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  #1  
Old 6th December 2011, 11:09
tbctr tbctr is offline
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Default Ubuntu 11.10 With Nginx [ISPConfig 3] port problem
http://www.howtoforge.com/perfect-se...nx-ispconfig-3 installed 2 different machine. Local network access ok. adsl modem port forwarding okey (21,22,23,53,80,110,143,443,587,3306,8080). Debian 6 installed other server running no problem. Ubuntu nginx server restrict access on internet. mxtoolbox.com my ip port scan results 23,53,80 success and 21,22,25,110,143..... and other port error "No connection could be made because the target machine actively refused it"

What is the solution ?
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  #2  
Old 7th December 2011, 13:20
falko falko is offline
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What are the outputs of
Code:
netstat -tap
and
Code:
iptables -L
on the Ubuntu server?

Does your router forward the ports to the correct server?
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  #3  
Old 7th December 2011, 16:30
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netstat
Code:
root@sunucu:~# netstat -tap
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 localhost.localdom:9000 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 localhost.localdo:10024 *:*                     LISTEN      1050/amavisd (maste
tcp        0      0 localhost.localdo:10025 *:*                     LISTEN      2406/master
tcp        0      0 *:mysql                 *:*                     LISTEN      939/mysqld
tcp        0      0 *:http-alt              *:*                     LISTEN      1896/nginx
tcp        0      0 *:www                   *:*                     LISTEN      1896/nginx
tcp        0      0 *:tproxy                *:*                     LISTEN      1896/nginx
tcp        0      0 localhost.localdom:9010 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 localhost.localdom:9011 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 localhost.localdom:9012 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 *:ftp                   *:*                     LISTEN      2091/pure-ftpd (SER
tcp        0      0 localhost.localdom:9013 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 sunucu.siberbilg:domain *:*                     LISTEN      1070/named
tcp        0      0 sunucu.siberbilg:domain *:*                     LISTEN      1070/named
tcp        0      0 localhost.locald:domain *:*                     LISTEN      1070/named
tcp        0      0 localhost.localdom:9014 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 *:ssh                   *:*                     LISTEN      757/sshd
tcp        0      0 localhost.localdom:9015 *:*                     LISTEN      1938/php-fpm.conf)
tcp        0      0 *:smtp                  *:*                     LISTEN      2406/master
tcp        0      0 localhost.localdoma:953 *:*                     LISTEN      1070/named
tcp        0      0 localhost.localdo:47143 localhost.localdo:mysql ESTABLISHED 28850/amavisd (ch7-
tcp        0      0 localhost.localdo:47129 localhost.localdo:mysql ESTABLISHED 28695/amavisd (ch8-
tcp        0    248 sunucu.siberbilgisa:ssh 192.168.2.138:52647     ESTABLISHED 30669/0
tcp        0      0 localhost.localdo:mysql localhost.localdo:47143 ESTABLISHED 939/mysqld
tcp        0      0 localhost.localdo:mysql localhost.localdo:47129 ESTABLISHED 939/mysqld
tcp6       0      0 [::]:imaps              [::]:*                  LISTEN      1721/couriertcpd
tcp6       0      0 [::]:pop3s              [::]:*                  LISTEN      1771/couriertcpd
tcp6       0      0 [::]:pop3               [::]:*                  LISTEN      1743/couriertcpd
tcp6       0      0 [::]:imap2              [::]:*                  LISTEN      1688/couriertcpd
tcp6       0      0 [::]:ftp                [::]:*                  LISTEN      2091/pure-ftpd (SER
tcp6       0      0 [::]:domain             [::]:*                  LISTEN      1070/named
tcp6       0      0 [::]:ssh                [::]:*                  LISTEN      757/sshd
tcp6       0      0 ip6-localhost:953       [::]:*                  LISTEN      1070/named
iptables
Code:
root@sunucu:~# iptables -L
Chain INPUT (policy DROP)
target     prot opt source               destination
DROP       tcp  --  anywhere             127.0.0.0/8
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     all  --  anywhere             anywhere
DROP       all  --  base-address.mcast.net/4  anywhere
PUB_IN     all  --  anywhere             anywhere
PUB_IN     all  --  anywhere             anywhere
PUB_IN     all  --  anywhere             anywhere
PUB_IN     all  --  anywhere             anywhere
DROP       all  --  anywhere             anywhere

