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Obsolete Releases => SME Server 7.x => Topic started by: crazybob on January 25, 2010, 07:45:50 PM

Title: blocked by remote server.
Post by: crazybob on January 25, 2010, 07:45:50 PM
There is a remote sme server that I was able to access until late last week. I was connected via openvpn, and in the process of transferring some files to a work station on their network when I lost connection.

When I tried to re-establish connection, it failed. When I tried to access their server-manager, (which I used to be able to) it fails. I went to the location of the remote server, and checked the iptable log, and is shows I am being denied.

I am new to iptables, and need some direction

The remote server is either 7.3 or 7.4

Thanks
Title: Re: blocked by remote server.
Post by: CharlieBrady on January 25, 2010, 08:09:35 PM
I am new to iptables, and need some direction

You shouldn't need to know anything about iptables (and the openvpn packets shouldn't be being blocked). I presume you are using a contrib, and the contrib should be doing all the iptables changes necessary to allow the contrib to work. File a bug report against the contrib.
Title: Re: blocked by remote server.
Post by: crazybob on January 25, 2010, 08:20:20 PM
Thanks Charlie, but it is not just openvpn that is being blocked from my server. it is everything. I cannot even ping the remote IP, or ssh into it. I can shh into another server and ping the problem server with out a problem.

 Bug 5727 opened
Title: Re: blocked by remote server.
Post by: p-jones on January 25, 2010, 10:52:11 PM
Crazybob

What happens when you do a tracert to the remote server ?
Title: Re: blocked by remote server.
Post by: crazybob on January 25, 2010, 11:14:14 PM
traceroute to xxx.xxx.xxx (xxx.xxx.xxx.xxx), 30 hops max, 38 byte packets
 1  hyyy.yyy.yyy.yyy.wyngmi.dedicated.static.tds.net (zzz.zzz.zzz.zzz)  0.263 ms  0.230 ms  0.203 ms
 2  cntcnhbas01-lo0-secondary3.network.tds.net (69.129.156.1)  3.854 ms  11.285 ms  8.084 ms
 3  h69-21-150-153.mdsnwi.tisp.static.tds.net (69.21.150.153)  5.436 ms  4.591 ms  4.241 ms
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * *
We are both using the same isp and have static ip's, and are only about 2 mile apart.
Title: Re: blocked by remote server.
Post by: janet on January 26, 2010, 03:24:42 AM
crazybob

It's not a diagnostic approach, but it could save time.
Did you reboot both servers ?
Title: Re: blocked by remote server.
Post by: crazybob on January 26, 2010, 03:50:28 AM
Thanks Mary,
I did reboot the remote one while on site, and the local one when I updated software over the weekend. :)
Title: Re: blocked by remote server.
Post by: janet on January 26, 2010, 05:59:24 AM
crazybob

Do a port scan on the remote server.
Anything happen with your ISP or router ?
Title: Re: blocked by remote server.
Post by: crazybob on January 26, 2010, 04:40:58 PM
Hi Mary,
This is only between these two servers. I can connect to many other servers, and other servers can connect my problem child. It appears my ip has been blocked. :-(
Title: Re: blocked by remote server.
Post by: Stefano on January 26, 2010, 09:33:37 PM
There is a remote sme server that I was able to access until late last week. I was connected via openvpn, and in the process of transferring some files to a work station on their network when I lost connection.

When I tried to re-establish connection, it failed. When I tried to access their server-manager, (which I used to be able to) it fails. I went to the location of the remote server, and checked the iptable log, and is shows I am being denied.

I am new to iptables, and need some direction

The remote server is either 7.3 or 7.4

Thanks

well, unfortunately my crystal ball is broken and I can't help you but you could help us to better understand, for example if:
- are the servers in server-only mode? or in server and gateway?
- did you install any contrib on the target server

thank you
Title: Re: blocked by remote server.
Post by: crazybob on January 26, 2010, 09:54:04 PM
The remote server is server-gateway mode. I know awstats, openvpn, and vmware are installed, and have been running flawlessly for over a year.

The server is SME 7.3 Last update unknown
Title: Re: blocked by remote server.
Post by: CharlieBrady on January 26, 2010, 10:11:10 PM
Mary/Stefano/others, please do not try to debug here. All followup to the bug tracker please:

http://bugs.contribs.org/show_bug.cgi?id=5727
Title: Re: blocked by remote server.
Post by: byte on January 26, 2010, 10:39:54 PM
Mary/Stefano/others, please do not try to debug here. All followup to the bug tracker please:

http://bugs.contribs.org/show_bug.cgi?id=5727

Locking thread - Please follow up on above bug reference. Thanks.