Thread: Connecting to postgres from a romote machhine

Hi, I've just installed postgres on the Linux server. It is supposed
to start automatically which I think it does since I can run an sql
stmt right away.  When I'm trying to connect from a remote machine I
get a message that the remote machine IP address is not specified  in
pg_hba.conf, that there is no record of that machine there.
ph_hba.conf is set up correctly, because when I run the following:
postmaster -i -D /var/lib/pgsql/data
from the command line, I'm able to easily connect to postgre from the
remote machine.
What's the deal here?  It's probably how postgres is started.

here is my startup script:

#! /bin/sh
# postgresql    This is the init script for starting up the PostgreSQL
#        server
#
# chkconfig: - 85 15
# description: Starts and stops the PostgreSQL backend daemon that
handles \
#           all database requests.
# processname: postmaster
# pidfile: /var/run/postmaster.pid

# Version 6.5.3-2 Lamar Owen
# Added code to determine if PGDATA exists, whether it is current
version
#     or not, and initdb if no PGDATA (initdb will not overwrite a
database).

# Version 7.0 Lamar Owen
# Added logging code
# Changed PGDATA.
#

# Version 7.0.2 Trond Eivind Glomsrød <teg@redhat.com>
# use functions, add conditional restart

# Version 7.0.3 Lamar Owen <lamar@postgresql.org>
# Check for the existence of functions before blindly using them
# in particular -- check for success () and failure () before using.
# More Cross-distribution support -- PGVERSION variable, and docdir
checks.

# Version 7.1 Release Candidate Lamar Owen <lamar@postgresql.org>
# initdb parameters have changed.

# Version 7.1.2 Trond Eivind Glomsrød <teg@redhat.com>
# Specify shell for su
# Handle stop better - kill unwanted output, make it wait until the
database is ready
# Handle locales slightly differently - always using "C" isn't a valid
option
# Kill output from database initialization
# Mark messages for translation

# Version 7.1.2-2.PGDG Lamar Owen <lamar.owen@wgcr.org>
# sync up.
# Karl's fixes for some quoting issues.

# Version 7.2b2 Lamar Owen <lamar.owen@wgcr.org>
# version change.

# Version 7.2 final.  Lamar Owen <lamar.owen@wgcr.org>
# reload from Peter E.
# Eliminate the pidof postmaster test in stop -- we're using pg_ctl so
we don't need pidof.
# Tested the $? return for the stop script -- it does in fact
propagate.
# TODO: multiple postmasters.

# PGVERSION is:
PGVERSION=7.2

# Source function library.
INITD=/etc/rc.d/init.d
. $INITD/functions

# Get function listing for cross-distribution logic.
TYPESET=`typeset -f|grep "declare"`

# Get config.
. /etc/sysconfig/network

# Check that networking is up.
# Pretty much need it for postmaster.
[ "${NETWORKING}" = "no" ] && exit 0

[ -f /usr/bin/postmaster ] || exit 0


start(){
    PSQL_START=$"Starting postgresql service: "

    # Check for older PGDATA location.
    if [ -f /var/lib/pgsql/PG_VERSION ] && [ -d
/var/lib/pgsql/base/template1 ]
    then
        export PGDATA=/var/lib/pgsql
    else
        export PGDATA=/var/lib/pgsql/data
    fi

    # Check for the PGDATA structure
    if [ -f $PGDATA/PG_VERSION ] && [ -d $PGDATA/base ]
    then
    # Check version of existing PGDATA

        if [ `cat $PGDATA/PG_VERSION` != '7.2' ]
        then
            SYSDOCDIR="(Your System's documentation directory)"
            if [ -d /usr/doc/postgresql-$PGVERSION ]
            then
                SYSDOCDIR=/usr/doc
            fi
            if [ -d /usr/share/doc/postgresql-$PGVERSION ]
            then
                SYSDOCDIR=/usr/share/doc
            fi
            if [ -d /usr/doc/packages/postgresql-$PGVERSION ]
            then
                SYSDOCDIR=/usr/doc/packages
            fi
            if [ -d /usr/share/doc/packages/postgresql-$PGVERSION ]
            then
                SYSDOCDIR=/usr/share/doc/packages
            fi
            echo
            echo -e $"An old version of the database format was found.\nYou
need to upgrade the data format before using PostgreSQL.\nSee
$SYSDOCDIR/postgresql-$PGVERSION/README.rpm-dist for more
information."
            exit 1
#                       This doesn't seem to do anything useful...
#        else
#            if echo "$TYPESET"|grep "declare -f success ()" >/dev/null
#            then
#                success "$PSQL_CHECK"
#            else
#                echo "  [ OK ]"
#            fi
#            echo
        fi

