|
|
See \*(L"Format Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.IP "\fB\-key\fR \fIinfile\fR" 4
|
|
.IX Item "-key infile"
|
|
The private key to use. If not specified then the certificate file will
|
|
be used.
|
|
.IP "\fB\-keyform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR" 4
|
|
.IX Item "-keyform DER|PEM"
|
|
The key format; the default is \fB\s-1PEM\s0\fR.
|
|
See \*(L"Format Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.IP "\fB\-pass\fR \fIval\fR" 4
|
|
.IX Item "-pass val"
|
|
The private key password source.
|
|
For more information about the format of \fIval\fR,
|
|
see \*(L"Pass Phrase Options\*(R" in \fIopenssl\fR\|(1).
|
|
.IP "\fB\-dcert\fR \fIinfile\fR, \fB\-dkey\fR \fIinfile\fR" 4
|
|
.IX Item "-dcert infile, -dkey infile"
|
|
Specify an additional certificate and private key, these behave in the
|
|
same manner as the \fB\-cert\fR and \fB\-key\fR options except there is no default
|
|
if they are not specified (no additional certificate and key is used). As
|
|
noted above some cipher suites require a certificate containing a key of
|
|
a certain type. Some cipher suites need a certificate carrying an \s-1RSA\s0 key
|
|
and some a \s-1DSS\s0 (\s-1DSA\s0) key. By using \s-1RSA\s0 and \s-1DSS\s0 certificates and keys
|
|
a server can support clients which only support \s-1RSA\s0 or \s-1DSS\s0 cipher suites
|
|
by using an appropriate certificate.
|
|
.IP "\fB\-dcert_chain\fR" 4
|
|
.IX Item "-dcert_chain"
|
|
A file containing trusted certificates to use when attempting to build the
|
|
server certificate chain when a certificate specified via the \fB\-dcert\fR option
|
|
is in use.
|
|
.IP "\fB\-dcertform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR, \fB\-dkeyform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR" 4
|
|
.IX Item "-dcertform DER|PEM, -dkeyform DER|PEM"
|
|
The format of the certificate and private key; the default is \fB\s-1PEM\s0\fR
|
|
see \*(L"Format Options\*(R" in \fIopenssl\fR\|(1).
|
|
.IP "\fB\-dpass\fR \fIval\fR" 4
|
|
.IX Item "-dpass val"
|
|
The passphrase for the additional private key.
|
|
For more information about the format of \fIval\fR,
|
|
see \*(L"Pass Phrase Options\*(R" in \fIopenssl\fR\|(1).
|
|
.IP "\fB\-nbio_test\fR" 4
|
|
.IX Item "-nbio_test"
|
|
Tests non blocking I/O.
|
|
.IP "\fB\-crlf\fR" 4
|
|
.IX Item "-crlf"
|
|
This option translated a line feed from the terminal into \s-1CR+LF\s0.
|
|
.IP "\fB\-debug\fR" 4
|
|
.IX Item "-debug"
|
|
Print extensive debugging information including a hex dump of all traffic.
|
|
.IP "\fB\-msg\fR" 4
|
|
.IX Item "-msg"
|
|
Show all protocol messages with hex dump.
|
|
.IP "\fB\-msgfile\fR \fIoutfile\fR" 4
|
|
.IX Item "-msgfile outfile"
|
|
File to send output of \fB\-msg\fR or \fB\-trace\fR to, default standard output.
|
|
.IP "\fB\-state\fR" 4
|
|
.IX Item "-state"
|
|
Prints the \s-1SSL\s0 session states.
|
|
.IP "\fB\-chainCApath\fR \fIdir\fR" 4
|
|
.IX Item "-chainCApath dir"
|
|
The directory to use for building the chain provided to the client. This
|
|
directory must be in \*(L"hash format\*(R", see \fIopenssl\-verify\fR\|(1) for more
|
|
information.
|
|
.IP "\fB\-chainCAfile\fR \fIfile\fR" 4
|
|
.IX Item "-chainCAfile file"
|
|
A file containing trusted certificates to use when attempting to build the
|
|
server certificate chain.
|
|
.IP "\fB\-chainCAstore\fR \fIuri\fR" 4
|
|
.IX Item "-chainCAstore uri"
|
|
The \s-1URI\s0 to a store to use for building the chain provided to the client.
