another can't connect

Started by BJ Freemanalmost 17 years ago9 messagesgeneral
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#1BJ Freeman
bjfree@free-man.net

PostgreSQL version 8.1.11 (With schemas)
I have read the recent emails and believe I have covered all the bases
from net stat
tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN 5091/postmaster

I do a
psql -h 127.0.0.1 -U ofbiz -d ofbiz
from a terminal on the server.

and get this after a time
psql: could not connect to server: Connection timed out
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5432?

Note this was working till about Fri.
then only thing I have been doing is adding to my IPtables.

this is my Iptables
hain INPUT (policy ACCEPT)
target prot opt source destination
LOG all -- anywhere anywhere LOG level
debug prefix `BANDWIDTH_IN:'
DROP icmp -- anywhere anywhere
REJECT tcp -- anywhere anywhere tcp
dpt:5868 reject-with icmp-port-unreachable
ACCEPT tcp -- anywhere anywhere tcp dpt:ndmp
ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW
RH-Firewall-1-INPUT all -- anywhere anywhere
REJECT all -- anywhere anywhere reject-with
icmp-port-unreachable

there is not filtering on output.

--
BJ Freeman
http://www.businessesnetwork.com/automation
http://bjfreeman.elance.com
http://www.linkedin.com/profile?viewProfile=&key=1237480&locale=en_US&trk=tab_pro
Systems Integrator.

#2Chris
dmagick@gmail.com
In reply to: BJ Freeman (#1)
Re: another can't connect

BJ Freeman wrote:

PostgreSQL version 8.1.11 (With schemas)
I have read the recent emails and believe I have covered all the bases
from net stat
tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN 5091/postmaster

I do a
psql -h 127.0.0.1 -U ofbiz -d ofbiz
from a terminal on the server.

and get this after a time
psql: could not connect to server: Connection timed out
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5432?

Note this was working till about Fri.
then only thing I have been doing is adding to my IPtables.

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

--
Postgresql & php tutorials
http://www.designmagick.com/

#3BJ Freeman
bjfree@free-man.net
In reply to: BJ Freeman (#1)
Re: another can't connect

tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN
is the only line for that port

Chris sent the following on 6/28/2009 7:33 PM:

BJ Freeman wrote:

PostgreSQL version 8.1.11 (With schemas)
I have read the recent emails and believe I have covered all the bases
from net stat
tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN 5091/postmaster

I do a
psql -h 127.0.0.1 -U ofbiz -d ofbiz
from a terminal on the server.

and get this after a time
psql: could not connect to server: Connection timed out
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5432?

Note this was working till about Fri.
then only thing I have been doing is adding to my IPtables.

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

--
BJ Freeman
http://www.businessesnetwork.com/automation
http://bjfreeman.elance.com
http://www.linkedin.com/profile?viewProfile=&key=1237480&locale=en_US&trk=tab_pro
Systems Integrator.

#4Chris
dmagick@gmail.com
In reply to: BJ Freeman (#3)
Re: another can't connect

Please don't top-post, it's so hard to follow discussions.

Chris sent the following on 6/28/2009 7:33 PM:

BJ Freeman wrote:

PostgreSQL version 8.1.11 (With schemas)
I have read the recent emails and believe I have covered all the bases
from net stat
tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN 5091/postmaster

I do a
psql -h 127.0.0.1 -U ofbiz -d ofbiz
from a terminal on the server.

and get this after a time
psql: could not connect to server: Connection timed out
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5432?

Note this was working till about Fri.
then only thing I have been doing is adding to my IPtables.

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN
is the only line for that port

established connections for the firewall, not just new connections.

see man iptables, --ctstate .

--
Postgresql & php tutorials
http://www.designmagick.com/

#5Andrej Ricnik-Bay
andrej.groups@gmail.com
In reply to: BJ Freeman (#3)
Re: another can't connect

2009/6/29 BJ Freeman <bjfree@free-man.net>:

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN
is the only line for that port

I think Chris meant "What about iptables rules for established connection?" ...

