NAME

       openssl-env - OpenSSL environment variables

DESCRIPTION

       The OpenSSL libraries use environment variables to override the compiled-in default paths
       for various data.  To avoid security risks, the environment is usually not consulted when
       the executable is set-user-ID or set-group-ID.

       CTLOG_FILE
           Specifies the path to a certificate transparency log list.  See CTLOG_STORE_new(3).

       OPENSSL
           Specifies the path to the openssl executable. Used by the rehash script (see "Script
           Configuration" in openssl-rehash(1)) and by the CA.pl script (see "NOTES" in CA.pl(1)

       OPENSSL_CONF, OPENSSL_CONF_INCLUDE
           Specifies the path to a configuration file and the directory for included files.  See
           config(5).

       OPENSSL_CONFIG
           Specifies a configuration option and filename for the req and ca commands invoked by
           the CA.pl script.  See CA.pl(1).

       OPENSSL_ENGINES
           Specifies the directory from which dynamic engines are loaded.  See openssl-engine(1).

       OPENSSL_MALLOC_FD, OPENSSL_MALLOC_FAILURES
           If built with debugging, this allows memory allocation to fail.  See
           OPENSSL_malloc(3).

       OPENSSL_MODULES
           Specifies the directory from which cryptographic providers are loaded.  Equivalently,
           the generic -provider-path command-line option may be used.

       OPENSSL_WIN32_UTF8
           If set, then UI_OpenSSL(3) returns UTF-8 encoded strings, rather than ones encoded in
           the current code page, and the openssl(1) program also transcodes the command-line
           parameters from the current code page to UTF-8.  This environment variable is only
           checked on Microsoft Windows platforms.

       RANDFILE
           The state file for the random number generator.  This should not be needed in normal
           use.  See RAND_load_file(3).

       SSL_CERT_DIR, SSL_CERT_FILE
           Specify the default directory or file containing CA certificates.  See
           SSL_CTX_load_verify_locations(3).

       TSGET
           Additional arguments for the tsget(1) command.

       OPENSSL_ia32cap, OPENSSL_sparcv9cap, OPENSSL_ppccap, OPENSSL_armcap, OPENSSL_s390xcap,
       OPENSSL_riscvcap
           OpenSSL supports a number of different algorithm implementations for various machines
           and, by default, it determines which to use based on the processor capabilities and
           run time feature enquiry.  These environment variables can be used to exert more
           control over this selection process.  See OPENSSL_ia32cap(3), OPENSSL_s390xcap(3).

       NO_PROXY, HTTPS_PROXY, HTTP_PROXY
           Specify a proxy hostname.  See OSSL_HTTP_parse_url(3).

       QLOGDIR
           Specifies a QUIC qlog output directory. See openssl-qlog(7).

       OSSL_QFILTER
           Used to set a QUIC qlog filter specification. See openssl-qlog(7).

COPYRIGHT

       Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the Apache License 2.0 (the "License").  You may not use this file except
       in compliance with the License.  You can obtain a copy in the file LICENSE in the source
       distribution or at <https://www.openssl.org/source/license.html>.