|
|
The \s-1URI\s0 may indicate a single certificate, as well as a collection of
|
|
them.
|
|
With URIs in the \f(CW\*(C`file:\*(C'\fR scheme, this acts as \fB\-chainCAfile\fR or
|
|
\&\fB\-chainCApath\fR, depending on if the \s-1URI\s0 indicates a directory or a
|
|
single file.
|
|
See \fIossl_store\-file\fR\|(7) for more information on the \f(CW\*(C`file:\*(C'\fR scheme.
|
|
.IP "\fB\-nocert\fR" 4
|
|
.IX Item "-nocert"
|
|
If this option is set then no certificate is used. This restricts the
|
|
cipher suites available to the anonymous ones (currently just anonymous
|
|
\&\s-1DH\s0).
|
|
.IP "\fB\-quiet\fR" 4
|
|
.IX Item "-quiet"
|
|
Inhibit printing of session and certificate information.
|
|
.IP "\fB\-tlsextdebug\fR" 4
|
|
.IX Item "-tlsextdebug"
|
|
Print a hex dump of any \s-1TLS\s0 extensions received from the server.
|
|
.IP "\fB\-www\fR" 4
|
|
.IX Item "-www"
|
|
Sends a status message back to the client when it connects. This includes
|
|
information about the ciphers used and various session parameters.
|
|
The output is in \s-1HTML\s0 format so this option can be used with a web browser.
|
|
The special \s-1URL\s0 \f(CW\*(C`/renegcert\*(C'\fR turns on client cert validation, and \f(CW\*(C`/reneg\*(C'\fR
|
|
tells the server to request renegotiation.
|
|
The \fB\-early_data\fR option cannot be used with this option.
|
|
.IP "\fB\-WWW\fR, \fB\-HTTP\fR" 4
|
|
.IX Item "-WWW, -HTTP"
|
|
Emulates a simple web server. Pages will be resolved relative to the
|
|
current directory, for example if the \s-1URL\s0 \f(CW\*(C`https://myhost/page.html\*(C'\fR is
|
|
requested the file \fI./page.html\fR will be sent.
|
|
If the \fB\-HTTP\fR flag is used, the files are sent directly, and should contain
|
|
any \s-1HTTP\s0 response headers (including status response line).
|
|
If the \fB\-WWW\fR option is used,
|
|
the response headers are generated by the server, and the file extension is
|
|
examined to determine the \fBContent-Type\fR header.
|
|
Extensions of \f(CW\*(C`html\*(C'\fR, \f(CW\*(C`htm\*(C'\fR, and \f(CW\*(C`php\*(C'\fR are \f(CW\*(C`text/html\*(C'\fR and all others are
|
|
\&\f(CW\*(C`text/plain\*(C'\fR.
|
|
In addition, the special \s-1URL\s0 \f(CW\*(C`/stats\*(C'\fR will return status
|
|
information like the \fB\-www\fR option.
|
|
Neither of these options can be used in conjunction with \fB\-early_data\fR.
|
|
.IP "\fB\-http_server_binmode\fR" 4
|
|
.IX Item "-http_server_binmode"
|
|
When acting as web-server (using option \fB\-WWW\fR or \fB\-HTTP\fR) open files requested
|
|
by the client in binary mode.
|
|
.IP "\fB\-id_prefix\fR \fIval\fR" 4
|
|
.IX Item "-id_prefix val"
|
|
Generate \s-1SSL/TLS\s0 session IDs prefixed by \fIval\fR. This is mostly useful
|
|
for testing any \s-1SSL/TLS\s0 code (eg. proxies) that wish to deal with multiple
|
|
servers, when each of which might be generating a unique range of session
|
|
IDs (eg. with a certain prefix).
|
|
.IP "\fB\-verify_return_error\fR" 4
|
|
.IX Item "-verify_return_error"
|
|
Verification errors normally just print a message but allow the
|
|
connection to continue, for debugging purposes.
|
|
If this option is used, then verification errors close the connection.
|
|
.IP "\fB\-status\fR" 4
|
|
.IX Item "-status"
|
|
Enables certificate status request support (aka \s-1OCSP\s0 stapling).
|
|
.IP "\fB\-status_verbose\fR" 4
|
|
.IX Item "-status_verbose"
|
|
Enables certificate status request support (aka \s-1OCSP\s0 stapling) and gives
|
|
a verbose printout of the \s-1OCSP\s0 response.
