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", "precedence_evidence": ["The following environment variables can be used to select default connection parameter values, which will be used by PQconnectdb , PQsetdbLogin and PQsetdb if no value is directly specified by the calling code. These are useful to avoid hard-coding database connection information into simple client applications, for example.", "Service names can be defined in either a per-user service file or a system-wide file. If the same service name exists in both the user and the system file, the user file takes precedence. By default, the per-user service file is named ~/.pg_service.conf . On Microsoft Windows, it is named %APPDATA%\\postgresql\\.pg_service.conf (where %APPDATA% refers to the Application Data subdirectory in the user's profile). A different file name can be specified by setting the environment variable PGSERVICEFILE . The system-wide file is named pg_service.conf . By default it is sought in the etc directory of the PostgreSQL installation (use pg_config --sysconfdir to identify this directory precisely). Another directory, but not a different file name, can be specified by setting the environment variable PGSYSCONFDIR .", "Connection parameters obtained from a service file are combined with parameters obtained from other sources. A service file setting overrides the corresponding environment variable, and in turn can be overridden by a value given directly in the connection string. For example, using the above service file, a connection string service=mydb port=5434 will use host somehost , port 5434 , user admin , and other parameters as set by environment variables or built-in defaults."]}, "15": {"facts": [{"label": "\u5ba2\u6237\u7aef\u5e93", "value": "libpq 15.19"}, {"label": "\u624b\u518c\u5b9a\u4e49", "value": "\u624b\u518c\u5df2\u8bb0\u8f7d"}, {"label": "\u6e90\u7801\u4e2d\u7684\u73af\u5883\u53d8\u91cf\u56de\u9000", "value": "PGSSLSNI"}, {"label": "\u7f16\u8bd1\u65f6\u56de\u9000\u8868\u8fbe\u5f0f", "value": "\"1\""}], "tables": [{"key": "environment", "rows": [{"name": {"url": "/docs/15/libpq-envars.html", "text": "PGSSLSNI"}, "description": "PGSSLSNI \u7684\u884c\u4e3a\u4e0e sslsni \u8fde\u63a5\u53c2\u6570\u76f8\u540c\u3002"}], "title": "\u73af\u5883\u53d8\u91cf\u56de\u9000", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u624b\u518c\u8bb0\u8f7d\u7684\u884c\u4e3a"}]}], "keyword": "sslsni", "related": [{"url": 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\n \u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55\u201c\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u201d\uff08SNI\uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002\n
\n \u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u53ef\u4ee5\u88ab SSL \u611f\u77e5\u4ee3\u7406\u4f7f\u7528\uff0c\u4ee5\u4fbf\u5728\u4e0d\u89e3\u5bc6 SSL \u6d41\u7684\u60c5\u51b5\u4e0b\u8def\u7531\u8fde\u63a5\u3002\uff08\u8bf7\u6ce8\u610f\uff0c\u8fd9\u9700\u8981\u4e00\u4e2a\u4e86\u89e3 PostgreSQL \u534f\u8bae\u63e1\u624b\u7684\u4ee3\u7406\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u4efb\u4f55 SSL \u4ee3\u7406\u3002\uff09\u7136\u800c\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u3002\n
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By default it is sought in the etc directory of the PostgreSQL installation (use pg_config --sysconfdir to identify this directory precisely). Another directory, but not a different file name, can be specified by setting the environment variable PGSYSCONFDIR .", "Connection parameters obtained from a service file are combined with parameters obtained from other sources. A service file setting overrides the corresponding environment variable, and in turn can be overridden by a value given directly in the connection string. 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sslsni\u3002
