BUG #1786: error in establishing connection

The following bug has been logged online:

Bug reference:      1786
Logged by:          mohammed talat el shambakey
Email address:      shambakey1@yahoo.com
PostgreSQL version: 8.0.3
Operating system:   fedora project
Description:        error in establishing connection
Details:

hi'
i have two problems:-
the first problem:-
when i try to execute the command:-

[shambakey1@shambakey1 shambakey1]$ postmaster -D /usr/local/pgsql/data

it gives me the following error:-

OG:  could not translate host name "localhost", service "5432" to address:
Temporary failure in name resolution
WARNING:  could not create listen socket for "localhost"
LOG:  could not resolve "localhost": Temporary failure in name resolution
LOG:  disabling statistics collector for lack of working socket
LOG:  database system was shut down at 2005-07-26 14:16:55 EEST
LOG:  checkpoint record is at 0/A32BD4
LOG:  redo record is at 0/A32BD4; undo record is at 0/0; shutdown TRUE
LOG:  next transaction ID: 544; next OID: 17230
LOG:  database system is ready

i tried to change th PGHOST for the the user named "shambakey1"- knowing
that "shambakey1" has write access to the /usr/local/pgsql/data

the second problem:-
when i try to execute the command:-

[shambakey1@shambakey1 shambakey1]$ postmaster -D /usr/local/pgsql/data -i

it gives me the following error:-

LOG:  could not create IPv6 socket: Address family not supported by
protocol
LOG:  could not resolve "localhost": Temporary failure in name resolution
LOG:  disabling statistics collector for lack of working socket
LOG:  database system was shut down at 2005-07-26 14:20:01 EEST
LOG:  checkpoint record is at 0/A32C4C
LOG:  redo record is at 0/A32C4C; undo record is at 0/0; shutdown TRUE
LOG:  next transaction ID: 544; next OID: 17230
LOG:  database system is ready

i appreciate ur help
thanx in advance