hi, proficients

I encounted a weird problem when i intend to install phpBB2 on my suse 8.2 pro.I selected postgresql as my db . the service is opened and i can operate the db.
but, when i install phpbb2, the critical error occured. which is the error message below:

Warning: pg_connect() [function.pg-connect]: Unable to connect to PostgreSQL server: could not connect to server: Connection refused Is the server running on host lizard and accepting TCP/IP connections on port 5432? . in /srv/www/htdocs/bbs/phpbb2/db/postgres7.php on line 79
phpBB : Critical Error

Could not connect to the database

the port 5432 is allowed by firewall and also allowed local access by hosts.allow.

what is the matter ?

thanks a lot!

Check postgresql.conf,
see if
tcpip_socket = true
is set.

Check pg_hba.conf,
make sure the host you're trying to connect
from is listed (or allowed by some generic
pattern :}) ...

Cheers,
Tink

so ,where i should put the postgresql.conf in ? /etc or /usr/share/pgsql ? and , i never found pg_hba.conf, maybe suse is different between other distro.
would you like give me more details?
thanks in advance

Ummm ... try
locate <filename>
with both of them.

I doubt pg would run without them.

Cheers,
Tink

i found postgresql.conf and cp it to /etc , set
tcpip_socket = true
port = 5432
show_source_port = true

no other changing.
this is the postgresql.conf contant below:
---------------------------------------------------------------
#
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form:
#
# name = value
#
# (The '=' is optional.) White space may be used. Comments are introduced
# with '#' anywhere on a line. The complete list of option names and
# allowed values can be found in the PostgreSQL documentation. The
# commented-out settings shown in this file represent the default values.
#
# Any option can also be given as a command line switch to the
# postmaster, e.g. 'postmaster -c log_connections=on'. Some options
# can be changed at run-time with the 'SET' SQL command.
#
# This file is read on postmaster startup and when the postmaster
# receives a SIGHUP. If you edit the file on a running system, you have
# to SIGHUP the postmaster for the changes to take effect, or use
# "pg_ctl reload".


#========================================================================


#
# Connection Parameters
#
tcpip_socket = true
#ssl = false

#max_connections = 32
#superuser_reserved_connections = 2

port = 5432
#hostname_lookup = false
show_source_port = true

#unix_socket_directory = ''
#unix_socket_group = ''
#unix_socket_permissions = 0777 # octal

#virtual_host = ''

#krb_server_keyfile = ''


#
# Shared Memory Size
#
#shared_buffers = 64 # min max_connections*2 or 16, 8KB each
#max_fsm_relations = 1000 # min 10, fsm is free space map, ~40 bytes
#max_fsm_pages = 10000 # min 1000, fsm is free space map, ~6 bytes
#max_locks_per_transaction = 64 # min 10
#wal_buffers = 8 # min 4, typically 8KB each

#
# Non-shared Memory Sizes
#
#sort_mem = 1024 # min 64, size in KB
#vacuum_mem = 8192 # min 1024, size in KB


#
# Write-ahead log (WAL)
#
#checkpoint_segments = 3 # in logfile segments, min 1, 16MB each
#checkpoint_timeout = 300 # range 30-3600, in seconds
#
#commit_delay = 0 # range 0-100000, in microseconds
#commit_siblings = 5 # range 1-1000
#
#fsync = true
#wal_sync_method = fsync # the default varies across platforms:
# # fsync, fdatasync, open_sync, or open_datasync
#wal_debug = 0 # range 0-16


#
# Optimizer Parameters
#
#enable_seqscan = true
#enable_indexscan = true
#enable_tidscan = true
#enable_sort = true
#enable_nestloop = true
#enable_mergejoin = true
#enable_hashjoin = true

#effective_cache_size = 1000 # typically 8KB each
#random_page_cost = 4 # units are one sequential page fetch cost
#cpu_tuple_cost = 0.01 # (same)
#cpu_index_tuple_cost = 0.001 # (same)
#cpu_operator_cost = 0.0025 # (same)