\n \u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55\u201c\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u201d\uff08SNI\uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002\n
\n \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct\u3002\uff09\u4e0d\u8fc7\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002\n
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", "precedence_evidence": ["The following environment variables can be used to select default connection parameter values, which will be used by PQconnectdb , PQsetdbLogin and PQsetdb if no value is directly specified by the calling code. These are useful to avoid hard-coding database connection information into simple client applications, for example.", "Service names can be defined in either a per-user service file or a system-wide file. If the same service name exists in both the user and the system file, the user file takes precedence. By default, the per-user service file is named ~/.pg_service.conf . On Microsoft Windows, it is named %APPDATA%\\postgresql\\.pg_service.conf (where %APPDATA% refers to the Application Data subdirectory in the user's profile). A different file name can be specified by setting the environment variable PGSERVICEFILE . The system-wide file is named pg_service.conf . By default it is sought in the etc directory of the PostgreSQL installation (use pg_config --sysconfdir to identify this directory precisely). Another directory, but not a different file name, can be specified by setting the environment variable PGSYSCONFDIR .", "Connection parameters obtained from a service file are combined with parameters obtained from other sources. A service file setting overrides the corresponding environment variable, and in turn can be overridden by a value given directly in the connection string. For example, using the above service file, a connection string service=mydb port=5434 will use host somehost , port 5434 , user admin , and other parameters as set by environment variables or built-in defaults."], "center_zh_rendered": "\u8fde\u63a5\u53c2\u6570 sslsni\u3002
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\n \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct\u3002\uff09\u4e0d\u8fc7\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002\n
\u8fde\u63a5\u53c2\u6570 sslsni\u3002
\n \u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55\u201c\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u201d\uff08SNI\uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002\n
\n \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct\u3002\uff09\u4e0d\u8fc7\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
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\n \u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55\u201c\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u201d\uff08SNI\uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002\n
\n \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct\u3002\uff09\u4e0d\u8fc7\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002\n
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"sections_zh": [{"title": "\u9ed8\u8ba4\u503c\u89e3\u6790\u4e0e\u670d\u52a1\u6587\u4ef6\u4f18\u5148\u7ea7", "paragraphs": ["\u4ee5\u4e0b\u73af\u5883\u53d8\u91cf\u53ef\u7528\u4e8e\u9009\u62e9\u8fde\u63a5\u53c2\u6570\u7684\u9ed8\u8ba4\u503c\uff0c\u4f9b PQconnectdb \u3001 PQsetdbLogin \u548c PQsetdb \u5728\u8c03\u7528\u4ee3\u7801\u672a\u76f4\u63a5\u6307\u5b9a\u53c2\u6570\u503c\u65f6\u4f7f\u7528\u3002\u4f8b\u5982\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u5728\u7b80\u5355\u7684\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e2d\u786c\u7f16\u7801\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\u3002", "\u670d\u52a1\u540d\u79f0\u53ef\u4ee5\u5728\u6bcf\u4e2a\u7528\u6237\u7684\u670d\u52a1\u6587\u4ef6\u6216\u7cfb\u7edf\u8303\u56f4\u7684\u6587\u4ef6\u4e2d\u5b9a\u4e49\u3002\u5982\u679c\u540c\u4e00\u4e2a\u670d\u52a1\u540d\u79f0\u5b58\u5728\u4e8e\u7528\u6237\u6587\u4ef6\u548c\u7cfb\u7edf\u6587\u4ef6\u4e2d\uff0c\u5219\u7528\u6237\u6587\u4ef6\u4f18\u5148\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6bcf\u4e2a\u7528\u6237\u7684\u670d\u52a1\u6587\u4ef6\u540d\u4e3a ~/.pg_service.conf \u3002\u5728Microsoft Windows\u4e0a\uff0c\u5b83\u7684\u540d\u79f0\u4e3a %APPDATA%\\postgresql\\.pg_service.conf \uff08\u5176\u4e2d %APPDATA% \u6307\u7528\u6237\u914d\u7f6e\u6587\u4ef6\u5939\u4e2d\u7684\u5e94\u7528\u6570\u636e\u5b50\u76ee\u5f55\uff09\u3002\u53ef\u4ee5\u901a\u8fc7\u5728 libpq \u8fde\u63a5\u5b57\u7b26\u4e32\u4e2d\u4f7f\u7528 servicefile \u5173\u952e\u5b57\uff0c\u6216\u8005\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf PGSERVICEFILE \u6765\u6307\u5b9a\u4e0d\u540c\u7684\u6587\u4ef6\u540d\u3002\u7cfb\u7edf\u8303\u56f4\u7684\u6587\u4ef6\u540d\u4e3a pg_service.conf \u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5728 PostgreSQL \u5b89\u88c5\u7684 etc \u76ee\u5f55\u4e2d\u5bfb\u627e\uff08\u4f7f\u7528 pg_config --sysconfdir \u6765\u51c6\u786e\u8bc6\u522b\u6b64\u76ee\u5f55\uff09\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf PGSYSCONFDIR \u6765\u6307\u5b9a\u53e6\u4e00\u4e2a\u76ee\u5f55\uff0c\u4f46\u4e0d\u80fd\u6307\u5b9a\u4e0d\u540c\u7684\u6587\u4ef6\u540d\u3002", 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"/docs/devel/libpq-connect.html", "method": "same-major semantic node", "sha256": "80a1ddba976c7228bb9d179e08545f0a6328ffc9b880481df17a53fdebf42bb5", "language": "zh", "matched_nodes": ["#LIBPQ-CONNECT/div[7]/div[2]/dl[0]/dd[67]/p[1]"]}, {"url": "/docs/devel/libpq-envars.html", "method": "same-major semantic node", "sha256": "b4afd6d100d2be289d48e1a6f6fb9804dd0b684798b7dabf8bae7d3db074117f", "language": "zh", "matched_nodes": ["#LIBPQ-ENVARS/div[3]/ul[0]/li[23]", "#LIBPQ-ENVARS/p[2]"]}, {"url": "/docs/devel/libpq-pgservice.html", "method": "same-major semantic node", "sha256": "acea589bbba517979fe815bd3bff32cd6d5e6323e1d5b4f395d7864338868b26", "language": "zh", "matched_nodes": ["#LIBPQ-PGSERVICE/p[5]", "#LIBPQ-PGSERVICE/p[9]"]}], "language": "zh", "original_text": {"/summary": "If set to 1 (default), libpq sets the TLS extension \u201c Server Name Indication \u201d ( SNI ) on SSL-enabled connections. By setting this parameter to 0, this is turned off.", "/versions/20/description/0": "If set to 1 (default), libpq sets the TLS extension \u201c Server Name Indication \u201d ( SNI ) on SSL-enabled connections. By setting this parameter to 0, this is turned off.", "/versions/20/facts/0/label": "Client library", "/versions/20/facts/1/label": "Manual definition", "/versions/20/facts/1/value": "Documented", "/versions/20/facts/2/label": "Source environment fallback", "/versions/20/facts/3/label": "Compiled fallback expression", "/versions/20/tables/0/title": "Environment fallback", "/versions/20/related/0/label": "Connection service file", "/versions/20/related/1/label": "Password file", "/versions/20/related/2/label": "All libpq environment variables", "/versions/20/sections/0/title": "Default resolution and service-file precedence", "/versions/20/sections/1/title": "Environment variable evidence", "/versions/20/sections/0/paragraphs/0": "The following environment variables can be used to select default connection parameter values, which will be used by PQconnectdb , PQsetdbLogin and PQsetdb if no value is directly specified by the calling code. These are useful to avoid hard-coding database connection information into simple client applications, for example.", "/versions/20/sections/0/paragraphs/1": "Service names can be defined in either a per-user service file or a system-wide file. If the same service name exists in both the user and the system file, the user file takes precedence. By default, the per-user service file is named ~/.pg_service.conf . On Microsoft Windows, it is named %APPDATA%\\postgresql\\.pg_service.conf (where %APPDATA% refers to the Application Data subdirectory in the user's profile). A different file name