{"kind": "auth", "major": "18", "item": {"slug": "peer", "name": "peer", "name_zh": "", "category": "Authentication and access control", "summary": "Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 20.9 for details.", "aliases": [], "content_hash": "845abdbd37cdd96ae1125e4660eddb2ec0314365050b622c9b9061f0236ebceb", "versions": {"10": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. 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See <a class=\"xref\" href=\"/docs/10/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. 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This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication</h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <span class=\"productname\">peer</span>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/11/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. 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This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication</h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <span class=\"productname\">peer</span>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/12/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/12/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "13": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. 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This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication</h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <span class=\"productname\">peer</span>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/13/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/13/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "14": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. See Section 21.2 for details."}], "title": "Documented method options and alternatives", "columns": [{"key": "name", "label": "Option or term"}, {"key": "description", "label": "Meaning"}]}], "aliases": [], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "14.24", "major": "14", "channel": "stable", "revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897", "source_sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897", "catalog_fingerprint": "b272e6a82e4c46efda81c3a6a4cdf7de6a83dfff7f02f226a392fbe9acdd3adb"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, {"url": "/docs/14/auth-peer.html", "path": "auth-peer.html", "label": "PostgreSQL 14 English manual", "sha256": "5a4ad1c64b2d283a2b7df18c94949efc5e0b218bd481555b8a5973d8842d94f4"}, {"url": "/docs/14/auth-pg-hba-conf.html", "path": "auth-pg-hba-conf.html", "label": "PostgreSQL 14 English manual", "sha256": "c9a75f04fd4a1069ea261ba061578a75c47a4b7e0bbf88761502fd4c19ccbc3f"}], "sections": [], "signature": "", "attributes": {"method": "peer", "inventory": "User-visible source authentication method", "configuration": "pg_hba.conf"}, "description": ["Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 21.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">21.9.\u00a0Peer Authentication</h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <span class=\"productname\">peer</span>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/14/auth-username-maps.html\" title=\"21.2.\u00a0User Name Maps\">Section\u00a021.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/14/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "15": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. 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This is only available for local connections. See Section 21.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">21.9.\u00a0Peer Authentication</h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/15/auth-username-maps.html\" title=\"21.2.\u00a0User Name Maps\">Section\u00a021.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/15/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "16": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. See Section 21.2 for details."}], "title": "Documented method options and alternatives", "columns": [{"key": "name", "label": "Option or term"}, {"key": "description", "label": "Meaning"}]}], "aliases": [], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "16.15", "major": "16", "channel": "stable", "revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed", "source_sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed", "catalog_fingerprint": "fa133458dc8f52e15083b4f59b7a582e2e378b608d3ac5c53054df458a374e23"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, {"url": "/docs/16/auth-peer.html", "path": "auth-peer.html", "label": "PostgreSQL 16 English manual", "sha256": "bacfd0b795d1c997380f0242252ccebbbd0c94489ddeeeba551ea1783a441820"}, {"url": "/docs/16/auth-pg-hba-conf.html", "path": "auth-pg-hba-conf.html", "label": "PostgreSQL 16 English manual", "sha256": "ccc5146375a184646d5992edbc693e12c0de4431a35141d6b56c8dd6b3c52132"}], "sections": [], "signature": "", "attributes": {"method": "peer", "inventory": "User-visible source authentication method", "configuration": "pg_hba.conf"}, "description": ["Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 21.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">21.9.\u00a0Peer Authentication </h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/16/auth-username-maps.html\" title=\"21.2.\u00a0User Name Maps\">Section\u00a021.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/16/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "17": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. See Section 20.2 for details."}], "title": "Documented method options and alternatives", "columns": [{"key": "name", "label": "Option or term"}, {"key": "description", "label": "Meaning"}]}], "aliases": [], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "source_sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979", "catalog_fingerprint": "4bbe3ac77becd618478f66aec420a533e9017be356c5c1d51a4b17f0fd497c07"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, {"url": "/docs/17/auth-peer.html", "path": "auth-peer.html", "label": "PostgreSQL 17 English manual", "sha256": "265d8779dcb6fc58b376996fc98d4cbbb4a51934ec3da4adf0d45d0a912af3bb"}, {"url": "/docs/17/auth-pg-hba-conf.html", "path": "auth-pg-hba-conf.html", "label": "PostgreSQL 17 English manual", "sha256": "00c7a7c25d46aa1b2f24cd744cd4990ca4218cfafed2a4cab8c1dc1092090bba"}], "sections": [], "signature": "", "attributes": {"method": "peer", "inventory": "User-visible source authentication method", "configuration": "pg_hba.conf"}, "description": ["Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication </h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/17/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/17/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "18": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. See Section 20.2 for details."