Comments on: Installing PostGres, PostGIS, pgRouting in Linux

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By: rupert

rupert — Mon, 06 Aug 2007 21:18:37 +0000

DEBIAN: Allowing postgres to listen to IP

rupert-debian:/etc/postgresql/8.2/main# pwd
/etc/postgresql/8.2/main

vi postgresql.conf

#listen_addresses = ‘localhost’ # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to ‘localhost’, ‘*’ = all
listen_addresses = ‘*’
# (change requires restart)
port = 5432 # (change requires restart)
max_connections = 100 # (change requires restart)

By: rupert

rupert — Tue, 31 Jul 2007 23:30:17 +0000

You can comment out this line in /etc/postgresql/8.1/main/postgresql.conf to enable postgres to listen to 192.168.1.211

listen_addresses = ‘*’ # what IP address(es) to listen on;

By: rupert

rupert — Sat, 07 Jul 2007 16:26:08 +0000

From PG Reference

http://www.postgresql.org/docs/8.2/static/auth-pg-hba-conf.html

By: rupert

rupert — Sat, 07 Jul 2007 16:23:07 +0000

When you want to connect to postgres remotely, make sure you allow it (5432) from your firewall (/etc/sysconfig/iptables). It appears that I can telnet 222.xxx.xxx.xxx 5432 where my postgres run, but pgadmin fails to connect. So I have to add a line in my /usr/local/pgsql/data/pg_hba.conf:

host all all 219.xxx.xxx.0 255.255.255.0 md5

By: rupert

rupert — Sun, 01 Jul 2007 10:41:34 +0000

If you receive the ff error in windows:
rupert@rupert-winxp /c/Program Files/PostgreSQL/8.2/data
$ psql -U postgres
Password for user postgres:
psql: FATAL: password authentication failed for user “postgres”

1. Make sure you have a local user “postgres”. The postgres service should run as the same “postgres” user.

2. You need to change the authentication type from md5 to trust. Then restart postgres from services.msc

# IPv4 local connections:
#host all all 127.0.0.1/32 md5
host all all 127.0.0.1/32 trust
# IPv6 local connections:
#host all all ::1/128 md5
#host all all 192.168.1.0 255.255.255.0 md5
host all all 192.168.1.0 255.255.255.0 trust

3. No need to specify the password on specifing -U postgres
rupert@rupert-winxp /c/Program Files/PostgreSQL/8.2/data
$ psql -U postgres
Welcome to psql 8.2.3, the PostgreSQL interactive terminal.

Type: \copyright for distribution terms
\h for help with SQL commands
\? for help with psql commands
\g or terminate with semicolon to execute query
\q to quit

Warning: Console code page (437) differs from Windows code page (936)
8-bit characters may not work correctly. See psql reference
page “Notes for Windows users” for details.