|
|
.IP "\fB\-status_timeout\fR \fIint\fR" 4
|
|
.IX Item "-status_timeout int"
|
|
Sets the timeout for \s-1OCSP\s0 response to \fIint\fR seconds.
|
|
.IP "\fB\-status_url\fR \fIval\fR" 4
|
|
.IX Item "-status_url val"
|
|
Sets a fallback responder \s-1URL\s0 to use if no responder \s-1URL\s0 is present in the
|
|
server certificate. Without this option an error is returned if the server
|
|
certificate does not contain a responder address.
|
|
.IP "\fB\-status_file\fR \fIinfile\fR" 4
|
|
.IX Item "-status_file infile"
|
|
Overrides any \s-1OCSP\s0 responder URLs from the certificate and always provides the
|
|
\&\s-1OCSP\s0 Response stored in the file. The file must be in \s-1DER\s0 format.
|
|
.IP "\fB\-trace\fR" 4
|
|
.IX Item "-trace"
|
|
Show verbose trace output of protocol messages. OpenSSL needs to be compiled
|
|
with \fBenable-ssl-trace\fR for this option to work.
|
|
.IP "\fB\-brief\fR" 4
|
|
.IX Item "-brief"
|
|
Provide a brief summary of connection parameters instead of the normal verbose
|
|
output.
|
|
.IP "\fB\-rev\fR" 4
|
|
.IX Item "-rev"
|
|
Simple test server which just reverses the text received from the client
|
|
and sends it back to the server. Also sets \fB\-brief\fR. Cannot be used in
|
|
conjunction with \fB\-early_data\fR.
|
|
.IP "\fB\-async\fR" 4
|
|
.IX Item "-async"
|
|
Switch on asynchronous mode. Cryptographic operations will be performed
|
|
asynchronously. This will only have an effect if an asynchronous capable engine
|
|
is also used via the \fB\-engine\fR option. For test purposes the dummy async engine
|
|
(dasync) can be used (if available).
|
|
.IP "\fB\-max_send_frag\fR \fI+int\fR" 4
|
|
.IX Item "-max_send_frag +int"
|
|
The maximum size of data fragment to send.
|
|
See \fISSL_CTX_set_max_send_fragment\fR\|(3) for further information.
|
|
.IP "\fB\-split_send_frag\fR \fI+int\fR" 4
|
|
.IX Item "-split_send_frag +int"
|
|
The size used to split data for encrypt pipelines. If more data is written in
|
|
one go than this value then it will be split into multiple pipelines, up to the
|
|
maximum number of pipelines defined by max_pipelines. This only has an effect if
|
|
a suitable cipher suite has been negotiated, an engine that supports pipelining
|
|
has been loaded, and max_pipelines is greater than 1. See
|
|
\&\fISSL_CTX_set_split_send_fragment\fR\|(3) for further information.
|
|
.IP "\fB\-max_pipelines\fR \fI+int\fR" 4
|
|
.IX Item "-max_pipelines +int"
|
|
The maximum number of encrypt/decrypt pipelines to be used. This will only have
|
|
an effect if an engine has been loaded that supports pipelining (e.g. the dasync
|
|
engine) and a suitable cipher suite has been negotiated. The default value is 1.
|
|
See \fISSL_CTX_set_max_pipelines\fR\|(3) for further information.
|
|
.IP "\fB\-read_buf\fR \fI+int\fR" 4
|
|
.IX Item "-read_buf +int"
|
|
The default read buffer size to be used for connections. This will only have an
|
|
effect if the buffer size is larger than the size that would otherwise be used
|
|
and pipelining is in use (see \fISSL_CTX_set_default_read_buffer_len\fR\|(3) for
|
|
further information).
|
|
.IP "\fB\-bugs\fR" 4
|
|
.IX Item "-bugs"
|
|
There are several known bugs in \s-1SSL\s0 and \s-1TLS\s0 implementations. Adding this
|
|
option enables various workarounds.
|
|
.IP "\fB\-no_comp\fR" 4
|
|
.IX Item "-no_comp"
|
|
Disable negotiation of \s-1TLS\s0 compression.
|
|
\&\s-1TLS\s0 compression is not recommended and is off by default as of
|
|
OpenSSL 1.1.0.