}], "title": "Documented method options and alternatives", "columns": [{"key": "name", "label": "Option or term"}, {"key": "description", "label": "Meaning"}]}], "aliases": [], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f", "catalog_fingerprint": "65c93d6048ef30e61023a84f9680fa6a92b1c383b7eb226741170077eb078502"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, {"url": "/docs/18/auth-peer.html", "path": "auth-peer.html", "label": "PostgreSQL 18 English manual", "sha256": "86d38705f6b31453e2191708e816d77363fbc13bb8112c4dff6da88869258eac"}, {"url": "/docs/18/auth-pg-hba-conf.html", "path": "auth-pg-hba-conf.html", "label": "PostgreSQL 18 English manual", "sha256": "6340d4abea2e0a3482afc31bcd1599a0fa10dc28a6f1e05d79ba831e2dd0b4c9"}], "sections": [], "signature": "", "attributes": {"method": "peer", "inventory": "User-visible source authentication method", "configuration": "pg_hba.conf"}, "description": ["Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication </h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/18/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/18/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "19": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. See Section 20.2 for details."}], "title": "Documented method options and alternatives", "columns": [{"key": "name", "label": "Option or term"}, {"key": "description", "label": "Meaning"}]}], "aliases": [], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19beta4/postgresql-19beta4.tar.bz2", "label": "19beta4", "major": "19", "channel": "preview", "revision": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86", "source_sha256": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86", "catalog_fingerprint": "62fbf1a3689dbe8bf7e6b3372cfe6fbf867581427b3858a94c8419b77a4d2d1d"}, "sources": [{"url": "https://ftp.postgresql.org/pub/source/v19beta4/postgresql-19beta4.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86"}, {"url": "/docs/19/auth-peer.html", "path": "auth-peer.html", "label": "PostgreSQL 19 English manual", "sha256": "815d355428e08326052cc334a55c8e7efdf9c104af8ca1e2a776e26b3d3d6ee1"}, {"url": "/docs/19/auth-pg-hba-conf.html", "path": "auth-pg-hba-conf.html", "label": "PostgreSQL 19 English manual", "sha256": "d05e9155d5388148c2c680ff208b62c6b3b0b1c30f302ada5ab4befec36c19b7"}], "sections": [], "signature": "", "attributes": {"method": "peer", "inventory": "User-visible source authentication method", "configuration": "pg_hba.conf"}, "description": ["Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication </h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/19/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/19/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "20": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. See Section 20.2 for details."}], "title": "Documented method options and alternatives", "columns": [{"key": "name", "label": "Option or term"}, {"key": "description", "label": "Meaning"}]}], "aliases": [], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "20devel", "major": "20", "channel": "devel", "revision": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41", "source_sha256": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41", "catalog_fingerprint": "398fbb9f262264053c02fbf79f88be0a6770c1473faa6ecd5931d6ec41b8258b", "source_snapshot_utc": "26-Sep-2026 20:22"}, "sources": [{"url": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "Matching PostgreSQL source archive", "sha256": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41"}, {"url": "/docs/devel/auth-peer.html", "path": "auth-peer.html", "label": "PostgreSQL 20 English manual", "sha256": "b3685f69e53c59ed779893c1bc5b444f2234c8f8c2c659da7512d6d00b370721"}, {"url": "/docs/devel/auth-pg-hba-conf.html", "path": "auth-pg-hba-conf.html", "label": "PostgreSQL 20 English manual", "sha256": "cf2069461da3eec62f6fb4e3df8e46fd69ff4b3a2ad059eec355cee256d7996e"}], "sections": [], "signature": "", "attributes": {"method": "peer", "inventory": "User-visible source authentication method", "configuration": "pg_hba.conf"}, "description": ["Obtain the client's operating system user name from the operating system and check if it matches the requested database user name. This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication </h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/devel/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/devel/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}}}, "snapshot": {"facts": [{"label": "Method", "value": "peer"}, {"label": "Configuration", "value": "pg_hba.conf"}, {"label": "Inventory", "value": "User-visible source authentication method"}], "tables": [{"key": "method-options", "rows": [{"name": "map", "description": "Allows for mapping between system and database user names. 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This is only available for local connections. See Section 20.9 for details."], "manual_html": "<div class=\"sect1\" id=\"AUTH-PEER\">\n<div class=\"titlepage\">\n<div>\n<div>\n<h2 class=\"title\">20.9.\u00a0Peer Authentication </h2>\n</div>\n</div>\n</div>\n<p>The peer authentication method works by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections.</p>\n<p>The following configuration options are supported for <code class=\"literal\">peer</code>:</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"literal\">map</code></span></dt>\n<dd>\n<p>Allows for mapping between system and database user names. See <a class=\"xref\" href=\"/docs/18/auth-username-maps.html\" title=\"20.2.\u00a0User Name Maps\">Section\u00a020.2</a> for details.</p>\n</dd>\n</dl>\n</div>\n<p>Peer authentication is only available on operating systems providing the <code class=\"function\">getpeereid()</code> function, the <code class=\"symbol\">SO_PEERCRED</code> socket parameter, or similar mechanisms. Currently that includes <span class=\"systemitem\">Linux</span>, most flavors of <span class=\"systemitem\">BSD</span> including <span class=\"systemitem\">macOS</span>, and <span class=\"systemitem\">Solaris</span>.</p>\n</div>", "manual_path": "/docs/18/auth-peer.html", "comparison_data": {"method": "peer", "documented_option_names": ["map"]}, "comparison_hash": "45b9d1e2b3d7866cecb030ab10781f5e9a18a5ec1f244d9e811ee7a623c656ef"}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}