replication connections.
- The default is peer for Unix-domain socket
- connections on operating systems that support it, otherwise
- md5, and md5 for TCP/IP
- connections.
-
-
- When running initdb on a platform that does not
- support peer authentication, either a password must
- be provided (see and other options) or a different
- authentication method must be chosen, otherwise
- initdb will error.
-
-
Do not use trust unless you trust all local users on your
- system.
+ system. trust is the default for ease of installation.
- The default client authentication setup is such that users can connect over
- the Unix-domain socket to the same database user name as their operating
- system user names (on operating systems that support this, which are most
- modern Unix-like systems, but not Windows) and otherwise with a password.
- To assign a password to the initial database superuser, use one of
+ However, while the directory contents are secure, the default
+ client authentication setup allows any local user to connect to the
+ database and even become the database superuser. If you do not
+ trust other local users, we recommend you use one of
initdb's ,
- or options.
+ or options to assign a password to the
+ database superuser.
of the superuser
- This configuration is secure and sufficient to get started. Later, see
- for more information about setting
- up client authentication.
+ Also, specify or
+ so that the default trust authentication
+ mode is not used; or modify the generated pg_hba.conf
+ file after running initdb, but
+ before you start the server for the first time. (Other
+ reasonable approaches include using peer authentication
+ or file system permissions to restrict connections. See
+ linkend="client-authentication"/> for more information.)
+
+ At this point, if you did not use the initdb -A
+ option, you might want to modify pg_hba.conf to control
+ local access to the server before you start it. The default is to
+ trust all local users.
+
+
+
The previous initdb step should have told you how to
"# allows any local user to connect as any PostgreSQL user, including\n" \
"# the database superuser. If you do not trust all your local users,\n" \
"# use another authentication method.\n"
+static bool authwarning = false;
/*
* Centralized knowledge of switches to pass to backend
printf(_("\nReport bugs to
.\n"));
}
+static void
+check_authmethod_unspecified(const char **authmethod)
+{
+ if (*authmethod == NULL)
+ {
+ authwarning = true;
+ *authmethod = "trust";
+ }
+}
+
static void
check_authmethod_valid(const char *authmethod, const char *const *valid_methods, const char *conntype)
{
exit(1);
}
- if (authmethodlocal == NULL)
- {
-#ifdef HAVE_AUTH_PEER
- authmethodlocal = "peer";
-#else
- authmethodlocal = "md5";
-#endif
- }
- if (authmethodhost == NULL)
- authmethodhost = "md5";
+ check_authmethod_unspecified(&authmethodlocal);
+ check_authmethod_unspecified(&authmethodhost);
check_authmethod_valid(authmethodlocal, auth_methods_local, "local");
check_authmethod_valid(authmethodhost, auth_methods_host, "host");
else
printf(_("\nSync to disk skipped.\nThe data directory might become corrupt if the operating system crashes.\n"));
+ if (authwarning)
+ {
+ printf("\n");
+ pg_log_warning("enabling \"trust\" authentication for local connections");
+ fprintf(stderr, _("You can change this by editing pg_hba.conf or using the option -A, or\n"
+ "--auth-local and --auth-host, the next time you run initdb.\n"));
+ }
+
/*
* Build up a shell command to tell the user how to start the server
*/
extern int getpeereid(int sock, uid_t *uid, gid_t *gid);
#endif
-/* must match src/port/getpeereid.c */
-#if defined(HAVE_GETPEEREID) || defined(SO_PEERCRED) || defined(LOCAL_PEERCRED) || defined(HAVE_GETPEERUCRED)
-#define HAVE_AUTH_PEER 1
-#endif
-
#ifndef HAVE_ISINF
extern int isinf(double x);
#else
/* initdb */
header(_("initializing database system"));
snprintf(buf, sizeof(buf),
- "\"%s%sinitdb\" -D \"%s/data\" -A trust --no-clean --no-sync%s%s > \"%s/log/initdb.log\" 2>&1",
+ "\"%s%sinitdb\" -D \"%s/data\" --no-clean --no-sync%s%s > \"%s/log/initdb.log\" 2>&1",
bindir ? bindir : "",
bindir ? "/" : "",
temp_instance,