I've just installed Centos 4 on an Acer G310 server - everything's gone well except I'm not able to SMTP connect to my upstream mail server (I've installed postfix + MailScanner) - I managed to find sort out the dovecot side of things but SMTP remains quite silent - the maillog shows an attempted connect but then a timeout:
May 9 13:08:45 woking postfix/smtp[7895]: deliver_request_final: send: "connect to mailhost.zen.co.uk[212.23.3.98]: Connection timed out" -1
If I connect manually (telnet mailhost.zen.co.uk 25) nothing happens - no response is shown and I presume if I left things for long enough I'd see a timeout message? Here's the output from netstat -pant:
Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:32769 0.0.0.0:* LISTEN 2048/rpc.statd tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 2028/portmap tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 2242/vsftpd tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2181/cupsd tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 5201/master tcp 0 1 192.168.101.11:32847 212.23.3.98:25 SYN_SENT 7930/telnet tcp 0 0 :::993 :::* LISTEN 3416/dovecot tcp 0 0 :::995 :::* LISTEN 3416/dovecot tcp 0 0 :::110 :::* LISTEN 3416/dovecot tcp 0 0 :::143 :::* LISTEN 3416/dovecot tcp 0 0 :::80 :::* LISTEN 2345/httpd tcp 0 0 :::22 :::* LISTEN 2217/sshd tcp 0 0 :::25 :::* LISTEN 5201/master tcp 0 0 :::443 :::* LISTEN 2345/httpd tcp 0 0 ::ffff:192.168.101.11:22 ::ffff:192.168.101.20:4450 ESTABLISHED 3319/0 tcp 0 192 ::ffff:192.168.101.11:22 ::ffff:192.168.101.20:4758 ESTABLISHED 5724/1
I notice that there's an attempt to make a connection but that's it - any ideas what might be causing this - I'm not running a server-based firewall.
Over to you with thanks.
Nigel
Nigel Kendrick wrote:
I've just installed Centos 4 on an Acer G310 server - everything's gone well except I'm not able to SMTP connect to my upstream mail server (I've installed postfix + MailScanner) - I managed to find sort out the dovecot side of things but SMTP remains quite silent - the maillog shows an attempted connect but then a timeout:
May 9 13:08:45 woking postfix/smtp[7895]: deliver_request_final: send: "connect to mailhost.zen.co.uk[212.23.3.98]: Connection timed out" -1
If I connect manually (telnet mailhost.zen.co.uk 25) nothing happens - no response is shown and I presume if I left things for long enough I'd see a timeout message? Here's the output from netstat -pant:
Do you have the firewall turned on and filtering port 25? If you can't telnet to the remote host port manually then you're getting filtered either on your host or on the remote host.
Cheers,
C
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Chris Mauritz Sent: 09 May 2005 13:36 To: CentOS mailing list Subject: Re: [CentOS] Centos 4 / Postfix / SMTP
Nigel Kendrick wrote:
I've just installed Centos 4 on an Acer G310 server - everything's gone well except I'm not able to SMTP connect to my upstream mail server (I've installed postfix + MailScanner) - I managed to find sort out the dovecot side of things but SMTP remains quite silent - the maillog shows an attempted connect but then a timeout:
May 9 13:08:45 woking postfix/smtp[7895]: deliver_request_final: send: "connect to mailhost.zen.co.uk[212.23.3.98]: Connection timed out" -1
If I connect manually (telnet mailhost.zen.co.uk 25) nothing happens - no response is shown and I presume if I left things for long enough I'd see a timeout message? Here's the output from netstat -pant:
Do you have the firewall turned on and filtering port 25? If you can't telnet to the remote host port manually then you're getting filtered either on your host or on the remote host.
Cheers,
C
Nope - no firewall - I've just double checked:
[root@woking ~]# chkconfig --list | grep ip iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Nigel
Chris Mauritz <> scribbled on Monday, May 09, 2005 7:47 AM:
Nigel Kendrick wrote:
Nope - no firewall - I've just double checked:
[root@woking ~]# chkconfig --list | grep ip iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Can you telnet to port 25 of your upstream host from another "known working" system?
Cheers,
C
What does iptables -L show you?
