PostgreSQL is required as Database for OpenNMS. While I was... OpenNMS, I need to have a tool in order to...

Transcription

How to install and maintain PostgreSQL with phpPgAdmin
Written by CiscoNET
Wednesday, 06 May 2009 12:57 - Last Updated Wednesday, 06 May 2009 13:04
PostgreSQL is required as Database for OpenNMS. While I was playing with
OpenNMS, I need to have a tool in order to empty all testing data and information.
Unfortuately, OpenNMS admin console doesn't provide a function to handle SQL
data. I am not a person who likes CLI(commands line interface) much. So, I
researched GUI based admin tools for PostgresSQL. Finally, I found a
phpPgAdmin on YaST(management tools by OpenSuSE Linux).
Let's see few tips to get it works!
1. Installation of PostgreSQL
- Well, one of reason that I like OpenSuSE is that it provides very convenient
admin tools, called YaST(YaST2). You can install any softwares that are from
Repository easily. Actually, not much you need to aftoer install PostgreSQL by
YaST.
To start
Server#service postgresql start
To stop
Server#service postgresql stop
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2. Installation of phpPgAdmin
- Just install by YaST and change few things.
a. go to /srv/www/htdocs/phpPgAdmin/conf and copy
config.inc.php-dist to config.inc.php. You don't need to change
anything inside of the file. Just name change.
Server:/srv/www/htdocs/phpPgAdmin/conf #cp
config.inc.php-dist config.inc.php
b. Change one more file, /var/lib/pgsql/data/pg_hba.conf
# TYPE DATABASE
USER
CIDR-ADDRESS
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METHOD
# "local" is for Unix domain socket
connections only
local
all
all
md5
# IPv4 local connections:
host all
all
127.0.0.1/32
ust
tr
host all
all
::1/128
md5
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c. Now, you can browse phpPgAdmin page
thru
http://www.cisconet.com/phpPgAdmin
d. Next, you might see login failed
message, then See below.
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3. Errors & trobleshooting
a. If you got "login disallowed .....&
quot; Basically, phpPgAdmin doesn't
create password for postgres account.
For security reason, you better to have
password on it. How? see below.
- Go into your pgdata directory and
Open pg_hba.conf.
- The lines that say “md5” near the
bottom, change to “trust”
- Restart your database instance.
- Login and set your password.
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psql -d template1 -U postgres (tem
plate1 is service database)
alter user postgres with
password ' xxxxxx';
(xxxxxx is a password)
postgres@server> psql -d
template1 -U postgres
postgres=# alter user
postgres with password
'speeder';
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ALTER ROLE
postgres=# q or ctl+'z' (to
exit)
- exit out from psql.
- Change the lines back to
md5 in your pg_hba.conf file
# TYPE DATABASE
USER
CIDR-ADDRESS
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METHOD
# "local" is for
Unix domain socket
connections only local all
all
md5
# IPv4 local connections: ho
st all
all
127.0.0.1/32
trust
# IPv6 local connections: ho
st all
all
::1/128
md5
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Restart PostgreSQL again.
Try logging in and see if
your change worked!
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b. If error message is
below
psql: FATAL: database
"root" does not
exist
Server#su - postgres
postgres@server> psql -d
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template1 -U postgres
postgres=#
c. if error message is
below
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VPN:/var/lib/pgsql/data #
service opennms star
t
Starting OpenNMS:
org.postgresql.util.PSQLEx
ception: FATAL: password
authentication failed for
user "postgres"
OpenNMS runs better if
you start up the database
first.
failed
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# TYPE DATABASE
USER
CIDR-ADDRESS
METHOD
# "local" is for
Unix domain socket
connections only
local all
all
md5
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host all
all
127.0.0.1/32
md5 ---> trust
host all
all
::1/128
md5
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4. Now what?
Access phpPgAdmin and
go to table mode and
delete or analyze burstable
log and data.
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PostgreSQL is required as Database for OpenNMS. While I was... OpenNMS, I need to have a tool in order to...

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