    # No existing PGDATA! Initdb it.

    else
            echo -n $"Initializing database: "
                if [ ! -d $PGDATA ]
        then
            mkdir -p $PGDATA
            chown postgres.postgres $PGDATA
        fi
        # Make sure the locale from the initdb is preserved for later
startups...
        [ -f /etc/sysconfig/i18n ] && cp /etc/sysconfig/i18n
$PGDATA/../initdb.i18n
        # Just in case no locale was set, use en_US
        [ ! -f /etc/sysconfig/i18n ] && echo "LANG=en_US" >
$PGDATA/../initdb.i18n
        # Is expanded this early to be used in the command su runs
        echo "export LANG LC_ALL LC_CTYPE LC_COLLATE LC_NUMERIC LC_CTYPE
LC_TIME" >> $PGDATA/../initdb.i18n
        # Initialize the database
        su -l postgres -s /bin/sh -c "/usr/bin/initdb
--pgdata=/var/lib/pgsql/data > /dev/null 2>&1" < /dev/null
        [ -f $PGDATA/PG_VERSION ] && echo_success
        [ ! -f $PGDATA/PG_VERSION ] && echo_failure
        echo
     fi

    # Check for postmaster already running...
    pid=`pidof -s postmaster`
    if [ $pid ]
    then
        echo $"Postmaster already running."
    else
        #all systems go -- remove any stale lock files
        rm -f /tmp/.s.PGSQL.* > /dev/null
        echo -n "$PSQL_START"
        su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl  -D $PGDATA -o '-i' -p
/usr/bin/postmaster start  > /dev/null 2>&1" < /dev/null
         sleep 1
         pid=`pidof -s postmaster`
         if [ $pid ]
        then
            if echo "$TYPESET"|grep "declare -f success ()" >/dev/null
            then
                success "$PSQL_START"
            else
                echo "  [ OK ]"
            fi
            touch /var/lock/subsys/postgresql
            echo $pid > /var/run/postmaster.pid
            echo
        else
            if echo "$TYPESET"|grep "declare -f failure ()" >/dev/null
            then
                failure "$PSQL_START"
            else
                echo " [ FAILED ]"
            fi
            echo
        fi
    fi
}

stop(){
    echo -n $"Stopping postgresql service: "
    # Check for older PGDATA location.
    if [ -f /var/lib/pgsql/PG_VERSION ] && [ -d
/var/lib/pgsql/base/template1 ]
    then
        export PGDATA=/var/lib/pgsql
    else
        export PGDATA=/var/lib/pgsql/data
    fi
    su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl stop -D $PGDATA -s -m
fast" > /dev/null 2>&1
        ret=$?
        if [ $ret -eq 0 ]; then
        echo_success
        else
            echo_failure
        fi
    echo
    rm -f /var/run/postmaster.pid
    rm -f /var/lock/subsys/postgresql
}

restart(){
    stop
    start
}

condrestart(){
    [ -e /var/lock/subsys/postgresql ] && restart || :
}

reload(){
    su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl reload -D $PGDATA
-s" > /dev/null 2>&1
}

# This script is slightly unusual in that the name of the daemon
(postmaster)
# is not the same as the name of the subsystem (postgresql)

# See how we were called.
case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  status)
    status postmaster
    ;;
  restart)
    restart
    ;;
  condrestart)
    condrestart
    ;;
  reload|force-reload)
    reload
    ;;
  *)
    echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|force-reload}"
    exit 1
esac

exit 0


Please, let me know what should I do.
N.K.

On Thursday 11 September 2003 21:42, N.K. wrote:
> Hi, I've just installed postgres on the Linux server. It is supposed
> to start automatically which I think it does since I can run an sql
> stmt right away.  When I'm trying to connect from a remote machine I
> get a message that the remote machine IP address is not specified  in
> pg_hba.conf, that there is no record of that machine there.
> ph_hba.conf is set up correctly, because when I run the following:
> postmaster -i -D /var/lib/pgsql/data
> from the command line, I'm able to easily connect to postgre from the
> remote machine.
> What's the deal here?  It's probably how postgres is started.
>
> here is my startup script:

Assuming this is the startup script that ships with PG, you probably want to
look in your postgresql.conf file and check the tcp_ip setting is on.