|
|
.IP "\fB\-comp\fR" 4
|
|
.IX Item "-comp"
|
|
Enable negotiation of \s-1TLS\s0 compression.
|
|
This option was introduced in OpenSSL 1.1.0.
|
|
\&\s-1TLS\s0 compression is not recommended and is off by default as of
|
|
OpenSSL 1.1.0.
|
|
.IP "\fB\-no_ticket\fR" 4
|
|
.IX Item "-no_ticket"
|
|
Disable RFC4507bis session ticket support. This option has no effect if TLSv1.3
|
|
is negotiated. See \fB\-num_tickets\fR.
|
|
.IP "\fB\-num_tickets\fR" 4
|
|
.IX Item "-num_tickets"
|
|
Control the number of tickets that will be sent to the client after a full
|
|
handshake in TLSv1.3. The default number of tickets is 2. This option does not
|
|
affect the number of tickets sent after a resumption handshake.
|
|
.IP "\fB\-serverpref\fR" 4
|
|
.IX Item "-serverpref"
|
|
Use the server's cipher preferences, rather than the client's preferences.
|
|
.IP "\fB\-prioritize_chacha\fR" 4
|
|
.IX Item "-prioritize_chacha"
|
|
Prioritize ChaCha ciphers when preferred by clients. Requires \fB\-serverpref\fR.
|
|
.IP "\fB\-no_resumption_on_reneg\fR" 4
|
|
.IX Item "-no_resumption_on_reneg"
|
|
Set the \fB\s-1SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION\s0\fR option.
|
|
.IP "\fB\-client_sigalgs\fR \fIval\fR" 4
|
|
.IX Item "-client_sigalgs val"
|
|
Signature algorithms to support for client certificate authentication
|
|
(colon-separated list).
|
|
.IP "\fB\-named_curve\fR \fIval\fR" 4
|
|
.IX Item "-named_curve val"
|
|
Specifies the elliptic curve to use. \s-1NOTE:\s0 this is single curve, not a list.
|
|
For a list of all possible curves, use:
|
|
.Sp
|
|
.Vb 1
|
|
\& $ openssl ecparam \-list_curves
|
|
.Ve
|
|
.IP "\fB\-cipher\fR \fIval\fR" 4
|
|
.IX Item "-cipher val"
|
|
This allows the list of TLSv1.2 and below ciphersuites used by the server to be
|
|
modified. This list is combined with any TLSv1.3 ciphersuites that have been
|
|
configured. When the client sends a list of supported ciphers the first client
|
|
cipher also included in the server list is used. Because the client specifies
|
|
the preference order, the order of the server cipherlist is irrelevant. See
|
|
\&\fIopenssl\-ciphers\fR\|(1) for more information.
|
|
.IP "\fB\-ciphersuites\fR \fIval\fR" 4
|
|
.IX Item "-ciphersuites val"
|
|
This allows the list of TLSv1.3 ciphersuites used by the server to be modified.
|
|
This list is combined with any TLSv1.2 and below ciphersuites that have been
|
|
configured. When the client sends a list of supported ciphers the first client
|
|
cipher also included in the server list is used. Because the client specifies
|
|
the preference order, the order of the server cipherlist is irrelevant. See
|
|
\&\fIopenssl\-ciphers\fR\|(1) command for more information. The format for this list is
|
|
a simple colon (\*(L":\*(R") separated list of TLSv1.3 ciphersuite names.
|
|
.IP "\fB\-dhparam\fR \fIinfile\fR" 4
|
|
.IX Item "-dhparam infile"
|
|
The \s-1DH\s0 parameter file to use. The ephemeral \s-1DH\s0 cipher suites generate keys
|
|
using a set of \s-1DH\s0 parameters. If not specified then an attempt is made to
|
|
load the parameters from the server certificate file.
|
|
If this fails then a static set of parameters hard coded into this command
|
|
will be used.
|
|
.IP "\fB\-nbio\fR" 4
|
|
.IX Item "-nbio"
|
|
Turns on non blocking I/O.
|
|
.IP "\fB\-psk_identity\fR \fIval\fR" 4
|
|
.IX Item "-psk_identity val"
|
|
Expect the client to send \s-1PSK\s0 identity \fIval\fR when using a \s-1PSK\s0
|
|
cipher suite, and warn if they do not. By default, the expected \s-1PSK\s0
|
|
identity is the string \*(L"Client_identity\*(R".