Cheers,
Andrej

--
Please don't top post, and don't use HTML e-Mail :} Make your quotes concise.

http://www.american.edu/econ/notes/htmlmail.htm

#6BJ Freeman
bjfree@free-man.net
In reply to: BJ Freeman (#1)
Re: another can't connect

sorry about the post did not do a reply all and sent a personal replay
yes in the chain I have
ACCEPT all -- anywhere anywhere state
RELATED,ESTABLISHED
it is the next to last rule.

Andrej sent the following on 6/28/2009 8:14 PM:

2009/6/29 BJ Freeman <bjfree@free-man.net>:

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN
is the only line for that port

I think Chris meant "What about iptables rules for established connection?" ...

Cheers,
Andrej

--
BJ Freeman
http://www.businessesnetwork.com/automation
http://bjfreeman.elance.com
http://www.linkedin.com/profile?viewProfile=&amp;key=1237480&amp;locale=en_US&amp;trk=tab_pro
Systems Integrator.

#7Tom Lane
tgl@sss.pgh.pa.us
In reply to: BJ Freeman (#6)
Re: another can't connect

BJ Freeman <bjfree@free-man.net> writes:

sorry about the post did not do a reply all and sent a personal replay
yes in the chain I have
ACCEPT all -- anywhere anywhere state
RELATED,ESTABLISHED
it is the next to last rule.

You sure that works? This notation for iptables isn't familiar to me,
but I'd have thought you have to specify the "state" module. The
comparable line in my iptables looks like

-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

Come to think of it, the "state NEW" test in your other line would
have to addressed to the state module as well.

BTW, usual practice is to put the established-connections rule near the
start of the chain, not the end, on the grounds that the majority of
packets the kernel will see will match this rule and so you want to test
it sooner rather than later.

regards, tom lane

#8BJ Freeman
bjfree@free-man.net
In reply to: BJ Freeman (#1)
Re: another can't connect

Thanks for you help
found that this not connect problem is server wide.
not just Isolated to postgresql.
so tracking down what i did to mess it up
:D

BJ Freeman sent the following on 6/28/2009 8:23 PM:

sorry about the post did not do a reply all and sent a personal replay
yes in the chain I have
ACCEPT all -- anywhere anywhere state
RELATED,ESTABLISHED
it is the next to last rule.

Andrej sent the following on 6/28/2009 8:14 PM:

2009/6/29 BJ Freeman <bjfree@free-man.net>:

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN
is the only line for that port

I think Chris meant "What about iptables rules for established connection?" ...

Cheers,
Andrej

--
BJ Freeman
http://www.businessesnetwork.com/automation
http://bjfreeman.elance.com
http://www.linkedin.com/profile?viewProfile=&amp;key=1237480&amp;locale=en_US&amp;trk=tab_pro
Systems Integrator.

#9BJ Freeman
bjfree@free-man.net
In reply to: BJ Freeman (#1)
Re: another can't connect--solved

added this to iptables
ACCEPT all -- localhost localhost

BJ Freeman sent the following on 6/28/2009 8:23 PM:

sorry about the post did not do a reply all and sent a personal replay
yes in the chain I have
ACCEPT all -- anywhere anywhere state
RELATED,ESTABLISHED
it is the next to last rule.

Andrej sent the following on 6/28/2009 8:14 PM:

2009/6/29 BJ Freeman <bjfree@free-man.net>:

ACCEPT tcp -- localhost localhost tcp
dpt:postgres state NEW

What about established connections?

tcp 0 0 127.0.0.1:5432 0.0.0.0:*
LISTEN
is the only line for that port

I think Chris meant "What about iptables rules for established connection?" ...

Cheers,
Andrej

--
BJ Freeman
http://www.businessesnetwork.com/automation
http://bjfreeman.elance.com
http://www.linkedin.com/profile?viewProfile=&amp;key=1237480&amp;locale=en_US&amp;trk=tab_pro
Systems Integrator.