--
  Richard Huxton
  Archonet Ltd

Thank you so much for your help.
It worked.
Thanks again.
N.K.


nadiak@parkerglobal.com (N.K.) wrote in message news:<2d4502eb.0309111242.46dbddf4@posting.google.com>...
> Hi, I've just installed postgres on the Linux server. It is supposed
> to start automatically which I think it does since I can run an sql
> stmt right away.  When I'm trying to connect from a remote machine I
> get a message that the remote machine IP address is not specified  in
> pg_hba.conf, that there is no record of that machine there.
> ph_hba.conf is set up correctly, because when I run the following:
> postmaster -i -D /var/lib/pgsql/data
> from the command line, I'm able to easily connect to postgre from the
> remote machine.
> What's the deal here?  It's probably how postgres is started.
>
> here is my startup script:
>
> #! /bin/sh
> # postgresql    This is the init script for starting up the PostgreSQL
> #        server
> #
> # chkconfig: - 85 15
> # description: Starts and stops the PostgreSQL backend daemon that
> handles \
> #           all database requests.
> # processname: postmaster
> # pidfile: /var/run/postmaster.pid
>
> # Version 6.5.3-2 Lamar Owen
> # Added code to determine if PGDATA exists, whether it is current
> version
> #     or not, and initdb if no PGDATA (initdb will not overwrite a
> database).
>
> # Version 7.0 Lamar Owen
> # Added logging code
> # Changed PGDATA.
> #
>
> # Version 7.0.2 Trond Eivind Glomsrød <teg@redhat.com>
> # use functions, add conditional restart
>
> # Version 7.0.3 Lamar Owen <lamar@postgresql.org>
> # Check for the existence of functions before blindly using them
> # in particular -- check for success () and failure () before using.
> # More Cross-distribution support -- PGVERSION variable, and docdir
> checks.
>
> # Version 7.1 Release Candidate Lamar Owen <lamar@postgresql.org>
> # initdb parameters have changed.
>
> # Version 7.1.2 Trond Eivind Glomsrød <teg@redhat.com>
> # Specify shell for su
> # Handle stop better - kill unwanted output, make it wait until the
> database is ready
> # Handle locales slightly differently - always using "C" isn't a valid
> option
> # Kill output from database initialization
> # Mark messages for translation
>
> # Version 7.1.2-2.PGDG Lamar Owen <lamar.owen@wgcr.org>
> # sync up.
> # Karl's fixes for some quoting issues.
>
> # Version 7.2b2 Lamar Owen <lamar.owen@wgcr.org>
> # version change.
>
> # Version 7.2 final.  Lamar Owen <lamar.owen@wgcr.org>
> # reload from Peter E.
> # Eliminate the pidof postmaster test in stop -- we're using pg_ctl so
> we don't need pidof.
> # Tested the $? return for the stop script -- it does in fact
> propagate.
> # TODO: multiple postmasters.
>
> # PGVERSION is:
> PGVERSION=7.2
>
> # Source function library.
> INITD=/etc/rc.d/init.d
> . $INITD/functions
>
> # Get function listing for cross-distribution logic.
> TYPESET=`typeset -f|grep "declare"`
>
> # Get config.
> . /etc/sysconfig/network
>
> # Check that networking is up.
> # Pretty much need it for postmaster.
> [ "${NETWORKING}" = "no" ] && exit 0
>
> [ -f /usr/bin/postmaster ] || exit 0
>
>
> start(){
>     PSQL_START=$"Starting postgresql service: "
>
>     # Check for older PGDATA location.
>     if [ -f /var/lib/pgsql/PG_VERSION ] && [ -d
> /var/lib/pgsql/base/template1 ]
>     then
>         export PGDATA=/var/lib/pgsql
>     else
>         export PGDATA=/var/lib/pgsql/data
>     fi
>
>     # Check for the PGDATA structure
>     if [ -f $PGDATA/PG_VERSION ] && [ -d $PGDATA/base ]
>     then
>     # Check version of existing PGDATA
>
>         if [ `cat $PGDATA/PG_VERSION` != '7.2' ]
>         then
>             SYSDOCDIR="(Your System's documentation directory)"
>             if [ -d /usr/doc/postgresql-$PGVERSION ]
>             then
>                 SYSDOCDIR=/usr/doc
>             fi
>             if [ -d /usr/share/doc/postgresql-$PGVERSION ]
>             then
>                 SYSDOCDIR=/usr/share/doc
>             fi
>             if [ -d /usr/doc/packages/postgresql-$PGVERSION ]
>             then
>                 SYSDOCDIR=/usr/doc/packages
>             fi
>             if [ -d /usr/share/doc/packages/postgresql-$PGVERSION ]
>             then