|
|
.IP "\fB\-psk_hint\fR \fIval\fR" 4
|
|
.IX Item "-psk_hint val"
|
|
Use the \s-1PSK\s0 identity hint \fIval\fR when using a \s-1PSK\s0 cipher suite.
|
|
.IP "\fB\-psk\fR \fIval\fR" 4
|
|
.IX Item "-psk val"
|
|
Use the \s-1PSK\s0 key \fIval\fR when using a \s-1PSK\s0 cipher suite. The key is
|
|
given as a hexadecimal number without leading 0x, for example \-psk
|
|
1a2b3c4d.
|
|
This option must be provided in order to use a \s-1PSK\s0 cipher.
|
|
.IP "\fB\-psk_session\fR \fIfile\fR" 4
|
|
.IX Item "-psk_session file"
|
|
Use the pem encoded \s-1SSL_SESSION\s0 data stored in \fIfile\fR as the basis of a \s-1PSK\s0.
|
|
Note that this will only work if TLSv1.3 is negotiated.
|
|
.IP "\fB\-listen\fR" 4
|
|
.IX Item "-listen"
|
|
This option can only be used in conjunction with one of the \s-1DTLS\s0 options above.
|
|
With this option, this command will listen on a \s-1UDP\s0 port for incoming
|
|
connections.
|
|
Any ClientHellos that arrive will be checked to see if they have a cookie in
|
|
them or not.
|
|
Any without a cookie will be responded to with a HelloVerifyRequest.
|
|
If a ClientHello with a cookie is received then this command will
|
|
connect to that peer and complete the handshake.
|
|
.IP "\fB\-sctp\fR" 4
|
|
.IX Item "-sctp"
|
|
Use \s-1SCTP\s0 for the transport protocol instead of \s-1UDP\s0 in \s-1DTLS\s0. Must be used in
|
|
conjunction with \fB\-dtls\fR, \fB\-dtls1\fR or \fB\-dtls1_2\fR. This option is only
|
|
available where OpenSSL has support for \s-1SCTP\s0 enabled.
|
|
.IP "\fB\-sctp_label_bug\fR" 4
|
|
.IX Item "-sctp_label_bug"
|
|
Use the incorrect behaviour of older OpenSSL implementations when computing
|
|
endpoint-pair shared secrets for \s-1DTLS/SCTP\s0. This allows communication with
|
|
older broken implementations but breaks interoperability with correct
|
|
implementations. Must be used in conjunction with \fB\-sctp\fR. This option is only
|
|
available where OpenSSL has support for \s-1SCTP\s0 enabled.
|
|
.IP "\fB\-no_dhe\fR" 4
|
|
.IX Item "-no_dhe"
|
|
If this option is set then no \s-1DH\s0 parameters will be loaded effectively
|
|
disabling the ephemeral \s-1DH\s0 cipher suites.
|
|
.IP "\fB\-alpn\fR \fIval\fR, \fB\-nextprotoneg\fR \fIval\fR" 4
|
|
.IX Item "-alpn val, -nextprotoneg val"
|
|
These flags enable the Enable the Application-Layer Protocol Negotiation
|
|
or Next Protocol Negotiation (\s-1NPN\s0) extension, respectively. \s-1ALPN\s0 is the
|
|
\&\s-1IETF\s0 standard and replaces \s-1NPN\s0.
|
|
The \fIval\fR list is a comma-separated list of supported protocol
|
|
names. The list should contain the most desirable protocols first.
|
|
Protocol names are printable \s-1ASCII\s0 strings, for example \*(L"http/1.1\*(R" or
|
|
\&\*(L"spdy/3\*(R".
|
|
The flag \fB\-nextprotoneg\fR cannot be specified if \fB\-tls1_3\fR is used.
|
|
.IP "\fB\-keylogfile\fR \fIoutfile\fR" 4
|
|
.IX Item "-keylogfile outfile"
|
|
Appends \s-1TLS\s0 secrets to the specified keylog file such that external programs
|
|
(like Wireshark) can decrypt \s-1TLS\s0 connections.
|
|
.IP "\fB\-max_early_data\fR \fIint\fR" 4
|
|
.IX Item "-max_early_data int"
|
|
Change the default maximum early data bytes that are specified for new sessions
|
|
and any incoming early data (when used in conjunction with the \fB\-early_data\fR
|
|
flag). The default value is approximately 16k. The argument must be an integer
|
|
greater than or equal to 0.