#default_statistics_target = 10 # range 1-1000

#
# GEQO Optimizer Parameters
#
#geqo = true
#geqo_selection_bias = 2.0 # range 1.5-2.0
#geqo_threshold = 11
#geqo_pool_size = 0 # default based on tables in statement,
# range 128-1024
#geqo_effort = 1
#geqo_generations = 0
#geqo_random_seed = -1 # auto-compute seed


#
# Message display
#
#server_min_messages = notice # Values, in order of decreasing detail:
# debug5, debug4, debug3, debug2, debug1,
# info, notice, warning, error, log, fatal,
# panic
#client_min_messages = notice # Values, in order of decreasing detail:
# debug5, debug4, debug3, debug2, debug1,
# log, info, notice, warning, error
#silent_mode = false

#log_connections = false
#log_pid = false
#log_statement = false
#log_duration = false
#log_timestamp = false

#log_min_error_statement = error # Values in order of increasing severity:
# debug5, debug4, debug3, debug2, debug1,
# info, notice, warning, error, panic(off)

#debug_print_parse = false
#debug_print_rewritten = false
#debug_print_plan = false
#debug_pretty_print = false

#explain_pretty_print = true

# requires USE_ASSERT_CHECKING
#debug_assertions = true


#
# Syslog
#
#syslog = 0 # range 0-2
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'


#
# Statistics
#
#show_parser_stats = false
#show_planner_stats = false
#show_executor_stats = false
#show_statement_stats = false

# requires BTREE_BUILD_STATS
#show_btree_build_stats = false


#
# Access statistics collection
#
#stats_start_collector = true
#stats_reset_on_server_start = true
#stats_command_string = false
#stats_row_level = false
#stats_block_level = false


#
# Lock Tracing
#
#trace_notify = false

# requires LOCK_DEBUG
#trace_locks = false
#trace_userlocks = false
#trace_lwlocks = false
#debug_deadlocks = false
#trace_lock_oidmin = 16384
#trace_lock_table = 0


#
# Misc
#
#autocommit = true
#dynamic_library_path = '$libdir'
#search_path = '$user,public'
#datestyle = 'iso, us'
#timezone = unknown # actually, defaults to TZ environment setting
#australian_timezones = false
#client_encoding = sql_ascii # actually, defaults to database encoding
#authentication_timeout = 60 # 1-600, in seconds
#deadlock_timeout = 1000 # in milliseconds
#default_transaction_isolation = 'read committed'
#max_expr_depth = 10000 # min 10
#max_files_per_process = 1000 # min 25
password_encryption = true
#sql_inheritance = true
#transform_null_equals = false
#statement_timeout = 0 # 0 is disabled, in milliseconds
#db_user_namespace = false

------------------------------------------------------------
and i restart suse, reinstall phpbb2, the same error message prompt to me. what shall i do?

I have no clue what SuSE has done to
their PostgreSQL rpm(s) ... I'd suggest
uninstalling it, and grab the source-tarball,
and make a "do-it-yourself" installation.

http://www.postgresql.org

Cheers,
Tink

You need additional rpms below:
postgresql-server
postgresql-test


Have fun :-)

That is the correct setup for your postgresql.conf file. You can locate the pg_hba.conf by

find \ -name pg_hba.conf

Try going into that file and scroll to the bottom. Setup your network connection to be trusted for now until you get this working like so:

local all all trust
host all all 127.0.0.1 255.255.255.255 trust
host all all xxx.xxx.xxx.0 255.255.255.0 trust

where xxx.xxx.xxx.0 is your network.

Then you must restart postgres with the "-i" flag to get it to accept incomming TCP\IP. You can do this as such:

pg_ctl -D $PGDATA -o "-i" -l $PGLOG -p $PGPORT

Of course those variables are specific to your system.

In summary:

postgresql.conf needs the tcpip_socket = YES
pg_hba.conf needs to allow the network to connect
postgres must be started to allow TCPIP (-i option)

I'm having the same problem, still doesn't work

Is there any way to test if postmaster is actually listening on that port?

How are yah? :)

Everything identical?
=>
Mail him, he didn't come back to
ask more questions ;)


Some things different?
=>
Post them.

Cheers,
Tink

you can check whether postgresql server is listening on the port 5432 using nmap command:
"nmap localhost -p 5432"

hope that helps,
- Ratnadeep