>                 SYSDOCDIR=/usr/share/doc/packages
>             fi
>             echo
>             echo -e $"An old version of the database format was found.\nYou
> need to upgrade the data format before using PostgreSQL.\nSee
> $SYSDOCDIR/postgresql-$PGVERSION/README.rpm-dist for more
> information."
>             exit 1
> #                       This doesn't seem to do anything useful...
> #        else
> #            if echo "$TYPESET"|grep "declare -f success ()" >/dev/null
> #            then
> #                success "$PSQL_CHECK"
> #            else
> #                echo "  [ OK ]"
> #            fi
> #            echo
>         fi
>
>     # No existing PGDATA! Initdb it.
>
>     else
>             echo -n $"Initializing database: "
>                 if [ ! -d $PGDATA ]
>         then
>             mkdir -p $PGDATA
>             chown postgres.postgres $PGDATA
>         fi
>         # Make sure the locale from the initdb is preserved for later
> startups...
>         [ -f /etc/sysconfig/i18n ] && cp /etc/sysconfig/i18n
> $PGDATA/../initdb.i18n
>         # Just in case no locale was set, use en_US
>         [ ! -f /etc/sysconfig/i18n ] && echo "LANG=en_US" >
> $PGDATA/../initdb.i18n
>         # Is expanded this early to be used in the command su runs
>         echo "export LANG LC_ALL LC_CTYPE LC_COLLATE LC_NUMERIC LC_CTYPE
> LC_TIME" >> $PGDATA/../initdb.i18n
>         # Initialize the database
>         su -l postgres -s /bin/sh -c "/usr/bin/initdb
> --pgdata=/var/lib/pgsql/data > /dev/null 2>&1" < /dev/null
>         [ -f $PGDATA/PG_VERSION ] && echo_success
>         [ ! -f $PGDATA/PG_VERSION ] && echo_failure
>         echo
>      fi
>
>     # Check for postmaster already running...
>     pid=`pidof -s postmaster`
>     if [ $pid ]
>     then
>         echo $"Postmaster already running."
>     else
>         #all systems go -- remove any stale lock files
>         rm -f /tmp/.s.PGSQL.* > /dev/null
>         echo -n "$PSQL_START"
>         su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl  -D $PGDATA -o '-i' -p
> /usr/bin/postmaster start  > /dev/null 2>&1" < /dev/null
>          sleep 1
>          pid=`pidof -s postmaster`
>          if [ $pid ]
>         then
>             if echo "$TYPESET"|grep "declare -f success ()" >/dev/null
>             then
>                 success "$PSQL_START"
>             else
>                 echo "  [ OK ]"
>             fi
>             touch /var/lock/subsys/postgresql
>             echo $pid > /var/run/postmaster.pid
>             echo
>         else
>             if echo "$TYPESET"|grep "declare -f failure ()" >/dev/null
>             then
>                 failure "$PSQL_START"
>             else
>                 echo " [ FAILED ]"
>             fi
>             echo
>         fi
>     fi
> }
>
> stop(){
>     echo -n $"Stopping postgresql service: "
>     # Check for older PGDATA location.
>     if [ -f /var/lib/pgsql/PG_VERSION ] && [ -d
> /var/lib/pgsql/base/template1 ]
>     then
>         export PGDATA=/var/lib/pgsql
>     else
>         export PGDATA=/var/lib/pgsql/data
>     fi
>     su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl stop -D $PGDATA -s -m
> fast" > /dev/null 2>&1
>         ret=$?
>         if [ $ret -eq 0 ]; then
>         echo_success
>         else
>             echo_failure
>         fi
>     echo
>     rm -f /var/run/postmaster.pid
>     rm -f /var/lock/subsys/postgresql
> }
>
> restart(){
>     stop
>     start
> }
>
> condrestart(){
>     [ -e /var/lock/subsys/postgresql ] && restart || :
> }
>
> reload(){
>     su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl reload -D $PGDATA
> -s" > /dev/null 2>&1
> }
>
> # This script is slightly unusual in that the name of the daemon
> (postmaster)
> # is not the same as the name of the subsystem (postgresql)
>
> # See how we were called.
> case "$1" in
>   start)
>     start
>     ;;
>   stop)
>     stop
>     ;;
>   status)
>     status postmaster
>     ;;
>   restart)
>     restart
>     ;;
>   condrestart)
>     condrestart
>     ;;
>   reload|force-reload)
>     reload
>     ;;
>   *)
>     echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|force-reload}"
>     exit 1
> esac
>
> exit 0
>
>
> Please, let me know what should I do.
> N.K.