|
|
.IP "\fB\-recv_max_early_data\fR \fIint\fR" 4
|
|
.IX Item "-recv_max_early_data int"
|
|
Specify the hard limit on the maximum number of early data bytes that will
|
|
be accepted.
|
|
.IP "\fB\-early_data\fR" 4
|
|
.IX Item "-early_data"
|
|
Accept early data where possible. Cannot be used in conjunction with \fB\-www\fR,
|
|
\&\fB\-WWW\fR, \fB\-HTTP\fR or \fB\-rev\fR.
|
|
.IP "\fB\-stateless\fR" 4
|
|
.IX Item "-stateless"
|
|
Require TLSv1.3 cookies.
|
|
.IP "\fB\-anti_replay\fR, \fB\-no_anti_replay\fR" 4
|
|
.IX Item "-anti_replay, -no_anti_replay"
|
|
Switches replay protection on or off, respectively. Replay protection is on by
|
|
default unless overridden by a configuration file. When it is on, OpenSSL will
|
|
automatically detect if a session ticket has been used more than once, TLSv1.3
|
|
has been negotiated, and early data is enabled on the server. A full handshake
|
|
is forced if a session ticket is used a second or subsequent time. Any early
|
|
data that was sent will be rejected.
|
|
.IP "\fB\-nameopt\fR \fIoption\fR" 4
|
|
.IX Item "-nameopt option"
|
|
This specifies how the subject or issuer names are displayed.
|
|
See \*(L"Name Format Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.IP "\fB\-no_ssl3\fR, \fB\-no_tls1\fR, \fB\-no_tls1_1\fR, \fB\-no_tls1_2\fR, \fB\-no_tls1_3\fR, \fB\-ssl3\fR, \fB\-tls1\fR, \fB\-tls1_1\fR, \fB\-tls1_2\fR, \fB\-tls1_3\fR" 4
|
|
.IX Item "-no_ssl3, -no_tls1, -no_tls1_1, -no_tls1_2, -no_tls1_3, -ssl3, -tls1, -tls1_1, -tls1_2, -tls1_3"
|
|
See \*(L"\s-1TLS\s0 Version Options\*(R" in \fIopenssl\fR\|(1).
|
|
.IP "\fB\-dtls\fR, \fB\-dtls1\fR, \fB\-dtls1_2\fR" 4
|
|
.IX Item "-dtls, -dtls1, -dtls1_2"
|
|
These specify the use of \s-1DTLS\s0 instead of \s-1TLS\s0.
|
|
See \*(L"\s-1TLS\s0 Version Options\*(R" in \fIopenssl\fR\|(1).
|
|
.IP "\fB\-bugs\fR, \fB\-comp\fR, \fB\-no_comp\fR, \fB\-no_ticket\fR, \fB\-serverpref\fR, \fB\-legacy_renegotiation\fR, \fB\-no_renegotiation\fR, \fB\-no_resumption_on_reneg\fR, \fB\-legacy_server_connect\fR, \fB\-no_legacy_server_connect\fR, \fB\-allow_no_dhe_kex\fR, \fB\-prioritize_chacha\fR, \fB\-strict\fR, \fB\-sigalgs\fR \fIalgs\fR, \fB\-client_sigalgs\fR \fIalgs\fR, \fB\-groups\fR \fIgroups\fR, \fB\-curves\fR \fIcurves\fR, \fB\-named_curve\fR \fIcurve\fR, \fB\-cipher\fR \fIciphers\fR, \fB\-ciphersuites\fR \fI1.3ciphers\fR, \fB\-min_protocol\fR \fIminprot\fR, \fB\-max_protocol\fR \fImaxprot\fR, \fB\-record_padding\fR \fIpadding\fR, \fB\-debug_broken_protocol\fR, \fB\-no_middlebox\fR" 4
|
|
.IX Item "-bugs, -comp, -no_comp, -no_ticket, -serverpref, -legacy_renegotiation, -no_renegotiation, -no_resumption_on_reneg, -legacy_server_connect, -no_legacy_server_connect, -allow_no_dhe_kex, -prioritize_chacha, -strict, -sigalgs algs, -client_sigalgs algs, -groups groups, -curves curves, -named_curve curve, -cipher ciphers, -ciphersuites 1.3ciphers, -min_protocol minprot, -max_protocol maxprot, -record_padding padding, -debug_broken_protocol, -no_middlebox"
|
|
See \*(L"\s-1SUPPORTED\s0 \s-1COMMAND\s0 \s-1LINE\s0 \s-1COMMANDS\s0\*(R" in \fISSL_CONF_cmd\fR\|(3) for details.