can be specified using the servicefile key word in a libpq connection string or by setting the environment variable PGSERVICEFILE . The system-wide file is named pg_service.conf . By default it is sought in the etc directory of the PostgreSQL installation (use pg_config --sysconfdir to identify this directory precisely). Another directory, but not a different file name, can be specified by setting the environment variable PGSYSCONFDIR .", "/versions/20/sections/0/paragraphs/2": "Connection parameters obtained from a service file are combined with parameters obtained from other sources. A service file setting overrides the corresponding environment variable, and in turn can be overridden by a value given directly in the connection string. 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"\u670d\u52a1\u540d\u79f0\u53ef\u4ee5\u5728\u6bcf\u4e2a\u7528\u6237\u7684\u670d\u52a1\u6587\u4ef6\u6216\u7cfb\u7edf\u8303\u56f4\u7684\u6587\u4ef6\u4e2d\u5b9a\u4e49\u3002\u5982\u679c\u540c\u4e00\u4e2a\u670d\u52a1\u540d\u79f0\u5b58\u5728\u4e8e\u7528\u6237\u6587\u4ef6\u548c\u7cfb\u7edf\u6587\u4ef6\u4e2d\uff0c\u5219\u7528\u6237\u6587\u4ef6\u4f18\u5148\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6bcf\u4e2a\u7528\u6237\u7684\u670d\u52a1\u6587\u4ef6\u540d\u4e3a ~/.pg_service.conf \u3002\u5728Microsoft Windows\u4e0a\uff0c\u5b83\u7684\u540d\u79f0\u4e3a %APPDATA%\\postgresql\\.pg_service.conf \uff08\u5176\u4e2d %APPDATA% \u6307\u7528\u6237\u914d\u7f6e\u6587\u4ef6\u5939\u4e2d\u7684\u5e94\u7528\u6570\u636e\u5b50\u76ee\u5f55\uff09\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf PGSERVICEFILE \u6765\u6307\u5b9a\u4e0d\u540c\u7684\u6587\u4ef6\u540d\u3002\u7cfb\u7edf\u8303\u56f4\u7684\u6587\u4ef6\u540d\u4e3a pg_service.conf \u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5728 PostgreSQL \u5b89\u88c5\u7684 etc \u76ee\u5f55\u4e2d\u5bfb\u627e\uff08\u4f7f\u7528 pg_config --sysconfdir \u6765\u51c6\u786e\u8bc6\u522b\u6b64\u76ee\u5f55\uff09\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf PGSYSCONFDIR \u6765\u6307\u5b9a\u53e6\u4e00\u4e2a\u76ee\u5f55\uff0c\u4f46\u4e0d\u80fd\u6307\u5b9a\u4e0d\u540c\u7684\u6587\u4ef6\u540d\u3002", "\u4ece\u670d\u52a1\u6587\u4ef6\u4e2d\u83b7\u53d6\u7684\u8fde\u63a5\u53c2\u6570\u4f1a\u4e0e\u5176\u4ed6\u6765\u6e90\u7684\u53c2\u6570\u5408\u5e76\u3002\u670d\u52a1\u6587\u4ef6\u4e2d\u7684\u8bbe\u7f6e\u4f1a\u8986\u76d6\u76f8\u5e94\u7684\u73af\u5883\u53d8\u91cf\uff0c\u800c\u8fde\u63a5\u5b57\u7b26\u4e32\u4e2d\u76f4\u63a5\u7ed9\u51fa\u7684\u503c\u53c8\u4f1a\u8986\u76d6\u670d\u52a1\u6587\u4ef6\u4e2d\u7684\u8bbe\u7f6e\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4e0a\u8ff0\u670d\u52a1\u6587\u4ef6\u65f6\uff0c\u8fde\u63a5\u5b57\u7b26\u4e32 service=mydb port=5434 \u5c06\u4f7f\u7528\u4e3b\u673a somehost \u3001\u7aef\u53e3 5434 \u3001\u7528\u6237 admin \uff0c\u4ee5\u53ca\u7531\u73af\u5883\u53d8\u91cf\u6216\u5185\u7f6e\u9ed8\u8ba4\u503c\u8bbe\u7f6e\u7684\u5176\u4ed6\u53c2\u6570\u3002"]}, {"title": "\u73af\u5883\u53d8\u91cf\u8bc1\u636e", "paragraphs": ["PGSSLSNI \u7684\u884c\u4e3a\u4e0e sslsni \u8fde\u63a5\u53c2\u6570\u76f8\u540c\u3002"]}], "localization": {"status": "complete", "sources": [{"url": "/docs/18/libpq-connect.html", "method": "same-major semantic node", "sha256": "bae58c13a65be235aa0408ef12f8bcc7e48f2908cd71080a7dedec225a74c083", "language": "zh", "matched_nodes": ["#LIBPQ-CONNECT/div[7]/div[2]/dl[0]/dd[67]/p[1]"]}, {"url": "/docs/18/libpq-envars.html", "method": "same-major semantic node", "sha256": "8423affb67ef7d4f700d7ccc8c0ef66629341568c8d72530a0c765f3d155da2f", "language": "zh", "matched_nodes": ["#LIBPQ-ENVARS/div[3]/ul[0]/li[23]", "#LIBPQ-ENVARS/p[2]"]}, {"url": "/docs/18/libpq-pgservice.html", "method": "same-major semantic node", "sha256": "a06dfcdffbbdf6bd55987cade2d9ff1db6cbfd9f75eb80c7866e8792cd70463e", 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By setting this parameter to 0, this is turned off.", "/versions/18/facts/0/label": "Client