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(at)yahoo(dot)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(at)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(at)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