|
|
.IP "\fBxkey\fR \fIinfile\fR, \fB\-xcert\fR \fIfile\fR, \fB\-xchain\fR \fIfile\fR, \fB\-xchain_build\fR \fIfile\fR, \fB\-xcertform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR, \fB\-xkeyform\fR \fB\s-1DER\s0\fR|\fB\s-1PEM\s0\fR" 4
|
|
.IX Item "xkey infile, -xcert file, -xchain file, -xchain_build file, -xcertform DER|PEM, -xkeyform DER|PEM"
|
|
Set extended certificate verification options.
|
|
See \*(L"Extended Verification Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.IP "\fB\-CAfile\fR \fIfile\fR, \fB\-no\-CAfile\fR, \fB\-CApath\fR \fIdir\fR, \fB\-no\-CApath\fR, \fB\-CAstore\fR \fIuri\fR, \fB\-no\-CAstore\fR" 4
|
|
.IX Item "-CAfile file, -no-CAfile, -CApath dir, -no-CApath, -CAstore uri, -no-CAstore"
|
|
See \*(L"Trusted Certificate Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.IP "\fB\-rand\fR \fIfiles\fR, \fB\-writerand\fR \fIfile\fR" 4
|
|
.IX Item "-rand files, -writerand file"
|
|
See \*(L"Random State Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.IP "\fB\-engine\fR \fIid\fR" 4
|
|
.IX Item "-engine id"
|
|
See \*(L"Engine Options\*(R" in \fIopenssl\fR\|(1).
|
|
.IP "\fB\-allow_proxy_certs\fR, \fB\-attime\fR, \fB\-no_check_time\fR, \fB\-check_ss_sig\fR, \fB\-crl_check\fR, \fB\-crl_check_all\fR, \fB\-explicit_policy\fR, \fB\-extended_crl\fR, \fB\-ignore_critical\fR, \fB\-inhibit_any\fR, \fB\-inhibit_map\fR, \fB\-no_alt_chains\fR, \fB\-partial_chain\fR, \fB\-policy\fR, \fB\-policy_check\fR, \fB\-policy_print\fR, \fB\-purpose\fR, \fB\-suiteB_128\fR, \fB\-suiteB_128_only\fR, \fB\-suiteB_192\fR, \fB\-trusted_first\fR, \fB\-use_deltas\fR, \fB\-auth_level\fR, \fB\-verify_depth\fR, \fB\-verify_email\fR, \fB\-verify_hostname\fR, \fB\-verify_ip\fR, \fB\-verify_name\fR, \fB\-x509_strict\fR \fB\-issuer_checks\fR" 4
|
|
.IX Item "-allow_proxy_certs, -attime, -no_check_time, -check_ss_sig, -crl_check, -crl_check_all, -explicit_policy, -extended_crl, -ignore_critical, -inhibit_any, -inhibit_map, -no_alt_chains, -partial_chain, -policy, -policy_check, -policy_print, -purpose, -suiteB_128, -suiteB_128_only, -suiteB_192, -trusted_first, -use_deltas, -auth_level, -verify_depth, -verify_email, -verify_hostname, -verify_ip, -verify_name, -x509_strict -issuer_checks"
|
|
Set various options of certificate chain verification.
|
|
See \*(L"Verification Options\*(R" in \fIopenssl\fR\|(1) for details.
|
|
.Sp
|
|
If the server requests a client certificate, then
|
|
verification errors are displayed, for debugging, but the command will
|
|
proceed unless the \fB\-verify_return_error\fR option is used.
|
|
.SH "CONNECTED COMMANDS"
|
|
.IX Header "CONNECTED COMMANDS"
|
|
If a connection request is established with an \s-1SSL\s0 client and neither the
|
|
\&\fB\-www\fR nor the \fB\-WWW\fR option has been used then normally any data received
|
|
from the client is displayed and any key presses will be sent to the client.