library", "/versions/18/facts/1/label": "Manual definition", "/versions/18/facts/1/value": "Documented", "/versions/18/facts/2/label": "Source environment fallback", "/versions/18/facts/3/label": "Compiled fallback expression", "/versions/18/tables/0/title": "Environment fallback", "/versions/18/related/0/label": "Connection service file", "/versions/18/related/1/label": "Password file", "/versions/18/related/2/label": "All libpq environment variables", "/versions/18/sections/0/title": "Default resolution and service-file precedence", "/versions/18/sections/1/title": "Environment variable evidence", "/versions/18/sections/0/paragraphs/0": "The following environment variables can be used to select default connection parameter values, which will be used by PQconnectdb , PQsetdbLogin and PQsetdb if no value is directly specified by the calling code. These are useful to avoid hard-coding database connection information into simple client applications, for example.", "/versions/18/sections/0/paragraphs/1": "Service names can be defined in either a per-user service file or a system-wide file. If the same service name exists in both the user and the system file, the user file takes precedence. By default, the per-user service file is named ~/.pg_service.conf . On Microsoft Windows, it is named %APPDATA%\\postgresql\\.pg_service.conf (where %APPDATA% refers to the Application Data subdirectory in the user's profile). A different file name can be specified by setting the environment variable PGSERVICEFILE . The system-wide file is named pg_service.conf . By default it is sought in the etc directory of the PostgreSQL installation (use pg_config --sysconfdir to identify this directory precisely). Another directory, but not a different file name, can be specified by setting the environment variable PGSYSCONFDIR .", "/versions/18/sections/0/paragraphs/2": "Connection parameters obtained from a service file are combined with parameters obtained from other sources. A service file setting overrides the corresponding environment variable, and in turn can be overridden by a value given directly in the connection string. For example, using the above service file, a connection string service=mydb port=5434 will use host somehost , port 5434 , user admin , and other parameters as set by environment variables or built-in defaults.", "/versions/18/sections/1/paragraphs/0": "PGSSLSNI behaves the same as the sslsni connection parameter.", "/versions/18/tables/0/columns/0/label": "Variable", "/versions/18/tables/0/columns/1/label": "Documented behavior", "/versions/18/tables/0/rows/0/description": "PGSSLSNI behaves the same as the sslsni connection parameter."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "1543346d2659b35c89ffc1f46845c467a1cb131039c0269d5a2552d38195cf03", "canonical_center_text_hash": "ba6df3d2b8bf7b83185ccf377d1c138bda15b5ab9714a5fdf361484a4e7d7ab5"}, "source_option": {"keyword": "sslsni", "declaration": "\"sslsni\", \"PGSSLSNI\", \"1\", NULL, \"SSL-SNI\", \"\", 1, offsetof(struct pg_conn, sslsni)", "environment": "PGSSLSNI", "source_notes": [], "compiled_default_expression": "\"1\""}, "description_zh": "\u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55 \u201c \u670d\u52a1\u5668\u540d\u79f0\u6307\u793a \u201d \uff08 SNI \uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002 \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct \u3002\uff09\u4e0d\u8fc7\uff0c SNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002", "comparison_data": {"keyword": "sslsni", "definition": "If set to 1 (default), libpq sets the TLS extension \u201c Server Name Indication \u201d ( SNI ) on SSL-enabled connections. By setting this parameter to 0, this is turned off. The Server Name Indication can be used by SSL-aware proxies to route connections without having to decrypt the SSL stream. (Note that unless the proxy is aware of the PostgreSQL protocol handshake this