Chain FORWARD (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
DROP       all  --  anywhere             anywhere

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
PUB_OUT    all  --  anywhere             anywhere
PUB_OUT    all  --  anywhere             anywhere
PUB_OUT    all  --  anywhere             anywhere
PUB_OUT    all  --  anywhere             anywhere

Chain INT_IN (0 references)
target     prot opt source               destination
ACCEPT     icmp --  anywhere             anywhere
DROP       all  --  anywhere             anywhere

Chain INT_OUT (0 references)
target     prot opt source               destination
ACCEPT     icmp --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere

Chain PAROLE (15 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere

Chain PUB_IN (4 references)
target     prot opt source               destination
ACCEPT     icmp --  anywhere             anywhere            icmp destination-unreachable
ACCEPT     icmp --  anywhere             anywhere            icmp echo-reply
ACCEPT     icmp --  anywhere             anywhere            icmp time-exceeded
ACCEPT     icmp --  anywhere             anywhere            icmp echo-request
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:ftp-data
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:ftp
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:ssh
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:smtp
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:domain
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:www
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:pop3
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:imap2
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:https
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:imaps
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:pop3s
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:mysql
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:http-alt
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:tproxy
PAROLE     tcp  --  anywhere             anywhere            tcp dpt:webmin
ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain
ACCEPT     udp  --  anywhere             anywhere            udp dpt:mysql
DROP       icmp --  anywhere             anywhere
DROP       all  --  anywhere             anywhere

Chain PUB_OUT (4 references)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere

Chain fail2ban-courierimap (0 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

Chain fail2ban-courierpop3 (0 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

Chain fail2ban-courierpop3s (0 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

Chain fail2ban-sasl (0 references)
target     prot opt source               destination

Chain fail2ban-ssh (0 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere
1- on the Ubuntu server?

2- Does your router forward the ports to the correct server?

1- Yes Ubuntu server.
2- Yes correct server
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  #4  
Old 7th December 2011, 16:34
tbctr tbctr is offline
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tcp 0 248 sunucu.siberbilgisa:ssh 192.168.2.138:52647 ESTABLISHED 30669/0 . I could not understand it

Ubuntu server local ip : 192.168.2.250

Other server debian : 192.168.2.200 no problem port.


add : 192.168.2.138 my pc ip
Last edited by tbctr; 7th December 2011 at 18:11.
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  #5  
Old 7th December 2011, 16:58
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System information as of Wed Dec 7 17:52:54 EET 2011

System load: 1.49 Processes: 292
Usage of /: 4.5% of 145.50GB Users logged in: 0
Memory usage: 46% IP address for eth0: 192.168.2.250
Swap usage: 0%
--------------------------------------------------------------------------
vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.2.250
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255
gateway 192.168.2.1
~

---------------------------------------------------
vi /etc/hosts

127.0.0.1 localhost.localdomain localhost
192.168.2.250 sunucu.siberbilgxxxxx sunucu

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
Last edited by falko; 11th December 2011 at 20:59.
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  #6  
Old 8th December 2011, 19:43
falko falko is offline
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Can you turn off the firewall for testing purposes? Does it work then?
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  #7  
Old 8th December 2011, 19:48
tbctr tbctr is offline
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Which firewall ?
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  #8  
Old 9th December 2011, 10:22
falko falko is offline
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On the Ubuntu server. You can use ISPConfig to switch it off.
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  #9  
Old 9th December 2011, 11:24
tbctr tbctr is offline
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Quote:
Originally Posted by falko View Post
On the Ubuntu server. You can use ISPConfig to switch it off.
Firewall - Basic - Add Firewall record --- testing and problem in progress. Remove firewall record again problem in progress. No change
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  #10  
Old 10th December 2011, 11:43
falko falko is offline
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So the problem must be your router or your ISP that blocks some ports. Please check.
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