|
|
.PP
|
|
Certain commands are also recognized which perform special operations. These
|
|
commands are a letter which must appear at the start of a line. They are listed
|
|
below.
|
|
.IP "\fBq\fR" 4
|
|
.IX Item "q"
|
|
End the current \s-1SSL\s0 connection but still accept new connections.
|
|
.IP "\fBQ\fR" 4
|
|
.IX Item "Q"
|
|
End the current \s-1SSL\s0 connection and exit.
|
|
.IP "\fBr\fR" 4
|
|
.IX Item "r"
|
|
Renegotiate the \s-1SSL\s0 session (TLSv1.2 and below only).
|
|
.IP "\fBR\fR" 4
|
|
.IX Item "R"
|
|
Renegotiate the \s-1SSL\s0 session and request a client certificate (TLSv1.2 and below
|
|
only).
|
|
.IP "\fBP\fR" 4
|
|
.IX Item "P"
|
|
Send some plain text down the underlying \s-1TCP\s0 connection: this should
|
|
cause the client to disconnect due to a protocol violation.
|
|
.IP "\fBS\fR" 4
|
|
.IX Item "S"
|
|
Print out some session cache status information.
|
|
.IP "\fBk\fR" 4
|
|
.IX Item "k"
|
|
Send a key update message to the client (TLSv1.3 only)
|
|
.IP "\fBK\fR" 4
|
|
.IX Item "K"
|
|
Send a key update message to the client and request one back (TLSv1.3 only)
|
|
.IP "\fBc\fR" 4
|
|
.IX Item "c"
|
|
Send a certificate request to the client (TLSv1.3 only)
|
|
.SH "NOTES"
|
|
.IX Header "NOTES"
|
|
This command can be used to debug \s-1SSL\s0 clients. To accept connections
|
|
from a web browser the command:
|
|
.PP
|
|
.Vb 1
|
|
\& openssl s_server \-accept 443 \-www
|
|
.Ve
|
|
.PP
|
|
can be used for example.
|
|
.PP
|
|
Although specifying an empty list of CAs when requesting a client certificate
|
|
is strictly speaking a protocol violation, some \s-1SSL\s0 clients interpret this to
|
|
mean any \s-1CA\s0 is acceptable. This is useful for debugging purposes.
|
|
.PP
|
|
The session parameters can printed out using the \fIopenssl\-sess_id\fR\|(1) command.
|
|
.SH "BUGS"
|
|
.IX Header "BUGS"
|
|
Because this program has a lot of options and also because some of the
|
|
techniques used are rather old, the C source for this command is rather
|
|
hard to read and not a model of how things should be done.
|
|
A typical \s-1SSL\s0 server program would be much simpler.
|
|
.PP
|
|
The output of common ciphers is wrong: it just gives the list of ciphers that
|
|
OpenSSL recognizes and the client supports.
|
|
.PP
|
|
There should be a way for this command to print out details
|
|
of any unknown cipher suites a client says it supports.
|
|
.SH "SEE ALSO"
|
|
.IX Header "SEE ALSO"
|
|
\&\fIopenssl\fR\|(1),
|
|
\&\fIopenssl\-sess_id\fR\|(1),
|
|
\&\fIopenssl\-s_client\fR\|(1),
|
|
\&\fIopenssl\-ciphers\fR\|(1),
|
|
\&\fISSL_CONF_cmd\fR\|(3),
|
|
\&\fISSL_CTX_set_max_send_fragment\fR\|(3),
|
|
\&\fISSL_CTX_set_split_send_fragment\fR\|(3),
|
|
\&\fISSL_CTX_set_max_pipelines\fR\|(3),
|
|
\&\fIossl_store\-file\fR\|(7)
|
|
.SH "HISTORY"
|
|
.IX Header "HISTORY"
|
|
The \-no_alt_chains option was added in OpenSSL 1.1.0.
|
|
.PP
|
|
The
|
|
\&\-allow\-no\-dhe\-kex and \-prioritize_chacha options were added in OpenSSL 1.1.1.
|
|
.SH "COPYRIGHT"
|
|
.IX Header "COPYRIGHT"
|
|
Copyright 2000\-2019 The OpenSSL Project Authors. All Rights Reserved.
|
|
.PP
|
|
Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file \s-1LICENSE\s0 in the source distribution or at
|
|
<https://www.openssl.org/source/license.html>.
|