would require setting sslnegotiation to direct .) However, SNI makes the destination host name appear in cleartext in the network traffic, so it might be undesirable in some cases.", "documented": true, "environment": "PGSSLSNI", "default_evidence": ["If set to 1 (default), libpq sets the TLS extension \u201c Server Name Indication \u201d ( SNI ) on SSL-enabled connections. By setting this parameter to 0, this is turned off."], "compiled_default_expression": "\"1\""}, "comparison_hash": "93473b07d9ee9a4190879ee049aca54b5894a064621bfafa56596eaf6f8887ec", "manual_language": "zh", "default_evidence": ["If set to 1 (default), libpq sets the TLS extension \u201c Server Name Indication \u201d ( SNI ) on SSL-enabled connections. By setting this parameter to 0, this is turned off."], "description_zh_html": "\u8fde\u63a5\u53c2\u6570 sslsni\u3002
\n \u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55\u201c\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u201d\uff08SNI\uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002\n
\n \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct\u3002\uff09\u4e0d\u8fc7\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
", "precedence_evidence": ["The following environment variables can be used to select default connection parameter values, which will be used by PQconnectdb , PQsetdbLogin and PQsetdb if no value is directly specified by the calling code. These are useful to avoid hard-coding database connection information into simple client applications, for example.", "Service names can be defined in either a per-user service file or a system-wide file. If the same service name exists in both the user and the system file, the user file takes precedence. By default, the per-user service file is named ~/.pg_service.conf . On Microsoft Windows, it is named %APPDATA%\\postgresql\\.pg_service.conf (where %APPDATA% refers to the Application Data subdirectory in the user's profile). A different file name can be specified by setting the environment variable PGSERVICEFILE . The system-wide file is named pg_service.conf . By default it is sought in the etc directory of the PostgreSQL installation (use pg_config --sysconfdir to identify this directory precisely). Another directory, but not a different file name, can be specified by setting the environment variable PGSYSCONFDIR .", "Connection parameters obtained from a service file are combined with parameters obtained from other sources. A service file setting overrides the corresponding environment variable, and in turn can be overridden by a value given directly in the connection string. For example, using the above service file, a connection string service=mydb port=5434 will use host somehost , port 5434 , user admin , and other parameters as set by environment variables or built-in defaults."], "center_zh_rendered": "\u8fde\u63a5\u53c2\u6570 sslsni\u3002
\n \u5982\u679c\u8bbe\u7f6e\u4e3a 1\uff08\u9ed8\u8ba4\u503c\uff09\uff0clibpq \u4f1a\u5728\u542f\u7528 SSL \u7684\u8fde\u63a5\u4e0a\u8bbe\u7f6e TLS \u6269\u5c55\u201c\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u201d\uff08SNI\uff09\u3002\u901a\u8fc7\u5c06\u6b64\u53c2\u6570\u8bbe\u7f6e\u4e3a 0\uff0c\u53ef\u4ee5\u5173\u95ed\u6b64\u529f\u80fd\u3002\n
\n \u652f\u6301 SSL \u7684\u4ee3\u7406\u53ef\u4ee5\u5229\u7528\u670d\u52a1\u5668\u540d\u79f0\u6307\u793a\u6765\u8def\u7531\u8fde\u63a5\uff0c\u800c\u65e0\u9700\u89e3\u5bc6 SSL \u6d41\u3002\uff08\u6ce8\u610f\uff0c\u9664\u975e\u4ee3\u7406\u80fd\u591f\u8bc6\u522b PostgreSQL \u534f\u8bae\u63e1\u624b\uff0c\u5426\u5219\u9700\u8981\u5c06 sslnegotiation \u8bbe\u4e3a direct\u3002\uff09\u4e0d\u8fc7\uff0cSNI \u4f1a\u4f7f\u76ee\u6807\u4e3b\u673a\u540d\u4ee5\u660e\u6587\u5f62\u5f0f\u51fa\u73b0\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u5e0c\u671b\u4f7f\u7528\u5b83\u3002\n
\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002
"}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}