Can you ping a host outside your network (google.com for example)?
Mike
Mike Kercher wrote:
Chris Mauritz <> scribbled on Monday, May 09, 2005 7:47 AM:
Nigel Kendrick wrote:
Nope - no firewall - I've just double checked:
[root@woking ~]# chkconfig --list | grep ip iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Can you telnet to port 25 of your upstream host from another "known working" system?
Cheers,
C
What does iptables -L show you?
Can you ping a host outside your network (google.com for example)?
Mike
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
What does it show me ? or anyone ?
It shows currently running firewall rules doesnt it ?
Cheers,
Bards.
bards1888 wrote:
Mike Kercher wrote:
Chris Mauritz <> scribbled on Monday, May 09, 2005 7:47 AM:
Nigel Kendrick wrote:
Nope - no firewall - I've just double checked:
[root@woking ~]# chkconfig --list | grep ip iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Can you telnet to port 25 of your upstream host from another "known working" system?
Cheers,
C
What does iptables -L show you?
Can you ping a host outside your network (google.com for example)?
Mike
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
What does it show me ? or anyone ?
It shows currently running firewall rules doesnt it ?
Cheers,
Bards. _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Ignore me, I've been staring at the screen for way to long today.
OHMYGOD I am a grade 1 pillock:
All sites hosting our mail servers have Zen as their ISP but where I am now it's using BT - so I guess it's not a good idea to try and use Zen's server from a BT account - mind you some kind of error return when I tried to connect might have helped!
Nigel
PS: Thanks Mike - I've just seen your separate email about this - I think I beat you by about 2 mins!
Hi all i need to help to configure samba to pdc ? i do something but i connot join to samba server from my xp machine. are any thing that i should do ? can you help me configuration and windows xp setup ?
Umit Akarsu wrote:
Hi all i need to help to configure samba to pdc ? i do something but i connot join to samba server from my xp machine. are any thing that i should do ? can you help me configuration and windows xp setup ?
This http://www-106.ibm.com/developerworks/eserver/tutorials/samba/ should help. I just checked and WinXP (client) is covered.
El lun, 09-05-2005 a las 17:26 +0300, Umit Akarsu escribió:
Hi all
Hi
i need to help to configure samba to pdc ? i do something but i connot join to samba server from my xp machine. are any thing that i should do ? can you help me configuration and windows xp setup ?
I did such kind of setup a few times, and I have found this document very helpfull
http://www.idealx.org/prj/samba/index.en.html
On 5/10/05, Hardy Beltran Monasterios hardy@hardy.com.bo wrote:
I did such kind of setup a few times, and I have found this document very helpfull
Agree... I've used the IdealX doco several times and find it works extremely well. :-)
Nigel Kendrick wrote:
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Chris Mauritz Sent: 09 May 2005 13:36 To: CentOS mailing list Subject: Re: [CentOS] Centos 4 / Postfix / SMTP
Nigel Kendrick wrote:
I've just installed Centos 4 on an Acer G310 server - everything's gone well except I'm not able to SMTP connect to my upstream mail server (I've installed postfix + MailScanner) - I managed to find sort out the dovecot side of things but SMTP remains quite silent - the maillog shows an attempted connect but then a timeout:
May 9 13:08:45 woking postfix/smtp[7895]: deliver_request_final: send: "connect to mailhost.zen.co.uk[212.23.3.98]: Connection timed out" -1
If I connect manually (telnet mailhost.zen.co.uk 25) nothing happens - no response is shown and I presume if I left things for long enough I'd see a timeout message? Here's the output from netstat -pant:
Do you have the firewall turned on and filtering port 25? If you can't telnet to the remote host port manually then you're getting filtered either on your host or on the remote host.
Cheers,
C
Nope - no firewall - I've just double checked:
[root@woking ~]# chkconfig --list | grep ip iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Nigel
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
That only confirms that the service is not configured to auto-start (which I agree, should me it is not running) but you may want to confirm this by running something like 'iptables -L'
Cheers,
Bards.
-
bards1888 -
Chris Mauritz -
Hardy Beltran Monasterios -
Matt Bottrell -
Mike Kercher -
Nigel Kendrick -
Robert -
Umit Akarsu