All services refused incoming connections

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John

13 Oct 2004 13 Oct '04

14:13

I have installed a SUSE 9 Pro Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections. I can only access it from its monitor (i plugged a monitor to it) What could cause such a big mess?

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Bruce Marshall

13 Oct 13 Oct

14:45

New subject: [SLE] All services refused incoming connections

On Wednesday 13 October 2004 10:13, John wrote:

...

I have installed a SUSE 9 Pro Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections.

I can only access it from its monitor (i plugged a monitor to it)

What could cause such a big mess?

A firewall?? (or lack thereof) (the settings for iptables.) Do an iptables -L to find the current settings.

John

15:41

New subject: [SLE] All services refused incoming connections

eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected. ----- Original Message ----- From: "Bruce Marshall" To: "SLE" Sent: Wednesday, October 13, 2004 5:45 PM Subject: Re: [SLE] All services refused incoming connections

...

On Wednesday 13 October 2004 10:13, John wrote:

...
I have installed a SUSE 9 Pro Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections.

I can only access it from its monitor (i plugged a monitor to it)

What could cause such a big mess?

A firewall?? (or lack thereof)

(the settings for iptables.)

Do an iptables -L to find the current settings.

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

Jeffrey Laramie

15:51

New subject: [SLE] All services refused incoming connections

On Wednesday 13 October 2004 11:41, John wrote:

...

eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

Can you ping the server from outside? What error messages do you get when you try to connect? Any recent changes in the network? Recent updates to the server? Jeff

John

16:24

New subject: [SLE] All services refused incoming connections

I have applied all the patches that suse provide for my installed packages. Can something be broken? a Library? ----- Original Message ----- From: "Jeffrey Laramie" To: Sent: Wednesday, October 13, 2004 6:51 PM Subject: Re: [SLE] All services refused incoming connections

...

On Wednesday 13 October 2004 11:41, John wrote:

...
eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

Can you ping the server from outside? What error messages do you get when you try to connect? Any recent changes in the network? Recent updates to the server?

Jeff

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

Leendert Meyer

15:54

New subject: [SLE] All services refused incoming connections

On Wednesday 13 October 2004 17:41, John wrote:

...

eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

You did not tell how the internet connection is working. Are all plugs properly connected? Can you ping to the outside world? Anything in /var/log/messages of /var/log/warn? Cheers, Leen

John

16:12

New subject: [SLE] All services refused incoming connections

Now every permitted ip (from tcpwrapper) can send a SYN but only that as it is stated in the netstat command. (SYN_REIVEVED) Firewall accepts as always to that port (ie 21, or 80) I haven;t done anything in my configuration. I used xinetd to start the vsftpd. What else should i provide to you? ----- Original Message ----- From: "Leendert Meyer" To: Sent: Wednesday, October 13, 2004 6:54 PM Subject: Re: [SLE] All services refused incoming connections

...

On Wednesday 13 October 2004 17:41, John wrote:

...
eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

You did not tell how the internet connection is working. Are all plugs properly connected? Can you ping to the outside world?

Anything in /var/log/messages of /var/log/warn?

Cheers,

Leen

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

Bruce Marshall

15:56

New subject: [SLE] All services refused incoming connections

On Wednesday 13 October 2004 11:41, John wrote:

...

eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

Obviously something is *not* 'properly'. Something *has* changed.

John

16:18

New subject: [SLE] All services refused incoming connections

I can pingthe machine? Something block all my tcp services. Rootkit hunter found nothing dangerous. I thought i has shield my box as well as i could. What should i check? ----- Original Message ----- From: "Bruce Marshall" To: "SLE" Sent: Wednesday, October 13, 2004 6:56 PM Subject: Re: [SLE] All services refused incoming connections

...

On Wednesday 13 October 2004 11:41, John wrote:

...
eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

Obviously something is *not* 'properly'. Something *has* changed.

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

Johan Nielsen

14 Oct 14 Oct

20:45

New subject: [SLE] All services refused incoming connections

Onsdag den 13. oktober 2004 17:41 skrev John:

...

eveything has been configured properly. All have been working for 6 months great but suddendly all of them refused to get connected.

A fun think my router sometimes screws up with the same result It's running dhcp-mode (the router) and I can assign "correct IP" based on MAC-address of the network card in that PC. BUT sometimes it assigns another IP bu pure magic. An then you can forward all the traffic you want to the "normal" local IP and shit happens. First time this happend I lost quite a while hunting down that mishap ;-)

...

----- Original Message ----- From: "Bruce Marshall" To: "SLE" Sent: Wednesday, October 13, 2004 5:45 PM Subject: Re: [SLE] All services refused incoming connections

...
On Wednesday 13 October 2004 10:13, John wrote:

...
I have installed a SUSE 9 Pro Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections.

I can only access it from its monitor (i plugged a monitor to it)

What could cause such a big mess?

A firewall?? (or lack thereof)

(the settings for iptables.)

Do an iptables -L to find the current settings.

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

Dan Am

13 Oct 13 Oct

16:26

New subject: [SLE] All services refused incoming connections

Am Wednesday 13 October 2004 16:13 schrieb John:

...

Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections. What is the output of iptables -L ?

Regards Dan -- buddha 2.6.4-54.5-default 9:05am an 19:31, 1 Benutzer,

John

16:44

New subject: [SLE] All services refused incoming connections

All of sudden it worked again as it used to. My firewall is the default SUSE 9 Pro built in firewall with 21, 3306, 80, 22 ports opened. Also the 123 udp for the ntpd. Nothing else. Could it be afailure of disk? ----- Original Message ----- From: "Dan Am" To: Sent: Wednesday, October 13, 2004 7:26 PM Subject: Re: [SLE] All services refused incoming connections

...

Am Wednesday 13 October 2004 16:13 schrieb John:

...
Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections. What is the output of iptables -L ?

Regards Dan -- buddha 2.6.4-54.5-default 9:05am an 19:31, 1 Benutzer,

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

John

17:01

New subject: [SLE] All services refused incoming connections

I noticed that i cannot connect from my pc (win2k) Putty's error (Network error: Software caused connection abort) I can login to other SUSE 9 Pro boxes but not this. Can this sshd server be broken? ----- Original Message ----- From: "John" To: Sent: Wednesday, October 13, 2004 7:44 PM Subject: Re: [SLE] All services refused incoming connections

...

All of sudden it worked again as it used to.

My firewall is the default SUSE 9 Pro built in firewall with 21, 3306, 80, 22 ports opened. Also the 123 udp for the ntpd.

Nothing else.

Could it be afailure of disk?

----- Original Message ----- From: "Dan Am" To: Sent: Wednesday, October 13, 2004 7:26 PM Subject: Re: [SLE] All services refused incoming connections

...
Am Wednesday 13 October 2004 16:13 schrieb John:

...
Suddendly i noticed that all my services (ssh, mysql, http, ftp) refused incoming connections. What is the output of iptables -L ?

Regards Dan -- buddha 2.6.4-54.5-default 9:05am an 19:31, 1 Benutzer,

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com

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participants (6)

Bruce Marshall
Dan Am
Jeffrey Laramie
Johan Nielsen
John
Leendert Meyer